{"id":2941,"date":"2023-07-14T15:33:16","date_gmt":"2023-07-14T07:33:16","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2941"},"modified":"2023-07-14T15:33:19","modified_gmt":"2023-07-14T07:33:19","slug":"mybatis%e7%b3%bb%e5%88%97%e7%ac%ac12%e7%af%87%ef%bc%9a%e6%8e%8c%e6%8f%a1%e7%bc%93%e5%ad%98%e4%b8%ba%e6%9f%a5%e8%af%a2%e6%8f%90%e9%80%9f","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/spring-boot\/mybatis%e7%b3%bb%e5%88%97%e7%ac%ac12%e7%af%87%ef%bc%9a%e6%8e%8c%e6%8f%a1%e7%bc%93%e5%ad%98%e4%b8%ba%e6%9f%a5%e8%af%a2%e6%8f%90%e9%80%9f\/","title":{"rendered":"Mybatis\u7cfb\u5217\u7b2c12\u7bc7\uff1a\u638c\u63e1\u7f13\u5b58\u4e3a\u67e5\u8be2\u63d0\u901f!"},"content":{"rendered":"
\n

Mybatis\u7cfb\u5217\u76ee\u6807\uff1a\u4ece\u5165\u95e8\u5f00\u59cb\u5f00\u59cb\u638c\u63e1\u4e00\u4e2a\u9ad8\u7ea7\u5f00\u53d1\u6240\u9700\u8981\u7684Mybatis\u6280\u80fd\u3002<\/strong><\/p>\n

\u8fd9\u662fmybatis\u7cfb\u5217\u7b2c12\u7bc7\uff0c\u6e90\u7801\u4f4d\u4e8e\u6587\u7ae0\u5c3e\u90e8\uff01<\/strong><\/p>\n

\u4ec0\u4e48\u662f\u7f13\u5b58\uff1f<\/span> <\/span><\/h3>\n

\u7f13\u5b58\u5c31\u662f\u5b58\u50a8\u6570\u636e\u7684\u4e00\u4e2a\u5730\u65b9\uff08\u79f0\u4f5c\uff1aCache\uff09\uff0c\u5f53\u7a0b\u5e8f\u8981\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u4f1a\u9996\u5148\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\uff0c\u6709\u5219\u76f4\u63a5\u8fd4\u56de\uff0c\u5426\u5219\u4ece\u5176\u4ed6\u5b58\u50a8\u8bbe\u5907\u4e2d\u83b7\u53d6\uff0c\u7f13\u5b58\u6700\u91cd\u8981\u7684\u4e00\u70b9\u5c31\u662f\u4ece\u5176\u5185\u90e8\u83b7\u53d6\u6570\u636e\u7684\u901f\u5ea6\u662f\u975e\u5e38\u5feb\u7684\uff0c\u901a\u8fc7\u7f13\u5b58\u53ef\u4ee5\u52a0\u5feb\u6570\u636e\u7684\u8bbf\u95ee\u901f\u5ea6\u3002\u6bd4\u5982\u6211\u4eec\u4ecedb\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u4e2d\u95f4\u9700\u8981\u7ecf\u8fc7\u7f51\u7edc\u4f20\u8f93\u8017\u65f6\uff0cdb server\u4ece\u78c1\u76d8\u8bfb\u53d6\u6570\u636e\u8017\u65f6\u7b49\uff0c\u5982\u679c\u8fd9\u4e9b\u6570\u636e\u76f4\u63a5\u653e\u5728jvm\u5bf9\u5e94\u7684\u5185\u5b58\u4e2d\uff0c\u8bbf\u95ee\u662f\u4e0d\u662f\u4f1a\u5feb\u5f88\u591a\u3002<\/strong><\/p>\n

mybatis\u4e2d\u7684\u7f13\u5b58<\/span> <\/span><\/h3>\n

\u901a\u5e38\u60c5\u51b5\u4e0bmybatis\u4f1a\u8bbf\u95ee\u6570\u636e\u5e93\u83b7\u53d6\u6570\u636e\uff0c\u4e2d\u95f4\u6d89\u53ca\u5230\u7f51\u7edc\u901a\u4fe1\uff0c\u6570\u636e\u5e93\u4ece\u78c1\u76d8\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u7136\u540e\u5c06\u6570\u636e\u8fd4\u56de\u7ed9mybatis\uff0c\u603b\u7684\u6765\u8bf4\u8017\u65f6\u8fd8\u662f\u633a\u957f\u7684\uff0cmybatis\u4e3a\u4e86\u52a0\u5feb\u6570\u636e\u67e5\u8be2\u7684\u901f\u5ea6\uff0c\u5728\u5176\u5185\u90e8\u5f15\u5165\u4e86\u7f13\u5b58\u6765\u52a0\u5feb\u6570\u636e\u7684\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n

mybatis\u4e2d\u5206\u4e3a\u4e00\u7ea7\u7f13\u5b58\u548c\u4e8c\u7ea7\u7f13\u5b58\u3002<\/p>\n

\u4e00\u7ea7\u7f13\u5b58\u662fSqlSession\u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u5728\u64cd\u4f5c\u6570\u636e\u5e93\u65f6\u9700\u8981\u6784\u9020 sqlSession\u5bf9\u8c61\uff0c\u5728\u5bf9\u8c61\u4e2d\u6709\u4e00\u4e2a\u6570\u636e\u7ed3\u6784\uff08HashMap\uff09\u7528\u4e8e\u5b58\u50a8\u7f13\u5b58\u6570\u636e\uff0c\u4e0d\u540c\u7684sqlSession\u4e4b\u95f4\u7684\u7f13\u5b58\u6570\u636e\u533a\u57df\uff08HashMap\uff09\u662f\u4e92\u76f8\u4e0d\u5f71\u54cd\u7684\u3002<\/p>\n

\u4e8c\u7ea7\u7f13\u5b58\u662fmapper\u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u591a\u4e2aSqlSession\u53bb\u64cd\u4f5c\u540c\u4e00\u4e2aMapper\u7684sql\u8bed\u53e5\uff0c\u591a\u4e2aSqlSession\u53ef\u4ee5\u5171\u7528\u4e8c\u7ea7\u7f13\u5b58\uff0c\u4e8c\u7ea7\u7f13\u5b58\u662f\u8de8SqlSession\u7684\u3002<\/p>\n

\u4e0b\u9762\u6211\u4eec\u8be6\u7ec6\u8bf4\u4e00\u4e0b\u4e00\u7ea7\u7f13\u5b58\u548c\u4e8c\u7ea7\u7f13\u5b58\u7684\u5404\u79cd\u7528\u6cd5\u548c\u6ce8\u610f\u70b9\u3002<\/p>\n

\u4e00\u7ea7\u7f13\u5b58<\/span> <\/span><\/h3>\n

\u4e00\u7ea7\u7f13\u5b58\u662fSqlSession\u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u6bcf\u4e2aSqlSession\u90fd\u6709\u81ea\u5df1\u5355\u72ec\u7684\u4e00\u7ea7\u7f13\u5b58\uff0c\u591a\u4e2aSqlSession\u4e4b\u95f4\u7684\u4e00\u7ea7\u7f13\u5b58\u662f\u76f8\u4e92\u9694\u79bb\u7684\uff0c\u4e92\u4e0d\u5f71\u54cd\uff0cmybatis\u4e2d\u4e00\u7ea7\u7f13\u5b58\u662f\u9ed8\u8ba4\u81ea\u52a8\u5f00\u542f\u7684\u3002<\/strong><\/p>\n

\u4e00\u7ea7\u7f13\u5b58\u5de5\u4f5c\u539f\u7406\uff1a\u5728\u540c\u4e00\u4e2aSqlSession\u4e2d\u53bb\u591a\u6b21\u53bb\u6267\u884c\u540c\u6837\u7684\u67e5\u8be2\uff0c\u6bcf\u6b21\u6267\u884c\u7684\u65f6\u5019\u4f1a\u5148\u5230\u4e00\u7ea7\u7f13\u5b58\u4e2d\u67e5\u627e\uff0c\u5982\u679c\u7f13\u5b58\u4e2d\u6709\u5c31\u76f4\u63a5\u8fd4\u56de\uff0c\u5982\u679c\u4e00\u7ea7\u7f13\u5b58\u4e2d\u6ca1\u6709\u76f8\u5173\u6570\u636e\uff0cmybatis\u5c31\u4f1a\u53bbdb\u4e2d\u8fdb\u884c\u67e5\u627e\uff0c\u7136\u540e\u5c06\u67e5\u627e\u5230\u7684\u6570\u636e\u653e\u5165\u4e00\u7ea7\u7f13\u5b58\u4e2d\uff0c\u7b2c\u4e8c\u6b21\u6267\u884c\u540c\u6837\u7684\u67e5\u8be2\u7684\u65f6\u5019\uff0c\u4f1a\u53d1\u73b0\u7f13\u5b58\u4e2d\u5df2\u7ecf\u5b58\u5728\u4e86\uff0c\u4f1a\u76f4\u63a5\u8fd4\u56de\u3002\u4e00\u7ea7\u7f13\u5b58\u7684\u5b58\u50a8\u4ecb\u8d28\u662f\u5185\u5b58\uff0c\u662f\u7528\u4e00\u4e2aHashMap\u6765\u5b58\u50a8\u6570\u636e\u7684\uff0c\u6240\u4ee5\u8bbf\u95ee\u901f\u5ea6\u662f\u975e\u5e38\u5feb\u7684\u3002<\/strong><\/p>\n

\u4e00\u7ea7\u7f13\u5b58\u6848\u4f8b<\/span><\/h4>\n
\u6848\u4f8bsql\u811a\u672c<\/span><\/h5>\n
DROP<\/span> DATABASE<\/span> IF<\/span> EXISTS<\/span> `javacode2018`<\/span>;\nCREATE<\/span> DATABASE<\/span> `javacode2018`<\/span>;\n\nUSE<\/span> `javacode2018`<\/span>;\n\nDROP<\/span> TABLE<\/span> IF<\/span> EXISTS<\/span> t_user;\nCREATE<\/span> TABLE<\/span> t_user(\n  id<\/span> int<\/span> AUTO_INCREMENT PRIMARY KEY<\/span> COMMENT<\/span> '\u7528\u6237id'<\/span>,\n  name<\/span> VARCHAR<\/span>(32<\/span>) NOT<\/span> NULL<\/span> DEFAULT<\/span> ''<\/span> COMMENT<\/span> '\u7528\u6237\u540d'<\/span>,\n  age SMALLINT<\/span> NOT<\/span> NULL<\/span> DEFAULT<\/span> 1<\/span> COMMENT<\/span> '\u5e74\u9f84'<\/span>\n) COMMENT<\/span> '\u7528\u6237\u8868'<\/span>;\nINSERT<\/span> INTO<\/span> t_user VALUES<\/span> (1<\/span>,'\u8def\u4eba\u7532Java'<\/span>,30<\/span>),(2<\/span>,'\u5f20\u5b66\u53cb'<\/span>,50<\/span>),(3<\/span>,'\u5218\u5fb7\u534e'<\/span>,50<\/span>);\n<\/code><\/pre>\n
\u4e0b\u9762\u662f\u67e5\u8be2\u7528\u6237\u4fe1\u606f\uff0c\u8fd4\u56de\u4e00\u4e2alist<\/span><\/h5>\n
<select<\/span> id<\/span>=\"getList1\"<\/span> resultType<\/span>=\"com.javacode2018.chat05.demo9.model.UserModel\"<\/span> parameterType<\/span>=\"map\"<\/span>><\/span>\n    SELECT id,name,age FROM t_user\n    <where<\/span>><\/span>\n        <if<\/span> test<\/span>=\"id!=null\"<\/span>><\/span>\n            AND id = #{id}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"name!=null and name.toString()!=''\"<\/span>><\/span>\n            AND name = #{name}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"age!=null\"<\/span>><\/span>\n            AND age = #{age}\n        <\/if<\/span>><\/span>\n    <\/where<\/span>><\/span>\n<\/select<\/span>><\/span>\n<\/code><\/pre>\n
\u5bf9\u5e94\u7684mapper\u63a5\u53e3\u65b9\u6cd5<\/span><\/h5>\n
List<UserModel> getList1<\/span>(Map<String, Object> paramMap)<\/span><\/span>;\n<\/code><\/pre>\n
\u6d4b\u8bd5\u7528\u4f8b<\/span><\/h5>\n
com.javacode2018.chat05.demo9.Demo9Test#level1CacheTest1\n\n\/**\n * \u4e00\u7ea7\u7f13\u5b58\u6d4b\u8bd5\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level1CacheTest1<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        \/\/\u7b2c\u4e00\u6b21\u67e5\u8be2<\/span>\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n        \/\/\u7b2c\u4e8c\u6b21\u67e5\u8be2<\/span>\n        List<UserModel> userModelList2 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList2);\n        log.info(\"{}\"<\/span>, userModelList1 == userModelList2);\n    }\n}\n<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u5728\u540c\u4e00\u4e2aSqlSession\u4e2d\u53bb\u6267\u884c\u4e862\u6b21\u83b7\u53d6\u7528\u6237\u5217\u8868\u4fe1\u606f\uff0c2\u6b21\u67e5\u8be2\u7ed3\u679c\u5206\u522b\u653e\u5728userModelList1<\/code>\u548cuserModelList2<\/code>\uff0c\u6700\u7ec8\u4ee3\u7801\u4e2d\u4e5f\u4f1a\u5224\u65ad\u8fd9\u4e24\u4e2a\u96c6\u5408\u662f\u5426\u76f8\u7b49\uff0c\u4e0b\u9762\u6211\u4eec\u8fd0\u884c\u4e00\u4e0b\u770b\u770b\u4f1a\u8bbf\u95ee\u51e0\u6b21db\uff1f<\/strong><\/p>\n
\u8fd0\u884c\u8f93\u51fa<\/span><\/h5>\n
01<\/span>:15.312<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n01<\/span>:15.340<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n01<\/span>:15.364<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 3<\/span>\n01<\/span>:15.364<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>)]\n01<\/span>:15.367<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>)]\n01<\/span>:15.367<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - true<\/span>\n<\/code><\/pre>\n
\u4ece\u8f93\u51fa\u4e2d\u53ef\u4ee5\u770b\u51fa\u770b\u5230\uff0csql\u53ea\u8f93\u51fa\u4e86\u4e00\u6b21\uff0c\u8bf4\u660e\u7b2c\u4e00\u6b21\u4f1a\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u7b2c\u4e8c\u6b21\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u7684\uff0c\u6700\u540e\u8f93\u51fa\u4e86\u4e00\u4e2atrue<\/code>\uff0c\u4e5f\u8bf4\u660e\u4e24\u6b21\u8fd4\u56de\u7ed3\u679c\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61\uff0c\u7b2c\u4e8c\u6b21\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\u7684\uff0c\u52a0\u5feb\u4e86\u67e5\u8be2\u7684\u901f\u5ea6\u3002<\/p>\n
\u6e05\u7a7a\u4e00\u7ea7\u7f13\u5b58\u76843\u79cd\u65b9\u5f0f<\/span> <\/span><\/h3>\n
\u540c\u4e00\u4e2aSqlSession\u4e2d\u67e5\u8be2\u540c\u6837\u7684\u6570\u636e\uff0cmybatis\u9ed8\u8ba4\u4f1a\u4ece\u4e00\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6\uff0c\u5982\u679c\u7f13\u5b58\u4e2d\u6ca1\u6709\uff0c\u624d\u4f1a\u8bbf\u95eedb\uff0c\u90a3\u4e48\u6211\u4eec\u5982\u4f55\u53bb\u60c5\u51b5\u4e00\u7ea7\u7f13\u5b58\u5462\uff0c\u5f3a\u5236\u8ba9\u67e5\u8be2\u53bb\u8bbf\u95eedb\u5462\uff1f<\/p>\n
\u8ba9\u4e00\u7ea7\u7f13\u5b58\u5931\u6548\u67093\u79cd\u65b9\u5f0f\uff1a<\/strong><\/p>\n
    \n
  1. \n
    SqlSession\u4e2d\u6267\u884c\u589e\u3001\u5220\u3001\u6539\u64cd\u4f5c\uff0c\u6b64\u65f6sqlsession\u4f1a\u81ea\u52a8\u6e05\u7406\u5176\u5185\u90e8\u7684\u4e00\u7ea7\u7f13\u5b58<\/strong><\/p>\n<\/li>\n
  2. \n
    \u8c03\u7528SqlSession\u4e2d\u7684clearCache\u65b9\u6cd5\u6e05\u7406\u5176\u5185\u90e8\u7684\u4e00\u7ea7\u7f13\u5b58<\/strong><\/p>\n<\/li>\n
  3. \n
    \u8bbe\u7f6eMapper xml\u4e2dselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u503c\u4e3atrue\uff0c\u90a3\u4e48\u6267\u884c\u67e5\u8be2\u7684\u65f6\u5019\u4f1a\u5148\u6e05\u7a7a\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u7136\u540e\u53bbdb\u4e2d\u83b7\u53d6\u6570\u636e<\/strong><\/p>\n<\/li>\n<\/ol>\n
    \u4e0a\u9762\u65b9\u5f0f\u4efb\u4f55\u4e00\u79cd\u90fd\u4f1a\u8ba9\u5f53\u524dSqlSession\u4e2d\u7684\u4ee5\u53ca\u7f13\u5b58\u5931\u6548\uff0c\u8fdb\u800c\u53bbdb\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u5206\u522b\u6f14\u793a\u8fd93\u79cd\u60c5\u51b5\u3002<\/p>\n
    \u65b9\u5f0f1\uff1a\u589e\u5220\u6539\u8ba9\u4e00\u7ea7\u7f13\u5b58\u5931\u6548<\/span><\/h4>\n
    \u5f53\u6267\u884c\u589e\u5220\u6539\u64cd\u65f6\uff0cmybatis\u4f1a\u5c06\u5f53\u524dSqlSession\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\u90fd\u6e05\u9664\u3002<\/p>\n
    \u6848\u4f8b\u4ee3\u7801\uff1a<\/span><\/h5>\n
    com.javacode2018.chat05.demo9.Demo9Test#level1CacheTest2\n\n\/**\n * \u589e\u5220\u6539\u4f7f\u4e00\u7ea7\u7f13\u5b58\u5931\u6548\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level1CacheTest2<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        \/\/\u7b2c\u4e00\u6b21\u67e5\u8be2<\/span>\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n        \/\/\u65b0\u589e\u4e00\u6761\u6570\u636e<\/span>\n        mapper.insert1(UserModel.builder().id(100<\/span>).name(\"\u8def\u4eba\"<\/span>).age(30<\/span>).build());\n        \/\/\u7b2c\u4e8c\u6b21\u67e5\u8be2<\/span>\n        List<UserModel> userModelList2 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList2);\n        log.info(\"{}\"<\/span>, userModelList1 == userModelList2);\n    }\n}\n<\/code><\/pre>\n
    \u4e0a\u9762\u540c\u4e00\u4e2aSqlSession\u4e2d\u6267\u884c\u4e863\u4e2a\u64cd\u4f5c\uff0c\u540c\u6837\u7684\u67e5\u8be2\u6267\u884c\u4e862\u6b21\uff0c2\u6b21\u67e5\u8be2\u4e2d\u95f4\u5939\u4e86\u4e00\u4e2a\u63d2\u5165\u64cd\u4f5c\u3002<\/p>\n
    \u8fd0\u884c\u8f93\u51fa<\/span><\/h5>\n
    21<\/span>:55.097<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n21<\/span>:55.135<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n21<\/span>:55.159<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==<\/span>      Total:<\/span> 3<\/span>\n21:55.159<\/span> [main<\/span>] INFO<\/span>  c.j.chat05.demo9.Demo9Test<\/span> -<\/span> [UserModel<\/span>(id<\/span>=1,<\/span> name<\/span>=\u8def\u4eba\u7532Java,<\/span> age<\/span>=30),<\/span> UserModel<\/span>(id<\/span>=2,<\/span> name<\/span>=\u5f20\u5b66\u53cb,<\/span> age<\/span>=50),<\/span> UserModel<\/span>(id<\/span>=3,<\/span> name<\/span>=\u5218\u5fb7\u534e,<\/span> age<\/span>=50)]<\/span>\n21:55.161<\/span> [main<\/span>] DEBUG<\/span> c.j.c.d.mapper.UserMapper.insert1<\/span> -<\/span> ==><\/span>  Preparing: INSERT INTO t_user (id,name,age) VALUES (?,?,?) \n21:55.162 [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - ==> Parameters: 100(Integer), \u8def\u4eba(String), 30(Integer)\n21:55.165 [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - <==<\/span>    Updates:<\/span> 1<\/span>\n21:55.166<\/span> [main<\/span>] DEBUG<\/span> c.j.c.d.mapper.UserMapper.getList1<\/span> -<\/span> ==><\/span>  Preparing: SELECT id,name,age FROM t_user \n21:55.166 [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n21:55.167 [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==<\/span>      Total:<\/span> 4<\/span>\n21:55.168<\/span> [main<\/span>] INFO<\/span>  c.j.chat05.demo9.Demo9Test<\/span> -<\/span> [UserModel<\/span>(id<\/span>=1,<\/span> name<\/span>=\u8def\u4eba\u7532Java,<\/span> age<\/span>=30),<\/span> UserModel<\/span>(id<\/span>=2,<\/span> name<\/span>=\u5f20\u5b66\u53cb,<\/span> age<\/span>=50),<\/span> UserModel<\/span>(id<\/span>=3,<\/span> name<\/span>=\u5218\u5fb7\u534e,<\/span> age<\/span>=50),<\/span> UserModel<\/span>(id<\/span>=100,<\/span> name<\/span>=\u8def\u4eba,<\/span> age<\/span>=30)]<\/span>\n21:55.168<\/span> [main<\/span>] INFO<\/span>  c.j.chat05.demo9.Demo9Test<\/span> -<\/span> false<\/span>\n<\/span><\/span><\/code><\/pre>\n
    \u4ece\u8f93\u51fa\u4e2d\u53ef\u4ee5\u770b\u51fa2\u6b21\u67e5\u8be2\u90fd\u8bbf\u95ee\u4e86db\uff0c\u5e76\u4e14\u4e24\u6b21\u67e5\u8be2\u7684\u7ed3\u679c\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u4e24\u4e2a\u96c6\u5408\u4e5f\u4e0d\u76f8\u7b49\uff0c\u63d2\u5165\u6570\u636e\u8ba9\u7f13\u5b58\u5931\u6548\u662f\u53ef\u4ee5\u7406\u89e3\u7684\uff0c\u63d2\u5165\u64cd\u4f5c\u53ef\u80fd\u4f1a\u6539\u53d8\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u6240\u4ee5\u5982\u679c\u518d\u4ece\u7f13\u5b58\u4e2d\u53bb\u83b7\u53d6\uff0c\u53ef\u80fd\u83b7\u53d6\u5230\u7684\u6570\u636e\u548cdb\u4e2d\u7684\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\uff0cmybatis\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u5728\u6267\u884c\u63d2\u5165\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u4f1a\u5c06SqlSession\u4e2d\u7684\u4e00\u7ea7\u7f13\u5b58\u6e05\u7a7a\u3002\u5f53\u7136\u5220\u9664\u548c\u4fee\u6539\u4e5f\u540c\u6837\u4f1a\u6539\u53d8db\u4e2d\u7684\u6570\u636e\uff0c\u5982\u679c\u5728\u540c\u4e00\u4e2aSqlSession\u4e2d\u53bb\u6267\u884c\u5220\u9664\u6216\u8005\u4fee\u6539\u6570\u636e\u7684\u65f6\u5019\uff0cmybatis\u4e5f\u4e00\u6837\u4f1a\u6e05\u9664\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u5220\u9664\u548c\u4fee\u6539\u5927\u5bb6\u81ea\u5df1\u53ef\u4ee5\u51992\u4e2a\u4f8b\u5b50\u8bd5\u8bd5\uff0c\u770b\u770b\u662f\u5426\u4e5f\u4f1a\u6e05\u7406\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u3002<\/p>\n
    \u65b9\u5f0f2\uff1aSqlSession.clearCache\u6e05\u7406\u4e00\u7ea7\u7f13\u5b58<\/span><\/h4>\n
    SqlSession.clearCache()\u65b9\u6cd5\u4f1a\u5c06\u5f53\u524dSqlSession\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\u6e05\u9664\u3002<\/p>\n
    \u6848\u4f8b\u4ee3\u7801\uff1a<\/span><\/h5>\n
    com.javacode2018.chat05.demo9.Demo9Test#level1CacheTest3\n\n\/**\n * \u8c03\u7528sqlSession.clearCache()\u6e05\u7406\u4e00\u7ea7\u7f13\u5b58\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level1CacheTest3<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        \/\/\u7b2c\u4e00\u6b21\u67e5\u8be2<\/span>\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n        \/\/\u8c03\u7528clearCache\u65b9\u6cd5\u6e05\u7406\u5f53\u524dSqlSession\u4e2d\u7684\u7f13\u5b58<\/span>\n        sqlSession.clearCache();\n        \/\/\u7b2c\u4e8c\u6b21\u67e5\u8be2<\/span>\n        List<UserModel> userModelList2 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList2);\n        log.info(\"{}\"<\/span>, userModelList1 == userModelList2);\n    }\n}\n<\/code><\/pre>\n
    \u8fd0\u884c\u8f93\u51fa<\/span><\/h5>\n
    31<\/span>:21.937<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n31<\/span>:21.966<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n31<\/span>:21.985<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n31<\/span>:21.985<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n31<\/span>:21.988<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n31<\/span>:21.988<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n31<\/span>:21.989<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n31<\/span>:21.989<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n31<\/span>:21.990<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - false<\/span>\n<\/code><\/pre>\n
    \u4ece\u8f93\u51fa\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c2\u6b21\u540c\u6837\u7684\u67e5\u8be2\u90fd\u8bbf\u95ee\u4e86db\u3002<\/p>\n
    \u65b9\u5f0f3\uff1aSelect\u5143\u7d20\u7684flushCache\u7f6e\u4e3atrue<\/span><\/h4>\n
    \u5c06Mapper xml\u4e2dselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue\u7684\u65f6\u5019\uff0c\u6bcf\u6b21\u6267\u884c\u8fd9\u4e2aselect\u5143\u7d20\u5bf9\u5e94\u7684\u67e5\u8be2\u4e4b\u524d\uff0cmybatis\u4f1a\u5c06\u5f53\u524dSqlSession\u4e2d\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\u90fd\u6e05\u9664\u3002<\/p>\n
    \u6848\u4f8b\u4ee3\u7801<\/span><\/h5>\n
    \u65b0\u589e\u4e00\u4e2aselect\u5143\u7d20\u7684\u67e5\u8be2\uff0c\u5c06flushCache\u5143\u7d20\u7f6e\u4e3atrue\uff0c\u6ce8\u610f\uff1aselect\u5143\u7d20\u8fd9\u4e2a\u5c5e\u6027\u7684\u9ed8\u8ba4\u503c\u662ffalse\u3002<\/p>\n
    <select<\/span> id<\/span>=\"getList2\"<\/span> flushCache<\/span>=\"true\"<\/span> resultType<\/span>=\"com.javacode2018.chat05.demo9.model.UserModel\"<\/span> parameterType<\/span>=\"map\"<\/span>><\/span>\n    SELECT id,name,age FROM t_user\n    <where<\/span>><\/span>\n        <if<\/span> test<\/span>=\"id!=null\"<\/span>><\/span>\n            AND id = #{id}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"name!=null and name.toString()!=''\"<\/span>><\/span>\n            AND name = #{name}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"age!=null\"<\/span>><\/span>\n            AND age = #{age}\n        <\/if<\/span>><\/span>\n    <\/where<\/span>><\/span>\n<\/select<\/span>><\/span>\n<\/code><\/pre>\n
    \u5bf9\u5e94\u6d4b\u8bd5\u7528\u4f8b<\/span><\/h5>\n
    com.javacode2018.chat05.demo9.Demo9Test#level1CacheTest4\n\n\/**\n * \u5c06Mapper xml\u4e2dselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue\u7684\u65f6\u5019\uff0c\u6bcf\u6b21\u6267\u884c\u8fd9\u4e2aselect\u5143\u7d20\u5bf9\u5e94\u7684\u67e5\u8be2\u4e4b\u524d\uff0cmybatis\u4f1a\u5c06\u5f53\u524dSqlSession\u4e2d\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\u90fd\u6e05\u9664\u3002\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level1CacheTest4<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        \/\/\u67e5\u8be21\uff1agetList1<\/span>\n        log.info(\"\u67e5\u8be21 start\"<\/span>);\n        log.info(\"\u67e5\u8be21\uff1agetList1->{}\"<\/span>, mapper.getList1(null<\/span>));\n        \/\/\u67e5\u8be22\uff1agetList1<\/span>\n        log.info(\"\u67e5\u8be22 start\"<\/span>);\n        log.info(\"\u67e5\u8be22\uff1agetList1->{}\"<\/span>, mapper.getList1(null<\/span>));\n        \/\/\u67e5\u8be23\uff1agetList2<\/span>\n        log.info(\"\u67e5\u8be23 start\"<\/span>);\n        log.info(\"\u67e5\u8be23\uff1agetList2->{}\"<\/span>, mapper.getList2(null<\/span>));\n        \/\/\u67e5\u8be24\uff1agetList2<\/span>\n        log.info(\"\u67e5\u8be24 start\"<\/span>);\n        log.info(\"\u67e5\u8be24\uff1agetList2->{}\"<\/span>, mapper.getList2(null<\/span>));\n        \/\/\u67e5\u8be25\uff1agetList1<\/span>\n        log.info(\"\u67e5\u8be25 start\"<\/span>);\n        log.info(\"\u67e5\u8be25\uff1agetList1->{}\"<\/span>, mapper.getList1(null<\/span>));\n    }\n}\n<\/code><\/pre>\n
    \u6ce8\u610f\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u4ee3\u7801\u4e2d\u67095\u6b21\u67e5\u8be2\uff0c\u7b2c1\u6b21\u3001\u7b2c2\u6b21\u3001\u7b2c5\u6b21\u67e5\u8be2\u8c03\u7528\u7684\u90fd\u662fgetList1\uff0c\u8fd9\u4e2a\u67e5\u8be2\u5bf9\u5e94\u7684mapper xml\u4e2d\u7684select\u5143\u7d20\u7684flushCache\u5c5e\u6027\u6ca1\u6709\u8bbe\u7f6e\uff0c\u9ed8\u8ba4\u662ffalse\uff1b\u800c\u7b2c3\u6b21\u548c\u7b2c4\u6b21\u67e5\u8be2\u8c03\u7528\u7684\u662fgetList2\uff0cgetList2\u8fd9\u4e2a\u67e5\u8be2\u5bf9\u5e94\u7684mapper xml\u4e2d\u7684select(id=getList2)\uff0c\u5b83\u7684flushCache\u5c5e\u6027\u8bbe\u7f6e\u7684\u662ftrue\uff0c\u8bf4\u660e\u7b2c3\u548c\u7b2c4\u6b21\u67e5\u8be2\u4f1a\u6e05\u7a7a\u5f53\u524d\u4e00\u7ea7\u7f13\u5b58\u4e2d\u6240\u6709\u6570\u636e\u3002<\/p>\n
    \u6700\u7ec8\u6548\u679c\u5e94\u8be5\u662f\u67e5\u8be21\u8bbf\u95eedb\u62ff\u53bb\u6570\u636e\uff0c\u7136\u540e\u5c06\u5176\u4e22\u5230\u4e00\u7ea7\u7f13\u5b58\u4e2d\uff0c\u67e5\u8be22\u4f1a\u76f4\u63a5\u4ece\u4e00\u7ea7\u7f13\u5b58\u4e2d\u62ff\u5230\u6570\u636e\uff0c\u800c\u67e5\u8be23\u8d70\u7684\u662fgetList2\uff0c\u53d1\u73b0flushCache\u4e3atrue\uff0c\u4f1a\u5148\u6e05\u7a7a\u4e00\u7ea7\u7f13\u5b58\u4e2d\u6240\u6709\u6570\u636e\uff0c\u4e5f\u5c31\u662f\u6b64\u65f6\u67e5\u8be21\u653e\u5165\u7f13\u5b58\u7684\u6570\u636e\u4f1a\u88ab\u6e05\u7406\u6389\uff0c\u7136\u540e\u67e5\u8be23\u4f1a\u8bbf\u95eedb\u83b7\u53d6\u6570\u636e\uff0c\u7136\u540e\u4e22\u5230\u7f13\u5b58\u4e2d\uff1b\u800c\u67e5\u8be24\u8d70\u7684\u662fgetList2\uff0c\u53d1\u73b0flushCache\u4e3atrue\uff0c\u4f1a\u5148\u6e05\u7a7a\u7f13\u5b58\uff0c\u6240\u4ee53\u653e\u5165\u4e00\u7ea7\u7f13\u5b58\u7684\u6570\u636e\u4f1a\u88ab\u6e05\u7a7a\uff0c\u7136\u540e\u5bfc\u81f4\u67e5\u8be24\u4e5f\u4f1a\u8bbf\u95eedb\uff0c\u67e5\u8be25\u53bb\u4e00\u7ea7\u7f13\u5b58\u4e2d\u67e5\u8be2\u6570\u636e\uff0c\u56e0\u4e3a\u67e5\u8be21\u548c2\u653e\u5165\u7f13\u5b58\u7684\u6570\u636e\u90fd\u88ab\u67e5\u8be23\u6e05\u7a7a\u4e86\uff0c\u6240\u4ee5\u5bfc\u81f4\u67e5\u8be25\u53d1\u73b0\u4e00\u7ea7\u7f13\u5b58\u4e2d\u6ca1\u6709\u6570\u636e\uff0c\u4e5f\u4f1a\u8bbf\u95eedb\u53bb\u83b7\u53d6\u6570\u636e\u3002<\/strong><\/p>\n
    \u6211\u4eec\u6765\u8fd0\u884c\u4e00\u4e0b\u770b\u770b\u770b\u770b\u662f\u5426\u548c\u6211\u4eec\u5206\u6790\u7684\u4e00\u81f4\u3002<\/p>\n
    \u8fd0\u884c\u8f93\u51fa<\/span><\/h5>\n
    20<\/span>:10.872<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be21<\/span> start\n20<\/span>:11.164<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n20<\/span>:11.195<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n20<\/span>:11.216<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n20<\/span>:11.216<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be21<\/span>\uff1agetList1->[UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n20<\/span>:11.218<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be22<\/span> start\n20<\/span>:11.218<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be22<\/span>\uff1agetList1->[UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n20<\/span>:11.219<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be23<\/span> start\n20<\/span>:11.219<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==>  Preparing: SELECT id,name,age FROM t_user \n20<\/span>:11.219<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==> Parameters: \n20<\/span>:11.222<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - <==      Total: 4<\/span>\n20<\/span>:11.222<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be23<\/span>\uff1agetList2->[UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n20<\/span>:11.222<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be24<\/span> start\n20<\/span>:11.223<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==>  Preparing: SELECT id,name,age FROM t_user \n20<\/span>:11.223<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==> Parameters: \n20<\/span>:11.225<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - <==      Total: 4<\/span>\n20<\/span>:11.225<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be24<\/span>\uff1agetList2->[UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n20<\/span>:11.225<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be25<\/span> start\n20<\/span>:11.225<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n20<\/span>:11.225<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n20<\/span>:11.230<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n20<\/span>:11.230<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - \u67e5\u8be25<\/span>\uff1agetList1->[UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n<\/code><\/pre>\n
    \u5927\u5bb6\u8ba4\u771f\u770b\u4e00\u4e0b\u4e0a\u9762\u7684\u8f93\u51fa\uff0c\u67e5\u8be21\/3\/4\/5\u8bbf\u95ee\u4e86db\uff0c\u67e5\u8be22\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u7684\uff0c\u548c\u6211\u4eec\u4e0a\u9762\u5206\u6790\u7684\u8fc7\u7a0b\u4e00\u81f4\u3002<\/p>\n
    \u4e00\u7ea7\u7f13\u5b58\u4f7f\u7528\u603b\u7ed3<\/span> <\/span><\/h3>\n
      \n
    1. \n
      \u4e00\u7ea7\u7f13\u5b58\u662fSqlSession\u7ea7\u522b\u7684\uff0c\u6bcf\u4e2a\u4ebaSqlSession\u6709\u81ea\u5df1\u7684\u4e00\u7ea7\u7f13\u5b58\uff0c\u4e0d\u540c\u7684SqlSession\u4e4b\u95f4\u4e00\u7ea7\u7f13\u5b58\u662f\u76f8\u4e92\u9694\u79bb\u7684<\/strong><\/p>\n<\/li>\n
    2. \n
      mybatis\u4e2d\u4e00\u7ea7\u7f13\u5b58\u9ed8\u8ba4\u662f\u81ea\u52a8\u5f00\u542f\u7684<\/strong><\/p>\n<\/li>\n
    3. \n
      \u5f53\u5728\u540c\u4e00\u4e2aSqlSession\u4e2d\u6267\u884c\u540c\u6837\u7684\u67e5\u8be2\u7684\u65f6\u5019\uff0c\u4f1a\u5148\u4ece\u4e00\u7ea7\u7f13\u5b58\u4e2d\u67e5\u627e\uff0c\u5982\u679c\u627e\u5230\u4e86\u76f4\u63a5\u8fd4\u56de\uff0c\u5982\u679c\u6ca1\u6709\u627e\u5230\u4f1a\u53bb\u8bbf\u95eedb\uff0c\u7136\u540e\u5c06db\u8fd4\u56de\u7684\u6570\u636e\u4e22\u5230\u4e00\u7ea7\u7f13\u5b58\u4e2d\uff0c\u4e0b\u6b21\u67e5\u8be2\u7684\u65f6\u5019\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6<\/strong><\/p>\n<\/li>\n
    4. \n
      \u4e00\u7ea7\u7f13\u5b58\u6e05\u7a7a\u76843\u79cd\u65b9\u5f0f\uff081\uff1aSqlSession\u4e2d\u6267\u884c\u589e\u5220\u6539\u4f1a\u4f7f\u4e00\u7ea7\u7f13\u5b58\u5931\u6548\uff1b2\uff1a\u8c03\u7528SqlSession.clearCache\u65b9\u6cd5\u4f1a\u4f7f\u4e00\u7ea7\u7f13\u5b58\u5931\u6548\uff1b3\uff1aMapper xml\u4e2d\u7684select\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue\uff0c\u90a3\u4e48\u6267\u884c\u8fd9\u4e2a\u67e5\u8be2\u4f1a\u4f7f\u4e00\u7ea7\u7f13\u5b58\u5931\u6548\uff09<\/strong><\/p>\n<\/li>\n<\/ol>\n
      \u4e8c\u7ea7\u7f13\u5b58<\/span> <\/span><\/h3>\n
      \u4e8c\u7ea7\u7f13\u5b58\u7684\u4f7f\u7528<\/span><\/h4>\n
      \u4e00\u7ea7\u7f13\u5b58\u4f7f\u7528\u4e0a\u5b58\u5728\u5c40\u9650\u6027\uff0c\u5fc5\u987b\u8981\u5728\u540c\u4e00\u4e2aSqlSession\u4e2d\u6267\u884c\u540c\u6837\u7684\u67e5\u8be2\uff0c\u4e00\u7ea7\u7f13\u5b58\u624d\u80fd\u63d0\u5347\u67e5\u8be2\u901f\u5ea6\uff0c\u5982\u679c\u60f3\u5728\u4e0d\u540c\u7684SqlSession\u4e4b\u95f4\u4f7f\u7528\u7f13\u5b58\u6765\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\uff0c\u6b64\u65f6\u6211\u4eec\u9700\u8981\u7528\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e86\u3002<\/p>\n
      \u4e8c\u7ea7\u7f13\u5b58\u662fmapper\u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u6bcf\u4e2amapper xml\u6709\u4e2anamespace\uff0c\u4e8c\u7ea7\u7f13\u5b58\u548cnamespace\u7ed1\u5b9a\u7684\uff0c\u6bcf\u4e2anamespace\u5173\u8054\u4e00\u4e2a\u4e8c\u7ea7\u7f13\u5b58\uff0c\u591a\u4e2aSqlSession\u53ef\u4ee5\u5171\u7528\u4e8c\u7ea7\u7f13\u5b58\uff0c\u4e8c\u7ea7\u7f13\u5b58\u662f\u8de8SqlSession\u7684\u3002<\/p>\n
      \u4e8c\u7ea7\u7f13\u5b58\u9ed8\u8ba4\u662f\u6ca1\u6709\u5f00\u542f\u7684\uff0c\u9700\u8981\u6211\u4eec\u5728mybatis\u5168\u5c40\u914d\u7f6e\u6587\u4ef6\u4e2d\u8fdb\u884c\u5f00\u542f\uff1a<\/p>\n
      <settings<\/span>><\/span>\n    <!-- \u5f00\u542f\u4e8c\u7ea7\u7f13\u5b58 --><\/span>\n    <setting<\/span> name<\/span>=\"cacheEnabled\"<\/span> value<\/span>=\"true\"<\/span>\/><\/span>\n<\/settings<\/span>><\/span>\n<\/code><\/pre>\n
      \u4e0a\u9762\u914d\u7f6e\u597d\u4e86\u4ee5\u540e\uff0c\u8fd8\u9700\u8981\u5728\u5bf9\u5e94\u7684mapper xml\u52a0\u4e0a\u4e0b\u9762\u914d\u7f6e\uff0c\u8868\u793a\u8fd9\u4e2amapper\u4e2d\u7684\u67e5\u8be2\u5f00\u542f\u4e8c\u7ea7\u7f13\u5b58\uff1a<\/p>\n
      <cache<\/span>\/><\/span>\n<\/code><\/pre>\n
      \u914d\u7f6e\u5c31\u8fd9\u4e48\u7b80\u5355\u3002<\/p>\n
      \u4e00\u4e8c\u7ea7\u7f13\u5b58\u5171\u5b58\u65f6\u67e5\u8be2\u539f\u7406<\/span><\/h4>\n
      \u4e00\u4e8c\u7ea7\u7f13\u5b58\u5982\u679c\u90fd\u5f00\u542f\u7684\u60c5\u51b5\u4e0b\uff0c\u6570\u636e\u67e5\u8be2\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n
        \n
      1. \n
        \u5f53\u53d1\u8d77\u4e00\u4e2a\u67e5\u8be2\u7684\u65f6\u5019\uff0cmybatis\u4f1a\u5148\u8bbf\u95ee\u8fd9\u4e2anamespace\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\uff0c\u5982\u679c\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u6709\u6570\u636e\u5219\u76f4\u63a5\u8fd4\u56de\uff0c\u5426\u5219\u7ee7\u7eed\u5411\u4e0b<\/strong><\/p>\n<\/li>\n
      2. \n
        \u67e5\u8be2\u4e00\u7ea7\u7f13\u5b58\u4e2d\u662f\u5426\u6709\u5bf9\u5e94\u7684\u6570\u636e\uff0c\u5982\u679c\u6709\u5219\u76f4\u63a5\u8fd4\u56de\uff0c\u5426\u5219\u7ee7\u7eed\u5411\u4e0b<\/strong><\/p>\n<\/li>\n
      3. \n
        \u8bbf\u95eedb\u83b7\u53d6\u9700\u8981\u7684\u6570\u636e\uff0c\u7136\u540e\u653e\u5728\u5f53\u524dSqlSession\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\u4e2d\uff0c\u5e76\u4e14\u5728\u672c\u5730\u5185\u5b58\u4e2d\u7684\u53e6\u5916\u4e00\u4e2a\u5730\u65b9\u5b58\u50a8\u4e00\u4efd\uff08\u8fd9\u4e2a\u5730\u65b9\u6211\u4eec\u5c31\u53ebTransactionalCache\uff09<\/strong><\/p>\n<\/li>\n
      4. \n
        \u5f53SqlSession\u5173\u95ed\u7684\u65f6\u5019\uff0c\u4e5f\u5c31\u662f\u8c03\u7528SqlSession\u7684close\u65b9\u6cd5\u7684\u65f6\u5019\uff0c\u6b64\u65f6\u4f1a\u5c06TransactionalCache\u4e2d\u7684\u6570\u636e\u653e\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d\uff0c\u5e76\u4e14\u4f1a\u6e05\u7a7a\u5f53\u524dSqlSession\u4e00\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u3002<\/strong><\/p>\n<\/li>\n<\/ol>\n
        \u4e8c\u7ea7\u7f13\u5b58\u6848\u4f8b<\/span><\/h4>\n
        mybatis\u5168\u5c40\u914d\u7f6e\u6587\u4ef6\u5f00\u542f\u4e8c\u7ea7\u7f13\u5b58\u914d\u7f6e<\/span><\/h5>\n
        <settings<\/span>><\/span>\n    <!-- \u5f00\u542f\u4e8c\u7ea7\u7f13\u5b58 --><\/span>\n    <setting<\/span> name<\/span>=\"cacheEnabled\"<\/span> value<\/span>=\"true\"<\/span>\/><\/span>\n<\/settings<\/span>><\/span>\n<\/code><\/pre>\n
        mapper xml\u4e2d\u4f7f\u7528cache\u5143\u7d20\u5f00\u542f\u4e8c\u7ea7\u7f13\u5b58<\/span><\/h5>\n
        <!-- \u542f\u7528\u4e8c\u7ea7\u7f13\u5b58 --><\/span>\n<cache<\/span>\/><\/span>\n\n<select<\/span> id<\/span>=\"getList1\"<\/span> resultType<\/span>=\"com.javacode2018.chat05.demo9.model.UserModel\"<\/span> parameterType<\/span>=\"map\"<\/span>><\/span>\n    SELECT id,name,age FROM t_user\n    <where<\/span>><\/span>\n        <if<\/span> test<\/span>=\"id!=null\"<\/span>><\/span>\n            AND id = #{id}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"name!=null and name.toString()!=''\"<\/span>><\/span>\n            AND name = #{name}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"age!=null\"<\/span>><\/span>\n            AND age = #{age}\n        <\/if<\/span>><\/span>\n    <\/where<\/span>><\/span>\n<\/select<\/span>><\/span>\n<\/code><\/pre>\n
        \u6d4b\u8bd5\u7528\u4f8b<\/span><\/h5>\n
        com.javacode2018.chat05.demo9.Demo9Test#level2CacheTest1\n\n\/**\n * \u4e8c\u7ea7\u7f13\u5b58\u6d4b\u8bd5\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level2CacheTest1<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config1.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    for<\/span> (int<\/span> i = 0<\/span>; i < 2<\/span>; i++) {\n        try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n            UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n            List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n            log.info(\"{}\"<\/span>, userModelList1);\n        }\n    }\n}\n<\/code><\/pre>\n
        \u4e0a\u9762\u6267\u884c\u4e862\u6b21\u67e5\u8be2\uff0c\u6bcf\u6b21\u67e5\u8be2\u90fd\u662f\u65b0\u7684SqlSession\uff0c\u8fd0\u884c\u4e00\u4e0b\u770b\u770b\u6548\u679c\u3002<\/p>\n
        \u6267\u884c\u8f93\u51fa<\/span><\/h5>\n
        34<\/span>:36.574<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.0<\/span>\n34<\/span>:36.831<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n34<\/span>:36.864<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n34<\/span>:36.883<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n34<\/span>:36.883<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n34<\/span>:36.894<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.5<\/span>\n34<\/span>:36.895<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n<\/code><\/pre>\n
        \u6ce8\u610f\u4e0a\u9762\u7b2c\u4e00\u884c\u65e5\u5fd7\u8f93\u51fa\uff1a<\/p>\n
        Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.0<\/span>\n<\/code><\/pre>\n
        \u5bf9\u8fd9\u884c\u505a\u4e00\u4e2a\u89e3\u91ca\uff1acom.javacode2018.chat05.demo9.mapper.UserMapper<\/code>\u662f\u4e0a\u9762\u67e5\u8be2\u8bbf\u95ee\u7684mapper xml\u7684namesapce\u7684\u503c\uff0c\u53bb\u8fd9\u4e2anamespace\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u53bb\u67e5\u8be2\u6570\u636e\uff0c\u6ca1\u6709\u67e5\u8be2\u5230\uff0c\u8f93\u51fa\u4e2d\u76840.0\u8868\u793a\u547d\u4e2d\u7387\uff0c\u8fd9\u6b21\u6ca1\u6709\u547d\u4e2d\uff0c\u6240\u4ee5\u547d\u4e2d\u7387\u4e3a0<\/p>\n
        \u7136\u540e\u5c31\u53bbdb\u4e2d\u8bbf\u95ee\u6570\u636e\u4e86\uff0c\u4f1a\u5c06db\u4e2d\u8fd4\u56de\u7684\u6570\u636e\u653e\u5728\u4e00\u7ea7\u7f13\u5b58\u4e2d\uff0c\u7b2c\u4e00\u6b21\u8fd0\u884c\u5b8c\u6bd5\u4e4b\u540e\u4f1a\u81ea\u52a8\u8c03\u7528SqlSession\u7684close\u65b9\u6cd5\uff0c\u7136\u540edb\u4e2d\u8fd4\u56de\u7684\u6570\u636e\u4f1a\u88ab\u4e22\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d\uff0c\u7b2c\u4e8c\u6b21\u67e5\u8be2\u7684\u65f6\u5019\u5c31\u76f4\u63a5\u4ece\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6\u5230\u6570\u636e\u8fd4\u56de\u4e86\uff0c\u6240\u4ee5\u7b2c\u4e8c\u6b21\u67e5\u8be2\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n
        34<\/span>:36.894<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.5<\/span>\n34<\/span>:36.895<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n<\/code><\/pre>\n
        2\u6b21\u67e5\u8be2\u90fd\u53bb\u8bbf\u95ee\u4e86\u4e8c\u7ea7\u7f13\u5b58\uff0c\u7b2c\u4e8c\u6b21\u547d\u4e2d\u4e86\uff0c\u547d\u4e2d\u7387\u4e3a1\/2=0.5<\/p>\n
        \u6e05\u7a7a\u6216\u8005\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\u76843\u79cd\u65b9\u5f0f<\/span> <\/span><\/h3>\n
        \u5f53\u4e8c\u7ea7\u7f13\u5b58\u5f00\u542f\u7684\u65f6\u5019\uff0c\u5728\u67d0\u4e2amapper xml\u4e2d\u6dfb\u52a0cache\u5143\u7d20\u4e4b\u540e\uff0c\u8fd9\u4e2amapper xml\u4e2d\u6240\u6709\u7684\u67e5\u8be2\u90fd\u9ed8\u8ba4\u5f00\u542f\u4e86\u4e8c\u7ea7\u7f13\u5b58\uff0c\u90a3\u4e48\u6211\u4eec\u5982\u4f55\u6e05\u7a7a\u6216\u8005\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\u5462\uff1f3\u79cd\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n
          \n
        1. \n
          \u5bf9\u5e94\u7684mapper\u4e2d\u6267\u884c\u589e\u5220\u6539\u67e5\u4f1a\u6e05\u7a7a\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u6570\u636e<\/strong><\/p>\n<\/li>\n
        2. \n
          select\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue\uff0c\u4f1a\u5148\u6e05\u7a7a\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u7136\u540e\u518d\u53bbdb\u4e2d\u67e5\u8be2\u6570\u636e\uff0c\u7136\u540e\u5c06\u6570\u636e\u518d\u653e\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d<\/strong><\/p>\n<\/li>\n
        3. \n
          select\u5143\u7d20\u7684useCache\u5c5e\u6027\u7f6e\u4e3atrue\uff0c\u53ef\u4ee5\u4f7f\u8fd9\u4e2a\u67e5\u8be2\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\uff0c\u7136\u540e\u53bb\u67e5\u8be2\u6570\u636e<\/strong><\/p>\n<\/li>\n<\/ol>\n
          \u4e0b\u9762\u6211\u4eec\u6765\u6f14\u793a\u4e00\u4e0b\u6bcf\u79cd\u65b9\u5f0f\u5bf9\u5e94\u7684\u6548\u679c\u3002<\/p>\n
          \u65b9\u5f0f1\uff1a\u589e\u5220\u6539\u4f1a\u6e05\u9664\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e<\/span><\/h4>\n
          \u4e0b\u9762\u6211\u4eec\u4e3b\u8981\u6f14\u793a\u4e00\u4e0b\u65b0\u589e\u5bf9\u4e8c\u7ea7\u7f13\u5b58\u7684\u5f71\u54cd\u3002<\/p>\n
          \u6848\u4f8b\u4ee3\u7801<\/span><\/h5>\n
          com.javacode2018.chat05.demo9.Demo9Test#level2CacheTest2\n\n\/**\n * \u589e\u5220\u6539\u4f1a\u6e05\u9664\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level2CacheTest2<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config1.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n    }\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        \/\/\u65b0\u589e\u4e00\u6761\u6570\u636e<\/span>\n        mapper.insert1(UserModel.builder().id(Integer.valueOf(System.nanoTime() % 100000<\/span> + \"\"<\/span>)).name(\"\u8def\u4eba\"<\/span>).age(30<\/span>).build());\n    }\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n    }\n}\n<\/code><\/pre>\n
          \u4e0a\u9762\u4f7f\u7528\u4e863\u4e2a\u4e0d\u540c\u7684SqlSession\uff0c\u7b2c\u4e00\u6b21\u548c\u7b2c\u4e09\u6b21\u90fd\u8c03\u7528\u4e86getList1\u6267\u884c\u67e5\u8be2\uff0c\u4e2d\u95f4\u6267\u884c\u4e86\u4e00\u4e2a\u63d2\u5165\u64cd\u4f5c\uff0cmybatis\u6267\u884c\u63d2\u5165\u7684\u65f6\u5019\uff0c\u4f1a\u5148\u6e05\u9664\u5f53\u524dnamespace\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u6240\u4ee5\u4e0a\u97622\u6b21\u67e5\u8be2\u6700\u7ec8\u90fd\u4f1a\u8bbf\u95eedb\uff0c\u6765\u8fd0\u884c\u4e00\u4e0b\u770b\u770b\u6548\u679c\u3002<\/p>\n
          \u8fd0\u884c\u8f93\u51fa<\/span><\/h5>\n
          23<\/span>:00.620<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.0<\/span>\n23<\/span>:00.900<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n23<\/span>:00.924<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n23<\/span>:00.948<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 3<\/span>\n23<\/span>:00.948<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>)]\n23<\/span>:00.951<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - ==>  Preparing: INSERT INTO t_user<\/span> (id,name,age)<\/span> VALUES<\/span> (?,?,?)<\/span> \n23:00.953 [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - <\/span>==> Parameters: 79600<\/span>(Integer), \u8def\u4eba(String), 30<\/span>(Integer)\n23<\/span>:00.955<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - <==    Updates: 1<\/span>\n23<\/span>:00.959<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.0<\/span>\n23<\/span>:00.959<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n23<\/span>:00.959<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n23<\/span>:00.961<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n23<\/span>:00.961<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=79600<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n23<\/span>:00.961<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - ==>  Preparing: INSERT INTO t_user<\/span> (id,name,age)<\/span> VALUES<\/span> (?,?,?)<\/span> \n23:00.962 [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - <\/span>==> Parameters: 94100<\/span>(Integer), \u8def\u4eba(String), 30<\/span>(Integer)\n23<\/span>:00.967<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.insert1 - <==    Updates: 1<\/span>\n<\/code><\/pre>\n
          \u4ece\u8f93\u51fa\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c2\u6b21\u67e5\u8be2\u90fd\u8bbf\u95ee\u4e86db\u3002\u4e0a\u9762\u6f14\u793a\u7684\u662f\u63d2\u5165\u4f1a\u6e05\u7a7a\u4e8c\u7ea7\u7f13\u5b58\u7684\u6570\u636e\uff0c\u540c\u6837\u5220\u9664\u548c\u4fee\u6539\u4e5f\u4f1a\u5148\u6e05\u9664\u5f53\u524dnamespace\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\u3002<\/p>\n
          \u65b9\u5f0f2\uff1aselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue<\/span><\/h4>\n
          \u5f53\u5c06mapper xml\u4e2dselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue\uff0c\u4f1a\u5148\u6e05\u7a7a\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u7136\u540e\u518d\u53bbdb\u4e2d\u67e5\u8be2\u6570\u636e\uff0c\u7136\u540e\u5c06\u6570\u636e\u518d\u653e\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u3002<\/p>\n
          \u4ee3\u7801<\/span><\/h5>\n
          <select<\/span> id<\/span>=\"getList2\"<\/span> flushCache<\/span>=\"true\"<\/span> resultType<\/span>=\"com.javacode2018.chat05.demo9.model.UserModel\"<\/span>\n        parameterType<\/span>=\"map\"<\/span>><\/span>\n    SELECT id,name,age FROM t_user\n    <where<\/span>><\/span>\n        <if<\/span> test<\/span>=\"id!=null\"<\/span>><\/span>\n            AND id = #{id}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"name!=null and name.toString()!=''\"<\/span>><\/span>\n            AND name = #{name}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"age!=null\"<\/span>><\/span>\n            AND age = #{age}\n        <\/if<\/span>><\/span>\n    <\/where<\/span>><\/span>\n<\/select<\/span>><\/span>\n<\/code><\/pre>\n
          \u6d4b\u8bd5\u7528\u4f8b<\/span><\/h5>\n
          com.javacode2018.chat05.demo9.Demo9Test#level2CacheTest3\n\n\/**\n * \u5f53\u5c06mapper xml\u4e2dselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3atrue\uff0c\u4f1a\u5148\u6e05\u7a7a\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u7136\u540e\u518d\u53bbdb\u4e2d\u67e5\u8be2\u6570\u636e\uff0c\u7136\u540e\u5c06\u6570\u636e\u518d\u653e\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level2CacheTest3<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config1.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    \/\/\u5148\u67e5\u8be22\u6b21getList1,getList1\u7b2c\u4e8c\u6b21\u4f1a\u4ece\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u62ff\u5230\u6570\u636e<\/span>\n    log.info(\"getList1\u67e5\u8be2\"<\/span>);\n    for<\/span> (int<\/span> i = 0<\/span>; i < 2<\/span>; i++) {\n        try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n            UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n            List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n            log.info(\"{}\"<\/span>, userModelList1);\n        }\n    }\n    \/\/getList2\u7684flushCache\u4e3atrue\uff0c\u6240\u4ee5\u67e5\u8be2\u4e4b\u524d\u4f1a\u5148\u5c06\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\u6e05\u7a7a\uff0c\u6240\u4ee5\u4e8c\u6b21\u90fd\u4f1a\u8bbf\u95eedb<\/span>\n    log.info(\"getList2\u67e5\u8be2\"<\/span>);\n    for<\/span> (int<\/span> i = 0<\/span>; i < 2<\/span>; i++) {\n        try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n            UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n            List<UserModel> userModelList1 = mapper.getList2(null<\/span>);\n            log.info(\"{}\"<\/span>, userModelList1);\n        }\n    }\n\n    \/\/\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u6ca1\u6709getList1\u9700\u8981\u67e5\u627e\u7684\u6570\u636e\u4e86\uff0c\u6240\u4ee5\u8fd9\u6b21\u8bbf\u95eegetList1\u4f1a\u53bb\u8bbf\u95eedb<\/span>\n    log.info(\"getList1\u67e5\u8be2\"<\/span>);\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n    }\n}\n<\/code><\/pre>\n
          \u8fd0\u884c\u8f93\u51fa<\/span><\/h5>\n
          02<\/span>:51.560<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - getList1\u67e5\u8be2\n02<\/span>:51.842<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n02<\/span>:51.871<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n02<\/span>:51.891<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n02<\/span>:51.892<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n02<\/span>:51.905<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.5<\/span>\n02<\/span>:51.906<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n02<\/span>:51.906<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - getList2\u67e5\u8be2\n02<\/span>:51.906<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.3333333333333333<\/span>\n02<\/span>:51.907<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==>  Preparing: SELECT id,name,age FROM t_user \n02<\/span>:51.907<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==> Parameters: \n02<\/span>:51.909<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - <==      Total: 4<\/span>\n02<\/span>:51.909<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n02<\/span>:51.910<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.5<\/span>\n02<\/span>:51.913<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==>  Preparing: SELECT id,name,age FROM t_user \n02<\/span>:51.913<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - ==> Parameters: \n02<\/span>:51.914<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList2 - <==      Total: 4<\/span>\n02<\/span>:51.914<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n02<\/span>:51.915<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - getList1\u67e5\u8be2\n02<\/span>:51.915<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.4<\/span>\n02<\/span>:51.915<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n02<\/span>:51.915<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n02<\/span>:51.917<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n02<\/span>:51.917<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n<\/code><\/pre>\n
          \u7b2c\u4e00\u6b21\u67e5\u8be2\u8bbf\u95eedb\uff0c\u7b2c\u4e8c\u6b21\u67e5\u8be2\u4ece\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6\u4e86\u6570\u636e\uff0c\u7b2c3\u548c\u7b2c4\u67e5\u8be2\u8bbf\u95ee\u7684\u662fgetList2\uff0c\u8fd9\u4e2a\u67e5\u8be2\u4f1a\u6e05\u7a7a\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u7684\u6570\u636e\uff0c\u76f4\u63a5\u53bbdb\u4e2d\u67e5\u8be2\uff0c\u67e5\u8be24\u6267\u884c\u5b8c\u6bd5\u4e4b\u540e\uff0c\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u53ea\u6709\u7b2c\u56db\u6b21\u67e5\u8be2\u7684\u6570\u636e\uff0c\u7b2c5\u6b21\u67e5\u8be2\u53bbgetList1\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u6b64\u65f6\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u6ca1\u6709\uff0c\u6240\u4ee5\u76f4\u63a5\u53bbdb\u4e2d\u83b7\u53d6\u4e86\u3002<\/p>\n
          \u65b9\u5f0f3\uff1aselect\u5143\u7d20\u7684useCache\u7f6e\u4e3afalse\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\uff0c\u4f46\u662f\u4e0d\u4f1a\u60c5\u51b5\u4e8c\u7ea7\u7f13\u5b58\u6570\u636e<\/span><\/h4>\n
          \u65b0\u589e\u4e00\u4e2aselect3\u67e5\u8be2\uff0c\u5c06useCache\u7f6e\u4e3afalse\uff0c\u5982\u4e0b\uff1a<\/p>\n
          <select<\/span> id<\/span>=\"getList3\"<\/span> useCache<\/span>=\"false\"<\/span> resultType<\/span>=\"com.javacode2018.chat05.demo9.model.UserModel\"<\/span>\n        parameterType<\/span>=\"map\"<\/span>><\/span>\n    SELECT id,name,age FROM t_user\n    <where<\/span>><\/span>\n        <if<\/span> test<\/span>=\"id!=null\"<\/span>><\/span>\n            AND id = #{id}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"name!=null and name.toString()!=''\"<\/span>><\/span>\n            AND name = #{name}\n        <\/if<\/span>><\/span>\n        <if<\/span> test<\/span>=\"age!=null\"<\/span>><\/span>\n            AND age = #{age}\n        <\/if<\/span>><\/span>\n    <\/where<\/span>><\/span>\n<\/select<\/span>><\/span>\n<\/code><\/pre>\n
          \u5bf9\u5e94\u7684\u7528\u4f8b\u4ee3\u7801<\/p>\n
          \/**\n * select\u5143\u7d20\u7684useCache\u7f6e\u4e3afalse\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\uff0c\u4f46\u662f\u4e0d\u4f1a\u60c5\u51b5\u4e8c\u7ea7\u7f13\u5b58\u6570\u636e\n *\n * @throws<\/span> IOException\n *\/<\/span>\n@Test<\/span>\npublic<\/span> void<\/span> level2CacheTest4<\/span>()<\/span> throws<\/span> IOException <\/span>{\n    String mybatisConfig = \"demo9\/mybatis-config1.xml\"<\/span>;\n    this<\/span>.before(mybatisConfig);\n    \/\/\u7b2c\u4e00\u6b21\u67e5\u8be2\u8bbf\u95eegetList1\uff0c\u4f1a\u5c06\u6570\u636e\u4e22\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d<\/span>\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n    }\n\n    \/\/getList3\u5bf9\u5e94\u7684select\u7684useCache\u4e3afalse\uff0c\u4f1a\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\uff0c\u6240\u4ee5\u4f1a\u76f4\u63a5\u53bb\u8bbf\u95eedb<\/span>\n    for<\/span> (int<\/span> i = 0<\/span>; i < 2<\/span>; i++) {\n        try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n            UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n            List<UserModel> userModelList1 = mapper.getList3(null<\/span>);\n            log.info(\"{}\"<\/span>, userModelList1);\n        }\n    }\n\n    \/\/\u4e0b\u9762\u7684\u67e5\u8be2\u53c8\u53bb\u6267\u884c\u4e86getList1\uff0c\u7531\u4e8e\u4e0a\u9762\u7684\u7b2c\u4e00\u6b21\u67e5\u8be2\u4e5f\u662f\u8bbf\u95eegetList1\u4f1a\u5c06\u6570\u636e\u653e\u5728\u4e8c\u7ea7\u7f13\u5b58\u4e2d\uff0c\u6240\u4ee5\u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u4ece\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6\u5230\u6570\u636e<\/span>\n    try<\/span> (SqlSession sqlSession = this<\/span>.sqlSessionFactory.openSession(true<\/span>);) {\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        List<UserModel> userModelList1 = mapper.getList1(null<\/span>);\n        log.info(\"{}\"<\/span>, userModelList1);\n    }\n}\n<\/code><\/pre>\n
          \u6ce8\u610f\u4e0a\u9762\u67094\u6b21\u67e5\u8be2\uff0c\u7b2c\u4e00\u6b21\u67e5\u8be2\u8bbf\u95eegetList1\uff0c\u4f1a\u5c06\u6570\u636e\u4e22\u5230\u4e8c\u7ea7\u7f13\u5b58\u4e2d\uff0c\u800c\u7b2c\u4e8c\u4e09\u6b21\u67e5\u8be2\u8bbf\u95ee\u7684\u662fgetList3\uff0cgetList3\u5bf9\u5e94\u7684select\u7684useCache\u4e3afalse\uff0c\u4f1a\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58\uff0c\u6240\u4ee5\u4f1a\u76f4\u63a5\u53bb\u8bbf\u95eedb\uff0c\u7b2c\u56db\u6b21\u67e5\u8be2\u4e5f\u662f\u8bbf\u95eegetList1\uff0c\u7531\u4e8e\u7b2c\u4e00\u6b21\u67e5\u8be2\u4e5f\u662f\u8bbf\u95eegetList1\u4f1a\u5c06\u6570\u636e\u653e\u5728\u4e8c\u7ea7\u7f13\u5b58\u4e2d\uff0c\u6240\u4ee5\u7b2c4\u6b21\u67e5\u8be2\u76f4\u63a5\u4ece\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6\u5230\u4e86\u6570\u636e\uff0c\u8fd0\u884c\u8f93\u51fa\uff1a<\/p>\n
          13<\/span>:38.454<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.0<\/span>\n13<\/span>:38.852<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==>  Preparing: SELECT id,name,age FROM t_user \n13<\/span>:38.898<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - ==> Parameters: \n13<\/span>:38.929<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList1 - <==      Total: 4<\/span>\n13<\/span>:38.930<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n13<\/span>:38.941<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList3 - ==>  Preparing: SELECT id,name,age FROM t_user \n13<\/span>:38.942<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList3 - ==> Parameters: \n13<\/span>:38.945<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList3 - <==      Total: 4<\/span>\n13<\/span>:38.945<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n13<\/span>:38.946<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList3 - ==>  Preparing: SELECT id,name,age FROM t_user \n13<\/span>:38.946<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList3 - ==> Parameters: \n13<\/span>:38.952<\/span> [main] DEBUG c.j.c.d.mapper.UserMapper.getList3 - <==      Total: 4<\/span>\n13<\/span>:38.952<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n13<\/span>:38.957<\/span> [main] DEBUG c.j.chat05.demo9.mapper.UserMapper - Cache Hit Ratio [com.javacode2018.chat05.demo9.mapper.UserMapper]: 0.5<\/span>\n13<\/span>:38.957<\/span> [main] INFO  c.j.chat05.demo9.Demo9Test - [UserModel(id=1<\/span>, name=\u8def\u4eba\u7532Java, age=30<\/span>), UserModel(id=2<\/span>, name=\u5f20\u5b66\u53cb, age=50<\/span>), UserModel(id=3<\/span>, name=\u5218\u5fb7\u534e, age=50<\/span>), UserModel(id=5100<\/span>, name=\u8def\u4eba, age=30<\/span>)]\n<\/code><\/pre>\n
          \u4ece\u8f93\u51fa\u4e2d\u53ef\u4ee5\u770b\u51fa\u524d\u97623\u6b21\u67e5\u8be2\u90fd\u8bbf\u95eedb\u4e86\uff0c\u6700\u540e\u4e00\u6b21\u67e5\u8be2\u8bbf\u95ee\u7684\u662f\u4e8c\u7ea7\u7f13\u5b58\u547d\u4e2d\u4e86\u6570\u636e\u30024\u6b21\u67e5\u8be2\uff0c\u7b2c1\u6b21\u548c\u7b2c4\u6b21\u4f1a\u8bbf\u95ee\u4e8c\u7ea7\u7f13\u5b58\uff0c\u4e2d\u95f42\u6b21\u8df3\u8fc7\u4e86\u4e8c\u7ea7\u7f13\u5b58\uff0c\u4e8c\u7ea7\u7f13\u5b58\u547d\u4e2d\u4e861\u6b21\uff0c\u6240\u4ee5\u6700\u540e\u4e00\u6b21\u8f93\u51fa\u7684\u547d\u4e2d\u7387\u662f0.5<\/p>\n
          \u603b\u7ed3<\/span> <\/span><\/h3>\n
            \n
          1. \n
            \u4e00\u4e8c\u7ea7\u7f13\u5b58\u8bbf\u95ee\u987a\u5e8f\uff1a\u4e00\u4e8c\u7ea7\u7f13\u5b58\u90fd\u5b58\u5728\u7684\u60c5\u51b5\u4e0b\uff0c\u4f1a\u5148\u8bbf\u95ee\u4e8c\u7ea7\u7f13\u5b58\uff0c\u7136\u540e\u518d\u8bbf\u95ee\u4e00\u7ea7\u7f13\u5b58\uff0c\u6700\u540e\u624d\u4f1a\u8bbf\u95eedb\uff0c\u8fd9\u4e2a\u987a\u5e8f\u5927\u5bb6\u7406\u89e3\u4e00\u4e0b<\/strong><\/p>\n<\/li>\n
          2. \n
            \u5c06mapper xml\u4e2dselect\u5143\u7d20\u7684flushCache\u5c5e\u6027\u7f6e\u4e3afalse\uff0c\u6700\u7ec8\u4f1a\u6e05\u9664\u4e00\u7ea7\u7f13\u5b58\u6240\u6709\u6570\u636e\uff0c\u540c\u65f6\u4f1a\u6e05\u9664\u8fd9\u4e2aselect\u6240\u5728\u7684namespace\u5bf9\u5e94\u7684\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u6240\u6709\u7684\u6570\u636e<\/strong><\/p>\n<\/li>\n
          3. \n
            \u5c06mapper xml\u4e2dselect\u5143\u7d20\u7684useCache\u7f6e\u4e3afalse\uff0c\u4f1a\u4f7f\u8fd9\u4e2a\u67e5\u8be2\u8df3\u8fc7\u4e8c\u7ea7\u7f13\u5b58<\/strong><\/p>\n<\/li>\n
          4. \n
            \u603b\u4f53\u4e0a\u6765\u8bf4\u4f7f\u7528\u7f13\u5b58\u53ef\u4ee5\u63d0\u5347\u67e5\u8be2\u6548\u7387\uff0c\u8fd9\u5757\u77e5\u8bc6\u638c\u63e1\u4e86\uff0c\u5927\u5bb6\u53ef\u4ee5\u6839\u636e\u4e1a\u52a1\u81ea\u884c\u9009\u62e9<\/strong><\/p>\n<\/li>\n<\/ol>\n
            \u6848\u4f8b\u4ee3\u7801<\/span> <\/span><\/h3>\n
            \u94fe\u63a5\uff1ahttps:\/\/pan.baidu.com\/s\/1vt-MAX3oJOu9gyxZAhKkbg <\/span>\n\u63d0\u53d6\u7801\uff1ai8op\n<\/code><\/pre>\n
            MyBatis\u7cfb\u5217<\/span> <\/span><\/h3>\n
              \n
            1. \n
              MyBatis\u7cfb\u5217\u7b2c1\u7bc7\uff1aMyBatis\u672a\u51fa\u4e16\u4e4b\u524d\u6211\u4eec\u90a3\u4e9b\u75db\u82e6\u7684\u7ecf\u5386<\/a><\/p>\n<\/li>\n
            2. \n
              MyBatis\u7cfb\u5217\u7b2c2\u7bc7\uff1a\u5165\u95e8\u7bc7\uff0c\u5e26\u4f60\u611f\u53d7\u4e00\u4e0bmybatis\u72ec\u7279\u7684\u9b45\u529b\uff01<\/a><\/p>\n<\/li>\n
            3. \n
              MyBatis\u7cfb\u5217\u7b2c3\u7bc7\uff1aMybatis\u4f7f\u7528\u8be6\u89e3\uff081\uff09<\/a><\/p>\n<\/li>\n
            4. \n
              MyBatis\u7cfb\u5217\u7b2c4\u7bc7\uff1aMybatis\u4f7f\u7528\u8be6\u89e3\uff082\uff09<\/a><\/p>\n<\/li>\n
            5. \n
              Mybatis\u7cfb\u5217\u7b2c5\u7bc7\uff1aMapper\u63a5\u53e3\u591a\u79cd\u65b9\u5f0f\u4f20\u53c2\u8be6\u89e3\u3001\u539f\u7406\u3001\u6e90\u7801\u89e3\u6790<\/a><\/p>\n<\/li>\n
            6. \n
              Mybatis\u7cfb\u5217\u7b2c6\u7bc7\uff1a\u6055\u6211\u76f4\u8a00\uff0cmybatis\u589e\u5220\u6539\u4f60\u672a\u5fc5\u73a9\u5f97\u8f6c!<\/a><\/p>\n<\/li>\n
            7. \n
              Mybatis\u7cfb\u5217\u7b2c7\u7bc7\uff1a\u5404\u79cd\u67e5\u8be2\u8be6\u89e3<\/a><\/p>\n<\/li>\n
            8. \n
              Mybatis\u7cfb\u5217\u7b2c8\u7bc7\uff1a\u81ea\u52a8\u6620\u5c04\uff0c\u4f7f\u7528\u9700\u8c28\u614e\uff01<\/a><\/p>\n<\/li>\n
            9. \n
              Mybatis\u7cfb\u5217\u7b2c9\u7bc7\uff1a\u5ef6\u8fdf\u52a0\u8f7d\u3001\u9274\u522b\u5668\u3001\u7ee7\u627f\u600e\u4e48\u73a9\uff1f<\/a><\/p>\n<\/li>\n
            10. \n
              Mybatis\u7cfb\u5217\u7b2c10\u7bc7\uff1a\u52a8\u6001SQL\uff0c\u8fd9\u4e48\u591a\u79cd\u4f60\u90fd\u4f1a\uff1f<\/a><\/p>\n<\/li>\n
            11. \n
              Mybatis\u7cfb\u5217\u7b2c11\u7bc7\uff1a\u7c7b\u578b\u5904\u7406\u5668\uff0c\u8fd9\u4e2a\u4f60\u5f97\u4f1a\u73a9<\/a><\/p>\n<\/li>\n<\/ol>\n
              \u66f4\u591a\u597d\u6587\u7ae0<\/span> <\/span><\/h3>\n
                \n
              1. \n
                Java\u9ad8\u5e76\u53d1\u7cfb\u5217\uff08\u517134\u7bc7\uff09<\/a><\/p>\n<\/li>\n
              2. \n
                MySql\u9ad8\u624b\u7cfb\u5217\uff08\u517127\u7bc7\uff09<\/a><\/p>\n<\/li>\n
              3. \n
                Maven\u9ad8\u624b\u7cfb\u5217\uff08\u517110\u7bc7\uff09<\/a><\/p>\n<\/li>\n
              4. \n
                \u804a\u804adb\u548c\u7f13\u5b58\u4e00\u81f4\u6027\u5e38\u89c1\u7684\u5b9e\u73b0\u65b9\u5f0f<\/a><\/p>\n<\/li>\n
              5. \n
                \u63a5\u53e3\u5e42\u7b49\u6027\u8fd9\u4e48\u91cd\u8981\uff0c\u5b83\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5b9e\u73b0\uff1f<\/a><\/p>\n<\/li>\n<\/ol>\n<\/section>\n
                \n
                \u611f\u8c22\u5927\u5bb6\u7684\u9605\u8bfb\uff0c\u4e5f\u6b22\u8fce\u60a8\u628a\u8fd9\u7bc7\u6587\u7ae0\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u670b\u53cb\u4e00\u8d77\u9605\u8bfb\uff01\u8c22\u8c22\uff01<\/span><\/strong><\/strong><\/strong><\/span><\/p>\n

                <\/p>\n
                \n
                \n
                \n
                \u8def\u4eba\u7532java<\/span><\/strong><\/span>
                <\/p>\n
                \n
                \n
                \u25b2\u957f\u6309\u56fe\u7247\u8bc6\u522b\u4e8c\u7ef4\u7801\u5173\u6ce8<\/span><\/p>\n

                <\/p>\n
                \u8def\u4eba\u7532Java\uff1a\u5de5\u4f5c10\u5e74\u7684\u524d\u963f\u91ccP7\u5206\u4eabJava\u3001\u7b97\u6cd5\u3001\u6570\u636e\u5e93\u65b9\u9762\u7684\u6280\u672f\u5e72\u8d27\uff01<\/span><\/strong>\u575a\u4fe1\u7528\u6280\u672f\u6539\u53d8\u547d\u8fd0\uff0c\u8ba9\u5bb6\u4eba\u8fc7\u4e0a\u66f4\u4f53\u9762\u7684\u751f\u6d3b\uff01<\/span><\/strong><\/span><\/p>\n<\/section>\n<\/section>\n<\/section>\n
                \u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7\uff1ahttps:\/\/mp.weixin.qq.com\/s\/hkzj-_JjO0r-ez1k8EXpkQ<\/p>\n","raw":"","protected":false},"excerpt":{"rendered":"
                Mybatis\u7cfb\u5217\u76ee\u6807\uff1a\u4ece\u5165\u95e8\u5f00\u59cb\u5f00\u59cb\u638c\u63e1\u4e00\u4e2a\u9ad8\u7ea7\u5f00\u53d1\u6240\u9700\u8981\u7684Mybatis\u6280\u80fd\u3002 \u8fd9\u662fmybatis\u7cfb\u5217\u7b2c12\u7bc7\uff0c\u6e90\u7801\u4f4d\u4e8e\u6587\u7ae0\u5c3e …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[33,7,8],"tags":[],"class_list":["post-2941","post","type-post","status-publish","format-standard","hentry","category-mybatis","category-spring-boot","category-spring-cloud"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","content_first_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_frist_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","post_all_images":[{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","id":"image0"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/default\/nine\/2023-07-14\/15-32-44\/20230714153244dcdc7bca5.png","id":"image1"}],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"Mybatis","post_date":"2023-07-14","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":817,"next_post_id":2943,"next_post_title":"SpringBoot \u901a\u7528\u9650\u6d41\u65b9\u6848\uff08VIP\u73cd\u85cf\u7248\uff09","previous_post_id":2937,"previous_post_title":"SpringBoot \u4e2d\u7684\u591a\u7ebf\u7a0b\u4e8b\u52a1\u5904\u7406\u592a\u7e41\u7410\uff1f\u4e00\u4e2a\u81ea\u5b9a\u4e49\u6ce8\u89e3\u76f4\u63a5\u641e\u5b9a\uff01","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2941"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2941\/revisions"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}