{"id":2348,"date":"2023-06-27T15:33:04","date_gmt":"2023-06-27T07:33:04","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2348"},"modified":"2023-07-13T15:50:30","modified_gmt":"2023-07-13T07:50:30","slug":"%e8%81%8a%e8%81%8a-sharding-jdbc-%e5%88%86%e5%ba%93%e5%88%86%e8%a1%a8%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/mysql\/%e8%81%8a%e8%81%8a-sharding-jdbc-%e5%88%86%e5%ba%93%e5%88%86%e8%a1%a8%ef%bc%88%e4%b8%80%ef%bc%89\/","title":{"rendered":"\u804a\u804a Sharding-JDBC \u5206\u5e93\u5206\u8868\uff08\u4e00\uff09"},"content":{"rendered":"
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\n

\u5927\u5bb6\u597d\uff0c\u6211\u662f\u4e00\u5b89\uff0c\u4eca\u5929\u4ecb\u7ecd\u4e00\u4e0b Sharding-JDBC \u5b9e\u73b0\u5206\u5e93\u5206\u8868\u7684\u8be6\u7ec6\u914d\u7f6e\u3002<\/p>\n

<\/span>\u5206\u5e93\u5206\u8868\u5e26\u6765\u7684\u95ee\u9898<\/span><\/span><\/h3>\n

\u4ece\u5355\u4e00\u8868\u3001\u5355\u4e00\u5e93\u5207\u5206\u6210\u591a\u5e93\u3001\u591a\u8868\u5bf9\u4e8e\u6027\u80fd\u7684\u63d0\u5347\u662f\u5fc5\u7136\u7684\uff0c\u4f46\u662f\u540c\u65f6\u4e5f\u5e26\u6765\u4e86\u4e00\u4e9b\u95ee\u9898:<\/p>\n

    \n
  • \n
    \u5206\u5e03\u5f0f\u4e8b\u52a1\u95ee\u9898:<\/p>\n
    \n
    \n

    \u7531\u4e8e\u5782\u76f4\u5206\u5e93\u3001\u6c34\u5e73\u5206\u5e93\uff0c\u5c06\u6570\u636e\u5206\u644a\u5728\u4e0d\u540c\u5e93\u4e2d\uff0c\u751a\u81f3\u4e0d\u540c\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u52bf\u5fc5\u5e26\u6765\u4e86\u5206\u5e03\u5f0f\u4e8b\u52a1\u7684\u95ee\u9898\u3002\u5bf9\u4e8e\u5355\u5e93\u5355\u8868\u7684\u4e8b\u52a1\u5f88\u597d\u63a7\u5236\uff0c\u5206\u5e03\u5f0f\u4e8b\u52a1\u7684\u63a7\u5236\u5374\u662f\u975e\u5e38\u5934\u75bc\uff0c\u4f46\u662f\u597d\u5728\u73b0\u5728\u5df2\u7ecf\u6709\u6210\u719f\u7684\u89e3\u51b3\u65b9\u6848,\u8fd9\u4e2a\u540e\u7eed\u518d\u4ecb\u7ecd\u3002<\/p>\n<\/blockquote>\n<\/blockquote>\n<\/section>\n<\/li>\n<\/ul>\n

    \n
      \n
    • \n
      \u8de8\u8282\u70b9\u5173\u8054 join \u95ee\u9898<\/p>\n
      \n
      \n

      \u5728\u5207\u5206\u4e4b\u524d\u5173\u8054\u67e5\u8be2\u975e\u5e38\u7b80\u5355\uff0c\u76f4\u63a5 SQL JOIN \u4fbf\u80fd\u89e3\u51b3\uff0c\u4f46\u662f\u5207\u5206\u4e4b\u540e\u6570\u636e\u5206\u644a\u5728\u4e0d\u540c\u7684\u8282\u70b9\u4e0a\uff0c\u6b64\u65f6 JOIN \u5c31\u6bd4\u8f83\u9ebb\u70e6\u4e86\uff0c\u56e0\u6b64\u5207\u5206\u4e4b\u540e\u5c3d\u91cf\u907f\u514d JOIN\uff0c\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u6709\u4e9b\u65b9\u6cd5\uff1a<\/p>\n<\/blockquote>\n<\/blockquote>\n<\/section>\n<\/li>\n<\/ul>\n

        \n
      1. \n
        \u5168\u5c40\u8868<\/section>\n<\/li>\n<\/ol>\n

        \u8fd9\u79cd\u5f88\u597d\u7406\u89e3\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u5168\u5c40\u9700\u8981\u5173\u8054\u7684\u8868\u53ef\u4ee5\u5728\u6bcf\u4e2a\u6570\u636e\u8282\u70b9\u4e0a\u90fd\u5b58\u50a8\u4e00\u4efd\uff0c\u4e00\u822c\u662f\u4e00\u4e9b\u6570\u636e\u5b57\u5178\u8868(\u5168\u5c40\u8868\u5728 Sharding-JDBC \u79f0\u4e4b\u4e3a\u5e7f\u64ad\u8868)<\/p>\n

          \n
        1. \n
          \u5b57\u6bb5\u5197\u4f59<\/section>\n<\/li>\n<\/ol>\n

          \u8fd9\u662f\u4e00\u79cd\u5178\u578b\u7684\u53cd\u8303\u5f0f\u8bbe\u8ba1\uff0c\u4e3a\u4e86\u907f\u514d\u5173\u8054 JOIN\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e9b\u5197\u4f59\u5b57\u6bb5\u4fdd\u5b58\uff0c\u6bd4\u5982\u8ba2\u5355\u8868\u4fdd\u5b58 userId \u65f6\uff0c\u53ef\u4ee5\u5c06 userName \u4e5f\u4e00\u5e76\u4fdd\u5b58\uff0c\u8fd9\u6837\u5c31\u907f\u514d\u4e86\u548c User \u8868\u7684\u5173\u8054 JOIN \u4e86(\u5b57\u6bb5\u5197\u4f59\u8fd9\u79cd\u65b9\u6848\u5b58\u5728\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898)<\/p>\n

            \n
          1. \n
            \u6570\u636e\u7ec4\u88c5<\/section>\n<\/li>\n<\/ol>\n

            \u8fd9\u79cd\u8fd8\u662f\u6bd4\u8f83\u597d\u7406\u89e3\u7684\uff0c\u76f4\u63a5\u4e0d\u4f7f\u7528 JOIN \u5173\u8054\uff0c\u5206\u4e24\u6b21\u67e5\u8be2\uff0c\u4ece\u7b2c\u4e00\u6b21\u7684\u7ed3\u679c\u96c6\u4e2d\u627e\u51fa\u5173\u8054\u6570\u636e\u7684\u552f\u4e00\u6807\u8bc6\uff0c\u7136\u540e\u518d\u6b21\u53bb\u67e5\u8be2\uff0c\u6700\u540e\u5bf9\u5f97\u5230\u7684\u6570\u636e\u8fdb\u884c\u7ec4\u88c5(\u9700\u8981\u8fdb\u884c\u624b\u52a8\u7ec4\u88c5\uff0c\u6570\u636e\u5f88\u5927\u7684\u60c5\u51b5\u5bf9 CPU\u3001\u5185\u5b58\u6709\u4e00\u5b9a\u7684\u8981\u6c42)<\/p>\n

              \n
            1. \n
              \u7ed1\u5b9a\u8868<\/section>\n<\/li>\n<\/ol>\n

              \u5bf9\u4e8e\u76f8\u4e92\u5173\u8054\u7684\u6570\u636e\u8282\u70b9\uff0c\u901a\u8fc7\u5206\u7247\u89c4\u5219\u5c06\u5176\u5207\u5206\u5230\u540c\u4e00\u4e2a\u5e93\u4e2d\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 SQL \u7684 JOIN \u8fdb\u884c\u5173\u8054\u67e5\u8be2(Sharding-JDBC \u4e2d\u79f0\u4e4b\u4e3a\u7ed1\u5b9a\u8868\uff0c\u6bd4\u5982\u8ba2\u5355\u8868\u548c\u7528\u6237\u8868\u7684\u7ed1\u5b9a)<\/p>\n

              \n
                \n
              • \n
                \u8de8\u8282\u70b9\u5206\u9875\u3001\u6392\u5e8f\u3001\u51fd\u6570\u95ee\u9898<\/p>\n
                \n
                \n

                \u5bf9\u4e8e\u8de8\u6570\u636e\u8282\u70b9\u8fdb\u884c\u5206\u9875\u3001\u6392\u5e8f\u6216\u8005\u4e00\u4e9b\u805a\u5408\u51fd\u6570\uff0c\u7b5b\u9009\u51fa\u6765\u7684\u4ec5\u4ec5\u662f\u9488\u5bf9\u5f53\u524d\u8282\u70b9\uff0c\u6bd4\u5982\u6392\u5e8f\uff0c\u4ec5\u4ec5\u80fd\u591f\u4fdd\u8bc1\u5728\u5355\u4e00\u6570\u636e\u8282\u70b9\u4e0a\u662f\u6709\u5e8f\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u5728\u6240\u6709\u8282\u70b9\u4e0a\u90fd\u662f\u6709\u5e8f\u7684\uff0c\u9700\u8981\u5c06\u5404\u4e2a\u8282\u70b9\u7684\u6570\u636e\u7684\u8fdb\u884c\u6c47\u603b\u91cd\u65b0\u624b\u52a8\u6392\u5e8f\u3002<\/p>\n<\/blockquote>\n<\/blockquote>\n<\/section>\n<\/li>\n<\/ul>\n