{"id":722,"date":"2023-05-28T02:10:40","date_gmt":"2023-05-27T18:10:40","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=722"},"modified":"2023-05-28T02:10:40","modified_gmt":"2023-05-27T18:10:40","slug":"springboot%e5%a4%9a%e6%95%b0%e6%8d%ae%e6%ba%90%e5%88%87%e6%8d%a2%e5%b0%b1%e6%98%af%e8%bf%99%e4%b9%88%e7%ae%80%e5%8d%95","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/spring-boot\/springboot%e5%a4%9a%e6%95%b0%e6%8d%ae%e6%ba%90%e5%88%87%e6%8d%a2%e5%b0%b1%e6%98%af%e8%bf%99%e4%b9%88%e7%ae%80%e5%8d%95\/","title":{"rendered":"SpringBoot\u591a\u6570\u636e\u6e90\u5207\u6362\u5c31\u662f\u8fd9\u4e48\u7b80\u5355"},"content":{"rendered":"
\n

\u7801\u519c\u5728\u56e7\u9014<\/h2>\n
\n

\u6bcf\u5f53\u6674\u7a7a\u4e07\u91cc\u7684\u65f6\u5019\uff0c\u5929\u7a7a\u4f9d\u7136\u662f\u6e5b\u84dd\u7684\uff0c\u591c\u91cc\u6211\u8fd8\u662f\u4f1a\u4ef0\u671b\u8fd9\u96be\u5f97\u7684\u661f\u7a7a\u4fef\u77b0<\/span>\u504c\u5927\u7684\u57ce\u5e02\uff0c\u4e07\u5bb6\u706f\u706b\u4e2d\u5374\u6ca1\u6709\u4e00\u76cf\u706f\u662f\u4e3a\u6211\u4eae\u7740\u7684\u3002<\/span><\/p>\n<\/blockquote>\n

\u524d\u8a00<\/h2>\n

\u6211\u4eec\u5728\u8fdb\u884c\u8f6f\u4ef6\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u521a\u5f00\u59cb\u7684\u65f6\u5019\u56e0\u4e3a\u65e0\u6cd5\u4f30\u91cf\u7cfb\u7edf\u540e\u671f\u7684\u8bbf\u95ee\u91cf\u548c\u5e76\u53d1\u91cf\uff0c\u6240\u4ee5\u4e00\u5f00\u59cb\u4f1a\u91c7\u7528\u5355\u4f53\u67b6\u6784\uff0c\u540e\u671f\u5982\u679c\u7f51\u7ad9\u6d41\u91cf\u53d8\u5927\uff0c \u5e76\u53d1\u91cf\u53d8\u5927\uff0c\u90a3\u4e48\u5c31\u53ef\u80fd\u4f1a\u5c06\u67b6\u6784\u6269\u5c55\u4e3a\u5fae\u670d\u52a1\u67b6\u6784\uff0c\u5404\u4e2a\u5fae\u670d\u52a1\u5bf9\u5e94\u4e00\u4e2a\u6570\u636e\u5e93\uff0c\u4e0d\u8fc7\u8fd9\u6837\u7684\u6210\u672c\u5c31\u6709\u70b9\u5927\u4e86\uff0c\u53ef\u80fd\u53ea\u662f\u6709\u4e9b\u6a21\u5757\u7528\u7684\u4eba\u6bd4\u8f83\u591a\uff0c \u6709\u4e9b\u6a21\u5757\u6ca1\u4ec0\u4e48\u4eba\u7528\uff0c\u5982\u679c\u90fd\u8fdb\u884c\u670d\u52a1\u62c6\u5206\uff0c\u5176\u5b9e\u4e5f\u6ca1\u90a3\u4e2a\u5fc5\u8981\uff0c\u5982\u679c\u6709\u4e9b\u6a21\u5757\u7528\u7684\u4eba\u6bd4\u8f83\u591a\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u91c7\u7528\u8bfb\u5199\u5206\u79bb\u6765\u51cf\u8f7b\u538b\u529b\uff0c\u8fd9\u6837\u7684\u8bdd\uff0c \u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u5347\u7cfb\u7edf\u7684\u7528\u6237\u4f53\u9a8c\uff0c\u4e0d\u8fc7\u8fd9\u53ea\u662f\u5728\u6570\u636e\u5e93\u7684I\/O\u4e0a\u9762\u505a\u65b9\u6848\uff0c\u5982\u679c\u7cfb\u7edf\u7684\u538b\u529b\u5f88\u5927\uff0c\u90a3\u4e48\u80af\u5b9a\u8981\u505a\u8d1f\u8f7d\u5747\u8861\uff0c\u6211\u4eec\u4eca\u5929\u5c31\u5148\u8bf4 \u5b9e\u73b0\u6570\u636e\u5e93\u7684\u8bfb\u5199\u5206\u79bb\u3002\u6211\u4eec\u8981\u5728\u4ee3\u7801\u5c42\u9762\u5b9e\u73b0\u6570\u636e\u5e93\u7684\u8bfb\u5199\u5206\u79bb\uff0c\u90a3\u4e48\u6838\u5fc3\u5c31\u662f\u6570\u636e\u6e90\u7684\u5207\u6362\uff0c\u672c\u6587\u57fa\u4e8eAOP\u6765\u5b9e\u73b0\u6570\u636e\u6e90\u7684\u5207\u6362\u3002<\/p>\n

\u5de5\u7a0b\u7ed3\u6784<\/h2>\n
\u2514\u2500com<\/span>
    \u2514\u2500steak<\/span>
        \u2514\u2500transaction<\/span>
            \u2502<\/span>  TransactionDemoApplication.java<\/span>
            \u2502<\/span>  
            \u251c\u2500datasource<\/span>
            \u2502<\/span>  \u2502<\/span>  DatasourceChooser.java<\/span>
            \u2502<\/span>  \u2502<\/span>  DatasourceConfiguration.java<\/span>
            \u2502<\/span>  \u2502<\/span>  DatasourceContext.java<\/span>
            \u2502<\/span>  \u2502<\/span>  DatasourceScope.java<\/span>
            \u2502<\/span>  \u2502<\/span>  DynamicDatasourceAspect.java<\/span>
            \u2502<\/span>  \u2502<\/span>  
            \u2502<\/span>  \u2514\u2500properties<\/span>
            \u2502<\/span>          DynamicDatasourceProperties.java<\/span>
            \u2502<\/span>          MainDatasourceProperties.java<\/span>         
<\/code><\/pre>\n
\u5728\u4e0b\u9762\u7684\u5b9e\u73b0\u4e2d\uff0c\u6211\u4eec\u4e00\u4e2a\u6709\u4e09\u4e2a\u6570\u636e\u6e90\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u662f\u9ed8\u8ba4\u7684\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\u5177\u4f53\u7684\u6570\u636e\u6e90\uff0c\u90a3\u4e48\u5c31\u4f7f\u7528\u9ed8\u8ba4\u7684\uff0c\u6211\u4eec\u662f\u57fa\u4e8e\u7533\u660e\u5f0f\u7684\u65b9\u5f0f\u6765\u5207\u6362 \u6570\u636e\u6e90\uff0c\u53ea\u9700\u8981\u5728\u5177\u4f53\u7684\u63a5\u53e3\u4e0a\u52a0\u4e0a\u6ce8\u89e3\u4fbf\u80fd\u5b9e\u73b0\u6570\u636e\u6e90\u7684\u5207\u6362\u3002<\/p>\n
\u7f16\u7801\u5b9e\u73b0<\/h2>\n
yml\u6587\u4ef6<\/h3>\n
\u4e3b\u6570\u636e\u6e90\u76f4\u63a5\u4f7f\u7528spring\u7684\u914d\u7f6e\uff0c\u5176\u4ed6\u6570\u636e\u6e90\u91c7\u7528\u81ea\u5b9a\u4e49\u7684\u65b9\u5f0f\uff0c\u8fd9\u91cc\u91c7\u7528\u4e00\u4e2amap\u7ed3\u6784\u6765\u5b9a\u4e49\uff0c\u65b9\u4fbf\u8fdb\u884c\u89e3\u6790\uff0c\u53ef\u4ee5\u5728yml\u6587\u4ef6\u91cc\u8fdb\u884c\u6dfb\u52a0\u591a\u4e2a\uff0c\u5728\u4ee3\u7801 \u903b\u8f91\u5c42\u9762\u4e0d\u7528\u6539\u52a8\u3002<\/p>\n
spring:<\/span>
  datasource:<\/span>
    type:<\/span> com.alibaba.druid.pool.DruidDataSource<\/span>
    druid:<\/span>
      username:<\/span> root<\/span>
      password:<\/span> 123456<\/span>
      url:<\/span> jdbc:mysql:\/\/127.0.0.1:3306\/db?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC<\/span>
      driver-class-name:<\/span> com.mysql.cj.jdbc.Driver<\/span>

dynamic:<\/span>
  datasource:<\/span> {
    slave1:<\/span> {
      username:<\/span> 'root'<\/span>,
      password:<\/span> '123456'<\/span>,
      url:<\/span> 'jdbc:mysql:\/\/127.0.0.1:3306\/db?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC'<\/span>,
      driver-class-name:<\/span> 'com.mysql.cj.jdbc.Driver'<\/span>
    },
    slave2:<\/span> {
      username:<\/span> 'root'<\/span>,
      password:<\/span> '123456'<\/span>,
      url:<\/span> 'jdbc:mysql:\/\/127.0.0.1:3306\/db?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC'<\/span>,
      driver-class-name:<\/span> 'com.mysql.cj.jdbc.Driver'<\/span>
    }
  }
<\/code><\/pre>\n
\u4e3b\u6570\u636e\u6e90MainDatasourceProperties<\/h3>\n
\u5bf9\u4e8e\u4e3b\u6570\u636e\u6e90\uff0c\u6211\u4eec\u5355\u72ec\u62ff\u51fa\u6765\u653e\u5728\u4e00\u4e2a\u7c7b\u91cc\u9762\uff0c\u4e0d\u8fc7\u5176\u5b9e\u4e5f\u53ef\u4ee5\u653e\u5230dynamic\u91cc\u9762\uff0c\u53ea\u662f\u9700\u8981\u505a\u4e00\u5b9a\u7684\u5904\u7406\uff0c\u6211\u4eec\u5c31\u7b80\u5355\u7684\u653e\u51e0\u4e2a\u8fde\u63a5\u5c5e\u6027\u3002<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/220:14
 *\/<\/span>
@Component<\/span>
@ConfigurationProperties(prefix = \"spring.datasource.druid\")<\/span>
@Data<\/span>
public<\/span> class<\/span> MainDatasourceProperties<\/span> <\/span>{
    private<\/span> String username;
    private<\/span> String password;
    private<\/span> String url;
    private<\/span> String driverClassName;
}
<\/code><\/pre>\n
\u5176\u4ed6\u6570\u636e\u6e90DynamicDatasourceProperties<\/h3>\n
\u5176\u4ed6\u6570\u636e\u6e90\u4f7f\u7528\u4e00\u4e2aMap\u6765\u63a5\u53d7yml\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u6e90\u914d\u7f6e<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/213:47
 *\/<\/span>
@Component<\/span>
@ConfigurationProperties(prefix = \"dynamic\")<\/span>
@Data<\/span>
public<\/span> class<\/span> DynamicDatasourceProperties<\/span> <\/span>{
    private<\/span> Map<String,Map<String,String>> datasource;
}
<\/code><\/pre>\n
\u6570\u636e\u6e90\u914d\u7f6e\u7c7bDatasourceConfiguration<\/h3>\n
\u914d\u7f6e\u7c7b\u4e2d\u4e3b\u8981\u5bf9DataSource\u8fdb\u884c\u914d\u7f6e\uff0c\u4e3b\u6570\u636e\u6e90\u6211\u4eec\u6309\u7167\u6b63\u5e38\u7684bean\u6765\u5b9a\u4e49\u8fde\u63a5\u5c5e\u6027\uff0c\u800c\u5176\u4ed6\u6570\u636e\u6570\u636e\u6e90\u5219\u4f7f\u7528\u53cd\u5c04\u7684\u65b9\u5f0f\u6765\u8fdb\u884c\u8fde\u63a5\u5c5e\u6027\u7684 \u914d\u7f6e\uff0c\u56e0\u4e3a\u4e3b\u6570\u636e\u6e90\u4e00\u822c\u662f\u4e0d\u4f1a\u53d8\u52a8\u7684\uff0c\u4f46\u662f\u5176\u4ed6\u6570\u636e\u6e90\u53ef\u80fd\u4f1a\u53d1\u751f\u53d8\u52a8\uff0c\u53ef\u80fd\u4f1a\u6dfb\u52a0\uff0c\u8fd9\u65f6\u5019\u5982\u679c\u901a\u8fc7\u786c\u7f16\u7801\u53d6\u914d\u7f6e\uff0c\u90a3\u4e48\u6bcf\u589e\u52a0\u4e00\u4e2a\u6570\u636e\u6e90\uff0c\u5c31\u9700\u8981 \u589e\u52a0\u4e00\u4e2a\u914d\u7f6e\uff0c\u663e\u7136\u4e0d\u592a\u884c\uff0c\u6240\u4ee5\u5c31\u4f7f\u7528\u53cd\u5c04\u6765\u8fdb\u884c\u8d4b\u503c\u3002<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/111:34
 *\/<\/span>
@Configuration<\/span>
@AllArgsConstructor<\/span>
public<\/span> class<\/span> DatasourceConfiguration<\/span> <\/span>{

    final<\/span> MainDatasourceProperties mainDatasourceProperties;
    final<\/span> DynamicDatasourceProperties dynamicDatasourceProperties;

    @Bean<\/span>
    public<\/span> DataSource datasource<\/span>()<\/span><\/span>{
        Map<Object,Object> datasourceMap = new<\/span> HashMap<>();
        DatasourceChooser datasourceChooser = new<\/span> DatasourceChooser();
        \/**
         * main database
         *\/<\/span>
        DruidDataSource mainDataSource = new<\/span> DruidDataSource();
        mainDataSource.setUsername(mainDatasourceProperties.getUsername());
        mainDataSource.setPassword(mainDatasourceProperties.getPassword());
        mainDataSource.setUrl(mainDatasourceProperties.getUrl());
        mainDataSource.setDriverClassName(mainDatasourceProperties.getDriverClassName());
        datasourceMap.put(\"main\"<\/span>,mainDataSource);
        \/**
         * other database
         *\/<\/span>
        Map<String, Map<String, String>> sourceMap = dynamicDatasourceProperties.getDatasource();
        sourceMap.forEach((datasourceName,datasourceMaps) -> {
            DruidDataSource dataSource = new<\/span> DruidDataSource();
            datasourceMaps.forEach((K,V) -> {
                String setField = \"set\"<\/span> + K.substring(0<\/span>, 1<\/span>).toUpperCase() + K.substring(1<\/span>);
                \/\/\u8f6c\u6362yml\u6587\u4ef6\u4e2d\u5e26\u6709-\u7b26\u53f7\u7684\u5c5e\u6027<\/span>
                String[] strings = setField.split(\"\"<\/span>);
                StringBuilder newStr = new<\/span> StringBuilder();
                for<\/span> (int<\/span> i = 0<\/span>; i < strings.length; i++) {
                    if<\/span> (strings[i].equals(\"-\"<\/span>)) strings[i + 1<\/span>] = strings[i + 1<\/span>].toUpperCase();
                    if<\/span> (!strings[i].equals(\"-\"<\/span>)) newStr.append(strings[i]);
                }
                try<\/span> {
                    DruidDataSource.class.getMethod(newStr.toString(),String.class).invoke(dataSource,V);
                } catch<\/span> (Exception e) {
                    e.printStackTrace();
                }
            });
            datasourceMap.put(datasourceName,dataSource);
        });
        \/\/\u8bbe\u7f6e\u76ee\u6807\u6570\u636e\u6e90<\/span>
        datasourceChooser.setTargetDataSources(datasourceMap);
        \/\/\u8bbe\u7f6e\u9ed8\u8ba4\u6570\u636e\u6e90<\/span>
        datasourceChooser.setDefaultTargetDataSource(mainDataSource);
        return<\/span> datasourceChooser;
    }
}
<\/code><\/pre>\n
\u4e0a\u9762\u4f7f\u7528\u6570\u636e\u6e90\u914d\u7f6e\u7c7b\u4e2d\u4f7f\u7528\u53cd\u5c04\u5bf9\u5176\u4ed6\u6570\u636e\u6e90\u8fdb\u884c\u8fde\u63a5\u5c5e\u6027\u7684\u8bbe\u7f6e\uff0c\u7136\u540e\u8bbe\u7f6e\u76ee\u6807\u6570\u636e\u6e90\u548c\u9ed8\u8ba4\u6570\u636e\u6e90\uff0c\u91cc\u9762\u6709\u4e00\u4e2aDatasourceChooser<\/code>\u3002<\/p>\n
DatasourceChooser<\/h3>\n
DatasourceChooser<\/code>\u7ee7\u627f\u81eaAbstractRoutingDataSource<\/code>\uff0cAbstractRoutingDataSource<\/code>\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u6e90\u7684\u5207\u6362\uff0c\u5b83\u91cc\u9762\u7684 determineCurrentLookupKey()<\/code>\u65b9\u6cd5\u9700\u8981\u6211\u4eec\u8fd4\u56de\u4e00\u4e2a\u6570\u636e\u6e90\u7684\u540d\u79f0\uff0c\u5b83\u4f1a\u81ea\u52a8\u7ed9\u6211\u4eec\u5339\u914d\u4e0a\u6570\u636e\u6e90\u3002<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/112:21
 *\/<\/span>
public<\/span> class<\/span> DatasourceChooser<\/span> extends<\/span> AbstractRoutingDataSource<\/span> <\/span>{
    @Override<\/span>
    protected<\/span> Object determineCurrentLookupKey<\/span>()<\/span> <\/span>{
        return<\/span> DatasourceContext.getDatasource();
    }
}
<\/code><\/pre>\n
\u5982\u4e0b\u662fAbstractRoutingDataSource<\/code>\u7684\u90e8\u5206\u6e90\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\u6570\u636e\u6e90\u662f\u4e00\u4e2aMap\u7ed3\u6784\uff0c\u53ef\u4ee5\u901a\u8fc7\u6570\u636e\u6e90\u540d\u79f0\u67e5\u627e\u5230\u5bf9\u5e94\u7684\u6570\u636e\u6e90\u3002<\/p>\n
package<\/span> org.springframework.jdbc.datasource.lookup;

public<\/span> abstract<\/span> class<\/span> AbstractRoutingDataSource<\/span> extends<\/span> AbstractDataSource<\/span> implements<\/span> InitializingBean<\/span> <\/span>{
    @Nullable<\/span>
    private<\/span> Map<Object, DataSource> resolvedDataSources;
    public<\/span> AbstractRoutingDataSource<\/span>()<\/span> <\/span>{
    }
    protected<\/span> DataSource determineTargetDataSource<\/span>()<\/span> <\/span>{
        Object lookupKey = this<\/span>.determineCurrentLookupKey();
        DataSource dataSource = (DataSource)this<\/span>.resolvedDataSources.get(lookupKey);
    }

    @Nullable<\/span>
    protected<\/span> abstract<\/span> Object determineCurrentLookupKey<\/span>()<\/span><\/span>;
}
<\/code><\/pre>\n
DatasourceContext<\/h3>\n
DatasourceContext<\/code>\u5185\u90e8\u662f\u4e00\u4e2aThreadLocal<\/code>\uff0c\u4e3b\u8981\u662f\u7528\u6765\u5b58\u50a8\u6bcf\u4e00\u4e2a\u7ebf\u7a0b\u7684\u6570\u636e\u6e90\u540d\u79f0\u548c\u83b7\u53d6\u6570\u636e\u6e90\u540d\u79f0\uff0c\u800c\u6570\u636e\u6e90\u7684\u540d\u79f0\u6211\u4eec<\/span>\u901a\u8fc7AOP\u5207\u9762\u6765\u83b7\u53d6\u3002<\/span><\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/112:22
 *\/<\/span>
public<\/span> class<\/span> DatasourceContext<\/span> <\/span>{
    private<\/span> static<\/span> final<\/span> ThreadLocal<String> threadLocal = new<\/span> ThreadLocal<>();
    public<\/span> static<\/span> void<\/span> setDatasource<\/span>(String key)<\/span><\/span>{
        threadLocal.set(key);
    }
    public<\/span> static<\/span> String getDatasource<\/span>()<\/span><\/span>{
        return<\/span> threadLocal.get();
    }
}
<\/code><\/pre>\n
\u6570\u636e\u6e90\u6ce8\u89e3DatasourceScope<\/h3>\n
DatasourceScope<\/code>\u6807\u51c6\u5728\u65b9\u6cd5\u4e0a\u9762\uff0c\u901a\u8fc7scope<\/code>\u6765\u6307\u5b9a\u6570\u636e\u6e90\uff0c\u4e0d\u6307\u5b9a\u9ed8\u8ba4\u4e3a\u4e3b\u6570\u636e\u6e90main<\/code>\u3002<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/111:22
 *\/<\/span>
@Target({ElementType.METHOD})<\/span>
@Retention(RetentionPolicy.RUNTIME)<\/span>
@Documented<\/span>
public<\/span> @interface<\/span> DatasourceScope {
    String scope<\/span>()<\/span> default<\/span> \"main\"<\/span>;
}
<\/code><\/pre>\n
\u6570\u636e\u6e90\u5207\u9762DynamicDatasourceAspect<\/h3>\n
\u6211\u4eec\u5728\u8bbf\u95ee\u6bcf\u4e00\u4e2a\u5e26\u6709DatasourceScope<\/code>\u6ce8\u89e3\u7684\u65b9\u6cd5\u65f6\uff0c\u90fd\u4f1a\u7ecf\u8fc7\u6570\u636e\u6e90\u5207\u9762DynamicDatasourceAspect<\/code>\uff0c\u83b7\u53d6\u5230\u6ce8\u89e3\u4e0a\u9762\u7684 scope<\/code>\u7684\u503c\u540e\uff0c\u901a\u8fc7DatasourceContext<\/code>\u8bbe\u7f6e\u6570\u636e\u6e90\u540d\u79f0\uff0c\u4fbf\u53ef\u5b9e\u73b0\u5bf9\u6570\u636e\u6e90\u7684\u5207\u6362\u3002<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/111:34
 *\/<\/span>
@Aspect<\/span>
@Component<\/span>
public<\/span> class<\/span> DynamicDatasourceAspect<\/span> <\/span>{

    @Pointcut(\"@annotation(dataSourceScope)\")<\/span>
    public<\/span> void<\/span> dynamicPointcut<\/span>(DatasourceScope dataSourceScope)<\/span><\/span>{}

    @Around(value = \"dynamicPointcut(dataSourceScope)\", argNames = \"joinPoint,dataSourceScope\")<\/span>
    public<\/span> Object dynamicAround<\/span>(ProceedingJoinPoint joinPoint , DatasourceScope dataSourceScope)<\/span> throws<\/span> Throwable <\/span>{
        String scope = dataSourceScope.scope();
        DatasourceContext.setDatasource(scope);
        return<\/span> joinPoint.proceed();
    }
}
<\/code><\/pre>\n
\u4f7f\u7528<\/h2>\n
\u53ea\u9700\u8981\u5728\u5177\u4f53\u7684\u65b9\u6cd5\u4e0a\u9762\u6807\u6ce8\u6570\u636e\u6e90\u6ce8\u89e3@DatasourceScope<\/code>\uff0c\u5e76\u6307\u5b9ascope<\/code>\u7684\u503c\uff0c\u4fbf\u53ef\u5b9e\u73b0\u5207\u6362\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u90a3\u4e48\u5c31\u4f7f\u7528\u4e3b\u6570\u636e\u6e90\u3002<\/p>\n
\/**
 * @author<\/span> \u5218\u724c
 * @date<\/span> 2022\/3\/19:49
 *\/<\/span>
@Service<\/span>
@AllArgsConstructor<\/span>
public<\/span> class<\/span> OrderService<\/span> <\/span>{
    
    private<\/span> JdbcTemplate jdbcTemplate;
    
    @DatasourceScope(scope = \"slave1\")<\/span>
    public<\/span> R saveOrder<\/span>(Integer userId , Integer commodityId)<\/span><\/span>{
        String sql = \"INSERT INTO `order`(user_id,commodity_id) VALUES(\"<\/span>+userId+\",\"<\/span>+commodityId+\")\"<\/span>;
        jdbcTemplate.execute(sql);
        return<\/span> R.builder().code(200<\/span>).msg(\"save order success\"<\/span>).build();
    }
}
<\/code><\/pre>\n
\n
\u5173\u4e8e\u591a\u6570\u636e\u6e90\u7684\u5207\u6362\uff0c\u5c31\u5206\u4eab\u5230\u8fd9\u91cc\uff0c\u611f\u8c22\u4f60\u7684\u89c2\u770b\uff0c\u4e0b\u671f\u89c1<\/p>\n<\/blockquote>\n

<\/p>\n
\n
\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7:                 \u5218\u724c              <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
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