使用spring多数据源动态切换

public class DataSourceContextHolder {
    private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>();

    public static synchronized void setDbType(final String dbType) {
        contextHolder.set(dbType);
    }

    public static String getDbType() {
        return (contextHolder.get());
    }

    public static void clearDbType() {
        contextHolder.remove();
    }
}


import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;

public class DynamicDataSource extends AbstractRoutingDataSource {
    @Override
    protected Object determineCurrentLookupKey() {
        return DataSourceContextHolder.getDbType();
    }
}

<bean id="dataSource" class="DynamicDataSource">
   <property name="targetDataSources">
      <map key-type="java.lang.String">
         <!--                 <entry value-ref="dataSourceSpied" key="dataSourceSpied" /> -->
         <entry value-ref="dataSource1" key="dataSource1" />
         <entry value-ref="dataSource2" key="dataSource2" />
      </map>
   </property>

   <!-- 默认使用productDataSource的数据源 -->
   <property name="defaultTargetDataSource" ref="dataSource1" />
</bean>

<bean id="dataSource1" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
   <!-- 基本属性 url、user、password -->
   <property name="driverClassName" value="${jdbc.driverClassName}" />
   <property name="url" value="${jdbc.url}" />
   <property name="username" value="${jdbc.username}" />
   <property name="password" value="${jdbc.password}" />

   <!-- 配置初始化大小、最小、最大 -->
   <property name="initialSize" value="${druid.initialSize}" />
   <property name="minIdle" value="${druid.minIdle}" />
   <property name="maxActive" value="${druid.maxActive}" />

   <!-- 配置获取连接等待超时的时间 -->
   <property name="maxWait" value="${druid.maxWait}" />

   <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
   <property name="timeBetweenEvictionRunsMillis" value="${druid.timeBetweenEvictionRunsMillis}" />

   <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
   <property name="minEvictableIdleTimeMillis" value="${druid.minEvictableIdleTimeMillis}" />

   <property name="validationQuery" value="${druid.validationQuery}" />


   <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
   <property name="poolPreparedStatements" value="${druid.poolPreparedStatements}" />
   <property name="maxPoolPreparedStatementPerConnectionSize" value="${druid.maxPoolPreparedStatementPerConnectionSize}" />

   <!-- 配置监控统计拦截的filters -->
   <property name="filters" value="${druid.filters}" />
</bean>

<bean id="dataSource2">

。。。。。。

</bean>

//调用之前设置
DataSourceContextHolder.setDbType("dataSource2");
List<Map> result = this.leakAnalysisService.getApfLeakData(param);