ds1.driverClassName=com.mysql.jdbc.Driver
ds1.url=jdbc:mysql://192.168.200.130:3306/test1?useUnicode=true&characterEncoding=UTF-8
ds1.username=hhh
ds1.password=123456  ds2.driverClassName=oracle.jdbc.OracleDriver
ds2.url=jdbc:mysql://localhost:3306/test2?useUnicode=true&characterEncoding=UTF-8
ds2.username=qqq
ds2.password=123456

　　 <bean id="dataSource" class="com.hhhqqq.datasource.DynamicDataSource">  <property name="targetDataSources">  <map key-type="java.lang.String">  <entry key="ds1" value-ref="ds1" />  <entry key="ds2" value-ref="ds2" />  </map>  </property>  <property name="defaultTargetDataSource" ref="ds1" />  </bean>  <bean id="ds1" class="com.alibaba.druid.pool.DruidDataSource"  destroy-method="close">  <property name="driverClassName" value="${ds1.driverClassName}" />  <property name="url" value="${ds1.url}" />  <property name="username" value="${ds1.username}" />  <property name="password" value="${ds1.password}" />  </bean>  <bean id="ds2" class="com.alibaba.druid.pool.DruidDataSource"  destroy-method="close">  <property name="driverClassName" value="${ds2.driverClassName}" />  <property name="url" value="${ds2.url}" />  <property name="username" value="${ds2.username}" />  <property name="password" value="${ds2.password}" />  </bean>

import java.util.logging.Logger;
import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;public class DynamicDataSource extends AbstractRoutingDataSource {/** * 取得当前使用那个数据源。 */  @Override  protected Object determineCurrentLookupKey() {  return DataSourceContextHolder.getDbType();    }  public Logger getParentLogger() {  // TODO Auto-generated method stub  return null;  }
}

public class DataSourceContextHolder {private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>();  /** * 设置当前数据库。 * @param dbType */  public static void setDbType(String dbType)  {  contextHolder.set(dbType);  }  /** * 取得当前数据源。 * @return */  public static String getDbType()  {  String str = (String) contextHolder.get();  return str;  }  /** * 清除上下文数据 */  public static void clearDbType()  {  contextHolder.remove();  }
}