Spring+Mybatis 多数据源配置

   项目目录结构如下：

 

 

      spring配置文件

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
     xmlns:context="http://www.springframework.org/schema/context"
     xsi:schemaLocation="
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">

     <bean
         class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
         <property name="locations">
             <value>classpath:init-config.properties</value>
         </property>
     </bean>

     <!-- enable component scanning (beware that this does not enable mapper scanning!) -->
     <context:component-scan base-package="org.zhuc.mybatis" />

     <!-- enable autowire -->
     <context:annotation-config />

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

         <!-- 配置初始化大小、最小、最大 -->
         <property name="initialSize" value="1" />
         <property name="minIdle" value="1" />
         <property name="maxActive" value="20" />

         <!-- 配置获取连接等待超时的时间 -->
         <property name="maxWait" value="60000" />

         <!-- 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="60000" />

         <!-- 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="300000" />

         <property name="validationQuery" value="SELECT 'x'" />
         <property name="testWhileIdle" value="true" />
         <property name="testOnBorrow" value="false" />
         <property name="testOnReturn" value="false" />

         <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
         <property name="poolPreparedStatements" value="true" />
         <property name="maxPoolPreparedStatementPerConnectionSize"
             value="20" />

         <!-- 配置监控统计拦截的filters -->
         <property name="filters" value="stat" />
     </bean>

     <!-- define the SqlSessionFactory -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource" />
         <property name="typeAliasesPackage" value="org.zhuc.mybatis.domain" />
     </bean>

     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
         <property name="basePackage" value="org.zhuc.mybatis.mapper" />
     </bean>

     <!-- transaction manager, use JtaTransactionManager for global tx -->
     <bean id="transactionManager"
         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource" />
         <qualifier value="isap" />
     </bean>

     <!-- 全注解方式   需加上@Transactional -->
     <tx:annotation-driven transaction-manager="transactionManager" />

     <!-- 事务控制的业务方法配 -->
     <!--
     <tx:advice id="txAdvice" transaction-manager="transactionManager">
         <tx:attributes>
             <tx:method name="get*" read-only="true" />
             <tx:method name="page*" read-only="true" />
             <tx:method name="list*" read-only="true" />
             <tx:method name="*" />
         </tx:attributes>
     </tx:advice>
     -->
     <!-- 事务控制拦截 -->
     <!--
     <aop:config proxy-target-class="true">
         <aop:advisor pointcut="execution(* org.zhuc..*.service..*Service.*(..))"
             advice-ref="txAdvice" />
     </aop:config>
     -->

     <!-- =================================================================== -->
     <!-- 数据源2 -->
     <bean id="dataSource2" class="com.alibaba.druid.pool.DruidDataSource"
         init-method="init" destroy-method="close">
         <!-- 基本属性 url、user、password -->
         <property name="url" value="${dataSource2.url}" />
         <property name="username" value="${dataSource2.username}" />
         <property name="password" value="${dataSource2.password}" />
         <property name="connectionProperties" value="${dataSource2.driver}"></property>

         <!-- 配置初始化大小、最小、最大 -->
         <property name="initialSize" value="1" />
         <property name="minIdle" value="1" />
         <property name="maxActive" value="20" />

         <!-- 配置获取连接等待超时的时间 -->
         <property name="maxWait" value="60000" />

         <!-- 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="60000" />

         <!-- 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="300000" />

         <property name="validationQuery" value="SELECT 'x'" />
         <property name="testWhileIdle" value="true" />
         <property name="testOnBorrow" value="false" />
         <property name="testOnReturn" value="false" />

         <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
         <property name="poolPreparedStatements" value="true" />
         <property name="maxPoolPreparedStatementPerConnectionSize"
             value="20" />

         <!-- 配置监控统计拦截的filters -->
         <property name="filters" value="stat" />
     </bean>

     <bean id="sqlSessionFactory2" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource2" />
         <property name="typeAliasesPackage" value="org.zhuc.mybatis.domain2" />
     </bean>

     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory2"/>
         <property name="basePackage" value="org.zhuc.mybatis.mapper2" />
     </bean>

     <bean id="transactionManager2"
         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource2" />
         <qualifier value="insurance" />
     </bean>

     <!-- 全注解方式 -->
     <tx:annotation-driven transaction-manager="transactionManager2" />

 </beans>

 

 

      配置文件内容：

 #数据库连接池设置
 dataSource.driver=com.mysql.jdbc.Driver
 dataSource.url=jdbc:mysql://localhost:3306/dwz
 dataSource.username=root
 dataSource.password=root

 dataSource2.driver=oracle.jdbc.driver.OracleDriver
 dataSource2.url=jdbc:oracle:thin:@192.168.10.43:1521:test
 dataSource2.username=test
 dataSource2.password=test

 

 

      Service类代码：

 package org.zhuc.mybatis.service;

 import org.springframework.transaction.annotation.Transactional;

 /**
  * 基础mysql Service抽象类
  * 使用isap数据源及回滚
  * @author zhuc
  * @create 2013-3-11 下午4:27:33
  */
 @Transactional(value = "isap", rollbackFor = Exception.class)
 public abstract class BaseMySqlService {

 }

 

 package org.zhuc.mybatis.service;

 import java.util.List;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.zhuc.mybatis.domain.User;
 import org.zhuc.mybatis.mapper.UserMapper;

 /**
  * @author zhuc
  * @create 2013-3-11 下午1:19:03
  */
 @Service("userService")
 //@Transactional(value = "isap", rollbackFor = Exception.class)
 public class UserService extends BaseMySqlService {

     @Autowired
     private UserMapper userMapper;

     /**
      * @param id
      * @return
      */
     public User get(Integer id) {
         return userMapper.get(id);
     }

     /**
      * @param id
      * @return
      */
     public User get2(Integer id) {
         return userMapper.get2(id);
     }

     /**
      * @return
      */
     public List<User> findAll() {
         return userMapper.findAll();
     }

     /**
      * @param user
      * @throws Exception
      */
     public void insert(User user) throws Exception {
         userMapper.insert(user);
         throw new Exception("testException");
     }
 }

 

 package org.zhuc.mybatis.service;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.zhuc.mybatis.domain2.Flow;
 import org.zhuc.mybatis.mapper2.FlowMapper;

 /**
  * @author zhuc
  * @create 2013-3-11 下午1:19:03
  */
 @Service("flowService")
 @Transactional(value = "insurance", rollbackFor = Exception.class)
 public class FlowService {

     @Autowired
     private FlowMapper flowMapper;

     /**
      * @param id
      * @return
      */
     public Flow get(String id) {
         return flowMapper.get(id);
     }

 }

 

 

      客户端测试类如下：

 package spring;

 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 import org.zhuc.mybatis.service.FlowService;
 import org.zhuc.mybatis.service.UserService;

 /**
  * @author zhuc
  * @create 2013-3-11 下午1:47:03
  */
 public class MultiTest {

     /**
      * @param args
      * @throws Exception
      */
     public static void main(String[] args) throws Exception {
         ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
         UserService userService = (UserService) ac.getBean("userService");
         System.out.println(userService.get(1));
         System.out.println(userService.get2(1));

         FlowService flowService = (FlowService) ac.getBean("flowService");
         System.out.println(flowService.get("94003d29-a7b0-42f0-839c-fa609b209ff1"));

         //      User user = new User();
         //      user.setId(100);
         //      user.setUserName("admin100");
         //      user.setPassword("password100");
         //      user.setTrueName("小李4");
         //      user.setCreateTime(new Date());
         //
         //      userService.insert(user);   //受事务管理,抛出Exception时将回滚  (rollbackFor)
     }

 }

 

 

      输出结果：

2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper.UserMapper.get - ooo Using Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@f6d64c5]
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper.UserMapper.get - ==>  Preparing: SELECT * from T_USER where id = ? 
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper.UserMapper.get - ==> Parameters: 1(Integer)
User [id=1, userName=userName0, password=password0, roleId=3, trueName=姓名0, createTime=Mon Mar 04 14:17:31 CST 2013, modifyTime=Mon Mar 04 14:17:31 CST 2013]
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper.UserMapper.get2 - ooo Using Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@f6d64c5]
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper.UserMapper.get2 - ==>  Preparing: SELECT * from T_USER where id = ? 
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper.UserMapper.get2 - ==> Parameters: 1(Integer)
User [id=1, userName=userName0, password=password0, roleId=3, trueName=姓名0, createTime=Mon Mar 04 14:17:31 CST 2013, modifyTime=Mon Mar 04 14:17:31 CST 2013]
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper2.FlowMapper.get - ooo Using Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@11742dfe]
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper2.FlowMapper.get - ==>  Preparing: SELECT * from T_FLOW where FLOW_ID = ? 
2013-03-14 11:21:19 [main] DEBUG org.zhuc.mybatis.mapper2.FlowMapper.get - ==> Parameters: 94003d29-a7b0-42f0-839c-fa609b209ff1(String)
Flow [id=94003d29-a7b0-42f0-839c-fa609b209ff1, insuranceId=5a08abc4-463e-436d-b249-9954be487cdd, codeId=14, operatingTime=Mon Jan 21 16:47:12 CST 2013]

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• 2013-03-14 11:26
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4 楼  江_南 2015-05-21    引用

         

3 楼  pizi18 2013-11-19    引用

你好，我也想请教一下，如果每一个service是独立的事务，那要想在一个service里面完成对2个数据库的操作该如何做

2 楼  zhuchengzzcc 2013-03-22    引用

asgab 写道

同一个service修改两个数据库的数据，事务怎么控制？

不是，每一个service是独立的事务，请注意看
@Transactional(value = "insurance", rollbackFor = Exception.class)
@Transactional(value = "isap", rollbackFor = Exception.class)

注解式的事务声明，
对应的insurance代表Oracle，  isap代表Mysql

1 楼  asgab 2013-03-21    引用

同一个service修改两个数据库的数据，事务怎么控制？