Spring之事务操作（配置文件）

UserDao.java

 package helloworld.tx;

 import org.springframework.jdbc.core.JdbcTemplate;

 public class UserDao {

     private JdbcTemplate jdbcTemplate;

     public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
         this.jdbcTemplate = jdbcTemplate;
     }

     //    实现添加操作
     public void add() {
         // 调用jdbcTemplate对象中的方法实现操作
         String sql = "insert into salary value(?,?)";
         // 表结构：name(varchar 20),salary(int 20)
         int rows = jdbcTemplate.update(sql, "Tom", 10000);
         System.out.println("插入行数：" + rows);
         rows = jdbcTemplate.update(sql, "Jerry", 10000);
         System.out.println("插入行数：" + rows);
     }

     //    减少
     public void reduce(String name,int num) {
         // 调用jdbcTemplate对象中的方法实现操作
         String sql = "update salary set salary = (salary - ?) where name= ?";
         // 表结构：name(varchar 20),salary(int 20)
         int rows = jdbcTemplate.update(sql, num, name);
         System.out.println("修改行数：" + rows);
     }

     //    增加
     public void increase(String name,int num) {
         // 调用jdbcTemplate对象中的方法实现操作
         String sql = "update salary set salary = (salary + ?) where name= ?";
         // 表结构：name(varchar 20),salary(int 20)
         int rows = jdbcTemplate.update(sql, num, name);
         System.out.println("修改行数：" + rows);
     }

 }

UserSerivce.java

 package helloworld.tx;

 public class UserSerivce {
     private UserDao userDao;

     public void setUserDao(UserDao userDao) {
         this.userDao = userDao;
     }

     public void add(){
         userDao.add();
     }

 //    工资调整
     public void updateAccount(){

         userDao.reduce("Tom",1000);

 //        制造异常
 //        int n = 100/0;

         userDao.increase("Jerry",1000);

     }

 }

TestTX.java

 package helloworld.tx;

 import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;

 /*
 * 事务操作举例
 * */
 public class TestTX {
     @Before
     public void beforeRun() {
         System.out.println("beforeRun");
     }

 //    插入数据
     @Ignore
     @Test
     public void add() {
         ApplicationContext context =
                 new ClassPathXmlApplicationContext("beans_tx.xml");
         UserSerivce userSerivce = (UserSerivce) context.getBean("userSerivce");
         userSerivce.add();
     }

     @Test
     public void update() {
         ApplicationContext context =
                 new ClassPathXmlApplicationContext("beans_tx.xml");
         UserSerivce userSerivce = (UserSerivce) context.getBean("userSerivce");
         userSerivce.updateAccount();
     }

 }

beans_tx.xml

 <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:contexnt="http://www.springframework.org/schema/context"
        xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context-2.5.xsd
         http://www.springframework.org/schema/tx
         http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
 <!--事务配置文件-->

     <!--配置c3p0连接池-->
     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
         <!--注入属性-->
         <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
         <property name="jdbcUrl" value="jdbc:mysql://192.168.184.130:3306/gxrdb"></property>
         <property name="user" value="root"></property>
         <property name="password" value="root"></property>
     </bean>

     <!-- 第一步、配置事务管理器 -->
     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource"/>
     </bean>
     <!-- 第二步、配置事务增强 -->
     <tx:advice id="txAdvice" transaction-manager="transactionManager">
         <!--做事务操作-->
         <tx:attributes>
             <!--事务操作的方法的匹配规则-->
             <!--name：方法名；propagation：隔离级别-->
             <tx:method name="update*" propagation="REQUIRED"/>
             <tx:method name="add"/>
         </tx:attributes>
     </tx:advice>
     <!-- 第三步、配置切面-->
     <aop:config>
         <!--切入点-->
         <!-- *表示任意方法；..表示任意参数-->
         <aop:pointcut id="pointcut1" expression="execution(* helloworld.tx.UserSerivce.*(..))"></aop:pointcut>
         <!--切面-->
         <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut1"></aop:advisor>
     </aop:config>

     <!--创建service对象，注入dao对象-->
     <bean id="userSerivce" class="helloworld.tx.UserSerivce">
         <property name="userDao" ref="userDao"></property>
     </bean>

     <!--创建DAO对象，注入JdbcTemplate对象-->
     <bean id="userDao" class="helloworld.tx.UserDao">
         <property name="jdbcTemplate" ref="jdbcTemplate"></property>
     </bean>

     <!--创建JdbcTemplate对象，注入连接池dataSource-->
     <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
         <property name="dataSource" ref="dataSource"></property>
     </bean>

 </beans>