大型运输行业实战_day10_1_自定义事务管理类

1.创建事务管理类  TransactionManager.java

 package com.day02.sation.transaction;

 import com.day02.sation.util.JdbcUtil;

 import java.sql.SQLException;

 /**
  * Created by Administrator on 1/8.
  */
 public class TransactionManager {
     /**
      * 关闭事务自动提交
      */
     public void before1() {
         System.out.println("-----before-----");
         try {
             JdbcUtil.getConnection().setAutoCommit(false);
         } catch (SQLException e) {
             e.printStackTrace();
         }
     }

     /**
      * 手动提交事务
      */
     public void after2() {
         System.out.println("-----after-----");
         try {
             JdbcUtil.getConnection().commit();
         } catch (SQLException e) {
             e.printStackTrace();
         }
     }

     /**
      * 事务回滚
      */
     public void rollback() {
         System.out.println("-----rollback-----");
         try {
             JdbcUtil.getConnection().rollback();
         } catch (SQLException e) {
             e.printStackTrace();
         }
     }
 }

2.创建配置文件

 <?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"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/aop
          http://www.springframework.org/schema/aop/spring-aop.xsd">
     <!--需要被管理的业务类-->
     <bean id="ticket3Service" class="com.day02.sation.transaction.Ticket3Service"/>
     <!--事务管理器-->
     <bean id="txManager" class="com.day02.sation.transaction.TransactionManager"/>
    <!-- aop配置-->
     <aop:config>
       <!--  配置切面-->
         <aop:aspect ref="txManager">
             <!--地点:方法-->
             <aop:pointcut id="txPoint" expression=" execution(* com.day02.sation.transaction.*Service.*(..) )"/>
             <!--时间-->
           <!--  方法执行前-->
             <aop:before method="before1" pointcut-ref="txPoint"/>
             <!--方法执行后-->
             <aop:after-returning method="after2" pointcut-ref="txPoint"/>
             <!--抛出异常时-->
             <aop:after-throwing method="rollback" pointcut-ref="txPoint"/>
         </aop:aspect>
     </aop:config>
 </beans>

3.需要被管理的业务类 Ticket3Service.java

 package com.day02.sation.transaction;

 import com.day02.sation.util.JdbcUtil;

 import java.sql.Connection;
 import java.sql.Statement;

 /**
  * Created by Administrator on 1/8.
  */
 public class Ticket3Service {
     public void buyTicket() throws Exception {
         Connection connection = JdbcUtil.getConnection();
         Statement statement = connection.createStatement();
         //关闭自动提交数据
         String sql = " UPDATE ticket SET standby=14  WHERE id=3 ";
         int i = statement.executeUpdate(sql);
         System.out.println("===" + (1 / 0));
         //新增订单
         String sql2 = "INSERT INTO ticket_order (order_number,user_id,ticket_id) VALUES ('105',1,3)";
         statement.executeUpdate(sql2);
     }
 }

4.测试方法

 package com.day02.sation.test;

 import com.day02.sation.transaction.Ticket3Service;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

 /**
  * Created by Administrator on 12/27.
  */
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration("classpath:spring/spring-myaop.xml")
 public class TestTransaction {
     @Autowired
     private Ticket3Service ticket3Service;

     @Test
     public void testGetList() {
         try {
             ticket3Service.buyTicket();

         } catch (Exception e) {
             e.printStackTrace();
         }
     }
 }

5.使用到的jdbc工具类

 package com.day02.sation.util;

 import java.sql.Connection;
 import java.sql.DriverManager;

 /**
  * Created by Administrator on 1/8.
  */
 public class JdbcUtil {
     private static Connection connection = null;

     static {
         try {
             Class.forName("com.mysql.jdbc.Driver");
             connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/station", "root", "admin");
         } catch (Exception e) {
             e.printStackTrace();
         }

     }

     public static Connection getConnection() {

         return connection;
     }
 }

完成测试吧!