在mysql中进行事务操作

1、使用C3p0在mysql进行事务操作

 1 /**
 2      * 事务测试
 3      */
 4     public void TestTran() {
 5         Connection connection = null;
 6         try {
 7             QueryRunner queryRunner  = new QueryRunner();
 8             connection = C3p0PoolBase.getConnection();
 9             connection.setAutoCommit(false);
10             String sql01 = "update test set type = 'E' where id = 843";
11             Object params01[] = {};
12             int i = queryRunner.update(connection,sql01,params01);
13 
14             String sql02 = "update test set type = 'F' where id = 842";
15             Object params02[] = {};
16             int j = queryRunner.update(connection,sql02,params02);
17 
18             //throw new SQLException("error");//模拟异常
19             
20         } catch (SQLException e) {
21             try {
22                 connection.rollback();
23             } catch (SQLException e1) {
24                 logger.error(e1.getMessage());
25                 //e1.printStackTrace();
26             }
27             logger.error(e.getMessage());
28             //e.printStackTrace();
29         }finally {
30             try {
31                 //不管成功 失败 都提交
32                 connection.commit();
33                 //关闭连接
34                 DbUtils.closeQuietly(connection);
35             } catch (SQLException e) {
36                 logger.error(e.getMessage());
37                 //e.printStackTrace();
38             }
39         }
40     }

2、使用spring boot 、mybatis在mysql中进行事务操作

 1 @EnableTransactionManagement
 2 @MapperScan("com.test.*.mapper")
 3 public class TestApplication
 4 {
 5     public static void main(String[] args)
 6     {
 7         SpringApplication.run(TestApplication.class, args);
 8         System.out.println("系统启动成功 \n");
 9     }
10 }

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE mapper
 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 5 <mapper namespace="com.test.system.mapper.SysTestMapper">
 6     
 7      <update id="updateMoneyIn">
 8           update sys_test 
 9         set balance = balance + #{money}
10         where id= #{id,jdbcType=INTEGER}
11     </update>
12      
13     <update id="updateMoneyOut">
14           update sys_test 
15         set balance = balance - #{money}
16         where id= #{id,jdbcType=INTEGER}
17     </update>
18 </mapper> 

 1 package com.test.system.service;
 2 
 3 /**
 4  * 接口
 5  * 
 6  * @author 
 7  */
 8 public interface ISysTestService
 9 {
10     public int TestTrans();
11 }

 1 package com.test.system.service.impl;
 2 
 3 import org.springframework.beans.factory.annotation.Autowired;
 4 import org.springframework.stereotype.Service;
 5 import org.springframework.transaction.annotation.Transactional;
 6 import com.test.system.mapper.SysTestMapper;
 7 import com.test.system.service.ISysTestService;
 8 
 9 /**
10  * 实现类
11  * 
12  * @author
13  */
14 @Service
15 public class SysTestServiceImpl implements ISysTestService
16 {
17     @Autowired
18     private SysTestMapper testMapper;
19 
20     @Override
21     @Transactional
22     public int TestTrans()
23     {
24         int rows = 0;
25         rows = testMapper.updateMoneyIn(1, 100);
26         //int i = 1/0;  // 抛出异常
27         rows = testMapper.updateMoneyOut(2, 100);
28         
29         return rows;
30     }
31 }

 1 package com.test.system.mapper;
 2 
 3 import org.apache.ibatis.annotations.Param;
 4 
 5 /**
 6  * 映射接口
 7  * 
 8  * @author
 9  */
10 public interface SysTestMapper
11 {
12     public int updateMoneyIn(@Param("id") int id, @Param("money")float money);
13 
14     public int updateMoneyOut(@Param("id") int id, @Param("money")float money);
15 
16 }