JavaWeb_(Spring框架)整合Mybatis加入事务操作数据库

 

 

整合Mybatis
　　a)导包：
　　　　i.Spring：基本包、aop、aspects、jdbc、tx、test；
　　　　ii.Mybatis：mybatis-3.4.6
　　　　iii.整合包：mybatis-spring-1.3.2
　　　　iv.三方包：
　　　　　　1.aopalliance
　　　　　　2.aspectj.weaver
　　　　　　3.c3p0-0.9.5.2
　　　　　　4.mchange-commons-java-0.2.11
　　　　　　5.mysql-connector-java-5.1.46-bin
　　　　　　6.ojdbc7
　　b)创建项目结构(package)：bean、service、mapper、test；
　　c)创建配置文件：sqlMapperConfig、applicaitonContext
　　　　　　2、创建测试用例：使用Mapper扫描开发，转账；
　　　　　　3、在service中加入事务：利用Spring-aop事务解决转账异常问题；

　　

　　未添加事务前

　　

 

package com.Gary.bean;

public class Account {

    private Integer id;
    private String name;
    private Double money;
    
    
    //转账金额
    private Double tranferMoney;
    

    
    public Double getTranferMoney() {
        return tranferMoney;
    }
    public void setTranferMoney(Double tranferMoney) {
        this.tranferMoney = tranferMoney;
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Double getMoney() {
        return money;
    }
    public void setMoney(Double money) {
        this.money = money;
    }
    
    
    
}
Account.java

 

package com.Gary.mapper;

import com.Gary.bean.Account;

//账户mapper接口
public interface AccountMapper {

    //操作数据库扣款和加款
    
    //扣款
    void subMoney(Account pay);
    
    //加款
    void addMoney(Account collect);
    
}
AccountMapper.java

 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  
<mapper namespace="com.Gary.mapper.AccountMapper">
  
    <update id="subMoney" parameterType="Account">
        update account set money = money - #{tranferMoney} where id = #{id}
    </update>
  
      <update id="addMoney" parameterType="Account">
        update account set money = money + #{tranferMoney} where id = #{id}
    </update>
  
</mapper>
AccountMapper.xml

 

package com.Gary.service;

public interface AccountService {

    //转账方法
    void tranferAccount();
    
}
AccountService.java

 

package com.Gary.service;

import javax.annotation.Resource;

import com.Gary.bean.Account;
import com.Gary.mapper.AccountMapper;

public class AccountServiceImpl implements AccountService{

    @Resource(type = AccountMapper.class)
    private AccountMapper mapper;
    
    @Override
    public void tranferAccount() {
        
        Double tranferMoney = 100d;
        
        Account pay = new Account();
        pay.setId(1);
        pay.setTranferMoney(tranferMoney);
        //先扣款
        mapper.subMoney(pay);
        
        Account collect = new Account();
        collect.setId(2);
        collect.setTranferMoney(tranferMoney);
        
        //加款
        mapper.addMoney(collect);
        
    }
    
}
AccountServiceImpl.java

 

package com.Gary.test;

import javax.annotation.Resource;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.Gary.service.AccountService;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class MapperTest {

    @Resource(name = "accountService")
    private AccountService as;
    
    @Test
    public void Test1() {
        as.tranferAccount();
        
    }
    
}
MapperTest.java

 

<?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
        
    <!-- 读取配置文件 -->
    <context:property-placeholder location="db.properties"/>
    
    <!-- 配置 dataSource -->
    <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClass}"/>
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/>
        <property name="user" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    
    <!-- mybatis -->
    <bean name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    </bean>
    
    <!-- mapper工厂 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.Gary.mapper"/>
    </bean>
    
    <!-- service -->
    <bean name="accountService" class="com.Gary.service.AccountServiceImpl">
        
    </bean>
    
    
    
</beans>
applicationContext.xml

 

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_spring
jdbc.user=root
jdbc.password=123456
db.properties

 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
  
  <configuration>
      <typeAliases>
          <package name="com.Gary.bean"/>
      </typeAliases>
  </configuration>
sqlMapConfig

 

 

　　Spring中加入事务　

　　　　a) 配置事务核心管理器: DataSourceTransactionManager；

　　<!-- 需要事务核心管理器 -->
    <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

 

　　　　b) 配置事务通知 tx:Advice；

    <!-- 配置事务通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>
        </tx:attributes>
    </tx:advice>

 

　　　　c) 配置aop；

    <!-- 配置aop -->
    <aop:config>
        <aop:pointcut expression="execution(* com.Gary.service.*ServiceImpl.*(..))" id="txPc"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPc"/>
    </aop:config>

 

<?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
        
    <!-- 读取配置文件 -->
    <context:property-placeholder location="db.properties"/>
    
    <!-- 配置 dataSource -->
    <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClass}"/>
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/>
        <property name="user" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    
    <!-- mybatis -->
    <bean name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    </bean>
    
    <!-- mapper工厂 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.Gary.mapper"/>
    </bean>
    
    <!-- service -->
    <bean name="accountService" class="com.Gary.service.AccountServiceImpl">
    </bean>
    
    
    <!-- 需要事务核心管理器 -->
    <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    
    <!-- 配置事务通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>
        </tx:attributes>
    </tx:advice>
    
    <!-- 配置aop -->
    <aop:config>
        <aop:pointcut expression="execution(* com.Gary.service.*ServiceImpl.*(..))" id="txPc"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPc"/>
    </aop:config>
    
    
</beans>
applicationContext.xml

 

 

package com.Gary.bean;

public class Account {

    private Integer id;
    private String name;
    private Double money;
    
    
    //转账金额
    private Double tranferMoney;
    

    
    public Double getTranferMoney() {
        return tranferMoney;
    }
    public void setTranferMoney(Double tranferMoney) {
        this.tranferMoney = tranferMoney;
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Double getMoney() {
        return money;
    }
    public void setMoney(Double money) {
        this.money = money;
    }
    
    
    
}
Account.java

 

package com.Gary.mapper;

import com.Gary.bean.Account;

//账户mapper接口
public interface AccountMapper {

    //操作数据库扣款和加款
    
    //扣款
    void subMoney(Account pay);
    
    //加款
    void addMoney(Account collect);
    
}
AccountMapper.java

 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  
<mapper namespace="com.Gary.mapper.AccountMapper">
  
    <update id="subMoney" parameterType="Account">
        update account set money = money - #{tranferMoney} where id = #{id}
    </update>
  
      <update id="addMoney" parameterType="Account">
        update account set money = money + #{tranferMoney} where id = #{id}
    </update>
  
</mapper>
AccountMapper.xml

 

package com.Gary.service;

public interface AccountService {

    //转账方法
    void updateTranferAccount();
    
}
AccountService.java

 

package com.Gary.service;

import javax.annotation.Resource;

import com.Gary.bean.Account;
import com.Gary.mapper.AccountMapper;

public class AccountServiceImpl implements AccountService{

    @Resource(type = AccountMapper.class)
    private AccountMapper mapper;
    
    @Override
    public void updateTranferAccount() {
        
        Double tranferMoney = 100d;
        
        Account pay = new Account();
        pay.setId(1);
        pay.setTranferMoney(tranferMoney);
        //先扣款
        mapper.subMoney(pay);
        
        //添加异常
        int i=1/0;
        
        Account collect = new Account();
        collect.setId(2);
        collect.setTranferMoney(tranferMoney);
        
        //加款
        mapper.addMoney(collect);
        
    }

    
}
AccountServiceImpl.java

 

package com.Gary.test;

import javax.annotation.Resource;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.Gary.service.AccountService;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class MapperTest {

    @Resource(name = "accountService")
    private AccountService as;
    
    @Test
    public void Test1() {
        as.updateTranferAccount();
        
    }
    
}
MapperTest.java

 

<?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
        
    <!-- 读取配置文件 -->
    <context:property-placeholder location="db.properties"/>
    
    <!-- 配置 dataSource -->
    <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driverClass}"/>
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/>
        <property name="user" value="${jdbc.user}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    
    <!-- mybatis -->
    <bean name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    </bean>
    
    <!-- mapper工厂 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.Gary.mapper"/>
    </bean>
    
    <!-- service -->
    <bean name="accountService" class="com.Gary.service.AccountServiceImpl">
    </bean>
    
    
    <!-- 需要事务核心管理器 -->
    <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    
    <!-- 配置事务通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>
        </tx:attributes>
    </tx:advice>
    
    <!-- 配置aop -->
    <aop:config>
        <aop:pointcut expression="execution(* com.Gary.service.*ServiceImpl.*(..))" id="txPc"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPc"/>
    </aop:config>
    
    
</beans>
applicationContext.xml

 

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm_spring
jdbc.user=root
jdbc.password=123456
db.properties

 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
  
  <configuration>
      <typeAliases>
          <package name="com.Gary.bean"/>
      </typeAliases>
  </configuration>
sqlMapConfig.xml

 

 

 

 

 

posted @ 2019-12-09 19:53  Cynical丶Gary  阅读(476)  评论(0)  编辑  收藏  举报