Spring中的注解版事务

系统管理员 2021-09-19 02:32 294阅读 0赞

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70][]

Account.java:

package com.sikiedu.bean;
    
    public class Account {
    	private Integer id;
    	private String username;
    	private Double money;
    	public Integer getId() {
    		return id;
    	}
    	public void setId(Integer id) {
    		this.id = id;
    	}
    	public String getUsername() {
    		return username;
    	}
    	public void setUsername(String username) {
    		this.username = username;
    	}
    	public Double getMoney() {
    		return money;
    	}
    	public void setMoney(Double money) {
    		this.money = money;
    	}
    	@Override
    	public String toString() {
    		return "Account [id=" + id + ", username=" + username + ", money=" + money + "]";
    	}
    	
    }

AccountDao.java:

package com.sikiedu.dao;
    
    public interface AccountDao {
    
    	void subMoney(Integer id, Double money);
    
    	void addMoney(Integer id, Double money);
    
    }

AccountDaolmpl.java:

package com.sikiedu.dao;
    
    import org.springframework.jdbc.core.support.JdbcDaoSupport;
    
    import com.sikiedu.service.AccountService;
    
    
    public class AccountDaolmpl extends JdbcDaoSupport implements AccountDao {
    
    	@Override
    	public void subMoney(Integer id, Double money) {
    		String sql="update user set money=money-? where id =?";
    		getJdbcTemplate().update(sql,money,id);
    	}
    
    	@Override
    	public void addMoney(Integer id, Double money) {
    		String sql="update user set money=money+? where id =?";
    		getJdbcTemplate().update(sql,money,id);
    	}
    
    
    
    }

AccountService.java:

package com.sikiedu.service;
    
    public interface AccountService {
    	
    	//转账接口
    	void transferAccounts();
    }

AccountServicelmpl.java:

package com.sikiedu.service;
    
    import org.springframework.transaction.annotation.Isolation;
    import org.springframework.transaction.annotation.Propagation;
    import org.springframework.transaction.annotation.Transactional;
    
    import com.sikiedu.dao.AccountDao;
    
    public class AccountServicelmpl implements AccountService {
    
    	private AccountDao ad;
    	
    	public void setAd(AccountDao ad) {
    		this.ad = ad;
    	}
    
    	@Override
    	@Transactional(isolation=Isolation.DEFAULT,propagation=Propagation.REQUIRED,readOnly=false)
    	public void transferAccounts() {
    		ad.subMoney(1,100d);
    
    //		int a=1/0;
    		ad.addMoney(2,100d);
    	}
    
    }

test2.java:

package com.sikiedu.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.sikiedu.service.AccountService;
    
    @RunWith(SpringJUnit4ClassRunner.class)
    @ContextConfiguration("classpath:applicationContext2.xml")
    public class test2 {
    	@Resource(name="accountService")
    	private AccountService as;
    	@Test
    	public void test1(){
    		as.transferAccounts();
    	}
    }

applicationContext2.xml:

![20190426141649161.png][]    ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70 2][]

<?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: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-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">
    	
    	<context:property-placeholder location="db.properties"/>
    	
    
    	<bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    		<property name="driverClass" value="${jdbc.driverClass}"></property>
    		<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
    		<property name="user" value="${jdbc.user}"></property>
    		 
    		<property name="password" value="${jdbc.password}"></property>
    	</bean>
    	<bean name="accountDao" class="com.sikiedu.dao.AccountDaolmpl">
    		<property name="dataSource" ref="dataSource"></property>
    	</bean>
    	<bean name="accountService" class="com.sikiedu.service.AccountServicelmpl">
    		<property name="ad" ref="accountDao"></property>
    	</bean>
    
    
    	<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    		<property name="dataSource" ref="dataSource"></property>
    	</bean>
    	
    
    	<tx:annotation-driven/>
    	
    </beans>

db.properties:

jdbc.driverClass=com.mysql.jdbc.Driver
    jdbc.jdbcUrl=jdbc:mysql://localhost:3306/web01
    jdbc.user=root
    jdbc.password=root

MySQL数据库：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70 3][]

”

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70]: /images/20210725/4607c06f2ea74e7388cca6671fb44244.png
[20190426141649161.png]: https://img-blog.csdnimg.cn/20190426141649161.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70 1]: /images/20210725/645eab3b93604dab9d8da5ade194f097.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70 2]: /images/20210725/e0916fc743f44335b338ba16815a4a6f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMzIzMjU2_size_16_color_FFFFFF_t_70 3]: /images/20210725/4da671e6af5e43ce905b873dd9ce2f2a.png