AspectJ声明式事务配置-白红宇

AspectJ声明式事务配置

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发布时间：2019-06-24

本文共 6317 字，大约阅读时间需要 21 分钟。

Spring声明式事务配置,实现模拟转账过程（AspectJ）

编程式事务要修改service层的代码，很少用，相比之下，AspectJ增强事务管理器，在xml中配置切面切点（AOP），而service代码不用做修改。

1.新建数据表

DROP TABLE IF EXISTS `account`;CREATE TABLE `account` (  `id` int(11) NOT NULL AUTO_INCREMENT,  `name` varchar(20) NOT NULL,  `money` double unsigned zerofill DEFAULT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;INSERT INTO `account` VALUES ('1', 'aa', '1000');INSERT INTO `account` VALUES ('2', 'bb', '1000');INSERT INTO `account` VALUES ('3', 'cc', '1000');

2.新建项目，引入jar包


    			
     
      org.apache.commons
     			
     
      commons-lang3
     			
     
      3.4
     		
    		
    			
     
      log4j
     			
     
      log4j
     			
     
      1.2.17
     		
                         
    			
     
      junit
     			
     
      junit
     			
     
      4.12
     			
     
      test
     		
    		
    		
    			
     
      mysql
     			
     
      mysql-connector-java
     			
     
      5.1.6
     		
                          
    		
    			
     
      org.springframework
     			
     
      spring-context
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-core
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-beans
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-expression
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-jdbc
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-tx
     			
     
      4.2.0.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-test
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-aop
     			
     
      4.2.1.RELEASE
     		
    		
    			
     
      org.springframework
     			
     
      spring-aspects
     			
     
      4.2.1.RELEASE
     		
    		
    		
    		
    			
     
      c3p0
     			
     
      c3p0
     			
     
      0.9.1.2

3.log4.properties

#console loglog4j.appender.CONSOLE=org.apache.log4j.ConsoleAppenderlog4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayoutlog4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [%t] %-5p %c - %m%n#all loglog4j.appender.DAILY_ALL=org.apache.log4j.DailyRollingFileAppenderlog4j.appender.DAILY_ALL.layout=org.apache.log4j.PatternLayoutlog4j.appender.DAILY_ALL.layout.ConversionPattern="%p %d{yyyy-MM-dd HH:mm:ss} %-50.50c(%L) - %m%nlog4j.appender.DAILY_ALL.File=d:/myjaval.loglog4j.appender.DAILY_ALL.DatePattern='.'yyyy-MM-dd#logger#log4j.logger.org.springframework=INFO,CONSOLE#log4j.logger.org.hibernate=INFO,CONSOLE#log4j.logger.org.apache=INFO,CONSOLElog4j.rootLogger=INFO,CONSOLE,DAILY_ALL

4.jdbc.properties

jdbc_driverClassName=com.mysql.jdbc.Driverjdbc_url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8jdbc_username=rootjdbc_password=root

5.applicationContext.xml


     
         
         
       
       
              
                   
                        
         
          classpath:jdbc.properties

6.DAO以及实现

package cn.dx.spring.transaction2.dao;public interface AccountDao {		/**	 * @param out 转出账户	 * @param money 转出金额	 */	void outMoney(String out,Double money);		/**	 * @param in	:传入账号	 * @param money ：转入金额	 */	void inMoney(String in,Double money);}

package cn.dx.spring.transaction2.dao.impl;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Component;import cn.dx.spring.transaction2.dao.AccountDao;@Component("AccountDao")public class AccountDaoImpl implements AccountDao {	@Autowired	private JdbcTemplate jdbcTemplate; 		@Override	public void outMoney(String out, Double money) {		String sql = "update account set money = money - ? where name = ?";		this.jdbcTemplate.update(sql,money,out);	}	@Override	public void inMoney(String in, Double money) {		String sql = "update account set money = money + ? where name = ?";		this.jdbcTemplate.update(sql,money,in);	}}

7.service以及实现

package cn.dx.spring.transaction2.service;/** * 转账Service * @author 大雄 * */public interface AccountService {		/**	 * 	 * @param out:转出账户	 * @param in：转入账户	 * @param money：转账金额	 */	void transfer(String out,String in,Double money);	}

package cn.dx.spring.transaction2.service.impl;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.stereotype.Service;import cn.dx.spring.transaction2.dao.AccountDao;import cn.dx.spring.transaction2.service.AccountService;@Service("AccountService")public class AccountServiceImpl implements AccountService {	@Autowired	@Qualifier("AccountDao")	private AccountDao accountDao;		@Override	public void transfer(final String out,final String in,final Double money) {				accountDao.outMoney(out, money);		int i = 1/0;	    accountDao.inMoney(in, money);			}}

8.测试

package cn.dx.myjava.spring.transaction;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import cn.dx.spring.transaction.service.AccountService;/** * 编程式事务管理 * 转账测试 * @author 大雄 * */@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("classpath:applicationContext.xml")public class Transtraction {	//测试业务层的类	@Autowired	@Qualifier("AccountService")	private AccountService accountService;		@Test	public void  transaction(){		this.accountService.transfer("aa", "bb", 200d);	}	}