Spring如何基于xml实现声明式事务控制

2023-07-14 07:29:03 181

一、pom.xml



4.0.0

org.example
A02spring
1.0-SNAPSHOT




org.springframework
spring-context
5.2.8.RELEASE



org.springframework
spring-jdbc
5.2.8.RELEASE



org.springframework
spring-tx
5.2.8.RELEASE



org.aspectj
aspectjweaver
1.9.6



mysql
mysql-connector-java
8.0.11



org.projectlombok
lombok
1.18.12
provided



org.springframework
spring-test
5.2.8.RELEASE
test



junit
junit
4.13
test






org.apache.maven.plugins
maven-compiler-plugin

1.8
1.8

二、spring的xml配置文件

三、实体类

packagecom.wuxi.beans;

importlombok.Data;

importjava.io.Serializable;

@Data
publicclassAccountimplementsSerializable{
privateIntegerid;
privateStringname;
privateFloatmoney;
}

四、dao

1、接口

packagecom.wuxi.daos;
importcom.wuxi.beans.Account;
publicinterfaceAccountDao{
AccountfindAccountById(IntegeraccountId);
AccountfindAccountByName(StringaccountName);
voidupdateAccount(Accountaccount);
}

2、实现类

packagecom.wuxi.daos.impl;

importcom.wuxi.beans.Account;
importcom.wuxi.daos.AccountDao;
importorg.springframework.jdbc.core.BeanPropertyRowMapper;
importorg.springframework.jdbc.core.support.JdbcDaoSupport;

importjava.util.List;

publicclassAccountDaoImplextendsJdbcDaoSupportimplementsAccountDao{
@Override
publicAccountfindAccountById(IntegeraccountId){
Listaccounts=getJdbcTemplate().query("select*fromaccountwhereid=?",newBeanPropertyRowMapper(Account.class),accountId);
returnaccounts.isEmpty()?null:accounts.get(0);
}

@Override
publicAccountfindAccountByName(StringaccountName){
Listaccounts=getJdbcTemplate().query("select*fromaccountwherename=?",newBeanPropertyRowMapper(Account.class),accountName);
if(accounts.isEmpty()){
returnnull;
}
if(accounts.size()>1){
thrownewRuntimeException("结果集不唯一");
}
returnaccounts.get(0);
}

@Override
publicvoidupdateAccount(Accountaccount){
getJdbcTemplate().update("updateaccountsetname=?,money=?whereid=?",account.getName(),account.getMoney(),account.getId());
}
}

五、service

1、接口

packagecom.wuxi.services;
importcom.wuxi.beans.Account;
publicinterfaceAccountService{
AccountfindAccounById(IntegeraccountId);
voidtransfer(StringsourceName,StringtargetName,Floatmoney);
}

2、实现类

packagecom.wuxi.services.impl;

importcom.wuxi.beans.Account;
importcom.wuxi.daos.AccountDao;
importcom.wuxi.services.AccountService;

publicclassAccountServiceImplimplementsAccountService{
privateAccountDaoaccountDao;

publicvoidsetAccountDao(AccountDaoaccountDao){
this.accountDao=accountDao;
}

@Override
publicAccountfindAccounById(IntegeraccountId){
returnaccountDao.findAccountById(accountId);
}

@Override
publicvoidtransfer(StringsourceName,StringtargetName,Floatmoney){
Accountsource=accountDao.findAccountByName(sourceName);
Accounttarget=accountDao.findAccountByName(targetName);

source.setMoney(source.getMoney()-money);
target.setMoney(target.getMoney()+money);

accountDao.updateAccount(source);
inti=1/0;
accountDao.updateAccount(target);
}
}

六、测试

packagecom.wuxi.tests;

importcom.wuxi.services.AccountService;
importorg.junit.Test;
importorg.junit.runner.RunWith;
importorg.springframework.beans.factory.annotation.Autowired;
importorg.springframework.test.context.ContextConfiguration;
importorg.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath:application.xml")
publicclassMySpringTest{

@Autowired
privateAccountServiceas;

@Test
publicvoidtestTransfer(){
as.transfer("aaa","bbb",100f);
}
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

Spring如何基于xml实现声明式事务控制

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