使用spring4 @Transactional时事务不起作用

Question

使用 spring4 @Transactional 和 jdbctemplate 时事务不起作用！！请帮帮我

应用程序.xml

 <context:component-scan base-package="com.test" />

<bean id="txtManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource" />
</bean>

<bean class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource" ref="dataSource"/>
</bean>

<tx:annotation-driven transaction-manager="txtManager"   proxy-target-class="true"/>

java代码

package com.test;

 @Component

public class TService {

@Autowired JdbcTemplate jdbcTemplate;

@Transactional(rollbackFor = Exception.class)
public void tt() throws Exception{

        jdbcTemplate.update("insert into t_test values(1)");
        jdbcTemplate.update("insert into t_test(dd) values(1)");

    }

}

控制器代码

    @Controller("")
public class Tcontroller {

    @Autowired TService ts; 

    @RequestMapping(value = "/test", method = RequestMethod.GET)
    public @ResponseBody Object all() throws Exception {
        ts.tt();
        return "";
    }

}

tt() 抛出异常，但 Transaction 没有回滚！

今天找到了这个

[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:833) - Unable to apply any optimisations to advised method: public void com.test.TService.tt() throws java.lang.Exception
[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:797) - Found 'equals' method: public boolean java.lang.Object.equals(java.lang.Object)
[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:833) - Unable to apply any optimisations to advised method: public java.lang.String java.lang.Object.toString()
[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:802) - Found 'hashCode' method: public native int java.lang.Object.hashCode()
[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:833) - Unable to apply any optimisations to advised method: protected native java.lang.Object java.lang.Object.clone() throws java.lang.CloneNotSupportedException
[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:791) - Method is declared on Advised interface: public abstract int org.springframework.aop.framework.Advised.indexOf(org.springframework.aop.Advisor)
[DEBUG] 23:36:19,729 org.springframework.aop.framework.CglibAopProxy (accept:791) - Method is declared on Advised interface: public abstract int org.springframework.aop.framework.Advised.indexOf(org.aopalliance.aop.Advice)

代理创建失败？

Answer 1

当我在测试中抛出 null 时，我遇到了同样的问题。它似乎是 @Transaction 仅适用于 RuntimeException 的实例或子类。

哪个例外不是。

Answer 2

如果事务遇到未经检查的运行时异常，它总是会回滚。您的问题可能是由于您捕获了异常然后重新抛出它。完全没必要做这种事。

Section 16.5.3：在其默认配置中，Spring 框架的事务 基础设施代码仅在情况下标记事务以进行回滚 运行时，未经检查的异常；也就是当抛出异常 是 RuntimeException 的实例或子类。 （错误也会 - 默认情况下 - 导致回滚）。抛出的检查异常 来自事务方法不会导致默认回滚 配置。

阅读official doc。