PlatformTransactionManager使用异常

最新推荐文章于 2023-10-09 10:25:39 发布

原创最新推荐文章于 2023-10-09 10:25:39 发布 · 9.2k 阅读

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博客讲述使用Maven分出多个功能模块，各模块有自己的service，注入配置及bean运行报错。原因是未指定事务处理器，每个模块有自己的事务配置，单纯用@Transactional无法确定。解决办法是用@Transactional(transactionManager = “当前模块配置的TransactionManager”)指定。

使用了maven分出多个功能模块,每个模块都有自己的service，使用@Configuration
@EnableTransactionManagement
@EnableJpaRepositories
注入配置及bean，运行时报错

org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.transaction.PlatformTransactionManager' available: expected single matching bean but found 2: systemTransactionManager,dataTransactionManager
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1140)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveBean(DefaultListableBeanFactory.java:407)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:341)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:335)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.determineTransactionManager(TransactionAspectSupport.java:394)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:284)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
	at

发现是没有指定事务处理器，因为每个模块都有自己的事务配置
单纯地用@Transactional 没法确定是哪个事务处理
需要用
@Transactional(transactionManager = “当前模块配置的TransactionManager”)
指定即可
这里注意

    import org.springframework.transaction.annotation.Transactional;