@ManagedBean和@Transactional-Spring中的bug?解决方法?

问题描述

我的Webapp中有以下JSF支持bean

I had the following JSF backing bean in my Webapp

@ManagedBean
class MyBackingBean implements Serializable {

    private MyHibernateRepository repository;
    ...

    @Transactional
    public void save() {
        ....
        repository.save(myObject);
    }

}

在调用repository.save方法时-出现以下错误

When it gets to the repository.save method call - I get the following error

no transaction is in progress

我有两个问题

1. 这是否是由于这样的错误引起的?
2. 我相信有两种解决方法-还有其他解决方法吗?

1. Is this because of a bug like this?
2. I believe there are two workarounds - are there any others?

2.1第一种解决方法-使用

2.1 First workaround - using

transactionTemplate.execute(new TransactionCallbackWithoutResult() {
  protected void doInTransactionWithoutResult(TransactionStatus status) {
    repository.save(myObject);
  }
});

2.2第二种解决方法

2.2 Second workaround

创建一个帮助器类并对其进行注释.

Create a helper class and annotate that instead.

2.3(第三个可能的解决方法是在内部类的方法上注释@Transactional，这与2.2非常相似).

2.3 (A possible third workaround would be to annotate @Transactional on a method of an inner class This is quite similar to 2.2).

推荐答案

在使用Spring注释时(我知道@Transactional是Sun标准-但您需要实现)-Spring使用AOP对该类进行注释以添加交易处理代码.这仅适用于Spring bean.如果您的类是JSF的支持bean，则Mojarra框架不会在此注释中插入其自己的事务处理代码.

When using Spring annotations (I know that @Transactional is a Sun standard - but you need an implementation) - Spring uses AOP to annotate to the class to add the transaction handling code. This only works for Spring beans. If your class is a backing bean for JSF - the Mojarra framework won't insert its own transaction handling code to this annotation.

简短答案-@Transactional适用于Spring加载的bean.否则，您需要找到一个支持它的框架，或者假定它不起作用.

Short answer - @Transactional works for beans loaded by Spring. Otherwise you need to find a framework that supports it or assume it won't work.

这篇关于@ManagedBean和@Transactional-Spring中的bug?解决方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！