@PostConstruct方法上的@Transactional

问题描述

我想在应用程序的开头阅读文本数据夹具(CSV文件)，并将其放入数据库中.

I want to read text data fixtures (CSV files) at the start on my application and put it in my database.

为此，我用初始化方法( @PostConstruct 批注)创建了一个 PopulationService .

For that, I have created a PopulationService with an initialization method (@PostConstruct annotation).

我还希望它们在单个事务中执行，因此我在同一方法上添加了 @Transactional .

I also want them to be executed in a single transaction, and hence I added @Transactional on the same method.

但是， @Transactional 似乎被忽略了:在我的底层DAO方法中开始/停止了事务.

However, the @Transactional seems to be ignored :The transaction is started / stopped at my low level DAO methods.

然后我需要手动管理交易吗?

Do I need to manage the transaction manually then ?

推荐答案

这可能会有所帮助():

this might be helpful (http://forum.springsource.org/showthread.php?58337-No-transaction-in-transactional-service-called-from-PostConstruct):

因此，如果您希望在事务中执行@PostConstruct中的某些内容，则必须执行以下操作:

So if you would like something in your @PostConstruct to be executed within transaction you have to do something like this:

@Service("something")
public class Something {

    @Autowired
    @Qualifier("transactionManager")
    protected PlatformTransactionManager txManager;

    @PostConstruct
    private void init(){
        TransactionTemplate tmpl = new TransactionTemplate(txManager);
        tmpl.execute(new TransactionCallbackWithoutResult() {
            @Override
            protected void doInTransactionWithoutResult(TransactionStatus status) {
                //PUT YOUR CALL TO SERVICE HERE
            }
        });
   }
}

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