服务内部的Spring @Async方法 [英] Spring @Async method inside a Service

问题描述

我有一个带有同步方法的Service Bean，该同步方法调用了内部异步方法:

I have this Service bean with a sync method calling an internal async method:

@Service
public class MyService {

    public worker(){
        asyncJob();
    }

    @Async
    asyncJob(){
        ...
    }

}

麻烦的是asyncJob并不是真的以异步方式调用. 我发现这不起作用，因为内部呼叫会跳过 AOP代理.

The trouble is that the asyncJob is not really call in async way. I found that this doesn't work because an internal call skips the AOP proxy.

所以我尝试自我介绍:

@Service
public class MyService {

    MyService mySelf;
    @Autowired
    ApplicationContext cnt;
    @PostConstruct
    public init(){
        mySelf=(MyService)cnt.getBean("myService");
    }


    public worker(){
        mySelf.asyncJob();
    }

    @Async
    asyncJob(){
        ...
    }

}

失败.再次没有异步调用.

It fails. Again no async call.

所以我尝试将其划分为两个豆:

@Service
public class MyService {
    @Autowired
    MyAsyncService myAsyncService;
    public worker(){
        myAsyncService.asyncJob();
    }
}

@Service
public class MyAsyncService {

    @Async
    asyncJob(){
        ...
    }

}

再次失败.

唯一的工作方法是从 Controller Bean 调用它:

The only working way is to call it from a Controller Bean:

@Controller
public class MyController {
    @Autowired
    MyAsyncService myAsyncService;
    @RequestMapping("/test")
    public worker(){
        myAsyncService.asyncJob();
    }
}

@Service
public class MyAsyncService {

    @Async
    public asyncJob(){
        ...
    }

}

但是在这种情况下，这是一项服务工作……为什么我不能从服务中调用它?

But in this case it is a service job... why I can not call it from a Service?

推荐答案

我解决了第三个方法(将其分为两个bean)，将异步方法修改器切换为 public

I solved the third method (divide it in two beans) switching Async method modifier to public

@Service
public class MyService {
    @Autowired
    MyAsyncService myAsyncService;
    public worker(){
        myAsyncService.asyncJob();
    }
}

@Service
public class MyAsyncService {

    @Async
    public asyncJob(){ // switched to public
        ...
    }

}

这篇关于服务内部的Spring @Async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IT屋！