Question

我使用下面的代码来测试我的异步实现。（参考另一篇SO帖子https://stackoverflow.com/a/20807233/1989988）

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration
public class MyAsyncClassTest {

    @Configuration
    @EnableAsync
    static class Config {
        @Bean
        public MyAsyncClass myAsyncClass() {
            Parameter1 param1 = new Parameter1();
            Parameter2 param2 = new Parameter2();
            return new MyAsyncClass(param1, param2);
        }
    }

    @Autowired
    private MyAsyncClass myAsyncClass;

    @Test
    public void test() throws Exception {
        myAsyncClass    //it has param1 and param2 set as null
                        //if @EnableAsync is removed, then param1 and param2 are set but async call is not working
    }

编辑：＆＃34;这里MyAsyncClass是一个有一些使用Spring的@Async注释注释的方法的类。＆＃34;
正如代码注释中所提到的，在使用null注释时，我在测试方法中将类级别字段设置为@EnableAsync，并且在调试时显示了很多cglib$Callback个字段。

修改
主类：

 @Component
public class MyAsyncClass {
    private final Param1 param1;
    private final Param2 param2;

    @Autowired
    public MyAsyncClass(final Param1 param1, final Param2 param2) {
        this.param1 = param1;
        this.param2 = param2;
    }

    @Async
    public Future<T> performAction() {
        String result = param1.getDefaultName() + param2.getDefaultName();
        return new AsyncResult<String>(result);
    }
    @Async
    public Future<String> performAnotherAction() {
        String result = param1.getDefaultName() + param2.getDefaultName();
        return new AsyncResult<String>(result);
    }   
}

类Param1和Param2：

@Component
public class Param1 {
    public String getDefaultName() {
        return "Param1";
    }
}

@Component
public class Param2 {
    public String getDefaultName() {
        return "Param2";
    }
}

在Java中使用@EnableAsync Spring注释将类级别实例设置为null

0 个答案: