spring @Async无法调用类内方法

    
类内方法相互调用不会异步处理

@RequestMapping(value = "/totalQuery.json")
    public SearchResult totalQuery(){
        
        System.out.println("totalQuery: " + Thread.currentThread().getId());
        orderService.test();
        return null;
    }

private static String string = "";

@Override
@Async
public void test() {
    test1();
    string = string + "test:" + Thread.currentThread().getId();
    System.out.println(string);
}

@Override
@Async
public void test1() {
    string = string + "test1:" + Thread.currentThread().getId();
    System.out.println(string);
}

打印结果,这是同一个线程id,所以没有用异步线程

test1:151
test1:151test:151

private static String string = "";
    @Override
//    @Async
    public void test() {
        test1();
        string = string + "test:" + Thread.currentThread().getId();
        System.out.println(string);
    }
    
    @Override
    @Async
    public void test1() {
        string = string + "test1:" + Thread.currentThread().getId();
        System.out.println(string);
    }

打印结果,这是同一个线程id,所以没有用异步线程

test1:111
test1:111test:111