spring的@Async异步使用

pring的@Async功能，用的时候一定要注意：

1、异步方法和调用类不要在同一个类中。

2、xml里需要加入这一行 <task:annotation-driven/>

下面的可以直接粘贴使用

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="
    http://www.springframework.org/schema/jee
    http://www.springframework.org/schema/jee/spring-jee.xsd
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd
    http://www.springframework.org/schema/task
    http://www.springframework.org/schema/task/spring-task-4.0.xsd">

以下是demo

@Autowired
    private AsyncDemo asyncDemo;

    @Action("/a")
    public String a() throws Exception {
        asyncDemo.asyncInvokeWithParameter(paramString("t"));
        System.out.println(1111);
        return null;
    }

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

@Service
public class AsyncDemo {

    @Async
    public void asyncInvokeWithParameter(String s) {
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
       System.out.println("asyncInvokeWithParameter, parementer={}"+ s);
    }

}