/**
* Copyright (c) 2005-2012 https://github.com/zhangkaitao
*
* Licensed under the Apache License, Version 2.0 (the "License");
*/
package com.sishuok.chapter3.web.controller;
import com.sishuok.chapter3.entity.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import java.util.concurrent.Callable;
/**
* spring实现方式：
* 1、把任务提交给Executor 异步执行；
* 2、执行完成后RequestMappingHandlerAdapter使用内部的ServletInvocableHandlerMethod包装返回值，即按照非异步方式再执行
* <p>User: Zhang Kaitao
* <p>Date: 13-7-16 下午7:59
* <p>Version: 1.0
*/
@Controller
public class CallableController {
@RequestMapping("/callable1")
public Callable<String> callable1(final Model model) {
return new Callable<String>() {
@Override
public String call() throws Exception {
Thread.sleep(2L * 1000); //暂停两秒
String viewName = "msg";
model.addAttribute("msg", "hello callable");
return viewName; //然后返回到指定视图页面
}
};
}
@RequestMapping("/callable2")
public Callable<ModelAndView> callable2() {
return new Callable<ModelAndView>() {
@Override
public ModelAndView call() throws Exception {
Thread.sleep(2L * 1000); //暂停两秒
ModelAndView mv = new ModelAndView("msg");
mv.addObject("msg", "hello callable");
return mv;
}
};
}
@RequestMapping("/callable3")
@ResponseBody
public Callable<Object> callable3() {
return new Callable<Object>() {
@Override
public Object call() throws Exception {
Thread.sleep(2L * 1000); //暂停两秒
return new User(1, "zhang");
}
};
}
}