异步调用

引入Jar包

1. hutool工具类

   <!--hutool工具类 用于发送异步请求-->
   <dependency>
   	<groupId>cn.hutool</groupId>
   	<artifactId>hutool-all</artifactId>
   	<version>4.3.2</version>
   </dependency>

---

SpringMVC

1. 接口支持

    //Get请求
    @RequestMapping("/getOne")
    @ResponseBody
    public Staff getOne(Long employ) {
        return staffDao.get(employ);
    }
	
    //Post请求
    @PostMapping("/getOne")
    @ResponseBody
    public Staff getOne(@RequestBody Staff staff) {
      return staffDao.get(staff.getEmpNo());
    }

---

请求

1. Get请求

        //定义请求URL
	String url = "http://localhost:8888/staff/getOne?employ=6";
	//一个完整的HTTP请求
	String body = HttpRequest.post(url).timeout(2000)
			.execute()
			.body();
	System.out.println(JSON.toJSON(body));
	//TODO: {"empNo":6,"eName":"赫舍里.索尔图","proVince":"北京市御花园","deptld":"4","groupU":"4","age":"16","sex":"男"}

2. Post请求

        //定义请求URL
	String url = "http://localhost:8888/staff/getOne";
	//定义参数
	Staff staff = new Staff();
	staff.setEmpNo(6L);
	//一个完整的HTTP请求
	String body = HttpRequest.post(url).timeout(2000)
			.body(JSON.toJSONString(staff))
			.execute()
			.body();
	System.out.println(JSON.toJSON(body));
	//TODO: {"empNo":6,"eName":"赫舍里.索尔图","proVince":"北京市御花园","deptld":"4","groupU":"4","age":"16","sex":"男"}