springmvc 后端入口参数接收

package controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.HashMap;
import java.util.Map;

@Controller
@RequestMapping("/enter")
public class EnterController {

    //get请求  无参数
    //http://localhost:8080/springmvc/enter/demo1
    @RequestMapping("/demo1")
    public void demo1(){
        System.out.println("demo1");
        //结果  demo1
    }


    //get 请求 有参数
    //http://localhost:8080/springmvc/enter/demo2/001
    @RequestMapping("/demo2/{serverCode}")
    public void demo2(@PathVariable String serverCode){
        System.out.println(serverCode);
        //  结果   001  后边参数可以变动,  是按照顺序排列的
    }

    //get 请求 有参数
    //http://localhost:8080/springmvc/enter/demo2/001
    @RequestMapping("/demo3/{serverCode}/{pathcode}")
    public void demo3(@PathVariable String serverCode,@PathVariable String pathcode){
        System.out.println(serverCode + " " + pathcode);
        //001 123
        //  结果   001  后边参数可以变动,  是按照顺序排列的
    }


    //post请求  工具模拟  jmeter
    //http://localhost:8080/springmvc/enter/demo4   post
    //content-Type  application/json
    @RequestMapping("/demo4")
    public void demo4(@RequestBody String requestBody){

        System.out.println(requestBody);
        //{"userId":"123456"}
    }


    //以上为纯后端开发

}

返回直接返回string数据就可以