Spring Initializr idea using a key generation Spring Boot application

First, open the idea, click on File - New - project, select Spring Initializr, you click Next

Then continue to point connection Next

Select the Web, and then click Next

Click Finish to

Then create a controller package for testing

Create a class in the controller MyController

package com.lzy.myspringboot.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class MyController {
    //RequestMapping使out方法和url中的/out地址绑定在一起，ResponseBody则会将success字符串输出到客户端浏览器
    @RequestMapping("/out")
    @ResponseBody
    public String out(){
        return "success";
    }
}

 Click to run back to class MySpringBootApplication

Console appears

Then open the browser, type L ocalhost: 8080 / OUT, operating results for the success shows a success