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打开idea,点击创建新项目,选择Spring Initializr
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点击next,填写Group和Artifact
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选择Web,再选择Web复选框
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填写Project name,点击finish
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打开项目目录,删除以下文件夹和文件
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该类是自动生成的,是程序的入口
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
- 创建TestController
package com.example.demo.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/demo")
public class TestController {
@RequestMapping("/hello")
public String test() {
return "hello world ..";
}
}
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启动DemoApplication
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在地址栏中输入http://localhost:8080/demo/hello
启动之后访问异常处理:https://www.cnblogs.com/lilinzhiyu/p/7921890.html