springboot---简单配置

第一步：导入maven依赖

   <parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.3.4.RELEASEversion>
    parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
    dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
        plugins>
    build>

第二步，创建启动程序，也叫主程序

package com.atguigu;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
 * 主程序入口
 */
@SpringBootApplication
public class MainApplication {
    public static void main(String[] args) {
        SpringApplication.run(MainApplication.class,args);
    }
}

第三步：创建cotroller，编写测试程序

package com.atguigu.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Administrator
 * @description: TODO
 * @date 2021/12/11 14:06
 */
@RestController
public class HelloController {
    @RequestMapping("/hello")
    public String get(){
        return "hello boot";
    }

}

第四步：可以添加配置文件application.properties去修该tomcat的一些属性

修改端口号
server.port=8088

项目打jar包，以及部署：第一步

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0modelVersion>

    <groupId>com.atguigugroupId>
    <artifactId>boot-01-helloworldartifactId>
    <version>1.0-SNAPSHOTversion>

    <packaging>jarpackaging>

    <parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.3.4.RELEASEversion>
    parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
    dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
        plugins>
    build>
project>

第二步：找到maven依赖，选中下面两个，然后点击箭头运行

 成功提示

 注意：在cmd命令去掉快速编辑模式

 ...