一起学习springboot(一)：使用外置Tomcat启动

本篇博文将在上篇文章代码的基础上进行改造，上篇文章地址：https://blog.csdn.net/xujiangdong1992/article/details/83507318

1. 修改pom.xml文件，新增依赖

		<dependency>
			<groupId>org.apache.tomcat</groupId>
			<artifactId>tomcat-servlet-api</artifactId>
			<version>8.0.36</version>
			<scope>provided</scope>
		</dependency>

2. 修改启动类 SpringbootFirstApplication，重写了configure方法

package com.example.springboot_first;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

@SpringBootApplication
public class SpringbootFirstApplication extends SpringBootServletInitializer {

	public static void main(String[] args) {
		SpringApplication.run(SpringbootFirstApplication.class, args);
	}

	@Override
	protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
		return builder.sources(SpringbootFirstApplication.class);
	}
}

1. 配置Tomcat（假设你的电脑上已经装有Tomcat了）
   
   
   
   
   
   配置工程访问后缀，可以不配，最后 apply---->ok
   
2. maven打包部署
   
3. 启动项目并访问，别漏了这个后缀