1. 首先在pom.xml里添加Tomcat依赖

		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>

2. 然后在pom.xml里将打包方式改为war

 <packaging>war</packaging>

3. 把启动类改为

package com.leo.csdnspider;

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;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
public class Application extends SpringBootServletInitializer {

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

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

4. 使用Maven的package打包，war包会输出到target目录

5. 启动Tomcat，把war包放入webapps文件夹，Tomcat会自动解压并部署

6. 打开浏览器访问：http://localhost:[端口号]/[war包名]/