SpringBoot內嵌tomcat，直接run Application即可，那麼我們如何去除內嵌的tomcat，使用自己的呢？

一、POM(去除內嵌tomcat後，需要新增servlet依賴)

     <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <!-- 去除內嵌tomcat -->
      <exclusions>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <!--新增servlet的依賴-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>

      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.0.0</version>
      </plugin>
 

打包方式設定成war

  <packaging>war</packaging>

二、繼承SpringBootServletInitializer重寫configure方法

package com.example.export;

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

	@Override
	protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
		return builder.sources(this.getClass());
	}

}
 

三、新增到tomcat容器、run 即可