SpringBoot去除內嵌Tomcat方法

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，需要添加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>
    <!--添加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>

打包方式設置成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);
    }
    
    // 重寫Servlet初始化器
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(this.getClass());
    }
 
}

三、添加到Tomcat容器、run 即可