配置springboot項目使用外部tomcat

在pom文件中添加依賴

<!--使用自帶的tomcat-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>

在Springboot自帶的Application啟動類所在目錄下新建啟動類SpringBootStartApplication

package com.huang;

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

//讓該類繼承springboot的SpringBootServletInitializer
public class SpringBootStartApplication extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application){
        //找到原先的啟動類
        return application.sources(WebchatApplication.class);
    }
}

#目錄如下
src
 |-main
 	|-java
 		|-WebchatApplication.class #原本的啟動類
 		|-SpringBootStartApplication.class #新的啟動類
 	|-resources