idea把spring boot项目打包war

1.pom.xml修改打包类型pom改为war

2.

<artifactId>Test02</artifactId>

<packaging>war</packaging>

<!--maven打包时应用-->

<build>
   <plugins>
      <plugin>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
   </plugins>
   <!--<finalName>registeradmin</finalName>-->
</build>

3.去除内置Tomcat

<!--引入spring-boot-web依赖作为工程Web开发的基础包，Webk开发需要的一些注解，接口，类等都在这个包中-->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
   <!-- 过滤springboot默认嵌入式tomcat插件 -->
   <exclusions>
      <exclusion>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-tomcat</artifactId>
      </exclusion>
   </exclusions>
</dependency>

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

4.修改application类

@SpringBootApplication
//public class RegisteradminApplication  {
// public static void main(String[] args) {
//    SpringApplication.run(RegisteradminApplication.class, args);
// }
//
//}
public class RegisteradminApplication extends SpringBootServletInitializer implements WebApplicationInitializer {
   @Override
   protected SpringApplicationBuilder configure(SpringApplicationBuilder application){
      System.out.print("==========启动类1."+"\n");
      return application.sources(RegisteradminApplication.class);
   }
   public static void main(String[] args) {
      System.out.print("==========启动类2."+"\n");
      SpringApplication.run(RegisteradminApplication.class, args);
   }

}

5.

打包成功后目录出现target文件夹 

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将标记的war包复制出来,复制到服务器的tomcat的webapps目录下：

重启tomcat运行