spring-boot 打成war包

<packaging>war</packaging>

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

public class App extends SpringBootServletInitializer {  
  
    @Override  
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {  
        return application.sources(App.class);  
    }