Spring boot项目打成war包部署到tomcat

@SpringBootApplication
@ComponentScan
@Import({DBConfiguration.class, ResourceConfiguration.class,AppConfiguration.class})
public class Application extends SpringBootServletInitializer {
    @Override
 protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
 }

<dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-tomcat</artifactId>
           <scope>provided</scope>
       </dependency>
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-legacy</artifactId>
   <version>1.0.2.RELEASE</version>
</dependency>

<dependency>
   <groupId>javax.servlet</groupId>
   <artifactId>javax.servlet-api</artifactId>
   <version>3.0.1</version>
</dependency>
<dependency>
   <groupId>javax.servlet</groupId>
   <artifactId>javax.servlet-api</artifactId>
   <version>3.0.1</version>
</dependency>

<dependency>
   <groupId>commons-fileupload</groupId>
   <artifactId>commons-fileupload</artifactId>
   <version>1.3.1</version>
</dependency>