排除Springboot嵌套的Tomcat

spring Boot 项目的打包方式设置为 war。
http://blog.csdn.net/u013378306/article/details/54693208#t1

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
            </exclusion>
        </exclusions>
</dependency>