org.apache.cxf.transport.servlet.CXFServlet cannot be cast to javax.servlet.Servlet

java.lang.ClassCastException: org.apache.cxf.transport.servlet.CXFServlet cannot be cast to javax.servlet.Servlet

maven下web项目依赖servlet-api.jar

1 <dependency>
2     <groupId>javax.servlet</groupId>
3     <artifactId>servlet-api</artifactId>
4     <version>2.4</version>
5 </dependency>

忘了应该这么写以免与tomcat内置jar包冲突：

1 <dependency>
2 　　 <groupId>javax.servlet</groupId>
3  　　<artifactId>servlet-api</artifactId>
4 　　 <version>2.4</version>
5 　　 <scope>provided</scope>
6 </dependency>