java.lang.NoSuchMethodError: javax.servlet.ServletContext.getVirtualServerName()

java.lang.NoSuchMethodError: javax.servlet.ServletContext.getVirtualServerName()Ljava/lang/String;
at org.apache.tomcat.websocket.server.WsServerContainer.<init>(WsServerContainer.java:149) ~[tomcat-embed-websocket-8.0.32.jar:8.0.32]
at org.apache.tomcat.websocket.server.WsSci.init(WsSci.java:131) ~[tomcat-embed-websocket-8.0.32.jar:8.0.32]
at org.apache.tomcat.websocket.server.WsContextListener.contextInitialized(WsContextListener.java:39) ~[tomcat-embed-websocket-8.0.32.jar:8.0.32]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4812) [tomcat-embed-core-8.0.32.jar:8.0.32]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5255) [tomcat-embed-core-8.0.32.jar:8.0.32]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) [tomcat-embed-core-8.0.32.jar:8.0.32]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) [tomcat-embed-core-8.0.32.jar:8.0.32]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) [tomcat-embed-core-8.0.32.jar:8.0.32]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_79]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79]


解决方案：是servlet的原因，大于等于3.1

  <dependency>
    <groupId>javax.servlet</groupId> 
    <artifactId>javax.servlet-api</artifactId> 
    <version>3.1.0</version> 
</dependency>