MappingData.wrapper is null。idea启动tomcat后访问页面报错，求助！！！

Question

严重: Error processing request
java.lang.RuntimeException: MappingData.wrapper is null
at org.apache.catalina.connector.CoyoteAdapter.reWrap(CoyoteAdapter.java)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1760)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1719)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)

虽然这是个严重错误，但是页面还是可以正常访问，而且每访问一次页面就会报一次。

Answer 1

http://www.cnblogs.com/fangjian0423/p/servletContainer-tomcat-urlPattern.html 看一下