SSH 整合问题 •Method create for action useraction_add is not allowed!

23:38:06.711 [http-bio-8080-exec-5] ERROR org.apache.struts2.dispatcher.Dispatcher - Could not find action or result: /sshday3/useraction_add
com.opensymphony.xwork2.config.ConfigurationException: Method create for action useraction_add is not allowed!
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:200) ~[struts2-core-2.5.10.1.jar:2.5.10.1]
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:74) ~[struts2-core-2.5.10.1.jar:2.5.10.1]
at org.apache.struts2.rest.RestActionProxyFactory.createActionProxy(RestActionProxyFactory.java:53) ~[struts2-rest-plugin-2.5.10.1.jar:2.5.10.1]
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:554) [struts2-core-2.5.10.1.jar:2.5.10.1]
at org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:81) [struts2-core-2.5.10.1.jar:2.5.10.1]
at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:143) [struts2-core-2.5.10.1.jar:2.5.10.1]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">------------------------------------------------------------------
<struts>
<constant name="struts.devMode" value="true"/>
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<constant name="struts.objectFactory" value="spring" />

    <package name="sshday3" namespace="/" extends="struts-default">
    <action name="useraction_*" class="userAction" method="{1}">
    <result name="success">/success.jsp</result>
    <allowed-methods>add</allowed-methods>
    </action>
    </package>
   
</struts>
-----------------------------------------------------------------------
这个是什么原因呢？ 什么都搞好了，总是提示方法不能创建！