Struts Action匹配出错解决方案

本是古典何须时尚 2022-08-22 04:53 130阅读 0赞

今天准备试一试通配符来匹配Action,struts.xml里是这样配置的

表单提交页是这样写的

<s:form action="loginAction">
    	<s:textfield name="username" key="username"/>
    	<s:textfield name="password" key="password"/>
    	<s:submit key="submit_login"/>
    </s:form>

处理Action的类也是有的,但一提交就出错:

There is no Action mapped for namespace \[/\] and action name \[loginAction\] associated with context path \[/Structs2Demo\]. - \[unknown location\]

com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:192)
        org.apache.struts2.factory.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
        org.apache.struts2.factory.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
        com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
        org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:546)
        org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:81)
        org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:113)
        org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
        org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
        org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
        org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
        org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
        org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
        org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
        org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
        org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
        org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
        org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
        java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        java.lang.Thread.run(Unknown Source)

这个问题我终于找到了解决方案:答案是别人回答我的

2.5版本的与2.2版本之前的不一样，2,2版本以前，直接这样配置就行，从2.3以后，使用通配符的时候需要加入<allowed-methods>，2.5版本取得方法名称后，会验证改方法是否允许访问。所以需要加，里面可以写*，或者多个方法，login,logout等等，用逗号分隔
    <action name="*Action" class="XXX.LoginAction" method="{1}" >
                <result name="success">/jsp/a1.jsp</result>
                <result name="error">/jsp/a2.jsp</result>
             <allowed-methods>*</allowed-methods>  
    </action>