Question

我的index.jsp是：

<html>
<head>
<title>Basic Struts webapp</title>
</head>
<body>
    <h2>Hello to Struts 2 !!</h2>

    <s:url action="hello" var="helloLink">
        <s:param name="userName" value="VolodiaL" />
    </s:url>
    <p>
        <a href="${helloLink}">Get my nickname</a>
    </p>
    <p>My nickname is</p>
</body>
</html>

我的struts.xml是：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
   "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
   "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
    <constant name="struts.devMode" value="true"/>
    <package name="basicstruts2" extends="struts-default">

        <action name="start">
            <result>/index.jsp</result>
        </action>

        <action name="hello" class="basicstruts2.HelloWorldAction" method="execute">
            <result name="success">/index.jsp</result>
        </action>
   </package>
</struts>

当我点击“获取我的昵称”链接时，我收到此错误：

There is no Action mapped for namespace [/] and action name [helloLink] associated with context path [/basicStruts]. - [unknown location]
    com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
    org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
    org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
    com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:552)
    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

为什么会这样？

我解决了。只有这样才有效：

<s:a action="helloVova">get my nickname!
            <s:param name="userName">VolodiaL</s:param>
        </s:a>

但是如果我使用s：param的value属性那么它就不起作用了。

没有映射名称空间[/]的动作和与上下文路径[/ basicStruts]相关联的动作名称[helloLink]

0 个答案: