Struts Hello world示例:没有为名称空间[/]和操作名称错误映射的操作 [英] Struts Hello world example : There is no Action mapped for namespace [/] and action name error

问题描述

我绝对是Struts2的初学者.我想遵循struts网站上的教程.我遵循了本教程.我有麻烦.我在Eclipse上创建了动态Web项目.然后我按照教程进行.但是，当我运行示例时，出现以下错误.

i am absolute beginner to Struts2. I am tying to follow tutorials on struts web site. i followed this tutorial. i have some trouble with it. i created dynamic web project on eclipse. Then i followed the tutorial. However when i run the example i get the following error.

There is no Action mapped for namespace [/] and action name [hello] associated with context path [/Hello_World_Struts_2]. - [unknown location]

我具有以下目录结构

我的struts.xml文件是

And my struts.xml file is

 <?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" namespace="/">

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

  <action name="hello" class="org.apache.struts.helloworld.action.HelloWorldAction" method="execute">
    <result name="SUCCESS">/HelloWorld.jsp</result>
  </action>

</package>

</struts>

感谢您的回复.

推荐答案

struts.xml配置文件必须位于类路径中(与WEB-INF中相反).

The struts.xml configuration file needs to be on the classpath (as opposed to in WEB-INF).

链接的教程假定使用Maven构建，并指出struts.xml文件应放入src/main/resources中，该文件将包含在Maven构建的类路径中.由于您忽略了该部分，因此您可能希望将其放在源目录的根目录中.

The linked tutorial assumes a Maven build and states the struts.xml file should go in src/main/resources, which will be included in the classpath in Maven builds. Since you're ignoring that part, you'll likely want to put it in the root of your source directory.

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