action-mapping | 易学教程

cannot run Struts 2 Hello World

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问题 Problem When I run my project and try to run ERROR Dispatcher Dispatcher initialization failed Unable to load configuration. - bean - jar:file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%208.5/wtpwebapps/Struts2Test/WEB-INF/lib/struts2-gxp-plugin-2.5.22.jar!/struts-plugin.xml:27:162 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69) and more... http://localhost:8081/Struts2Test/testAction It does not work. It show HTTP status

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

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问题 I know that there are several other threads with the same error, but trust me, non of them helped me in solving my issue. I have a web application built on Java using Struts2 version struts-2.3.16 and Hibernate. My issue is, in my application I have struts.xml, because of it's huge size i split it into three xml files. One is main struts.xml which contains two include tag which points out to two different strtus-XXX.xml file's of the same application. My problem is that only one struts-XXX

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

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HTTP Status 404 - There is no Action mapped for namespace [/] and action name [login] associated with context path [/struts2]

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问题 I have learned theory of Struts2 and now practicing. Facing problems while executing project.I searched in Google in many ways but could not find result.Please help me. Below is the code.Please help me friends... Project structure: web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns

Struts2 .action extension causing CSS, JavaScript and Struts Dojo to break

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问题 We have been running on Struts 2.1.8 for some time and all Struts actions have been working as expected, i.e. href's to the Struts actions are rendered with the action name with no extension. Here is the JSP code that set's up the links: <ul id="top_menu"> <li id="itemHome" class="active"><s:a action="viewHome">Home</s:a></li> <li><s:a action="viewSearch">Search</s:a></li> <li><s:a action="viewBookMarks">My Bookmarks</s:a></li> <li><s:a action="viewSupport">Support</s:a></li> </ul> The links

There is no Action mapped for namespace [/] and action name associated with context path

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问题 I am attaching my files. Kindly help me out. I gave my url path as http://localhost:8080/Struts2Check/getTutorial.action struts-config.xml <?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-config> <package name="default" extends="struts-default"> <action name="getTutorial" class="org.tutorial.action.StrutsAction"> <result name="success">/success.jsp</result>

Why this NPE when I request for Struts2 action?

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问题 I am new to struts and Struts 2.x, I am getting below exception when i am trying to make request to action class from Struts 2 form. File: org/apache/struts2/impl/StrutsActionProxy.java Line number: 69 Stacktraces java.lang.NullPointerException org.apache.struts2.impl.StrutsActionProxy.getErrorMessage(StrutsActionProxy.java:69) com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185) org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63) org.apache

There is no Action mapped for namespace [/] and action name [loginauth] associated with context path [/Login_Reg]

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问题 Sep 16, 2015 6:02:40 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 2522 ms Sep 16, 2015 6:02:49 PM org.apache.struts2.dispatcher.Dispatcher warn WARNING: Could not find action or result: /Login_Reg/loginauth.action There is no Action mapped for namespace [/] and action name [loginauth] associated with context path [/Login_Reg]. - [unknown location] at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185) at org.apache.struts2.impl

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

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问题 I'm trying my first application on struts 2.3.16 in NetBeans 7.2.1. It shows the following error on entering a URL - http://localhost:8080/TestStruts/Test.action (There is a Test.jsp page). WARNING: Could not find action or result: /TestStruts/Test.action There is no Action mapped for namespace [/] and action name [Test] associated with context path [/TestStruts]. - [unknown location] at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185) at org.apache.struts2.impl

HTTP Status 404 - There is no Action mapped for namespace [/] and action name [login] associated with context path [/struts2]

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I have learned theory of Struts2 and now practicing. Facing problems while executing project.I searched in Google in many ways but could not find result.Please help me. Below is the code.Please help me friends... Project structure: web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name