没有映射命名空间[/ USER]和动作名称动作与上下文路径相关

点击URL在index.jsp页面后，返回消息没有映射命名空间[/ USER]和动作名称动作与上下文路径相关

There is no Action mapped for namespace [/user] and action name [user!add] associated with context path [/Struts2]. - [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) 
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99) 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
java.lang.Thread.run(Thread.java:722) 

You are seeing this page because development mode is enabled. Development mode, 
or devMode, enables extra debugging behaviors and reports to assist developers. 
To disable this mode, set: 
    struts.devMode=false 
in your WEB-INF/classes/struts.properties file.

项目结构[添加用户！]：

/Struts2/WebRoot/WEB-INF/web.xml

/Struts2/src/struts.xml

/Struts2/WebRoot/index.jsp

/Struts2/WebRoot/user_add_success.jsp

/Struts2/src/com/bjsxt/struts2/user/action/UserAction.java

/Struts2/src/com/bjsxt/struts2/user/model/User.java

支柱封装我导入

/Struts2的/的WebRoot/WEB-INF/LIB /公地fileupload- 1.3.jar

/Struts2/WebRoot/WEB-INF/lib/commons-io-2.2.jar

/Struts2/WebRoot/WEB-INF/lib/commons-lang3-3.1.jar

/Struts2的/的WebRoot/WEB -INF/LIB /共享记录-1.1.jar

/Struts2/WebRoot/WEB-INF/lib/freemarker-2.3.19.jar

/Struts2/WebRoot/WEB-INF/lib/javassist-3.11 .0.GA.jar

/Struts2/WebRoot/WEB-INF/lib/ognl-3.0.6.jar

/Struts2/WebRoot/WEB-INF/lib/struts2-core-2.3.16.jar

/Strut S2 /的WebRoot/WEB-INF/LIB/XWork的核 - 2.3.16.jar

/Struts2的/的WebRoot/WEB-INF/的web.xml

<?xml version="1.0" encoding="UTF-8"?> 
    <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 
    <display-name>Struts Blank</display-name> 
    <filter> 
     <filter-name>struts2</filter-name> 
     <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> 
    </filter> 
    <filter-mapping> 
     <filter-name>struts2</filter-name> 
     <url-pattern>/*</url-pattern> 
    </filter-mapping> 
    <welcome-file-list> 
     <welcome-file>index.html</welcome-file> 
     <welcome-file>index.jsp</welcome-file> 
    </welcome-file-list> 
    </web-app>

/Struts2的/ SRC/struts.xml中

<?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="user" extends="struts-default" namespace="/user">  
    <action name="user" class="com.bjsxt.struts2.user.action.UserAction"> 
     <result>/user_add_success.jsp</result> 
    </action> 
</package> 
</struts>

/Struts2的/的WebRoot/的index.jsp

<?xml version="1.0" encoding="GB18030" ?> 
<%@ page language="java" contentType="text/html; charset=GB18030" pageEncoding="GB18030"%> 
<% 
    String path = request.getContextPath(); 
    String basePath =request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 
%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=GB18030" /> 
<head> 
<base href="<%=basePath %>"/> 
<title>Insert title here</title> 
</head> 
<body> 
    use Domain Model to recieve param <a href="user/user!add?user.name=a&user.age=8">add</a> 
</body> 
</html>

/Struts2的/的WebRoot/user_add_success.jsp

<?xml version="1.0" encoding="GB18030" ?> 
<%@ page language="java" contentType="text/html; charset=GB18030" 
pageEncoding="GB18030"%> 
<%@taglib uri="/struts-tags" prefix="s" %> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=GB18030" /> 
<title>Insert title here</title> 
</head> 
<body> 
    User Add Success! 
</body> 
</html>

/Struts2的/ SRC/COM/bjsxt/struts2的/用户/操作/ UserAction.java

package com.bjsxt.struts2.user.action; 
import com.bjsxt.struts2.user.model.User; 
import com.opensymphony.xwork2.ActionSupport; 
public class UserAction extends ActionSupport { 
private User user; 
//private UserDTO userDTO; 
public String add() { 
    System.out.println("name=" + user.getName()); 
    System.out.println("age=" + user.getAge()); 
    return SUCCESS; 
} 
public User getUser() { 
    return user; 
} 
public void setUser(User user) { 
    this.user = user; 
} 
}

/Struts2/src/com/bjsxt/struts2/user/model/用户。java的

package com.bjsxt.struts2.user.model; 
public class User { 
private String name; 
private int age; 
public String getName() { 
    return name; 
} 
public void setName(String name) { 
    this.name = name; 
} 
public int getAge() { 
    return age; 
} 
public void setAge(int age) { 
    this.age = age; 
} 
}

来源

2014-02-28 Methew

发布您的struts.xml（编辑你自己的问题），而下一次，请把你的时间来写正确的问题，漂亮的句子，以及良好的格式化代码 –

可能的例外是正确的，你不必用行动这个名字，但粘贴的struts.xml –

你的动作映射没有一个方法属性设置，在Struts中DMI的新版本默认是关闭的，所以你必须映射要通过配置文件来调用一个方法。 –

这个异常其实说到，如果你有在struts.xml的文件有问题。从

<result>/user_add_success.jsp</result>

改变你的支柱XML结果位置到

<result>user_add_success.jsp</result>

或试着改变你的JSP文件中的操作名称来user.action。但我敢肯定的是，上面的人会做对于you.it肯定是发生了因通过的struts.xml文件only.check的问题。

来源

2014-03-03 04:47:54 Prakash

而不是

<a href="user/user!add?user.name=a&user.age=8">add</a>

使用

<s:url var="myUrl" namespace="/user" action="user" method="add"> 
    <s:param name="user.name" value="%{'a'}" /> 
    <s:param name="user.age" value="%{'8'}" /> 
</s:url> 
<s:a href="%{myUrl}">add</s:a>

来源

2014-02-28 16:34:15

我已经取代了代码，但服务器仍然报告相同的错误： _There没有映射命名空间[/ USER]和动作名称动作与上下文路径[/ Struts2的]相关的[添加用户！]。 - [未知地点] _ – Methew

没有映射命名空间[/ USER]和动作名称动作与上下文路径相关

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