首页 \ 问答 \ 没有映射名称空间[/]的动作和与上下文路径[/ TestStruts]相关联的动作名称[Test]。(There is no Action mapped for namespace [/] and action name [Test] associated with context path [/TestStruts]. - [unknown location])

没有映射名称空间[/]的动作和与上下文路径[/ TestStruts]相关联的动作名称[Test]。(There is no Action mapped for namespace [/] and action name [Test] associated with context path [/TestStruts]. - [unknown location])

 我正在NetBeans 7.2.1中尝试我的第一个应用程序struts 2.3.16。 它在输入URL时显示以下错误 - http://localhost:8080/TestStruts/Test.action （有一个Test.jsp页面）。 
 

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.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
    at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
    at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
    at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:552)
    at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

 

 Test.jsp页面： 
 

<s:form namespace="/TestStruts" action="test">
    <table border="0" class="">
            <tr>

                <td>
                    <s:textfield id="name" name="name" label="Enter your name"/>
                </td>
            </tr>
            <tr>
                <td>
                    <s:textfield id="email" name="email" label="Enter your email"/>
                </td>
            </tr>
            <tr>
                <td></td>
                <td><s:submit value="Submit"/></td>
            </tr>
    </table>            

</s:form>

 

 动作类： 
 

package actions;
import com.opensymphony.xwork2.ActionSupport;

public final class TestAction extends ActionSupport
{
    private static final String SUCCESS = "success";
    private String name;
    private String email;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    @Override
    public String execute() throws Exception
    {
        System.out.println("name = "+name);
        System.out.println("email = "+email);
        return SUCCESS;
    }
}

 

 strtus.xml文件： 
 

<?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.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="true" />
    <constant name="struts.custom.i18n.resources" value="myapp" />

    <package name="test" namespace="/TestStruts" extends="struts-default">
        <action name="test" class="actions.TestAction" method="execute">
            <result name="success">/Test.jsp</result>
        </action>
    </package>

</struts>

 

 web.xml文件： 
 

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            /WEB-INF/applicationContext.xml
        </param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <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>

    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

 

 除了Spring的jar文件之外，我还将以下jar文件添加到了类路径中。 
 

     
 
  •  公地的BeanUtils-1.8.0.jar 
    •  
 
  •  公共链1.2.jar 
    •  
 
  •  公地集合-3.1.jar 
    •  
 
  •  公共沼气池-2.0.jar 
    •  
 
  •  公地文件上传-1.3.jar 
    •  
 
  •  公地IO-2.2.jar 
    •  
 
  •  公地lang3-3.1.jar 
    •  
 
  •  公地郎2.4.jar 
    •  
 
  •  共享记录-1.1.3.jar 
    •  
 
  •  共享记录-API-1.1.jar 
    •  
 
  •  公地验证-1.3.1.jar 
    •  
 
  •  freemarker的-2.3.19.jar 
    •  
 
  •  Javassist进行-3.11.0.GA.jar 
    •  
 
  •  OGNL-3.0.6.jar 
    •  
 
  •  Struts2的核心 - 2.3.16.jar 
    •  
 
  •  struts2的 - 弹簧 - 插件-2.3.16.jar 
    •  
 
  •  XWork的核心，2.3.16.jar 
    •  

 

 

 当URL从.action例如http://localhost:8080/TestStruts/Test.jsp ）更改为.jsp ，它会显示以下警告。 
 

Dec 22, 2013 9:00:44 PM org.apache.struts2.components.ServletUrlRenderer warn
WARNING: No configuration found for the specified action: 'test' in namespace: '/TestStruts'. Form action defaulting to 'action' attribute's literal value.
Dec 22, 2013 9:00:45 PM org.apache.struts2.components.ServletUrlRenderer warn
WARNING: No configuration found for the specified action: 'test' in namespace: '/TestStruts'. Form action defaulting to 'action' attribute's literal value.

 

 我错过了什么？ 

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.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
    at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
    at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
    at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:552)
    at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1822)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

 

The Test.jsp page:
 

<s:form namespace="/TestStruts" action="test">
    <table border="0" class="">
            <tr>

                <td>
                    <s:textfield id="name" name="name" label="Enter your name"/>
                </td>
            </tr>
            <tr>
                <td>
                    <s:textfield id="email" name="email" label="Enter your email"/>
                </td>
            </tr>
            <tr>
                <td></td>
                <td><s:submit value="Submit"/></td>
            </tr>
    </table>            

</s:form>

 

The action class:
 

package actions;
import com.opensymphony.xwork2.ActionSupport;

public final class TestAction extends ActionSupport
{
    private static final String SUCCESS = "success";
    private String name;
    private String email;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    @Override
    public String execute() throws Exception
    {
        System.out.println("name = "+name);
        System.out.println("email = "+email);
        return SUCCESS;
    }
}

 

The strtus.xml file:
 

<?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.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="true" />
    <constant name="struts.custom.i18n.resources" value="myapp" />

    <package name="test" namespace="/TestStruts" extends="struts-default">
        <action name="test" class="actions.TestAction" method="execute">
            <result name="success">/Test.jsp</result>
        </action>
    </package>

</struts>

 

The web.xml file:
 

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            /WEB-INF/applicationContext.xml
        </param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <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>

    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

 

In addition to jar files of Spring, I have added the following jar files to the classpath.
 

     
 
  • commons-beanutils-1.8.0.jar
    •  
 
  • commons-chain-1.2.jar
    •  
 
  • commons-collections-3.1.jar
    •  
 
  • commons-digester-2.0.jar
    •  
 
  • commons-fileupload-1.3.jar
    •  
 
  • commons-io-2.2.jar
    •  
 
  • commons-lang3-3.1.jar
    •  
 
  • commons-lang-2.4.jar
    •  
 
  • commons-logging-1.1.3.jar
    •  
 
  • commons-logging-api-1.1.jar
    •  
 
  • commons-validator-1.3.1.jar
    •  
 
  • freemarker-2.3.19.jar
    •  
 
  • javassist-3.11.0.GA.jar
    •  
 
  • ognl-3.0.6.jar
    •  
 
  • struts2-core-2.3.16.jar
    •  
 
  • struts2-spring-plugin-2.3.16.jar
    •  
 
  • xwork-core-2.3.16.jar
    •  

 

 

When the URL is changed to .jsp from .action like http://localhost:8080/TestStruts/Test.jsp, it shows the following warnings.
 

Dec 22, 2013 9:00:44 PM org.apache.struts2.components.ServletUrlRenderer warn
WARNING: No configuration found for the specified action: 'test' in namespace: '/TestStruts'. Form action defaulting to 'action' attribute's literal value.
Dec 22, 2013 9:00:45 PM org.apache.struts2.components.ServletUrlRenderer warn
WARNING: No configuration found for the specified action: 'test' in namespace: '/TestStruts'. Form action defaulting to 'action' attribute's literal value.

 

What am I missing?

原文：https://stackoverflow.com/questions/20730967
更新时间：2022-09-10 07:09

最满意答案

     
 
  •  使用块形式gsub(regex){ $1 }而不是gsub(regex, '\1') 
    •  
 
  •  您也可以将正则表达式简化为/\B#(\w+)/i 
    •  
 
  •  您可以省略h()帮助程序，Rails 4默认会转义恶意输入 
    •  
 
  •  将方法参数指定为embed_hashtag(data)而不是embed_hashtag('data') 
    •  
 
  •  在进行替换之前，您需要定义embed_hashtag 
    •  
 
  •  要建立一个链接，你可以使用link_to(text, url) 
    •  

 

 这应该可以做到这一点： 
 

def embed_hashtag(tag)
  url = 'http://example.com'
  link_to tag, url
end

raw(
  text.gsub(/\B#(\w+)/i){ embed_hashtag($1) }
)


     
 
  • Use the block form gsub(regex){ $1 } instead of gsub(regex, '\1')
    •  
 
  • You can simplify the regex to /\B#(\w+)/i as well
    •  
 
  • You can leave out the h() helper, Rails 4 will escape malicious input by default
    •  
 
  • Specify method arguments as embed_hashtag(data) instead of embed_hashtag('data')
    •  
 
  • You need to define embed_hashtag before doing the substitution
    •  
 
  • To build a link, you can use link_to(text, url)
    •  

 

This should do the trick:
 

def embed_hashtag(tag)
  url = 'http://example.com'
  link_to tag, url
end

raw(
  text.gsub(/\B#(\w+)/i){ embed_hashtag($1) }
)

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