问题描述
因为/TestStruts是部署应用程序的上下文路径。它与包中的名称空间具有相同的路径。尝试
http://localhost:8080/TestStruts/TestStruts/test.action
当URls从struts标记渲染时，它正在尝试查找相应的动作配置。如果找不到配置，则发出警告。
解决方法
我正在NetBeans 7.2.1的struts 2.3.16上尝试我的第一个应用程序。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)
该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;
}
}
该strtus.xml文件中：
<?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.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>
该web.xml文件中：
<?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文件外，我还添加了以下jar文件到类路径中。
- 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
当URL .jsp从from
更改为.actionlike时http://localhost:8080/TestStruts/Test.jsp，它显示以下警告。
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.
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