Struts 2 Dispatcher初始化失败

我有一个创建Struts 2项目并获取用户凭据的项目，但我未能获得基本文本输出。我得到的只是一个404，说请求的资源不可用。我试着重新创建了这个项目，并下载了Struts 2.5.2和tomcat 7.0。

EmployeeAction.java

package org.GTAC.action;
import com.opensymphony.xwork2.ActionSupport;
import org.GTAC.model.MessageStore;
public class EmployeeAction extends ActionSupport {

    private static final long serialVersionUID = 1L;
    private MessageStore messageStore;
    public String execute() throws Exception {
        messageStore = new MessageStore() ;
        return SUCCESS;
    }
    public MessageStore getMessageStore() {
        return messageStore;
    }
    public void setMessageStore(MessageStore messageStore) {
        this.messageStore = messageStore;
    }
}

MessageStore.java

package org.GTAC.model;
public class MessageStore {
    private String message;
    public MessageStore(){
        setMessage("Hello Struts User");
    }
    public String getMessage(){
         return message;
    }
    public void setMessage(String message){
        this.message = message;
    }
}

struts.xml

<?xml version="1.0" encoding="UTF-8"?>

<struts>
    <constant name="struts.devMode" value="true" />
    <package name="default" extends="struts-default" >
        <action name="index">
            <result>/index.jsp</result>
        </action>
        <action name="hello"    class="org.GTAC.action.EmployeeAction" method="execute">
            <result name="success">/success.jsp</result>
        </action>
    </package>
</struts>

<<p> index . jsp/strong>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO- 8859-1"> <title>Welcome</title> </head> <body> <h1>Welcome</h1> <p><a href="<s:url action='hello' />">Enter Here</a> </body> </html>
success.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO- 8859-1"> <title>Hello GTAC Employee</title> </head> <body> <h2><s:property value="messageStore.message" /></h2> </body> </html>
web . xml
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" 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>GTAC Project</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter -class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
<<p> 控制台/strong>
Oct 24, 2016 4:10:24 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:u001apporacleproductjavajdk1.7.0_55bin;C:WindowsSunJavabin;C:Windowssystem32;C:Windows;C:Oracleproduct11.2.0client_1bin;C:Windowssystem32;C:Windows;C:WindowsSystem32Wbem;C:WindowsSystem32WindowsPowerShellv1.0;C:antbin;C:u001apporacleproductjavajdk1.7.0_55bin;. Oct 24, 2016 4:10:24 PM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:GTAC' did not find a matching property. Oct 24, 2016 4:10:24 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] Oct 24, 2016 4:10:24 PM org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] Oct 24, 2016 4:10:24 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 1323 ms Oct 24, 2016 4:10:24 PM org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina Oct 24, 2016 4:10:24 PM org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.47 Oct 24, 2016 4:10:25 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [172] milliseconds. Oct 24, 2016 4:10:35 PM org.apache.catalina.core.ApplicationContext log INFO: No Spring WebApplicationInitializer types detected on classpath ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console... ERROR Dispatcher Dispatcher initialization failed Unable to load configuration. - bean - jar:file:/C:/Eclipse%20projects/GTAC/GTACProject/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/GTAC/WEB-INF/lib/struts2-gxp-plugin-2.5.2.jar!/struts-plugin.xml:8:162 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70) at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:897) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:437) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:478) at org.apache.struts2.dispatcher.InitOperations.initDispatcher(InitOperations.java:75) at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:63) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: Unable to load bean: type:org.apache.struts2.views.gxp.inject.InjectedObjectContainer class:org.apache.struts2.views.gxp.inject.InjectedObjectContainer - bean - jar:file:/C:/Eclipse%20projects/GTAC/GTACProject/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/GTAC/WEB-INF/lib/struts2-gxp-plugin-2.5.2.jar!/struts-plugin.xml:8:162 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:265) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:98) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:163) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67) ... 17 more Caused by: java.lang.ClassNotFoundException: org.apache.struts2.views.gxp.inject.InjectedObjectContainer at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) at com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:176) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:238) ... 20 more Oct 24, 2016 4:10:37 PM org.apache.catalina.core.StandardContext filterStart SEVERE: Exception starting filter struts2 Unable to load configuration. - bean - jar:file:/C:/Eclipse%20projects/GTAC/GTACProject/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/GTAC/WEB-INF/lib/struts2-gxp-plugin-2.5.2.jar!/struts-plugin.xml:8:162 at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:491) at org.apache.struts2.dispatcher.InitOperations.initDispatcher(InitOperations.java:75) at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:63) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: Unable to load configuration. - bean - jar:file:/C:/Eclipse%20projects/GTAC/GTACProject/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/GTAC/WEB-INF/lib/struts2-gxp-plugin-2.5.2.jar!/struts-plugin.xml:8:162 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70) at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:897) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:437) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:478) ... 14 more Caused by: Unable to load bean: type:org.apache.struts2.views.gxp.inject.InjectedObjectContainer class:org.apache.struts2.views.gxp.inject.InjectedObjectContainer - bean - jar:file:/C:/Eclipse%20projects/GTAC/GTACProject/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/GTAC/WEB-INF/lib/struts2-gxp-plugin-2.5.2.jar!/struts-plugin.xml:8:162 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:265) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:98) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:163) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67) ... 17 more Caused by: java.lang.ClassNotFoundException: org.apache.struts2.views.gxp.inject.InjectedObjectContainer at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) at com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:176) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:238) ... 20 more Oct 24, 2016 4:10:37 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Error filterStart Oct 24, 2016 4:10:37 PM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/GTAC] startup failed due to previous errors Oct 24, 2016 4:10:37 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["http-bio-8080"] Oct 24, 2016 4:10:37 PM org.apache.coyote.AbstractProtocol start INFO: Starting ProtocolHandler ["ajp-bio-8009"] Oct 24, 2016 4:10:37 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 12304 ms

删除struts2-gxp-plugin-2.5.2.jar
(或包中包含的任何版本)。
就是这样。

你不需要它，你一开始就不应该包含它。

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