好的，这是我的第一个用Java编写的应用程序，也是我第一次使用Eclipse Kepler，Tomcat
7和Struts2编写的应用程序，所以我感到惊讶的是，我所知道的只是JS和Rails，甚至还没有实现。无论如何，"Success Page!"当您在运行Tomcat 7的过程中在IDE中输入该URL时，该基本的Web应用程序实际上只是输出字符串。

我查看了Tomcat成功页面，所以我知道运行时服务器正在运行。另外，我的IDE中没有红色x标记。该教程告诉我添加到getTutorial.action完成的Web应用程序的URL
中以呈现success.jsp视图。

但是，我在url处收到此错误localhost:8080/Struts2Starter/getTutorial.action：

message /Struts2Starter/getTutorial.action

description The requested resource is not available.

错误日志告诉我：

    SEVERE: Dispatcher initialization failed
    Unable to load configuration. - action - file:/Users/jasonrodriguez/Java/apache-tomcat-7.0.47/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:76

SEVERE: Dispatcher initialization failed
Unable to load configuration. - action - file:/Users/jasonrodriguez/Java/apache-tomcat-7.0.47/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:76
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
    at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)
    at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)
    at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
    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:744)
Caused by: Action class [org.koushik.javabrains.TutorialAction] not found - action - file:/Users/jasonrodriguez/Java/apache-tomcat-7.0.47/wtpwebapps/Struts2Starter/WEB-INF/classes/struts.xml:10:76
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:482)
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:426)
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:552)
    at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:292)
    at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
    at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:250)
    at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
    ... 16 more

SEVERE: Error filterStart

我的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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>Struts2Starter</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

<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>

</web-app>

我的struts.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>

    <package name="default" extends="struts-default">

        <action name="getTutorial" class="org.koushik.javabrains.TutorialAction">
            <result name="success">/success.jsp</result>
            <result name="failure">/error.jsp</result>
        </action>

    </package>

</struts>

我的TutorialAction.java：

package org.koushik.javabrains.action;

public class TutorialAction {

    public String execute() {
        System.out.println("Hello from execute");
        return"success";
    }
}

我的success.jsp视图：

<%@ page language="java" contentType="text/html; charset=US-ASCII"
    pageEncoding="US-ASCII"%>
<!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=US-ASCII">
<title>Insert title here</title>
</head>
<body>
    Success Page!
</body>
</html>

我正在努力解决此问题。在Rails中，我会抛出a，binding.pry但是在这里我丝毫没有提示如何进行故障排除。我所能说的最好，也许是某个地方的路由混乱了。任何见解都会非常有帮助，谢谢！