Eclipse在运行tomcat时未检测到任何错误，但找不到bean

Question

Eclipse does not detect any errors in the code but when I run it through tomcat, it won't render in the browser because it cannot locate the resource. The console says

Unable to load configuration. - bean - jar:file:/Users/jasonrodriguez/Java/apache-tomcat-7.0.47/wtpwebapps/TutorialFinder/WEB-INF/lib/struts2-gxp-plugin-2.3.15.3.jar!/struts-plugin.xml:8:162 

but my library path is connected to lib like it is supposed to and I have the whole library of jars. Am I missing something?

Here is my action class :

package org.koushik.javabrains.action;

import org.koushik.javabrains.service.TutorialFinderService;

public class TutorialAction {
    public String execute() {
        TutorialFinderService tutorialFinderService = new TutorialFinderService();
        String bestTutorialSite = tutorialFinderService.getBestTutorialSite();
        System.out.println(bestTutorialSite);
        return "success";
    }

}

struts.xml :

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
    <package name="default" namespace="/tutorials" extends="struts-default">
        <action name="getTutorial" class="org.koushik.javabrains.action.TutorialAction">
            <result name="success">/success.jsp</result>
            <result name="failure">/error.jsp</result>
        </action>
    </package>
</struts>

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>TutorialFinder</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>

Here is a screenshot of my file hierarchy :

Here are my jars :

Answer 1

Your dependencies are used only at compile time. To include library (like struts) you must configure "Deployment Assembly" in project's properties. Here you can find a description of the feature.

Answer 2

It seems you have created a Eclipse library that point to the lib folder of the Struts2 distro and added it to classpath (or build path whatever they call it).

It's not bad if you want your project to be compiled, it has to resolve dependencies to the configured libraries. But the problem is along with compile time dependencies you have added a runtime dependencies that are all deployed to the application server when you run your application. It's not good.

As far as I remember a newer versions of Eclipse has something called "web deployment assembly" and it's described here . Combined with maven you can get better control applying scopes to this feature.