I create a new component in the hot-deploy.
first, i just add a index.jsp in the component's webapp,everything is ok.

I want to test the GenericDelegator  ,so I create a servlet for test. 

this is servlet code:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package qiya.deng.servlet;

import java.io.*;
import java.net.*;

import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.Vector;
import javax.servlet.*;
import javax.servlet.http.*;
import org.ofbiz.entity.GenericDelegator;
import org.ofbiz.entity.GenericEntity;

/**
 *
 * @author qiya
 */
public class ViewMethod extends HttpServlet {
   
    /** 
    * Processes requests for both HTTP <code>GET</code> and
<code>POST</code> methods.
    * @param request servlet request
    * @param response servlet response
    */
    protected void processRequest(HttpServletRequest request,
HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        
        
                    out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ViewMethod</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet ViewMethod at " +
request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");

        
        try {
            
                    GenericDelegator delegator;
        StringBuilder xmlString = new StringBuilder();
        List productStoresList = new Vector();
        try {
            delegator = GenericDelegator.getGenericDelegator("default");
            productStoresList = delegator.findAll("ProductStore");

            Iterator itera = productStoresList.iterator();
            Map newmap;
            xmlString.append("<ProductStores>");
            while (itera.hasNext()) {
                xmlString.append("<ProductStore>");
                GenericEntity elem = (GenericEntity) itera.next();
                newmap = new HashMap();
                newmap = elem.getAllFields();

                Set returnMap = newmap.entrySet();
                for (Iterator i1 = returnMap.iterator(); i1.hasNext();) {
                    
                    Entry en = (Entry) i1.next();
                    xmlString.append("<" + en.getKey().toString() + ">");
                    xmlString.append(en.getValue());
                    xmlString.append("</" + en.getKey().toString() + ">");
                }
                xmlString.append("</ProductStore>");
            }
            xmlString.append("</ProductStores>");
        } catch (Exception exe) {
            exe.printStackTrace();
        }
        System.out.println(xmlString.toString());
        out.println(xmlString.toString());


        } finally { 
            out.close();
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods.
Click on the + sign on the left to edit the code.">
    /** 
    * Handles the HTTP <code>GET</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doGet(HttpServletRequest request, HttpServletResponse
response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
    * Handles the HTTP <code>POST</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doPost(HttpServletRequest request, HttpServletResponse
response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
    * Returns a short description of the servlet.
    */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}



when i calling the servlet ,there is something wrong information in the
console.


java.lang.ClassCastException: org.ofbiz.geronimo.GeronimoTransactionFactory
        at
org.ofbiz.entity.transaction.TransactionFactory.getTransactionFactory
(TransactionFactory.java:67)
        at
org.ofbiz.entity.transaction.TransactionFactory.getUserTransaction(Tr
ansactionFactory.java:90)
        at
org.ofbiz.entity.transaction.TransactionUtil.begin(TransactionUtil.ja
va:67)
        at
org.ofbiz.entity.transaction.TransactionUtil.begin(TransactionUtil.ja
va:58)
        at
org.ofbiz.entity.GenericDelegator.findCountByCondition(GenericDelegat
or.java:1854)
        at
org.ofbiz.entity.GenericDelegator.findCountByCondition(GenericDelegat
or.java:1845)
        at
org.ofbiz.entity.GenericDelegator.findCountByAnd(GenericDelegator.jav
a:1840)
        at org.ofbiz.entity.util.EntityCrypto.<init>(EntityCrypto.java:62)
        at
org.ofbiz.entity.GenericDelegator.<init>(GenericDelegator.java:200)
        at
org.ofbiz.entity.GenericDelegator.getGenericDelegator(GenericDelegato
r.java:119)
        at qiya.deng.servlet.ViewMethod.processRequest(ViewMethod.java:56)
        at qiya.deng.servlet.ViewMethod.doGet(ViewMethod.java:99)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:688)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:213)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:178)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:126)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:105)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:107)
        at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:
541)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:148)
        at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.p
rocessConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFol
lowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:684)
        at java.lang.Thread.run(Thread.java:595)



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