中文XML论坛--一找無法判讀到jena.query.QueryFactory[求助]

贴子主题：一找無法判讀到jena.query.QueryFactory[求助]

本主题类别:

首先說明一下這個程式的用意
利用javabean的方式來讀取本體樹，之後再由jsp來呈現查詢出來的結果。
下面的程式，是小弟由main檔java application改編而成的。
但很奇怪的是，當在java application時執行都沒問題，不會出現什麼沒有class的問題。
但一用到jsp就會出錯~~
不知道是哪邊出錯了，該導入的jar我也都檢查過了~~
但卻還是一直出現~~ NoClassDefFoundError等訊息~~

我的環境: jre1.5.0_07 + tomcat-5.5 + lomboz 3.2.2 + jena 2.5.4

GetSearchResultH.java檔

以下内容为程序代码:

public class GetSearchResultH
{
  public GetSearchResultH(){}
   InfModel infModel;
   private String querystr="Select ?s ?p ?v where{ ?s ?p ?v. }";
   private String filePath ="C:\\ont\\test.owl";
   public String getresults()
   {
  System.out.println("into getresults");
  Query query = null;
  QueryExecution qe= null;
  query = QueryFactory.create(querystr);
  qe = QueryExecutionFactory.create(query, getinfmodel1());
  try {
  ResultSet results = qe.execSelect();
        for ( ; results.hasNext() ; ) {
            QuerySolution soln = results.nextSolution() ;
            System.out.println("soln " + soln);
        }
  }
  finally {
    qe.close();
  }
  return "results";
   }
}

TestBean.jsp檔

以下内容为程序代码:

<%@ page language="java" contentType="text/html; charset=BIG5"
    pageEncoding="BIG5"%>
<%@ page import ="com.hp.hpl.jena.query.*" %>
<html>
<head>
</head>
<body bgcolor="#ffffff">
<jsp:useBean id="bean1" class="jena.GetSearchResultH"></jsp:useBean>
<form method="get">
<table>
  <%
  System.out.println(bean1.getresults());
  %>
</table>
</form></body></html>

誤錯訊息:

以下内容为程序代码:

HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: com/hp/hpl/jena/query/QueryFactory
  org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:460)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:355)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
javax.servlet.ServletException: com/hp/hpl/jena/query/QueryFactory
  org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:841)
  org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:774)
  org.apache.jsp.TestBean_jsp._jspService(TestBean_jsp.java:124)
  org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
java.lang.NoClassDefFoundError: com/hp/hpl/jena/query/QueryFactory
  jena.GetSearchResultH.getresults(GetSearchResultH.java:105)
  org.apache.jsp.TestBean_jsp._jspService(TestBean_jsp.java:101)
  org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
  org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
  org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
  org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.25 logs.


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