EclipseJena和tomcat查询

EclipseJena和tomcat查询,eclipse,servlets,sparql,jena,Eclipse,Servlets,Sparql,Jena,Tomcat问题: 输入Informe de execpción 我希望我的孩子们能过得更好 描述服务商的内部错误 这是我的要求 例外情况 javax.servlet.ServletException:La ejeucción del servlet lanzóuna 原因除外 java.lang.NoClassDefFoundError:com/hp/hpl/jena/rdf/model/ModelFactory doPost(rdf.java:55) javaservlet.http.Htt

Tomcat问题:

输入Informe de execpción

我希望我的孩子们能过得更好

描述服务商的内部错误 这是我的要求

例外情况

javax.servlet.ServletException:La ejeucción del servlet lanzóuna 原因除外

java.lang.NoClassDefFoundError:com/hp/hpl/jena/rdf/model/ModelFactory doPost(rdf.java:55) javaservlet.http.HttpServlet.service(HttpServlet.java:637) javax.servlet.http.HttpServlet.service(HttpServlet.java:717)causa 雷兹

java.lang.ClassNotFoundException: com.hp.hpl.jena.rdf.model.ModelFactory org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526) doPost(rdf.java:55) javaservlet.http.HttpServlet.service(HttpServlet.java:637) javaservlet.http.HttpServlet.service(HttpServlet.java:717)nota La 档案馆内的错误原因综合报告 ApacheTomcat/6.0.36

java.lang.NoClassDefFoundError:com/hp/hpl/jena/rdf/model/ModelFactory doPost(rdf.java:55)


jena jar不在webapp的运行时类路径上。

谢谢,我解决了这个问题:)只是需要更新tomcat来识别.jar
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.hp.hpl.jena.ontology.OntModel;
import com.hp.hpl.jena.rdf.model.*;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.util.FileManager;
import com.hp.hpl.jena.sparql.*;
import java.io.InputStream;
import com.hp.hpl.jena.query.*;
import com.hp.hpl.jena.util.FileManager;
import com.hp.hpl.jena.ontology.*;

/**
 * Servlet implementation class rdf
 */
public class rdf extends HttpServlet {
    private static final long serialVersionUID = 1L;


    /**
     * @see HttpServlet#HttpServlet()
     */
    public rdf() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub

    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        String inputFileName = "/home/jarboox/Documentos/Eclipse/workspace/Sparql/src/tres.rdf";

        try {

              //create the reasoning model using the base
              OntModel inf = ModelFactory.createOntologyModel();

              // use the FileManager to find the input file
              InputStream in = FileManager.get().open(inputFileName);
              if (in == null) {
                throw new IllegalArgumentException("File: " + inputFileName + " not found");
              }

              inf.read(in, "");

        } catch (Exception e) {
            System.out.println(e.getMessage());    
          } 
    }

}