No Persistence provider for EntityManager named User
Bonjour tout monde
j' essaie ajouter dans ma base de donnée des données, j' ai un message d erreur :
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javax.persistence.PersistenceException: No Persistence provider for EntityManager named User
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:56)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at com.vente.implDao.UserImpl.<init>(UserImpl.java:20)
at org.apache.jsp.Adduser_jsp._jspService(Adduser_jsp.java:76)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)
03-janv.-2012 21:05:19 org.apache.catalina.core.StandardContext reload
INFO: Le rechargement de ce contexte a démarré |
voici le code source :
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package com.vente.implDao;
import java.util.ArrayList;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceUnit;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.vente.beans.User;
import com.vente.dao.UserDao;
public class UserImpl implements UserDao {
private static final Log log = LogFactory.getLog(UserImpl.class);
@PersistenceContext
private EntityManager en;
@PersistenceUnit
private EntityManagerFactory emf=Persistence.createEntityManagerFactory("User");
@Override
public void add(User obj) {
try{
en =emf.createEntityManager();
en.getTransaction().begin();
en.persist(obj);
en.getTransaction().commit();
}catch(Exception e){log.error("add user failed :" +e.getMessage());};
}
@Override
public ArrayList<User> findAll() {
ArrayList<User> result=null;
try{
result =(ArrayList<User>)en.createQuery("select from user").getResultList();
}catch(Exception e){log.error("find user failed :" +e);};
return result;
}
@Override
public User findByid(long id) {
// TODO Auto-generated method stub
return null;
}
@Override
public void remove(User obj) {
try{
en.remove(obj);
}catch(Exception e){log.error("add adresse failed", e);};
}
@Override
public void update(User obj) {
// TODO Auto-generated method stub
}
} |
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<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ page import="com.vente.beans.*" %>
<%@ page import="com.vente.gestion.*" %>
<%@ page import="com.vente.controller.*" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@page import="com.vente.implDao.CustomerImpl"%>
<%@page import="com.vente.dao.CustomerDao"%>
<%@page import="com.vente.dao.Dao"%>
<%@page import="com.vente.implDao.UserImpl"%><html xmlns="http://www.w3.org/1999/xhtml">
<%
UserImpl unuser ;
String login =request.getParameter("login");
String password =request.getParameter("password");
unuser = new UserImpl();
User u = new User();
u.setPassword(password);
u.setUsername(login);
session.setAttribute("UserImpl",unuser);
try {
unuser.add(u);
} catch (Exception e) {
System.out.println(" ajout user : " + e.getMessage());
}
response.sendRedirect("AffichUser.jsp");
%> |
merci
