通过mysql使用jsp和servlet对web应用程序进行身份验证
我在一个web应用程序上工作，一直在使用身份验证代码，我已经在eclipse上使用hibernate完成了连接，现在我提交身份验证时，它是关于身份验证的。什么都没有发生，请帮助我，我是新手。 以下是JSP文件：通过mysql使用jsp和servlet对web应用程序进行身份验证,mysql,jsp,servlets,login,web,Mysql,Jsp,Servlets,Login,Web,我在一个web应用程序上工作，一直在使用身份验证代码，我已经在eclipse上使用hibernate完成了连接，现在我提交身份验证时，它是关于身份验证的。什么都没有发生，请帮助我，我是新手。 以下是JSP文件： <%@ page language="java" contentType="text/html; charset=windows-1256" pageEncoding="windows-1256"%> <!DOCTYPE html PUBLIC "-//
<%@ page language="java" contentType="text/html; charset=windows-1256"
pageEncoding="windows-1256"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Survey Project</title>
<link rel="stylesheet" href="css/screen.css" type="text/css" media="screen" title="default" />
<!-- jquery core -->
<script src="js/jquery/jquery-1.4.1.min.js" type="text/javascript"></script>
<!-- Custom jquery scripts -->
<script src="js/jquery/custom_jquery.js" type="text/javascript"></script>
<!-- MUST BE THE LAST SCRIPT IN <HEAD></HEAD></HEAD> png fix -->
<script src="js/jquery/jquery.pngFix.pack.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function(){
$(document).pngFix( );
});
</script>
</head>
<body id="login-bg" >
<!-- Start: login-holder -->
<div id="login-holder">
<!-- start logo -->
<div id="logo-login"></div>
<!-- end logo -->
<div class="clear"></div>
<form name="form1" method="post" action="../LoginServlet">
<!-- start loginbox ................................................................................. -->
<div id="loginbox">
<!-- start login-inner -->
<div id="login-inner">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<th>Username</th>
<td><input type="text" class="login-inp" id="login" /></td>
</tr>
<tr>
<th>Password</th>
<td><input type="password" value="" onfocus="this.value=''" class="login-inp" id="pass" /></td>
</tr>
<tr>
<th></th>
<td><input type="button" class="submit-login" id="submit" /></td>
</tr>
</table>
</div>
<!-- end login-inner -->
<div class="clear"></div>
</div>
<!-- end loginbox -->
</form>
<!-- start forgotbox ................................................................................... -->
<div id="forgotbox">
<div id="forgotbox-text">Please send us your email and we'll reset your password.</div>
<!-- start forgot-inner -->
<div id="forgot-inner">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<th>Email address:</th>
<td><input type="text" value="" class="login-inp" /></td>
</tr>
<tr>
<th> </th>
<td><input type="button" class="submit-login" /></td>
</tr>
</table>
</div>
<!-- end forgot-inner -->
<div class="clear"></div>
<a href="" class="back-login">Back to login</a>
</div>
<!-- end forgotbox -->
</div>
<!-- End: login-holder -->
</body>
</html>
}是否有任何错误消息？您是否尝试过在servlet中放置断点或跟踪以查看发生了什么？（或者，如果它甚至被调用）+1，用于将数据库代码放在它所属的位置：在servlet中！
package stage.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import stage.Personnel;
import stage.dao.HibernateSessionFactory;
import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;
@WebServlet(name = "LoginServlet", urlPatterns = {"/LoginServlet"})
public class LoginServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, HibernateException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
String login = request.getParameter("login");
String pass = request.getParameter("pass");
// creation d'un request dispatcher
RequestDispatcher rd = null;
Session s = HibernateSessionFactory.getSessionFactory().openSession();
Transaction trs = s.beginTransaction();
Query q = s.createQuery("from personnel where login='"+login+"'");
List<Personnel> l = q.list();
if(l.isEmpty())
{
rd = request.getServletContext().getRequestDispatcher("/pages/echec1.jsp");
}
else{
Personnel p = l.get(0);
if(p.getPassword().equals(pass))
{
request.setAttribute("operation", "affichage");
rd = request.getServletContext().getRequestDispatcher("/AdminServlet");
}
else{
rd = request.getServletContext().getRequestDispatcher("/pages/echec2.jsp");
}
rd.forward(request, response);
}
}
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
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
processRequest(request, response);
} catch (HibernateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
processRequest(request, response);
} catch (HibernateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Returns a short description of the servlet.
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>