adminlog.java

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/*
 * AdminLog.java
 *
 * Created on 2008年5月9日, 下午6:43
 */

package Controller;

import java.io.*;
import java.net.*;
import java.sql.*;
import Model.DataOperation;
import javax.servlet.*;
import javax.servlet.http.*;

/**
 *
 * @author Administrator
 * @version
 */
public class AdminLog 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();
        String name=request.getParameter("name");
        String pwd=request.getParameter("Pwd");
        out.println(name);
        out.println(pwd);
        DataOperation db=new DataOperation();
        Connection con=db.getConnection();
        try{
            Statement st=con.createStatement();
            ResultSet rs=st.executeQuery("select Pwd from Admins where name='"+name+"'");
            rs.next();
            String dbpwd=rs.getString("Pwd");
            if(dbpwd==null)
            {
            out.println("您不是管理员");
             }
            else if(dbpwd.equals(pwd))
            {
                response.sendRedirect("Admin.html");
            }
            else
            {
             out.println("输入密码错误");
             }
        }
        catch(Exception e)
        {
            out.println("登陆失败");
        }
        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>
}