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📄 denglu.java

📁 一个简单jsp程序
💻 JAVA
字号:
/*
 * denglu.java
 *
 * Created on 2007年11月21日, 上午10:18
 */

package servlet;

import dianping.Chinese;
import dianping.DB;
import java.io.*;
import java.sql.ResultSet;
import java.sql.SQLException;

import javax.servlet.*;
import javax.servlet.http.*;

/**
 *冷漠大神 q 361619004
 * @author Angel
 * @version
 */
public class denglu 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();
        HttpSession session=request.getSession();
        String rand=(String)session.getAttribute("rand");
        Chinese zh=new Chinese();
        DB db=new DB();
        String yanzheng=request.getParameter("yanzheng");
        String user=zh.getGBK(request.getParameter("user"));
        String password=zh.getGBK(request.getParameter("password"));
        if(!rand.equalsIgnoreCase(yanzheng))
        {
            response.sendRedirect("errors.jsp?error=dlyanzheng");
        }else
        {
            ResultSet rs=db.MSquery("select name,password,jifen from users where name='"+user+"' and password='"+password+"'");
            try {
                if(rs.next())
                {
                   String jifen=rs.getString("jifen");
                   session.setAttribute("jifen",jifen);
                   db.close();
                    session.setAttribute("username",user);
                    response.sendRedirect("errors.jsp?error=dengluok");
                }else
                {
                    response.sendRedirect("errors.jsp?error=userpass");
                }
            } catch (SQLException ex) {
                ex.printStackTrace();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
            
        }
        /* TODO output your page here
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Servlet denglu</title>");
        out.println("</head>");
        out.println("<body>");
        out.println("<h1>Servlet denglu at " + request.getContextPath () + "</h1>");
        out.println("</body>");
        out.println("</html>");
         */
        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>
}

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