loginservlet.java~3~

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package servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import dbconn.*;
import java.sql.*;

public class LoginServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        String userName = request.getParameter("userName");
        String userPass = request.getParameter("userPass");

        Connection con = null;
        PreparedStatement ps = null;
        ResultSet rs = null;
        con = Dbcon.getCon();

        try{
            String sql = "select * from userTbl where userName=? and userPass=?";
        }catch(Exception err){
            System.err.println(err.getMessage().toString());
        }
        out.close();
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy() {
    }
}