?? adminloginservlet.java
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package com.zte.exam.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.zte.database.Database;
public class AdminLoginServlet extends HttpServlet {
/**
* Constructor of the object.
*/
public AdminLoginServlet() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String username=request.getParameter("textfield");
String password=request.getParameter("textfield2");
System.out.println(username+"*)&&&&&&&&"+password);
String sql="select admname,admpass from exam_admin";
Database db = new Database();
ResultSet rs= db.query(sql);
try {
while(rs.next())
{
String user_name = rs.getString("admname");
String pass_word = rs.getString("admpass");
System.out.println(user_name+"******"+pass_word);
if(username.equals(user_name)&&password.equals(pass_word))
{
System.out.println(user_name+"******"+pass_word);
response.sendRedirect("admin/loginsuccess.jsp");
return;
}else
{
continue;
}
}
if(!rs.next())
{
response.sendRedirect("adminlogin.jsp?flag=nouser");
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
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