Create Login Page using Servlet

Login.html

<!DOCTYPE html> <html lang="en"> <head><meta charset="utf-8"><title>Login</title><link rel="stylesheet" type="text/css" href="style.css" /></head>

<body>

<form action="/samplepro/login"> <h1>Login Form</h1>

<div>

<div>

</div>

<div>

<a href="#">Lost your password?</a>

<a href="#">Register</a>

</div>

</form>

</section></div>

</body>

</html>

Servlet login: Login.java

package com.pack;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import javax.servlet.ServletConfig;
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 javax.servlet.http.HttpSession;

/**
* Servlet implementation class login
*/
@WebServlet("/login")
public class login extends HttpServlet
{
private static final long serialVersionUID = 1L;
Connection con=null;
PreparedStatement ps=null;
ResultSet rs=null;
int flag=0;
public void init(ServletConfig config)throws ServletException
{
try
{
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/gateschema","root","root");
}
catch (Exception e)
{
e.printStackTrace();
}
}
public void destroy()
{
try
{
con.close();
ps.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
doPost(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
PrintWriter pw=response.getWriter();
String uid=request.getParameter("username");
String Pwd=request.getParameter("password");
HttpSession session=request.getSession();

if(con!=null)
{
try
{
Statement stmt=con.createStatement();
rs=stmt.executeQuery("Select * from user;");
while(rs.next())
{
if(uid.equals(rs.getString(4)) && Pwd.equals(rs.getString(6)))
{
String tempFname=rs.getString(2);
String tempLname=rs.getString(3);
session.setAttribute("fname",tempFname);
session.setAttribute("lname",tempLname);
flag=0;
break;
}
else
{
flag=1;

}
}
if(flag==1)
{
response.sendRedirect("/samplepro/login.html");
}
else
{
pw.print("welcome jaya");
response.sendRedirect("/samplepro/User");
}
}
catch (SQLException e)
{

e.printStackTrace();
}
}
}

}

Servlet: User.java

package com.pack;

import java.io.IOException;
import java.io.PrintWriter;

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 javax.servlet.http.HttpSession;

/**
* Servlet implementation class User
*/
@WebServlet("/User")
public class User extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public User() {
super();
// TODO Auto-generated constructor stub
}

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
HttpSession session=request.getSession(false);
String n=(String)session.getAttribute("fname");
String l=(String)session.getAttribute("lname");
out.print("Hello "+n + " " +l);
out.close();

}
catch(Exception e){System.out.println(e);}
} // TODO Auto-generated method stub

}

Database: User

User_ID	First_Name	Lasr_Name	Email_ID	User_Mobile	Password
1	annie	jambhulkar	annie.jambhulkar@gmail.com	9999999999	annie123
2	Anaya	gadge	Anaya.gadge@gmail.com	8888888888	anaya123

The Art of Technology

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Tuesday, June 30, 2015

Create Login Page using Servlet

Login.html

Servlet login: Login.java

Servlet: User.java

Database: User

When we run above application, we get response like below images

Screenshots:

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The Art of Technology

Breaking

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Tuesday, June 30, 2015

Create Login Page using Servlet

Login.html

Servlet login: Login.java

Servlet: User.java

Database: User

When we run above application, we get response like below images

Screenshots:

Post Top Ad

Author Details

Social Media Icons

Popular Posts

Search This Blog

Latest News

Categories

Socialize

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More Post

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