student registration example

1.reg.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>login</title>
</head>
<body>

<script type="text/javascript">

function validateAndSubmit() 
{
    var name = document.f1.id.value;  //first textbox document.formname.elementname.value
    var name1=document.f1.pw.value;

    /*if(f1.login[0].checked==false || f1.login[1].checked==false)
    {
        alert("select the login type");
        return false;*/


     if(name ==""  ||name == null ) {
        alert("user id cannot be blank!!" );
        return false;
    }
    else if(name1=="" ||name1==null)
    {
        alert("enter the password" );
        return false;
    }



    document.f1.action ="Servlet";
    document.f1.submit();

    }
</script>

<form  name="f1" >
<form action="Servlet" method="get">

<center>


<font color="253556">USERNAME</font>
<input type="text" name="id"/>


<font color="253556">PASSWORD</font>
<input type="password" name="pw"/>


</center><br>
<center><b><input type="submit" value="Submit"  onclick="javascript:validateAndSubmit();"/></b></center>
<br>
<a href="register.jsp">REGISTER HERE</a>
 </form>     
</body>
</html>

2,register.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

    <head>
    <title>example</title>
    <script type="text/javascript">

function validateAndSubmit() 
{
    var name = document.f1.id.value;  //first textbox document.formname.elementname.value
    var name1=document.f1.pw.value;

    /*if(f1.login[0].checked==false || f1.login[1].checked==false)
    {
        alert("select the login type");
        return false;*/


     if(name ==""  ||name == null ) {
        alert("user id cannot be blank!!" );
        return false;
    }
    else if(name1=="" ||name1==null)
    {
        alert("enter the password" );
        return false;
    }



    document.f1.action ="Servlet";
    document.f1.submit();

    }
</script>


<form name="f1" onsubmit="return validateAndSubmit()" action="Regservlet" mehtod ="post">

<center>


<font color="253556">USERNAME</font>
<input type="text" name="id"/>


<font color="253556">PASSWORD</font>
<input type="password" name="pw"/>


</center><br>
<center><b><input type="submit" value="Regsiter"  /></b></center>
</form>
    </body>
</html>

3.Regservlet.java

package servlets;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class Regservlet
 */
public class Regservlet extends HttpServlet {
    private static final long serialVersionUID = 1L;


    /**
     * Default constructor. 
     */
    public Regservlet() {
        // 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 {
        // TODO Auto-generated method stub

        try
        {
         UserBean user = new UserBean();
         user.setUserName(request.getParameter("id"));
         user.setPassword(request.getParameter("pw"));

         user=UserDAO.regist(user);
         if(user.isValid())
         {
             HttpSession session = request.getSession(true);
             session.setAttribute("currentuser", user);
             response.sendRedirect("welcome.jsp");
         }
         else
         {
             System.out.println("sorry not inserted");
             response.sendRedirect("Invalid.jsp");
         }
        }
        catch (Throwable theException)      
        {
            System.out.println(theException); 
        }

    }

}

4.userbean.java

package servlets;

public class UserBean {
private String UserName;
private String Password;
private boolean valid;




public boolean isValid() {
    return valid;
}
public void setValid(boolean valid) {
    this.valid = valid;
}
public String getUserName() {
    return UserName;
}
public void setUserName(String userName) {
    UserName = userName;
}
public String getPassword() {
    return Password;
}
public void setPassword(String password) {
    Password = password;
}
}

5.userDao.java

package servlets;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

public class UserDAO {
    static Connection con;
    static Statement stmt;


    public static UserBean regist(UserBean user) {
        // TODO Auto-generated method stub

        String username=user.getUserName();
        String pass=user.getPassword();
        String query="insert into register values('"+username+"','"+pass+"')";


        try {
            con = ConnectionManager.getConnection();
            stmt=con.createStatement();
            int rows = stmt.executeUpdate(query);
            if(rows!=0)
            {
                user.setValid(true);
            }
            else
                user.setValid(false);

        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return user;
    }
}

6.connectionmanager.java

package servlets;


    import java.sql.*;


       public class ConnectionManager {

          static Connection con;
          static String url;

          public static Connection getConnection()
          {

             try
             {

                Class.forName("oracle.jdbc.driver.OracleDriver");
                System.out.println(" Defing the URL");

                 String url= "jdbc:oracle:thin:@172.24.137.30:1521:ORA10G";
                // assuming "DataSource" is your DataSource name

               // Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

                try
                {   


                    System.out.println(" Defing the username");
                    String username= "e5"; 
                    System.out.println(" Defing the password");
                    String password= "";
                    System.out.println(" Defing the connection");
                    con = DriverManager.getConnection(url,username,password); 
                    System.out.println(" connection done" +con);





                }

                catch (SQLException ex)
                {
                   ex.printStackTrace();
                }
             }

             catch(ClassNotFoundException e)
             {
                System.out.println(e);
             }

          return con;
    }

}

Thanks

View Answers

January 17, 2012 at 7:18 PM

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>login</title>
</head>
<body>

<script type="text/javascript">

function validateAndSubmit() 
{
    var name = document.f1.id.value;  //first textbox document.formname.elementname.value
    var name1=document.f1.pw.value;

    /*if(f1.login[0].checked==false || f1.login[1].checked==false)
    {
        alert("select the login type");
        return false;*/


     if(name ==""  ||name == null ) {
        alert("user id cannot be blank!!" );
        return false;
    }
    else if(name1=="" ||name1==null)
    {
        alert("enter the password" );
        return false;
    }



    document.f1.action ="Servlet";
    document.f1.submit();

    }
</script>

<form  name="f1" >
<form action="Servlet" method="get">

<center>


<font color="253556">USERNAME</font>
<input type="text" name="id"/>


<font color="253556">PASSWORD</font>
<input type="password" name="pw"/>


</center><br>
<center><b><input type="submit" value="Submit"  onclick="javascript:validateAndSubmit();"/></b></center>
<br>
<a href="register.jsp">REGISTER HERE</a>
 </form>     
</body>
</html>

2.register.jsp


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

    <head>
    <title>example</title>
    <script type="text/javascript">

function validateAndSubmit() 
{
    var name = document.f1.id.value;  //first textbox document.formname.elementname.value
    var name1=document.f1.pw.value;

    /*if(f1.login[0].checked==false || f1.login[1].checked==false)
    {
        alert("select the login type");
        return false;*/


     if(name ==""  ||name == null ) {
        alert("user id cannot be blank!!" );
        return false;
    }
    else if(name1=="" ||name1==null)
    {
        alert("enter the password" );
        return false;
    }



    document.f1.action ="Servlet";
    document.f1.submit();

    }
</script>


<form name="f1" onsubmit="return validateAndSubmit()" action="Regservlet" mehtod ="post">

<center>


<font color="253556">USERNAME</font>
<input type="text" name="id"/>


<font color="253556">PASSWORD</font>
<input type="password" name="pw"/>


</center><br>
<center><b><input type="submit" value="Regsiter"  /></b></center>
</form>
    </body>
</html>

January 18, 2012 at 12:08 PM

Please visit the following links:

http://www.roseindia.net/jsp/user-registration-form-using-jsp.shtml

http://www.roseindia.net/jsp/javascriptpagerefresh.shtml