problem with jsp page and java bean

[albert sie]

here is my jsp page:

 <%@ page import="java.util.*" %>
<jsp:useBean id="idHandler" class="beans.Login" scope="request"/>
<jsp:setProperty name="idHandler" property="*"/>
 

<% 
   if (idHandler.validate()) {
%>
<jsp:forward page="success.jsp"/>
<%
   }  else {
%>
<jsp:forward page="index.jsp"/>
<%
   }
%>   

this is my bean file:

  package beans;
import java.sql.*;
 
 public class Login {
 
   private String username = "";
 private String password = "";
 
   public Login() {
  }
 
  public void setUsername(String username) {
     this.username = username;
  }
 
  public void setPassword(String password) {
     this.password = password;
   }
 

 public boolean  authenticate(String username2,
 String password2) {
  String query="select * from login;";
   String DbUserName="";
   String DbPassword="";
   String finalUser="";
  try {
  Class.forName("com.mysql.jdbc.Driver");
   Connection
 con=DriverManager.getConnection("jdbc:mysql://localhost/attendance","root","");
   Statement stat=con.createStatement();
   ResultSet rst=stat.executeQuery(query);
   while(rst.next())
 
  {
   DbUserName=rst.getString("id");
 
  DbPassword=rst.getString("password");
 
   if (username2.equals(DbUserName) &&
 password2.equals(DbPassword)) {
 
 break;
     }
 

   }
 return true;
 }catch(Exception e){
 
 e.printStackTrace();
 return false;
 }
}}
 

  

This is my error message:

org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 6 in the jsp file: /process2.jsp
Generated servlet error:
The method validate() is undefined for the type Login


org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

i solve this problem for several day already still cannot get it... any one expert here can help me oversee where is my error
thank you...

regards,
albert

[Bear Bibeault]

The method validate() is undefined for the type Login

That pretty much says it all.

[Muhammad Saifuddin]

compiler suggestion:
use authenticate method instead of validate or defined this inside Login bean in order to give you response