Bean create & use

Question

Hi All,
I have problem with a jsp page which use a bean! Perhaps I get wrong when I compile the bean file "Login.java" or I place "Login.class" in wrong place! Can you tell me where I must place compiled file in TOMCAT folder?
The error displayed is:
C:\jakarta-tomcat-4.1.30\work\Standalone\localhost\examples\jsp\prove\process_jsp.java:43: cannot resolve symbol
symbol : class Login
location: class org.apache.jsp.process_jsp
Login idHandler = null;
^
An error occurred at line: 1 in the jsp file: /jsp/prove/process.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.30\work\Standalone\localhost\examples\jsp\prove\process_jsp.java:45: cannot resolve symbol
symbol : class Login
location: class org.apache.jsp.process_jsp
idHandler = (Login) pageContext.getAttribute("idHandler", PageContext.REQUEST_SCOPE);
^
An error occurred at line: 1 in the jsp file: /jsp/prove/process.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.30\work\Standalone\localhost\examples\jsp\prove\process_jsp.java:48: cannot resolve symbol
symbol : class Login
location: class org.apache.jsp.process_jsp
idHandler = (Login) java.beans.Beans.instantiate(this.getClass().getClassLoader(), "Login");
^
3 errors
This is process.jsp pagecode:
<%@ page import="java.util.*" %>
<jsp:useBean id="idHandler" class="Login" scope="request">
<jsp:setProperty name="idHandler" property="*"/>
</jsp:useBean>
<%
if (idHandler.validate()){
%>
<jsp:forward page="success.jsp"/>
<%
} else
%>
<jsp:forward page="retry.jsp"/>
<%
%>
...and this Login.java file code
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 people;";//Registration;";
     String DbUserName="";
     String DbPassword="";
     String finalUser="";
     try {
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          Connection con=DriverManager.getConnection("jdbc:odbc:register");
          Statement stat=con.createStatement();
          ResultSet rst=stat.executeQuery(query);
          while(rst.next())
               DbUserName=rst.getString("UserName");
               DbPassword=rst.getString("Password");
               if (username2.equals(DbUserName) && password2.equals(DbPassword))
                    break;
          return true;
     }catch(Exception e)
          e.printStackTrace();
          return false;
Can you help me???
Thank's

Answer 1

hai
beans are generally placed in package specific folders.
copy the classfiles into classes directory of tomact
tomcat/webapps/ROOT/WEB-INF/classes/<packagename>/*.class
in jsp class="<packagename>.Login" try this it will work