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pro_jsp thread: Bean Component in JSP with MySQL as backend
Message #1 by kmadhumadhavi@y... on Tue, 19 Sep 2000 08:28:15 +0100
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Hi
Check that you have imported java class, than you can use two approach to
instantiate the bean.
1.
<html>
<%@ page language="java" %>
<%@page import="YourBean", java.util.Vector %>
<%
YourBean yourBean = new YourBean();
Vector results = yourBean.callYourMethod();
%>
or 2.
<html>
<%@ page language="java" %>
<%@page import="YourBean", java.util.Vector %>
<jsp:useBean id="yourBean" scope="session" class="yourPackage.YourBean" />
<%
Vector results = yourBean.callYourMethod();
%>
I think that <jsp:useBean /> is not supported in older version of JSP, but
JRun 3.0 supports this tag.
And you should install you class in
JRun/servers/yourServer/yourApp/Web-inf/classes/yourPackage/YourBean.class
If you still have the problem print out from jsp and yourBean debugging
info, and you'll find them in logs/yourServer-out.log to see what's the
problem (your code or paths).
good luck
ljubisak
----- Original Message -----
From: <kmadhumadhavi@y...>
To: Pro_JavaServer_Pages <pro_jsp@p...>
Sent: Tuesday, September 19, 2000 12:28 AM
Subject: [pro_jsp] Bean Component in JSP with MySQL as backend
> I am using MySql as backend database.I wrote a bean component and in its
> constructor I have opened connection to database.In it I have several
> methods which involve in retrieving data from database and returning a
> Vector,int etc or inserting into database.I am creating an instance of the
> class file in my jsp file and am accessing various methods in the bean.I
> uploaded the class file into jrun/classes directory and now the methods
> are not getting executed and not returning back any value.I just need a
> help on this topic.Please guide me what to do as quickly as possible.
>
> ---
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