Bosch Ricardo wrote:
> What exactly is the code a JSP page compiles when you put in a usebean tag.
> Like as if I was trying to use/create a session bean in a servlet. I'd also
> like to come up with some way to redirect a user who directly tries to go to
> page that uses a bean , when they should be coming from a servlet.
>
> thanks
> rick
>
> ===========================================================================
> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
> FAQs on JSP can be found at:
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
Well you can find the place where your JSP enginne puts the .java file that it
creates to compile the resulting servlet.
in JRun this location is
<install-path>/jrun/jsm-default/services/jseweb/servlets/jsp/Docs/
and for your info here is one of my test JSP's and the .java file generated from
it. Note that it is using JRun so if you use a different engine your .java file
will be different.
Karl
page hellouser.jsp:-
<%@ page import="com.kms.beans.NameHandler" %>
<jsp:useBean id="mybean" scope="page" class="com.kms.beans.NameHandler"
type="com.kms.beans.NameHandler" >
<jsp:setProperty name="mybean" property="*" />
</jsp:useBean>
<html>
<head><title>Hello, User</title></head>
<body bgcolor="#ffffff" background="background.gif">
<%@ include file="dukebanner.html" %>
<table border="0" width="700">
<tr>
<td width="150"> </td>
<td width="550">
<h1>My name is Bart. What's yours?</h1>
</td>
</tr>
<tr>
<td width="150" </td>
<td width="550">
<form method="get">
<input type="text" name="username" size="25">
<br>
<input type="submit" value="Submit">
<input type="reset" value="Reset">
</td>
</tr>
</form>
</table>
<%
if ( request.getParameter("username") != null ) {
%>
<%@ include file="response.jsp" %>
<%
}
%>
</body>
</html>
the heollouser.java file:-
// Generated by JRun, do not edit
package jsp.Docs;
import java.io.*;
import java.util.*;
import java.net.*;
import java.beans.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import com.livesoftware.jsp.*;
import com.livesoftware.scripting.*;
import com.kms.beans.NameHandler;
public class hellouser extends HttpJSPServlet implements JRunJspPage
{
public void _jspService(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException
{
ServletConfig config = getServletConfig();
ServletContext application = config.getServletContext();
Object page = (Object) this;
PageContext pageContext =
JspFactory.getDefaultFactory().getPageContext(this, request, response, null,
true,8192, true);
JspWriter out = pageContext.getOut();
HttpSession session = request.getSession(true);
response.setContentType("text/html");
Object __mybean_was_created[] = new Object[1];
com.kms.beans.NameHandler mybean = (com.kms.beans.NameHandler)
JSPRuntime.instantiateBean("mybean", "com.kms.beans.NameHandler", "page",
__mybean_was_created, pageContext, request, session, application);
if(((Boolean) __mybean_was_created[0]).booleanValue()) {
JSPRuntime.setBeanProperty(mybean, "mybean", "*", request);
}
out.print("\n\n\n<html>\n<head><title>Hello, User</title></head>\n<body
bgcolor=\"#ffffff\" background=\"background.gif\">\n \n <table border=\"0\"
width=\"400\" cellspacing=\"0\" cellpadding=\"0\">\n\n<tr>\n<td height=\"150\"
width=\"150\"> </td>\n<td width=\"250\"> </td>\n</tr>\n\n<tr>\n<td
width=\"150\"> </td>\n<td align=\"right\" width=\"250\"> \n\n<img
src=\"../Arts/BartMoon.gif\"> </td>\n</tr>\n\n </table>\n<br>");
out.print(" \n <table border=\"0\" width=\"700\">\n
<tr>\n <td width=\"150\"> </td>\n <td width=\"550\">
\n <h1>My name is Bart. What's yours?</h1>\n </td>\n
</tr>\n <tr>\n <td width=\"150\" </td>\n <td
width=\"550\">\n <form method=\"get\">\n <input type=\"text\"
name=\"username\" size=\"25\">\n <br>\n <input type=\"submit\"
value=\"Submit\">\n <input type=\"reset\" value=\"Reset\">\n
</td>\n </tr>\n </form>\n </table>\n\n ");
if ( request.getParameter("username") != null ) {
out.print("\n \n <table border=\"0\" width=\"700\">\n<tr>\n<td
width=\"150\"> </td>\n\n<td width=\"550\">\n\n<h1>Hello, ");
out.print(JSPRuntime.getBeanProperty(mybean, "mybean", "username"));
out.print("!\n</h1>\n \n</td>\n</tr>\n</table>\n\n\n");
}
out.print("\n\n</body>\n</html>\n\n\n");
out.flush();
}
private static final String[] __dependencies__ = {"dukebanner.html",
"response.jsp", ""};
public String[] __getDependencies()
{
return __dependencies__;
}
}
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
FAQs on JSP can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
