Hi again!
It seems like the problem is related to buffers since it resolved itself
when I added a out.flush() before calling the "sub-page".
I don't know if this qualify as a bug? It sure is annoying that data can
come out in a different order than the pagelayout would indicate.
Regards
Roland Carlsson
----- Original Message -----
From: "Roland Carlsson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, October 14, 2002 9:48 AM
Subject: RequestDispatcher
Hi!
I got a problem with the RequestDispatcher. I'm trying to make a simple
framwork to include jsp-pages as components into a template-jsp. But I
doesn't get the pages nested the way I'd like it. Could anyone please
explain why the RequestDispatcher puts page2 before page1 instead of inside
page1.
Thanks in advance
Roland Carlsson
Setup:
Apache 1.3.22
Tomcat 4
Windows Nt4 sp5
Example and source:
Imagine these two jsp-files.
-------------- page one---------------
test1
<%
Machine m = Machine.getInstance();
m.sub(request, response, 1);
%>
test1 end
------------- page two ------------
test2
test2 end
---------- resultpage -----------
test2
test2 end
test1
test1 end
-------- what I expeced --------
test1
test2
test2 end
test1 end
--------- Source of Machine.sub() -----------------
public void sub(HttpServletRequest request, HttpServletResponse response,
int i){
try{
// Get a database connection
// FixMe: get from a pool
Class.forName("oracle.jdbc.driver.OracleDriver");
StringBuffer sb = new StringBuffer();
sb.append("jdbc:oracle:thin:");
sb.append("xxxx");
sb.append("/");
sb.append("xxxx");
sb.append("@xxxx:xxxx:xxxx:");
sb.append("xxxx");
Connection conn = DriverManager.getConnection(sb.toString());
// Get a Component from the request
Component oldComp = (Component) request.getAttribute("_komponent");
// Get Children from the component
java.util.ArrayList al= oldComp.getChildren(conn);
// Get the Component we want for this request
Component newComp = (Component) oldComp.getChildren(conn).get(i);
// Populate the child
newComp.sql_select(conn);
// Set the child into the request so it will be parent for
sub-components
request.setAttribute("_komponent", newComp);
// Include a sub-component into the page
request.getRequestDispatcher(newComp.getUrl()).include(request,
response);
// Restore state
request.setAttribute("_komponent", oldComp);
// Release db
conn.close();
}catch(Exception e){
e.printStackTrace();
}finally{
}
}
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