Please, HELP me. Servlet/JSP

Hi,
I have a servlet that builds an URl to extract the .XLS file fromt he repository. Becoz MS EXCEL is unable to open if there are more than 65000 records, I split the files which are holding over 60,000 records in to two parts. naming them like filenamePart1.XLS and Filenamepart2.XLS.
Now my problem is. How can i check whether my file has more than 60,000 records is there any direct method. I wrote the following program, but is not working fine.
One more problem is ,How can i display these split files?.Again Remember, I used to build the URL and open it using Request dispatcher and forwarding the request. But now I have two files. How can I go about it. Any suggestion or code would be appriciated. Thank you.

Infact I have the same file in .TXT format in the same
folder, So I am checking this from txt file(
filename.txt). It still doesn't work.I belive the
following servlet code explains better.1��. Try to call the method countLines with the full path of your file.(e.g. "C:\\reports\\filename.txt"). Should work.
If you want to count the records of your xls file
take a look at http://jakarta.apache.org/poi/hssf/index.html. Can help you manipulate Excel files from java.
2��. To display the 2 files in your browser (if that's what you want...)
you can respond from your servlet with an html like the following:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<SCRIPT LANGUAGE="JavaScript">
     function openFiles() {
          window.open('url-of-filenamePart1.XLS ','file1','toolbar=yes,status=yes,scrollbars=yes,location=yes,menubar=yes,directories=yes,width=640,height=480');
          window.open('url-of-filenamePart2.XLS ','file2','toolbar=yes,status=yes,scrollbars=yes,location=yes,menubar=yes,directories=yes,width=640,height=480');
</SCRIPT>
<BODY onLoad="openFiles();">
</BODY>
</HTML>
2 windows for the 2 excel files will be popped up. url-of-filenamePart1.xls and url-of-filenamePart2.xls are the values of the String variables urlPdf1 and urlPdf2 in your code.
Regards
BG

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[email protected]
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I just realized that the file is given as just a filename. No path.
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If you're going to crosspost, at least have the courtesy to provide a link back to your original thread. It's easy. Just like this:
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hi frank,
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SRC folder in view controller
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thanks in advance man
regards
Halim

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thank you :)
here is the piece of code where the error occures
<%
Vector Items = new Vector();
Vector ItemsMatch = new Vector();
String SearchText = "What ever";
String ItemInfo = "";
DbConnect temp;
try{
SearchText = SearchText.toLowerCase();
creatConnection = godb.creatConn();
Items = godb.selectViewedItems("items",1);
creatConnection =creatConnection + godb.closeConn();
}catch(Exception e){ out.println(e.toString()); }
try{
               for(j=0;j< Items.size();j++)
               temp =(DbConnect)Items.elementAt(j);
               ItemInfo = temp.getName().toLowerCase() + " "+temp.getDesc().toLowerCase()+" "+temp.getDimensions().toLowerCase()+" "+temp.getReference().toLowerCase()+" "+temp.getFound().toLowerCase()+" "+temp.getCondition().toLowerCase();
if(ItemInfo.indexOf(SearchText)!=-1)
               ItemsMatch.add(temp);
}catch(Exception e){ out.println(e.toString()); }
%>

PLEASE HELP!!! using servlet to generate an image in jsp page

Hi,
I am so stuck on this... please help.
I have a servlet that generated a gif image dynamically. It uses a bean that stores the gif image in a byte array.
The servlet outputs the byte data to the output stream. The code is really simple and looks like this:
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //HttpSession session = request.getSession();
        try {
            ServletOutputStream stream = response.getOutputStream();
            ImageByteInformation imageByteInfo = (ImageByteInformation) request.getAttribute("imageByteInformation");
            response.setContentType("image/gif");
            response.setContentLength(imageByteInfo.getByteData().length);
            stream.write(imageByteInfo.getByteData(), 0, imageByteInfo.getByteData().length);
            stream.flush();
        }catch( Exception e){
            System.out.println("You are hooped!: " + e.getMessage() + " " + e.toString());
        }When I redirect from the dispatch servlet straight to this servlet an image shows up in the browser window.
However when I try to use this jsp page to display the image nothing happens...
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <h2>Hello World!</h2>
        <img src="servlets/Map24ImageDisplayServlet"/>
         //I also tried src/servlets/Map24..., /src/servlets/Map24..., /display, servlets/display
        <h2>Did you see the image?</h2>
    </body>
</html>My web.xml is here if it helps...
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>HelloProject</display-name>
<servlet>
    <display-name>ServletDispatcher</display-name>
    <servlet-name>ServletDispatcher</servlet-name>
    <servlet-class>servlets.ServletDispatcher</servlet-class>
</servlet>
<servlet>
    <display-name>Map24ImageDisplayServlet</display-name>
    <servlet-name>Map24ImageDisplayServlet</servlet-name>
    <servlet-class>servlets.Map24ImageDisplayServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>ServletDispatcher</servlet-name>
    <url-pattern>/hello</url-pattern>
</servlet-mapping>
<error-page>
    <error-code>404</error-code>
    <location>/404_error.html</location>
</error-page>
<servlet-mapping>
    <servlet-name>Map24ImageDisplayServlet</servlet-name>
    <url-pattern>/display</url-pattern>
</servlet-mapping>
</web-app>I can never get an image to come up. In fact I can never get the jsp page to run the servlet at all! HELP!!! What am I doing wrong?
Thanks
Edited by: Kind_of_Green on May 5, 2008 3:55 PM
Edited by: Kind_of_Green on May 5, 2008 4:00 PM

OK... so you WERE absolutely right about the src path for the image tag.
However I also had another problem that was quite a bit more insidious and mostly just a symptom
of how little I know about what goes on under the hood of a web app.
My bean storing the image info was stored as a request attribute. When the servlet was called from the
jsp page the request object was either reset or just never initialized. Anyway it is not the same request
object I assumed it was being passed in the doGet method. I added my bean as a session
attribute and everything is sparkly :)
I can only assume that when a request is neither forwarded nor included (as is the case with
calling the servlet from the img tag) it is disappeared.
Anyway, thanks a mint man. I so totally appreciate your time.
Ciao :)

JSP - Servlet - Please help

Hi:
Can any one suggest me the code for the following scenerio, Am new to jsp-Servlet....
I need to give an EMPNAME in a Textbox on clicking GO button from my JSP page, a servlet must process thei query and display the output of that employee details back to that JSP page..
Please help me out with some code snippets...
Regards,

The sun's site provides a detailed introduction to JDBC. or
have to google for JDBC and once you've understood the JDBC concept, then you could progress from there. There is no simple way of doing what you asked.
You will need a database, though you could use MS Access. But you still need the JDBC.

Please, HELP me. Servlet/JSP

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