hi i new to mobile development i like to upload the file from blackberry and android 
how to develop the mobile side to this jsp page.
please do reply me
thanks
here i mention the jsp file from roseindia.net.
<%@ page import="java.io.*" %
<%
    //to get the content type information from JSP Request Header
    String contentType = request.getContentType();
    //here we are checking the content type is not equal to Null and as well as the passed data from mulitpart/form-data is greater than or equal to 0
    if ((contentType != null) && (contentType.indexOf("multipart/form-data") = 0)) {
        DataInputStream in = new DataInputStream(request.
getInputStream());
        //we are taking the length of Content type data
        int formDataLength = request.getContentLength();
        byte dataBytes[] = new byte[formDataLength];
        int byteRead = 0;
        int totalBytesRead = 0;
        //this loop converting the uploaded file into byte code
        while (totalBytesRead < formDataLength) {
            byteRead = in.read(dataBytes, totalBytesRead, 
formDataLength);
            totalBytesRead += byteRead;
            }
    String file = new String(dataBytes);
    //for saving the file name
    String saveFile = file.substring(file.indexOf("filename=\"") + 10);
    saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
    saveFile = saveFile.substring(saveFile.lastIndexOf("\\")
+ 1,saveFile.indexOf("\""));
        int lastIndex = contentType.lastIndexOf("=");
        String boundary = contentType.substring(lastIndex + 1,
contentType.length());
        int pos;
        //extracting the index of file 
        pos = file.indexOf("filename=\"");
        pos = file.indexOf("\n", pos) + 1;
        pos = file.indexOf("\n", pos) + 1;
        pos = file.indexOf("\n", pos) + 1;
        int boundaryLocation = file.indexOf(boundary, pos) - 4;
        int startPos = ((file.substring(0, pos)).getBytes()).length;
        int endPos = ((file.substring(0, boundaryLocation))
.getBytes()).length;
    // creating a new file with the same name and writing the content in new file
    FileOutputStream fileOut = new FileOutputStream(saveFile);
    fileOut.write(dataBytes, startPos, (endPos - startPos));
    fileOut.flush();
    fileOut.close();
    %><Br><table border="2"><tr><td><b>You have successfully
upload the file by the name of:
        <% out.println(saveFile); % <%
        }
%