Need help with my HttpConnection From Midlet To Servlet...

Question

NEED HELP ASAP PLEASE....
This class is supposed to download a file from the servlet...
the filename is given by the midlet... and the servlet will return the file in bytes...
everything is ok in emulator...
but in nokia n70... error occurs...
Http Version Mismatch shows up... when the pout.flush(); is called.. but when removed... java.io.IOException: -36 occurs...
also i have posted the same problem in nokia forums..
please check also...
http://discussion.forum.nokia.com/forum/showthread.php?t=105567
now here are my codes...
midlet side... without pout.flush();
public class DownloadFile {
    private GmailMidlet midlet;
    private HttpConnection hc;
    private byte[] fileData;
    private boolean downloaded;
    private int lineNumber;
//    private String url = "http://121.97.220.162:8084/ProxyServer/DownloadFileServlet";
    private String url = "http://121.97.221.183:8084/ProxyServer/DownloadFileServlet";
//    private String url = "http://121.97.221.183:8084/ProxyServer/Attachments/mark.ramos222/GmailId111d822a8bd6f6bb/01032007066.jpg";
    /** Creates a new instance of DownloadFile */
    public DownloadFile(GmailMidlet midlet, String fileName) throws OutOfMemoryError, IOException {
        System.gc();
        setHc(null);
        OutputStream out = null;
        DataInputStream is= null;
        try{
            setHc((HttpConnection)Connector.open(getUrl(), Connector.READ_WRITE));
        } catch(ConnectionNotFoundException ex){
            setHc(null);
        } catch(IOException ioex){
            ioex.printStackTrace();
            midlet.alertScreen = new AlertScreen("Error C1", ioex.toString(),
                    null, AlertType.ERROR);
            midlet.alertScreen.setTimeout(Alert.FOREVER);
            midlet.display.setCurrent(midlet.alertScreen);
        try {
            if(getHc() != null){
                getHc().setRequestMethod(HttpConnection.POST);
                getHc().setRequestProperty("Accept","*/*");
                getHc().setRequestProperty("Http-version","HTTP/1.1");
                lineNumber = 1;
                getHc().setRequestProperty("CONTENT-TYPE",
                        "text/plain");
                lineNumber = 2;
                getHc().setRequestProperty("User-Agent",
                        "Profile/MIDP-2.0 Configuration/CLDC-1.1");
                lineNumber =3;
                out = getHc().openOutputStream();
                lineNumber = 4;
                PrintStream pout = new PrintStream(out);
                lineNumber = 5;
                pout.println(fileName);
                lineNumber = 6;
//                pout.flush();
                System.out.println("File Name: "+fileName);
                lineNumber = 7;
                is = getHc().openDataInputStream();
                long len = getHc().getLength();
                lineNumber = 8;
                byte temp[] = new byte[(int)len];
                lineNumber = 9;
                System.out.println("len "+len);
                is.readFully(temp,0,(int)len);
                lineNumber = 10;
                setFileData(temp);
                lineNumber = 11;
                is.close();
                lineNumber = 12;
                if(getFileData() != null)
                    setDownloaded(true);
                else
                    setDownloaded(false);
                System.out.println("Length : "+temp.length);
                midlet.setAttachFile(getFileData());
                lineNumber = 13;
                pout.close();
                lineNumber = 14;
                out.close();
                lineNumber = 15;
                getHc().close();
        } catch(Exception ex){
            setDownloaded(false);
            ex.printStackTrace();
            midlet.alertScreen = new AlertScreen("Error C2+ line"+lineNumber,
                    ex.toString()+
                    " | ",
                    null, AlertType.ERROR);
            midlet.alertScreen.setTimeout(Alert.FOREVER);
            midlet.display.setCurrent(midlet.alertScreen);
    public HttpConnection getHc() {
        return hc;
    public void setHc(HttpConnection hc) {
        this.hc = hc;
    public String getUrl() {
        return url;
    public void setUrl(String url) {
        this.url = url;
    public byte[] getFileData() {
        return fileData;
    public void setFileData(byte[] fileData) {
        this.fileData = fileData;
    public boolean isDownloaded() {
        return downloaded;
    public void setDownloaded(boolean downloaded) {
        this.downloaded = downloaded;
}this is the midlet side with pout.flush();
showing Http Version Mismatch
public class DownloadFile {
    private GmailMidlet midlet;
    private HttpConnection hc;
    private byte[] fileData;
    private boolean downloaded;
    private int lineNumber;
//    private String url = "http://121.97.220.162:8084/ProxyServer/DownloadFileServlet";
    private String url = "http://121.97.221.183:8084/ProxyServer/DownloadFileServlet";
//    private String url = "http://121.97.221.183:8084/ProxyServer/Attachments/mark.ramos222/GmailId111d822a8bd6f6bb/01032007066.jpg";
    /** Creates a new instance of DownloadFile */
    public DownloadFile(GmailMidlet midlet, String fileName) throws OutOfMemoryError, IOException {
        System.gc();
        setHc(null);
        OutputStream out = null;
        DataInputStream is= null;
        try{
            setHc((HttpConnection)Connector.open(getUrl(), Connector.READ_WRITE));
        } catch(ConnectionNotFoundException ex){
            setHc(null);
        } catch(IOException ioex){
            ioex.printStackTrace();
            midlet.alertScreen = new AlertScreen("Error C1", ioex.toString(),
                    null, AlertType.ERROR);
            midlet.alertScreen.setTimeout(Alert.FOREVER);
            midlet.display.setCurrent(midlet.alertScreen);
        try {
            if(getHc() != null){
                getHc().setRequestMethod(HttpConnection.POST);
                getHc().setRequestProperty("Accept","*/*");
                getHc().setRequestProperty("Http-version","HTTP/1.1");
                lineNumber = 1;
                getHc().setRequestProperty("CONTENT-TYPE",
                        "text/plain");
                lineNumber = 2;
                getHc().setRequestProperty("User-Agent",
                        "Profile/MIDP-2.0 Configuration/CLDC-1.1");
                lineNumber =3;
                out = getHc().openOutputStream();
                lineNumber = 4;
                PrintStream pout = new PrintStream(out);
                lineNumber = 5;
                pout.println(fileName);
                lineNumber = 6;
                pout.flush();
                System.out.println("File Name: "+fileName);
                lineNumber = 7;
                is = getHc().openDataInputStream();
                long len = getHc().getLength();
                lineNumber = 8;
                byte temp[] = new byte[(int)len];
                lineNumber = 9;
                System.out.println("len "+len);
                is.readFully(temp,0,(int)len);
                lineNumber = 10;
                setFileData(temp);
                lineNumber = 11;
                is.close();
                lineNumber = 12;
                if(getFileData() != null)
                    setDownloaded(true);
                else
                    setDownloaded(false);
                System.out.println("Length : "+temp.length);
                midlet.setAttachFile(getFileData());
                lineNumber = 13;
                pout.close();
                lineNumber = 14;
                out.close();
                lineNumber = 15;
                getHc().close();
        } catch(Exception ex){
            setDownloaded(false);
            ex.printStackTrace();
            midlet.alertScreen = new AlertScreen("Error C2+ line"+lineNumber,
                    ex.toString()+
                    " | ",
                    null, AlertType.ERROR);
            midlet.alertScreen.setTimeout(Alert.FOREVER);
            midlet.display.setCurrent(midlet.alertScreen);
    public HttpConnection getHc() {
        return hc;
    public void setHc(HttpConnection hc) {
        this.hc = hc;
    public String getUrl() {
        return url;
    public void setUrl(String url) {
        this.url = url;
    public byte[] getFileData() {
        return fileData;
    public void setFileData(byte[] fileData) {
        this.fileData = fileData;
    public boolean isDownloaded() {
        return downloaded;
    public void setDownloaded(boolean downloaded) {
        this.downloaded = downloaded;
}here is the servlet side...
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        if(request.getMethod().equals("POST")){
            BufferedReader dataIN = request.getReader();
            String fileName = dataIN.readLine();
            File file = new File(fileName);
            String contentType = getServletContext().getMimeType(fileName);
            response.setContentType(contentType);
            System.out.println("Content Type: "+contentType);
            System.out.println("File Name: "+fileName);
            int size = (int)file.length()/1024;
            if(file.length() > Integer.MAX_VALUE){
                System.out.println("Very Large File!!!");
            response.setContentLength(size*1024);
            FileInputStream fis = new FileInputStream(fileName);
            byte data[] = new byte[size*1024];
            fis.read(data);
            System.out.println("data lenght: "+data.length);
            ServletOutputStream sos = response.getOutputStream();
            sos.write(data);
//            out.flush();
        }else{
            response.setContentType("text/plain");
            PrintWriter out = response.getWriter();
            BufferedReader dataIN = request.getReader();
            String msg_uid = dataIN.readLine();
            System.out.println("Msg_uid"+msg_uid);
            JDBConnection dbconn = new JDBConnection();
            String fileName = dbconn.getAttachment(msg_uid);
            String[] fileNames = fileName.split(";");
            int numFiles = fileNames.length;
            out.println(numFiles);
            for(int i = 0; i<numFiles; i++){
                out.println(fileNames);
out.flush();
out.close();
Message was edited by:
Mark.Ramos222

Answer 1

1) Have you looked up the symbian error -36 on new-lc?
2) Have you tried the example in the response on forum nokia?
3) Is the address "121.97.220.162:8084" accessible from the internet, on the device, on the specified port?