Error: response does not start with HTTP

Question

hi,
i am using a MIDP class to send a string to a java servlet which then returns a .gif image. the string is being successfully to the servlet, but an exception is being thrown when the image is being sent back.
java.io.IOException: response does not start with HTTP it starts with: GIF89aï4
at com.sun.midp.io.j2me.http.Protocol.readResponseMessage(Protocol.java:2166)
at com.sun.midp.io.j2me.http.Protocol.finishRequestGetResponseHeader(Protocol.java:1934)
at com.sun.midp.io.j2me.http.Protocol.sendRequest(Protocol.java:1598)
at com.sun.midp.io.j2me.http.Protocol.sendRequest(Protocol.java:1517)
at com.sun.midp.io.j2me.http.Protocol.openInputStream(Protocol.java:484)
my code is as follows in the midp class :
HttpConnection c = null;
InputStream is = null;
StringBuffer sb = new StringBuffer();
String url="http://localhost:8090/ProjectServer/createMap";
url=url+"?Source="+src+"&Destination="+dest;
try {
c = (HttpConnection)Connector.open(url,Connector.READ_WRITE, true);
c.setRequestMethod(HttpConnection.GET); //default
//is = c.openDataInputStream();
is = new DataInputStream(c.openInputStream()); //openInputStream(); // transition to connected!
Image im=null;
try
ByteArrayOutputStream bStrm = new ByteArrayOutputStream();
int ch;
while ((ch = is.read()) != -1)
bStrm.write(ch);
// Place into image array
byte imageData[] = bStrm.toByteArray();
// Create the image from the byte array
im = Image.createImage(imageData, 0, imageData.length);
finally
// Clean up
if (is != null)
is.close();
the code in the servlet is as follows :_
ServletContext sc = getServletContext();
// Get the MIME type of the image
String mimeType = sc.getMimeType("route.gif");
if (mimeType == null) {
sc.log("Could not get MIME type ");
response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
// Set content type
response.setContentType(mimeType);
// Set content size
response.setContentLength((int)file.length());
// Open the file and output streams
FileInputStream in = new FileInputStream(file);
OutputStream outstream = response.getOutputStream();
// Copy the contents of the file to the output stream
byte[] buf = new byte[1024];
int count = 0;
while ((count = in.read(buf)) >= 0) {
outstream.write(buf, 0, count);
in.close();
outstream.close();
il be immensely grateful if some1 cud tell me whre i am gng wrong.
thnx,
nev

Answer 1

Hi, I�m trying to do the same as above, get MP3 from a Shoutcast server.
I got the same fault ("response does not start with HTTP it starts with: ICY") when I tried to open an HttpConnection as bellow:
============================================
HttpConnection conn = (HttpConnection) Connector.open("http://64.236.34.196/stream/1074");
Then I tried to open a socket connection as bellow:
======================================
SocketConnection conn = (SocketConnection) Connector.open("socket://64.236.34.196:80");
String get = "GET /stream/1074 HTTP/1.1";
DataOutputStream os = conn.openDataOutputStream();
os.writeUTF(get);
InputStream is = conn.openInputStream();
But then I got the following error:
=========================
java.lang.SecurityException: Target port denied to untrusted applications
Could someone help me to find out what is going on?
Thanks a lot!