Empty MESSAGE body using OutputStream.write
Hello
I have problems with the write method of OutputStream. Specifically, the MESSAGE body is empty, even if I specify data in the write() method. An HTTP request is made, I see it in the server logs and I get a return status of 200 OK, but data is sent just never. Any ideas?
Here is the code in question: (I'm overrideing the variable inputFromUser for testing purposes)
public boolean fetch(String inputFromUser) throws IOException {
System.out.println("Fetch called with input " + inputFromUser);
boolean contentAvailable = false;
HttpConnection httpConn = null;
inputFromUser = "name=javabb";
httpConn = (HttpConnection)Connector.open(TEST_URL+get_connection_directive(), Connector.READ_WRITE);
httpConn.setRequestMethod(HttpConnection.POST);
httpConn.setRequestProperty("Accept", "*/*");
httpConn.setRequestProperty("Accept-Encoding", "gzip, deflate, compress");
httpConn.setRequestProperty("Content-Length", Integer.toString(inputFromUser.length()));
httpConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
OutputStream output = null;
output = httpConn.openOutputStream();
output.write(inputFromUser.getBytes());
output.flush();
// Getting the response code will open the connection,
// send the request, and read the HTTP response headers.
// The headers are stored until requested.
int status = 0;
status = httpConn.getResponseCode();
if (status == HttpConnection.HTTP_OK)
{
InputStream input = null;
input = httpConn.openInputStream();
if(httpConn.getEncoding().toLowerCase().equals("gzip")) {
input = new GZIPInputStream(input);
}
// Check to see if there's content
int contentLength = (int) httpConn.getLength();
byte[] bytes = null;
bytes = IOUtilities.streamToBytes(input);
StringBuffer raw = new StringBuffer(new String(bytes, "UTF-8"));
if ( contentLength > 0 )
{
setContent(raw.toString());
contentAvailable = true;
System.out.println("Response: " + raw.toString());
}
else {
System.out.println("Content-length < 1");
}
input.close();
}
else
{
setStatus(status);
System.out.println("HTTP Status of: " + status);
contentAvailable = false;
}
httpConn.close();
return contentAvailable;
}
You do not close the output stream. I suspect that might have something to do with the problem.
Also there are a few changes that I would say that may contribute to your problem.
(1) you say:
httpConn.setRequestProperty ("Content-Length", Integer.toString (inputFromUser.length ()));
inputFromUser is now a string. Its length is not necessairly the same as the number of bytes that you get when you convert it to bytes. Then you really should convert it to bytes and then find the length.
(2) copy the following code:
inputFromUser.getBytes)
Converts the string using the default value of the ISO8859-1 BlackBerry (could remembered that bad). This will convert most of the Latin type characters, but does not work for special characters, and other languages. You must choose a code that matches what the server expects, which is usually UTF - 8.
With those two changes, your code might look like:
Byte [] postBytes = null;
try {}
postBytes = inputFromUser.getBytes("UTF-8");
} catch (Exception e) {}
cannot be done with UTF - 8
}
httpConn.setRequestProperty ("Content-Length", Integer.toString (postBytes.length));
and then, later
output. Write (postBytes);
Let us know if these three changes (close, UTF - 8 and setting the length correctly) solve your problem.
Tags: BlackBerry Developers
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