httpurlconnection

I'm setting the length of the content in my HttpURLConnection, for a PUT. urlConnection.setRequestProperty("Content-Length", "" + responseJSONArray.toString(2).getBytes("UTF8").length); The actual number of bytes is 74. However, when I query the content length of urlConnection I'm returned -1 . Why is that? And why are lengths not equal (given that I set this)? I must set the content-length because I'm receiving a 411 response from the server. (Also, in the Sun examples I've seen the second argument of setRequestProperty is of type int and not String , which seems odd.) You shouldn't set this

I'm trying to gather statistical data from Roblox's currency exchange for analysis. Therefore, I need up-to-date data instead of a cached result. However, it seems that no matter what I do, the result is still cached. It seems that the most intuitive option, setUseCaches() , had no effect, and setting the header manually as Cache-Control: no-cache does not seem to work either. I inspected the Cache header using Fiddler2 and saw that its value was Cache-Control: max-age=0 , but it didn't seem to change the program's behavior either. Here are the relevant pieces of code: URL: private final

Let me start with what I desire : I want to make an app which is part native and part webviews . Problem - Maintain a session between native and webview parts. My Approach to handle this: I intend to implement a native login, in which I present the user with two EditTextboxes and a button, the user enters credentials and I post them as JSON to the server. The Server responds with success or false. Based on Success flag I read the header values for this connection and extract the SessionCookie: switch (responseCode) { case 200: BufferedReader in = new BufferedReader(new InputStreamReader(conn

I am developing small android application in which I wanted to upload image from my android device to my server. I am using HttpURLConnection for that. I am doing this in following way: Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.arrow_down_float); ByteArrayOutputStream bos = new ByteArrayOutputStream(); bitmap.compress(CompressFormat.JPEG, 100, bos); byte[] data = bos.toByteArray(); connection = (HttpURLConnection) url.openConnection(); connection.setDoOutput(true); connection.setRequestProperty("Content-Type", "image/jpeg"); connection.setRequestMethod

In the code: HttpURLConnection connection = (HttpURLConnection)createMerchURL.openConnection(); connection.setRequestMethod("PUT"); connection.addRequestProperty("Name", "Value1"); connection.connect(); .. connection.disconnect(); When is the connection getting opened actually? At ..createMerchURL.openConnection(); ? or at connection.connect(); ? How can I set URL in the connection Object and use it with connection.connect() ?(as I am less comfortable with .openConnection() ) Finally, is there any difference between the two? Thanks.. When is the connection getting opened actually? At .

I make a GET request to a server using HttpUrlConnection. After connecting: I get response code: 200 I get response message: OK I get input stream, no exception thrown but: in a standalone program I get the body of the response, as expected: {"name":"my name","birthday":"01/01/1970","id":"100002215110084"} in a android activity, the stream is empty (available() == 0), and thus I can't get any text out. Any hint or trail to follow? Thanks. EDIT: here it is the code Please note: I use import java.net.HttpURLConnection; This is the standard http Java library. I don't want to use any other