httpurlconnection

问题 I am attempting to connect to my server using basic authentication, but when I set the Authorization header, it causes getInputStream to throw a fileNotFound exception. Here is the relevant code: URL url = new URL(myurl); //set up the connection HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setReadTimeout(10000);//this is in milliseconds conn.setConnectTimeout(15000);//this is in milliseconds String authHeader = getAuthHeader(userID,pass); conn.setRequestMethod("GET"

问题 I'm running the following test Java script from the Android HttpURLConnection docs: URL url = new URL("http://www.android.com/"); HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.connect(); Eclipse (on my Mac) is telling me there's a system error when I run this in the Android Emulator: 01-13 13:44:32.767: WARN/System.err(1382): java.net.SocketException: Permission denied (Incidentally when I do the equivalent in Objective-C/Cocoa there's no problem at

问题 First, some background. There is a worker which expands/resolves bunch of short URLS: http://t.co/example -> http://example.com So, we just follow redirects. That's it. We don't read any data from the connection. Right after we got 200 we return the final URL and close InputStream. Now, the problem itself. On a production server one of the resolver threads hangs inside the InputStream.close() call: "ProcessShortUrlTask" prio=10 tid=0x00007f8810119000 nid=0x402b runnable [0x00007f882b044000]

问题 Below code send the images to server successfully. But what I need is have to add an parameter like image description and image date to database. I dont know how to add parameter in HttURLconnection. String fileName = sourceFileUri; HttpURLConnection conn = null; DataOutputStream dos = null; String lineEnd = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; int bytesRead, bytesAvailable, bufferSize; byte[] buffer; int maxBufferSize = 1 * 1024 * 1024; File sourceFile = new File

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . java.io.IOException: Server returned HTTP response code: 500 for URL: http://ww .huadt.com.cn/zh-cn/i/l/@357671030745308@V500@0000@AUTOLOW@1@11d590f7$GPRMC,065 48.000,A,3959.8587,N,11617.2447,E,0.00,55.32,210311,,,A*56@@ at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown S urce) at hdt

问题 I'm using HttpURLConnection on Android KitKat to POST some data to a server. The server takes a long time to respond, and the connection is silently retrying 1 to 3 times before timing out. I don't want it to retry, since the server acts on all of the requests, resulting in Bad Things(TM). I've tried System.setProperty("http.keepAlive", "false") before opening the connection, but that doesn't help. 回答1: For POST calls set httpURLConnection.setChunkedStreamingMode(0); and this should fix the

问题 I want to do a POST request to an HTTP Servlet I wrote myself. Good case (HTTP response Code 200) always works fine by using URL.openConnection() method. But when I receive a desired error response code (e.g. 400) then I thought I have to use HttpUrlConnection.getErrorStream(). But the ErrorStream object is null though I am sending data back from the servlet in error case (I want to evaluate this data to generate error messages). This is what my code looks like: HttpURLConnection con = null;

问题 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

问题 I use HttpURLConnection to do HTTP POST but I dont always get back the full response. I wanted to debug the problem, but when I step through each line it worked. I thought it must be a timing issue so I added Thread.sleep and it really made my code work, but this is only a temporary workaround. I wonder why is this happening and how to solve. Here is my code: public static InputStream doPOST(String input, String inputMimeType, String url, Map<String, String> httpHeaders, String

问题 I´m trying to send a post request with cookies. This is the code: try { String query = URLEncoder.encode("key", "UTF-8") + "=" + URLEncoder.encode("value", "UTF-8"); String cookies = "session_cookie=value"; URL url = new URL("https://myweb"); HttpsURLConnection conn = (HttpsURLConnection) url.openConnection(); conn.setRequestProperty("Cookie", cookies); conn.setRequestMethod("POST"); conn.setDoInput(true); conn.setDoOutput(true); DataOutputStream out = new DataOutputStream(conn