httpurlconnection

httpurlconnection thread safety

由 Deadly 提交于 2019-12-30 07:01:14
问题 Is HttpUrlConnection thread safe? I.e. if I have an HttpConnection instance connected to a server and this instance is used by different threads (e.g.try to send a POST concurrently) how will this situation be handled by HttpUrlConnection? a) Will they send the POSTs serially, or b) the first thread sends the POST, gets the response and then the second thread will send the POST? If they send the POSTs serially, this means multiple active POSTs to the same tcp connection. Is this allowed? Can

HttpUrlConnection multipart file upload with progressBar

由 爱⌒轻易说出口 提交于 2019-12-30 04:40:34
问题 I want to check progress of uploading file by HttpUrlConnection . How I can do this? I've tried to calculate bytes when writing data in OutputStream but it's wrong, cause real uploading happens only when I call conn.getInputStream() , so I need somehow to check inputStream. Here is my code: public static void uploadMovie(final HashMap<String, String> dataSource, final OnLoadFinishedListener finishedListener, final ProgressListener progressListener) { if (finishedListener != null) { new Thread

HttpURLConnection c = URL.openConnection(); c.setRequestProperty() Doesn't work

由 ∥☆過路亽．° 提交于 2019-12-30 03:35:06
问题 This Code here is a normal Java application not an android application, this is designed to send C2DM messages to a device with YOUR_REGISTRATION_STRING as the developer with auth_key, the problem is described below import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; import javax.net.ssl.HostnameVerifier; import javax.net.ssl

How to send PUT, DELETE HTTP request in HttpURLConnection in JAVA

由 笑着哭i 提交于 2019-12-30 02:11:09
问题 I have Restful WebServices, and i send POST and GET HTTP request, how to send PUT and DELTE request HTTP in httpURLConection with JAVA. 回答1: PUT URL url = null; try { url = new URL("http://localhost:8080/putservice"); } catch (MalformedURLException exception) { exception.printStackTrace(); } HttpURLConnection httpURLConnection = null; DataOutputStream dataOutputStream = null; try { httpURLConnection = (HttpURLConnection) url.openConnection(); httpURLConnection.setRequestProperty("Content-Type

Java multiple connection downloading

由 99封情书 提交于 2019-12-30 01:07:25
问题 I wanted to get some advice, I have started on a new project to create a java download accelerator that will use multiple connections. I wanted to know how best to go about this. So far I have figured out that i can use HttpUrlConnection and use the range property, but wanted to know an efficient way of doing this. Once i have download the parts from the multiple connections i will then have to join the parts so that we end up with a fully downloaded file. Thanks in advance :) 回答1: Get the

Android HttpUrlConnection EOFException

由 与世无争的帅哥 提交于 2019-12-28 04:02:05
问题 I would like to know if there are known issues on Android with HttpUrlConnection and POST requests. We are experiencing intermittent EOFExceptions when making POST requests from an Android client. Retrying the same request will eventually work. Here is a sample stack trace: java.io.EOFException at libcore.io.Streams.readAsciiLine(Streams.java:203) at libcore.net.http.HttpEngine.readResponseHeaders(HttpEngine.java:579) at libcore.net.http.HttpEngine.readResponse(HttpEngine.java:827) at libcore

simple HttpURLConnection POST file multipart/form-data from android to google blobstore

由 若如初见. 提交于 2019-12-27 17:00:02
问题 I have very little idea how html works.What i want to do is exactly similar to the following but on android <body> <form action="<%= some_url %>" method="post" enctype="multipart/form-data"> <input type="file" name="myFile"> <input type="submit" value="Submit"> </form> </body> I tried the following code - private static void postToUrl(String url_to_upload_on, String file_name_with_ext, byte[] byteArray) { String attachmentName = "file"; String attachmentFileName = file_name_with_ext; String

httpurlconnection unable to connect to url in android

由 筅森魡賤 提交于 2019-12-25 16:38:00
问题 I got the exception at httpConn.connect(); but exception show nullmsg at android. Any Help is appreciated.I run the code at Net Beans it runs perfectly I already wrote <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> in menifest file Any way to parse the rss feed.I have the method but since code through the exception. MainActivity protected void onCreate(Bundle savedInstanceState) { super.onCreate

Android HttpUrlconnection not posting to URL

由 南楼画角 提交于 2019-12-25 16:37:51
问题 I am trying to submit a form from android emulator and it is not posting. I checked the URL in the browser and completed the form and it posts a new record into MySQL but from android it doesn't. I have been searching here for related threads but can't find the issue with my code this is what I have (I have internet and network access uses permission) protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.registration); Submit= (Button

Android HttpUrlconnection not posting to URL

由 ╄→гoц情女王★ 提交于 2019-12-25 16:37:44
问题 I am trying to submit a form from android emulator and it is not posting. I checked the URL in the browser and completed the form and it posts a new record into MySQL but from android it doesn't. I have been searching here for related threads but can't find the issue with my code this is what I have (I have internet and network access uses permission) protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.registration); Submit= (Button
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