httpurlconnection

问题 First, I open a connection and send some data to server. Next I get a response. HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection(); wr = new OutputStreamWriter(connection.getOutputStream()); wr.write("some text sent to server"); wr.flush(); //read the server answer rd = new BufferedReader(new InputStreamReader(connection.getInputStream())); ... What I need is to repeat the whole cycle again - send data and receive answer. The problem is that if I use the same wr

问题 I am experiencing this problem although not sure if exactly. I have discovered Cannot write output after reading input in logs and, per the above, I believe this is occurring because of a getResponseCode() followed by a getOutputStream() . Would this be the cause of the logged error I am seeing? HttpURLConnection conn = (HttpURLConnection) url.openConnection(); if(conn.getResponseCode() == 0){ logger.debug("Success"); } else { logger.debug("Time out set for 30 seconds"); } String input =

问题 public class GeoRegistration extends AsyncTask<Void, Void, AuthorizationResponseContainer> { private Activity activity; private static final String USERNAME = "username="; private static final String EMAIL = "&email="; private static final String PASSWORD = "&password="; private static final String PASSWORD_REPEAT = "&password_repeat="; private String route; private String paramsSequence; public GeoRegistration() { } public GeoRegistration(Activity activity, String username, String email,

问题 I have to parse this. I am storing the retreived url response in a buffer.But when I move the received buffer to a string I get a broken output and so I am unable to parse it. However when I print the variable line , I see the entire response is received. Is it some sort of buffer overflow for string? How can I parse the response, as it also contains a wrapper function and so I dont think I can even use the JSONReader! Here is the code- URL url = new URL("http://chartapi.finance.yahoo.com

问题 try{ String a="http://10.0.2.2/test2.php"; Log.d("URL",a); url = new URL(a); Log.d("URL23",a); HttpURLConnection urlConnection = (HttpURLConnection)url.openConnection(); Log.d("URL3",a); try { System.setProperty("http.keepAlive", "false"); // just want to do an HTTP GET here urlConnection.setRequestMethod("GET"); urlConnection.setRequestProperty("Content-length", "0"); urlConnection.setUseCaches(false); urlConnection.setAllowUserInteraction(false); // give it 15 seconds to respond

问题 After a complete and utter failure to implement code with Retrofit, I have used Android's HttpURLConnection class to try and send an email through MailGun. However whatever I seem to do I get error 400 bad request back. I do not know what I am doing wrong - similar code seems to be working perfectly within iOS. The 4 lines commented out make no difference. Hardcoding the values for from and to did not fix it either. I have tried using application/json for Content-Type as well. Any pointers in

问题 I have written a code which streams bytes from another server to my server and then I write those contents into my local file. It works fine when I use the read() method which doesn't buffer data. But when I use buffering (intention is that I believe streaming would be faster for big files) I use read(byte[]) method and it gets only partial data while streaming. I am posting the code. Can any one pls point out the mistake or concepts what I am missing. The following code works fine. (no

问题 I'm trying to upload a file to Rapidshare through their API with Java. But I'm stuck and I think my problem is that their API don't know the property name of my uploaded file, or something like that. It seems like it uploads and submits perfectly, but no files are in my account afterwards. I've based my code on what I found here: http://www.experts-exchange.com/Programming/Languages/Java/Q_20370019.html If any help, I succeeded to create a solution using PHP and cURL, but the final solution

问题 This question already has answers here : 403 Forbidden with Java but not web browser? (4 answers) Closed last year . I want to get the html source code of https://www2.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=872423 and for that I am using this method but I am not getting the html source code. public static String getHTML(URL url) { HttpURLConnection conn; // The actual connection to the web page BufferedReader rd; // Used to read results from the web page String

问题 I am using HttpURLConnection 's connect method but it returns null . no other message no printstack just null. URL url = new URL("http://whatever"); URLConnection urlConnection = url.openConnection(); InputStream in = new BufferedInputStream(urlConnection.getInputStream()); In above also it returns the null Don't know why this comes. But I cant connect to net. i also tried with HttpURLConnection and urlconnection both are different example. 回答1: Add below permissions in manifest file- <uses