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Java.net.protocolexception: Cannot Write Output After Reading Input.

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But, after I changed my proxy settings to correct ones, the error dissapeared and now I am able to upload my files through ftp using urlConnection in java. Just have a look at your advanced proxy settings in your web browser. Join Now I want to fix my crash I want to help others java.net.ProtocolException: cannot write to a URLConnection if doOutput=false - call setDoOutput(true) Stack Overflow | Tony | 3 years Here are the lines I added / modified: HUC.setRequestMethod("GET"); // HUC.setDoOutput(true); // Does POST ??? // OutputStream os = HUC.getOutputStream(); // Only with POST! // Get following error if getOutputStream and this contact form

The usage of "le pays de..." If I receive written permission to use content from a paper without citing, is it plagiarism? Post navigation ← How to get the New Facebook Timeline ProfilePage Creating a PDF file inJava → Follow Blog via Email Enter your email address to follow this blog and receive I've always used the URLConnection class which requires you to open to get an inputstream before it really connects??? If i knew how to write an http request I could try to make this thing work properly, rather than just approximately, which is what it does atm. http://stackoverflow.com/questions/17932694/cannot-write-urlconnection-because-of-dooutput

Java.net.protocolexception: Cannot Write Output After Reading Input.

Problem in solving this book and pages question If I receive written permission to use content from a paper without citing, is it plagiarism? The data is not written.Suppose i have a link, likehttp://website.com/index.php?action=submit&admin_user=hsadd&admin_pass=12345&name=aklenfer&score=1000000&access_code=34567890So when i click it, it writes aklenfer 1000000 to the database. If you agree to our use of cookies, please close this message and continue to use this site. here is the full exception:"); System.out.println(ioe); } try{ if(HUC!=null) { HUC.setRequestMethod("GET"); HUC.setDoOutput(true); OutputStream os = HUC.getOutputStream(); code = HUC.getResponseCode(); os.close(); HUC.disconnect(); } } catch(ProtocolException pe) { System.out.println("Protocol Exception"); System.out.println(pe); } catch(IOException

Username or email: Forum Password I've forgotten my password Remember me This is not recommended for shared computers Sign in anonymously Don't add me to the active users list Privacy Policy Why there are no approximation algorithms for SAT and other decision problems? Looking at your code you want to check whether the connection itself was successful, but there's no need for that: if the connection isn't successful, an Exception is thrown by server.connect(). Httpurlconnection Java Example Indeed , my exception was thrown for :BufferedWriter wr = new BufferedWriter(new OutputStreamWriter( server.getOutputStream(), "UTF-8")); but my class is very long, so I decided to put only the main problem with

Maybe this will be useful for someone. Server Returned Http Response Code: 400 For Url I believe the question you meant to ask was: How do I send an HTTP GET request from within Java?Since im completely clueless about DBs, a person who is not, made Blender add rough/random surface Compare elements iteratively Did a thief think he could conceal his identity from security cameras by putting lemon juice on his face? If thats the right question to ask then consider me asking you that question...

Forum New Posts FAQ Calendar Forum Actions Mark Forums Read Quick Links Today's Posts View Site Leaders What's New? http://www.ajaxapp.com/2009/02/21/a-simple-java-ftp-connection-file-download-and-upload/ share|improve this answer edited May 21 '15 at 7:45 answered May 21 '15 at 7:26 StarCrafter 189110 add a comment| Your Answer draft saved draft discarded Sign up or Why is Professor Lewin correct regarding dimensional analysis, and I'm not? void UploadToDatabase() throws MalformedURLException, IOException { URL website = new URL("http://mk7vrlist.altervista.org/databases/record_file.txt"); WritableByteChannel rbc = Channels.newChannel(website.openConnection().getOutputStream()); FileOutputStream fos; fos = new FileOutputStream("record_file.txt"); fos.getChannel().transferTo(0, Long.MAX_VALUE, rbc); fos.close(); } My goal is upload the

Server Returned Http Response Code: 400 For Url

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed https://theinsanetechie.wordpress.com/2011/10/04/http-post-in-java-using-urlconnection/ This error cost me 3 work-days. Java.net.protocolexception: Cannot Write Output After Reading Input. My solution was to add code to the servlet to respond and to the client to read that response. Java.lang.illegalstateexception: Already Connected Leave a Reply Cancel reply Enter your comment here...

Please try again and enter one."); else { String url = args[0]; if (CompleteURL(url)) { System.out.println( URLServerExistCheck(url)); } else{ System.out.println("no, screwed"); } } } } Reply With Quote November 28th, 2001,06:38 weblink Norm Norm Reply With Quote November 29th, 2001,10:05 AM #6 Norm View Profile View Forum Posts Elite Member Join Date Jun 1999 Location Eastern Florida Posts 3,622 Re: Random Results with I modified your code (which was sending an HTTP POST request) so that it works. Accept & Close Skip to content Ignore Learn more Please note that GitHub no longer supports old versions of Firefox. Httpurlconnection Post

Here's how: URLConnection urlc = website.openConnection(); urlc.setDoOutput(true); WritableByteChannel rbc = Channels.newChannel(urlc.getOutputStream()); share|improve this answer answered Jul 29 '13 at 19:43 tbodt 8,94113162 1 +1 :) now I'm having another error asked 3 years ago viewed 3772 times active 3 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Linked 3 HttpURLConnection GET request getting 400 Bad Request Related 1Reasonable Converting the weight of a potato into a letter grade Web Sites: Disneyland vs Disney World in the United States Reverse a hexadecimal number in bash Is it safe replace 225/65R17 navigate here Why does the size of this std::string change, when characters are changed?

How to interpret torque spec ranges? Join us to help others who have the same bug. How to decline a postdoc interview if there is some possible future collaboration?

This is the code I am using at the moment.

Why does low frequency RFID have a short read range? java.net.ProtocolException: cannot write to a URLConnection if doOutput=false - call setDoOutput(true) at com.facebook.GraphResponse.fromHttpConnection(GraphResponse.java:280) at com.facebook.GraphRequest.executeConnectionAndWait(GraphRequest.java:1130) at com.facebook.GraphRequest.executeBatchAndWait(GraphRequest.java:1032) at com.facebook.GraphRequest.executeBatchAndWait(GraphRequest.java:999) at com.facebook.GraphRequest.executeBatchAndWait(GraphRequest.java:983) at com.facebook.GraphRequest.executeAndWait(GraphRequest.java:958) at com.facebook.GraphRequest.executeAndWait(GraphRequest.java:854) ... I am trying to send over a 'GET - CONNECT'. What do you do with the OutputStream?

Back to top #9 aklenfer Banned -Reputation: 100 Like 0Likes Like Posted 23 October 2007 - 08:51 AM hmmm... Is it ethical for a journal to cancel an accepted review request when they have obtained sufficient number of reviews to make a decision? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed his comment is here How to interpret torque spec ranges?

Why did Michael Corleone not forgive his brother Fredo? Bookmark the permalink. When you request a web page, and it is then downloaded, this is known as an http session, request and response. Underbrace under nested square roots Mimsy were the Borogoves - why is "mimsy" an adjective?

Browse other questions tagged java or ask your own question. That would be for a POST? If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Join them; it only takes a minute: Sign up Cannot write output after reading input up vote 6 down vote favorite 1 I'm writing a program that connects to a servlet

Any hints? What can I do to prevent this in the future? http://www.google.com returns an http -1 code (so not an http code then!). You may have to register or Login before you can post: click the register link above to proceed.

If an image is rotated losslessly, why does the file size change? Nick Reply With Quote November 28th, 2001,07:00 PM #4 aceduk View Profile View Forum Posts Junior Member Join Date Aug 2001 Location Uk Posts 13 Re: Random Results with HttpURLConnection Thinking Back to top #11 aklenfer Banned -Reputation: 100 Like 0Likes Like Posted 25 October 2007 - 08:21 AM Anyways, the correct answer is:If i read something from the writeURLhttp://website.com/index.php?action=submit?score=123000?name=aklenfer?accesscode=12434253235it will I've never tried using the HttpURLConnection class.

Back to top #5 aklenfer Banned -Reputation: 100 Like 0Likes Like Posted 23 October 2007 - 07:43 AM ;-(--------------------Configuration: --------------------Exception in thread "main" java.lang.RuntimeException: java.lang.NullPointerException at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:946) at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2063) at Would we find alien music meaningful? how to read the early response with HttpURLConnection? –Jiang YD Dec 3 '15 at 2:44 add a comment| up vote 5 down vote I think the exception is not due toprinting Related This entry was posted in java, php, post, url.

Do you know how could I fix it? –Alberto Miola Jul 29 '13 at 19:46 @tbodt you're missing something :/ –Alberto Rossi Jul 29 '13 at 19:49 OutputStreamWriter out = new OutputStreamWriter(conn.getOutputStream()); out.write(toSend); out.close(); BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream())); String receive = ""; do { String line = in.readLine(); if (line == null) break; receive += line; Any more comments / suggestions greatfully received!

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