problem about urlconnection-Collection of common programming errors
ArjunShankar
java file-download runtime-error urlconnection
I am trying to download a file using simple java class using the following code: public class Download { public static void main(String[] args) throws Exception { Download d = new Download(); d.URLSetUp(“http://www.sheldonbrown.com/web_sample1.html”); } public String URLSetUp(String urlProp) throws Exception { StringBuffer tempData = new StringBuffer(); String contentXML = “”; String line = “”; URL url1; try { url1 = new URL(urlProp); URLConnection conn = url1.openConnection(); con
CanSpice
java php urlconnection
I have a swing application that when the user clicks on a JButton in it, it connects to a php script in my website to send some data to it and retrieve the results from the PHP script. This worked fine for 100s of users who used this application, but today one of the users in a company reported that he cannot use this … When he clicks the button the application hangs and nothing happens. I even use UncaughtExceptionHandler to handle any unexpected exceptions in the application, but nothing is
user791996
javafx-2 javafx httpurlconnection urlconnection
I am struggling bad time trying to make an AngularJS application to run properly into an embedded JavaFX Webkit browser.During the initialization, this is pretty normal that the application server returns a HTTP 401 (unauthorized). The Ajax handler in the app will manage to redirect the the login page, and to reissue the failed request later. Although an IOException is thrown from default implementation of HttpUrlConnection from JVM when a > 400 error is thrown, and doesn’t return the response i
Ismail Marmoush
java redirect timeout urlconnection
From the output I understood that the website homepage does refresh and redirects the request to other page that happens ok on a browser but it doesn’t on code. so how do I move forward along with that redirection ? try {URL url = StringUtils.stringToURL(link);URLConnection dbGatewayURL = url.openConnection();dbGatewayURL.setConnectTimeout(timeout);BufferedReader in = new BufferedReader(new InputStreamReader(dbGatewayURL.getInputStream()));StringBuffer responseData = new StringBuffer();String li
Jad
android urlconnection
I’ve been trying to set up a client/server communication. My servlet works fine in the browser and when called from a simple java project. However, when I use the same code in an Android project it doesn’t return anything.Here is my code: package com.jad.carpooling;import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.MalformedURLException; import java.net.URI; import java.net.URL; import java.net.URLConnection;im
wdyz
java android connect android-4.4-kitkat urlconnection
I have implement AudioStreaming to my application. All code is running well, except on Android 4.4.2, it doesn’t work, i got an error message from DDMS on my application : Unable to initialize the MediaPlayer for fileUrl=http://live.radiorodja.com:80 java.net.ProtocolException: Unexpected status line: ICY 200 OK E/info.wd.controller.StreamingMediaPlayer$1(28900): Unable to initialize the MediaPlayer for fileUrl=http://live.radiorodja.com:80 E/info.wd.controller.StreamingMediaPlayer$1(28900): jav
BalusC
java http urlconnection
I’m facing this problem with Java. I want to get some HTML informations from a URL. This code was working for so long, but suddenly, it stopped working.When I access this URL using the browser, it opens with no problem.The code:URL site = new URL(this.url); java.net.URLConnection yc = site.openConnection(); BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream())); String inputLine; String objetivo = “<td height=\”28\” colspan=\”2\””; while ((inputLine = in.readLine()
Justin ZHANG
android urlconnection out-of-memory
hi,I just load about 8 pictures then crashed because out of memory exception ,it’s strange that the reason of exception is urlconnction instance cotains a large hashmap. The picture show the heap occupied by hashmap of httpurlconnection.So my question is how to reduce the hashmap size in the urlconnection?Sorry for my poor English.
gojomo
java applet crash freeze urlconnection
I am writing a Java applet that downloads images from a web server and displays them to the user. It works fine in Java 1.6.0_3 and later, but on older versions it will completely crash the process about once every 20 page views. There are no error messages in the Java console, because the process is completely frozen. I’ve waited for almost 15 minutes sometimes, but it never un-freezes.I added a debug message after every line of code, and determined that the line that is causing the crash is th
android_newbie
android urlconnection
I am trying to connection to my website from my application, for which I am using URLConnection. I have caught UnknownHostException, but even then the application is crashing and log cat show the following error.12-22 17:17:21.992: W/System.err(2222): java.net.UnknownHostException: Unable to resolve host “mywebsite.com”: No address associated with hostname 12-22 17:17:22.012: W/System.err(2222): at java.net.InetAddress.lookupHostByName(InetAddress.java:424) 12-22 17:17:22.012: W/System.err(2
tarek fellah
java android urlconnection
I tired the example of oracle to read from an URLConnection with android this is the code“try{URL oracle = new URL(“http://www.oracle.com/”);Proxy proxy = new Proxy(Proxy.Type.HTTP,newInetSocketAddress(“192.168.3.254”,3128)); // or whatever your proxy isURLConnection yc = oracle.openConnection(proxy);BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream()));String inputLine;while ((inputLine = in.readLine()) != null) Toast.makeText(this, inputLine, Toast.LENGTH_SHORT);i
NS114
java android bufferedreader urlconnection
I am trying to read the content of a URL. The initialization of the BufferedReader keeps causing the crash.I’ve tried looking up peoples’ solutions, but no matter what I do, I get this error.Here is my code:try {String sUrl = “http://www.google.com”;System.out.println(“About to create URL.”);URL url = new URL(sUrl);System.out.println(“Created URL”);System.out.println(“About to create URLConnection”);URLConnection urlc = url.openConnection();System.out.println(“Created URLConnection”);System.out.
hetaoblog
java http urlconnection
i use URLConnection to read a weburl, however sometimes it can not read full response (and sometimes it worked fine for the same url), one url is:http://messages.yahoo.com/yahoo/Business_%26_Finance/Investments/Stocks_%28A_to_Z%29/Stocks_Y/index.htmlbelow is one sample cut-off response<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01//EN” “http://www.w3.org/TR/html4/strict.dtd”> <html><head><title>Yahoo! Message Boards – Stocks Y</title><meta http-equiv=”Content-Type”
zarty
java web-applications servlets httpurlconnection urlconnection
I have a scheduled job class, implements the quartz Job class, from which I want to invoke a Servlet class that updates a flag in a DB table and then it sends emails to an appropriate emailing list.I get a java.net.ConnectException. Though the servlet is properly invoked by either entering its url in the browser or by javascript in a jsp page.My java class is the following:public class ExpirationJob implements Job {org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(“ExpirationJob.cl
Zarkonnen
java url proxy download urlconnection
I am trying to download a zip file from a URL and store it in the local system using java code. I am also using system proxy for the same. Its unable to connect to the url. Any idea?public static void main() {try{long startTime = System.currentTimeMillis();System.out.println(“Connecting to the url…\n”);System.setProperty(“http.proxyHost”, ” http://abc.com”);System.setProperty(“http.proxyPort”,”1111″);URL url = new URL(“http://sourceforge.net/projects/sevenzip/files/7-Zip/9.20/7z920.exe/downloa
Santiago Miguel Díaz
authentication urlconnection
I have programed an applet to test access to Internet. One of this checks is download a file from de Internet. I have programmed the applet in JDK 1.6. The applet is signed.This is part of the code:URL url = new URL(‘http://www.amazon.com/index.html’); URLConnection con = url.openConnection(); BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream())); while((data = in.readLine()) != null){… }The applet was compiling in JDK 1.6I tested this applet in a netbook with Mic
Tobias Schulte
java caching httpurlconnection java-web-start urlconnection
The description of the URLConnection caching API states as the last sentence:There is no default implementation of URLConnection caching in the Java 2 Standard Edition. However, Java Plugin and Java WebStart do provide one out of the box.Where can I find more information about the Webstart ResponseCache? Which Versions of Webstart on which platforms activate Caching? In which cases is it active? Only HTTP Get? Can it be configured? Is the sourcecode available?Background:Case 1With following (gr
Arthur Shniv
java url image bytearray urlconnection
I have a URLConnection, that access a web page.URL url = new URL(“https://domain”);con = url.openConnection();con.setDoOutput(true);Then i sent some data to the server using con.setRequestProperty()I get the response cookies fro ma specified field using String headerValue = con.getHeaderField(6);I also get the html and parse an image url from there. But here is a problem. I can get this image only by sending cache data back to the server ,when i acces my image.So i open a new connectionURL url1
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