Error During Ftp Transfer Java.net.connectexception
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refused: connect in Java java.net.ConnectException: Connection refused: connect is one of the most common networking exceptions in Java. This error comes when you are working with client-server architecture and trying to make TCP connection from the client to the server. Though this is not as cryptic as java.lang.OutOfMemoryError: Java heap Space or java.lang.UnsupportedClassVersionError, it's still a frequent problem in distributed Java applications. java.net.ConnectException: Connection refused: connect also comes in the case of RMI (Remote Method Invocation) because RMI also uses TCP-IP protocol underneath. While writing client socket code in Java, You should always provide proper handling of this exception. In this Java http://stackoverflow.com/questions/4509414/ant-ftp-task-unable-to-send-file-to-remote-machine tutorial, we will see why connection refused exception comes and how to solve java.net.ConnectException: Connection refused: connect Exception in Java. Normally, Java books like Head First Java won't teach you much about how to deal with such exception, it's simply too much to ask for a beginner's book. java.net.ConnectException: Connection refused Error - Possible reasons Connection refused is a clear case of a client trying to connect http://javarevisited.blogspot.com/2013/02/java-net-ConnectException-Connection-refused.html on a TCP port but not able to succeed. Here are some of the possible reason why java.net.ConnectException: Connection refused: connect comes: 1) Client and Server, either or both of them are not in the network. Yes it's possible that they are not connected to LAN or internet or any other network, in that case, Java will throw "java.net.ConnectException: Connection refused" exception on client side. 2) Server is not running The second most common reason is the server is down and not running. In that case, also you will get java.net.ConnectException: Connection refused error. What I don't like is that the message it gives, no matter what is the reason it prints the same error. By the way, you can use following networking commands e.g. ping to check if the server is running and listening on the port. 3) The server is running but not listening on the port, a client is trying to connect. This is another common cause of "java.net.ConnectException: Connection refused", where the server is running but listening on the different port. It's hard to figure out this case, until, you think about it and verify the configuration. If you are working on a large project and have a
This Site Careers Other all forums Forum: Sockets and Internet Protocols how to resolve java.net.ConnectException: https://coderanch.com/t/207717/sockets/java/resolve-java-net-ConnectException-Connection Connection refused: connect elay Raja Greenhorn Posts: 27 posted 8 years ago I want to upload a file with size (>2GB).So i am http://community.sahipro.com/forums/discussion/4904/connection-refused-connect-error-using-ant using applet with servlet to upload it.When i connect applet to servlet using URL class from Java.net which is shown below:- URL serverUrl=new error during URL("http://localhost:8084/JFileUpload/TestServlet"); URLConnection connection=serverUrl.openConnection(); connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(false); connection.setRequestProperty("Content-type","application/octet-stream"); i am getting exception when executing the line shown below:- DataOutputStream outStream=new DataOutputStream(connection.getOutputStream()); java.net.ConnectException: Connection refused: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.Socket.connect(Socket.java:520) at java.net.Socket.connect(Socket.java:470) at sun.net.NetworkClient.doConnect(NetworkClient.java:157) at sun.net.www.http.HttpClient.openServer(HttpClient.java:388) at sun.net.www.http.HttpClient.openServer(HttpClient.java:523) at sun.net.www.http.HttpClient.
a Sahi Pro user looking for commercial support, please email support @ sahipro.com with your query. Connection refused: connect error using ANT NewYorker123 May 2013 edited May 2013 in Sahi - Open Source Exact Terminal Output C:\>ant -f "C:\Program Files (x86)\Sahi\demo.xml" Buildfile: C:\Program Files (x86)\Sahi\demo.xml sahitests: start: [java] Sahi properties file = C:\Program Files (x86)\Sahi\config\sahi.properties [java] Sahi user properties file = C:\Program Files (x86)\Sahi\userdata\config\userdata.properties [java] Added shutdown hook. ff: runfftests: [sahi] [sahi] suiteName = C:\Program Files (x86)\Sahi\userdata\scripts\demo\demo.suite [sahi] base = http://tester4/Console/ [sahi] sahiHost = localhost [sahi] port = 9999 [sahi] threads = 300 [sahi] browserType = firefox [sahi] this.isSingleSession == false [sahi] Added shutdown hook. [sahi] http://localhost:9999/_s_/dyn/Suite_start?suite=C:\Program+Files+(x86)\Sahi\userdata\scripts\demo\demo.suite&base=http://tester4/Console% 2F&threads=300&sahisid=sahi_932f9ef800fdf04020083b003676e72dbf23&browserType=firefox&html=C%3A%5CProgram+Files+%28x86%29%5CSahi%5Cuserdata%5Clogs%5Cplayback%5Cmydir [sahi] java.net.ConnectException: Connection refused: connect [sahi] at java.net.DualStackPlainSocketImpl.connect0(Native Method) [sahi] at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69) [sahi] at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) [sahi] at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) [sahi] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) [sahi] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157) [sahi] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391) [sahi] at java.net.Socket.connect(Socket.java:579) [sahi] at java.net.Socket.connect(Socket.java:528) [sahi] at sun.net.NetworkClient.doConnect(NetworkClient.java:180) [sahi] at sun.net.www.http.HttpClient.openServer(HttpClient.java:378) .................. ....................... [sahi] STATUS:FAILURE [java] >>>> Sahi started. Listening on port: 9999 [java] >>>> Configure your browser to use this server and port as its proxy [java] >>>> Browse any page and CTRL-ALT-DblClick on the page to bring up the Sahi Controller [java] [java] Reading browser types from: C:\Program Files (x86)\Sahi\userdata\config\browser_types.xml [java] [parallel] Shutting down ... [java] Java Result: 1 BUILD SUCCESSFUL Total time: 7 minutes 0 sec