url - Proxy Check in Java -

-

i try check if proxy online or not. everytime exception thrown. tried system.setproperty (), doesn't work either...

my method:

public static boolean isonline(string host, int port) {     string url = "http://www.google.com";     try     {         proxy proxy = new proxy(proxy.type.http, new inetsocketaddress(host, port));         httpurlconnection connection = (httpurlconnection) new url(url).openconnection(proxy);         connection.connect();         return true;      } catch (exception e)     {         return false;     } }

the exception:

java.net.connectexception: connection refused: connect @ java.net.dualstackplainsocketimpl.connect0(native method) @ java.net.dualstackplainsocketimpl.socketconnect(dualstackplainsocketimpl.java:79) @ java.net.abstractplainsocketimpl.doconnect(abstractplainsocketimpl.java:345) @ java.net.abstractplainsocketimpl.connecttoaddress(abstractplainsocketimpl.java:206) @ java.net.abstractplainsocketimpl.connect(abstractplainsocketimpl.java:188) @ java.net.plainsocketimpl.connect(plainsocketimpl.java:172) @ java.net.socket.connect(socket.java:589) @ java.net.socket.connect(socket.java:538) @ sun.net.networkclient.doconnect(networkclient.java:180) @ sun.net.www.http.httpclient.openserver(httpclient.java:432) @ sun.net.www.http.httpclient$1.run(httpclient.java:484) @ sun.net.www.http.httpclient$1.run(httpclient.java:482) @ java.security.accesscontroller.doprivileged(native method) @ sun.net.www.http.httpclient.privilegedopenserver(httpclient.java:481) @ sun.net.www.http.httpclient.openserver(httpclient.java:522) @ sun.net.www.http.httpclient.<init>(httpclient.java:211) @ sun.net.www.http.httpclient.new(httpclient.java:308) @ sun.net.www.http.httpclient.new(httpclient.java:326) @ sun.net.www.protocol.http.httpurlconnection.getnewhttpclient(httpurlconnection.java:1167) @ sun.net.www.protocol.http.httpurlconnection.plainconnect0(httpurlconnection.java:1146) @ sun.net.www.protocol.http.httpurlconnection.plainconnect(httpurlconnection.java:997) @ sun.net.www.protocol.http.httpurlconnection.connect(httpurlconnection.java:931) @ viewer.proxycheck.isonline(proxycheck.java:18) @ viewer.viewer.main(viewer.java:7)

thanks time!

try this:

public static boolean isonline(){     system.setproperty("http.proxyhost", "failproxyip");     system.setproperty("http.proxyport", "failproxyport");     try {         httpurlconnection connection = (httpurlconnection)new url("http://www.google.com").openconnection();         connection.connect();         return true;     } catch (exception e) {         return false;     } }  public static void main(string[] args) {     system.out.println(isonline()); //prints false }

Comments

Post a Comment

Popular posts from this blog

java - Oracle EBS .ClassNotFoundException: oracle.apps.fnd.formsClient.FormsLauncher.class ERROR -

-
i need in configuring java on machine because, when try loading forms, loader goes in circles , gives error: java.lang.classnotfoundexception: oracle.apps.fnd.formsclient.formslauncher.class @ sun.plugin2.applet.applet2classloader.findclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass0(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadclass(unknown source) @ java.lang.classloader.loadclass(unknown source) @ sun.plugin2.applet.plugin2classloader.loadcode(unknown source) @ sun.plugin2.applet.plugin2manager.createapplet(unknown source) @ sun.plugin2.applet.plugin2manager$appletexecutionrunnable.run (unknown source) @ java.lang.thread.run(unknown source) i have tried re-installing firefox, older versions of java runtime environments, disabling proxy. what missing? application working on other machines. i spent around 100 hours finding s
Read more

c# - how to use buttonedit in devexpress gridcontrol -

-
Image
i trying create gridcontrol buttonedit in 1 of columns. when user clicks button edit, popups form select product. when selection done on popup, returns datarow selection main grid below. but when column loses focus, value wrote column disappear. here code creates gridcontrol's data , buttonedit's click event. private void frmsiparisnew_load(object sender, eventargs e) { dt = new datatable(); dt.columns.add("malzeme_kodu",typeof(string)); dt.columns.add("malzeme_aciklama", typeof(string)); dt.columns.add("adet", typeof(decimal)); dt.columns.add("birim", typeof(string)); dt.columns.add("fiyat", typeof(decimal)); dt.columns.add("kur", typeof(string)); dt.columns.add("tutar", typeof(decimal)); datarow dr = dt.newrow(); dt.rows.add(dr); gc.datasource = dt; } private void repositoryitembuttoneditmal
Read more

nvd3.js - angularjs-nvd3-directives setting color in legend as well as in chart elements -

-
good morning i using angularjs-nvd3-directives, great, having difficulties when setting color of multi bar chart ( http://cmaurer.github.io/angularjs-nvd3-directives/multi.bar.chart.html ). the show legend works well: <div ng-controller="examplectrl"> <nvd3-multi-bar-chart data="exampledata" id="showlegendexample" width="550" height="300" showxaxis="true" showyaxis="true" xaxistickformat="xaxistickformatfunction()" showlegend="true"> <svg></svg> </nvd3-multi-bar-chart> </div> but when add option in conjunction color="colorfunction()" where, var colorarray = ['#ff0000', '#0000ff', '#ffff00', '#00ffff']; $scope.colorfunction = function() { return function(d, i) { return colorarray[i]; }; } the color of cha
Read more