Sometimes you need to connect to internet from your java programs. It’s easy to do via URLConnection. But when you are behind the proxy server, your program doesn’t know how to deal with it. Configuration of proxy server is fairly easy. All you need to do is to setup following system properties:
System.setProperty("http.proxySet", "true");
System.setProperty("http.proxyHost", "name_of_proxy_server");
System.setProperty("http.proxyPort", "proxy_server_port_number");
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