REST in Java

You may want to call the REST web service from Java. Following is the code for a simple Web Service client for the flickr web services interface.

pacage com.vaani.rest; import java.net.HttpURLConnection; import java.net.InetSocketAddress; import java.net.Proxy; import java.net.SocketAddress; import java.net.URL; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; public class FlickrClient {     public static void main(String[] args) {         String flickrURL = "http://api.flickr.com/services/rest/?method=flickr.test.echo&name=value&api_key=[yourflickrkey]";         try {             SocketAddress addr = new InetSocketAddress("[proxy]", 9090);             Proxy proxy = new Proxy(Proxy.Type.HTTP, addr);             URL u = new URL("http://api.flickr.com/services/rest/?method=flickr.test.echo&name=value&api_key=[yourflickrkey]");             HttpURLConnection uc = (HttpURLConnection) u.openConnection(proxy);             uc.setRequestProperty("Accept", "*/*");             uc.setRequestProperty("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");             uc.setRequestProperty("Accept-Language", "en-us,en;q=0.5");             uc.setRequestProperty("Keep-Alive", "300");             uc.setRequestProperty("ucection", "keep-alive");             String proxyUser = "[netUserId]";             String proxyPassword = "[netPassword]";             uc.setRequestProperty("Proxy-Authorization", "NTLM " + new sun.misc.BASE64Encoder().encode((proxyUser + ":" + proxyPassword).getBytes()));             DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();             Document doc = docBuilder.parse(uc.getInputStream());             System.out.println(doc.getDocumentElement().getTagName());             System.out.println();         } catch (Exception e) {             e.printStackTrace();         }     } }