Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package downloadwolkflow; /** * * @author AiWangtao */ import java.io.IOException; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.ResponseHandler; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; /** * This example demonstrates the use of the {@link ResponseHandler} to simplify * the process of processing the HTTP response and releasing associated resources. */ public class httpTest { public final static void main(String[] args) throws Exception { CloseableHttpClient httpclient = HttpClients.createDefault(); try { HttpGet httpget = new HttpGet( "http://www.myexperiment.org/workflows/16/download/Pathways_and_Gene_annotations_for_QTL_region-v7.t2flow?version=7"); //System.out.println("Executing request " + httpget.getRequestLine()); // Create a custom response handler ResponseHandler<String> responseHandler = new ResponseHandler<String>() { @Override public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException { int status = response.getStatusLine().getStatusCode(); if (status >= 200 && status < 300) { HttpEntity entity = response.getEntity(); return entity != null ? EntityUtils.toString(entity) : null; } else { throw new ClientProtocolException("Unexpected response status: " + status); } } }; String responseBody = httpclient.execute(httpget, responseHandler); System.out.println("----------------------------------------"); System.out.println(responseBody); } finally { httpclient.close(); } } }