HttpClient异步请求资源代码,Java代码库,德仔网

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【Java】 HttpClient异步请求资源

作者:答复哈 / 发布于2011/6/7/ 936

<div>package demo;</div>
import java.util.concurrent.CountDownLatch;</div>
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.nio.client.DefaultHttpAsyncClient;
import org.apache.http.nio.client.HttpAsyncClient;
import org.apache.http.nio.concurrent.FutureCallback;
import org.apache.http.nio.reactor.IOReactorException;</div>
<div>public class Main {</div>
<div>/**
 * @param args
 * @throws IOReactorException 
 * @throws InterruptedException 
 */
public static void main(String[] args) throws IOReactorException, InterruptedException {
final HttpAsyncClient httpclient = new DefaultHttpAsyncClient();
 httpclient.start();
 HttpGet[] requests = new HttpGet[] {
 new HttpGet("<a href="http://www.apache.org/">http://www.apache.org/</a>"),
 new HttpGet("<a href="https://www.verisign.com/">https://www.verisign.com/</a>"),
 new HttpGet("<a href="http://www.google.com/">http://www.google.com/</a>")
 };
 final CountDownLatch latch = new CountDownLatch(requests.length);
 try {
 for (final HttpGet request: requests) {
 httpclient.execute(request, new FutureCallback<HttpResponse>() {</div>
<div> public void completed(final HttpResponse response) {
 latch.countDown();
 System.out.println(request.getRequestLine() + "->" + response.getStatusLine());
 }
<div> public void failed(final Exception ex) {
 latch.countDown();
 ex.printStackTrace();
 }
<div> public void cancelled() {
 latch.countDown();
 }
<div> });
 }
 System.out.println("Doing...");
 }finally {
 latch.await();
 httpclient.shutdown();
 }
 System.out.println("Done");
}
<div>}

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　异步请求资源　

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.HttpClient异步请求资源