轻松把玩HttpClient之封装HttpClient工具类(四)，单线程调用及多线程批量调用测试

来源：互联网发布：ubuntu terminator 编辑：程序博客网时间：2024/05/29 04:46

转载地址：http://blog.csdn.net/xiaoxian8023/article/details/49910885

本文主要来分享一下该工具类的测试结果。工具类的整体源码不再单独分享，源码基本上都已经在文章中了。开始我们的测试。

单线程调用测试：

    public static void testOne() throws HttpProcessException{                    System.out.println("--------简单方式调用（默认post）--------");          String url = "http://tool.oschina.net/";          //简单调用          String resp = HttpClientUtil.send(url);          System.out.println("请求结果内容长度："+ resp.length());                    System.out.println("\n#################################\n");                    System.out.println("--------加入header设置--------");          url="http://blog.csdn.net/xiaoxian8023";          //设置header信息          Header[] headers=HttpHeader.custom().userAgent("Mozilla/5.0").build();          //执行请求          resp = HttpClientUtil.send(url, headers);          System.out.println("请求结果内容长度："+ resp.length());                System.out.println("\n#################################\n");                    System.out.println("--------代理设置（绕过证书验证）-------");          url="https://www.facebook.com/";          HttpClient client= HCB.custom().timeout(10000).proxy("127.0.0.1", 8087).ssl().build();//采用默认方式（绕过证书验证）          //执行请求          resp = HttpClientUtil.send(client,url);          System.out.println("请求结果内容长度："+ resp.length());                System.out.println("\n#################################\n");                System.out.println("--------代理设置（自签名证书验证）+header+get方式-------");          url = "https://sso.tgb.com:8443/cas/login";          client= HCB.custom().timeout(10000).ssl("D:\\keys\\wsriakey","tomcat").build();          headers=HttpHeader.custom().keepAlive("false").connection("close").contentType(Headers.APP_FORM_URLENCODED).build();          //执行请求          resp = HttpClientUtil.send(client, url, HttpMethods.GET, headers);          System.out.println("请求结果内容长度："+ resp.length());                System.out.println("\n#################################\n");      }

测试结果如下：

可以看到4次调用，都没有问题。

那么现在试试多线程调用吧。我定义一个数组，里面有20篇文章的地址。我启动20个线程的线程池来测试，写了一个20*50次的for循环，看看全部线程结束时有没有报错，能用多长时间：

    public static void testMutilTask(){          // URL列表数组          String[] urls = {                  "http://blog.csdn.net/xiaoxian8023/article/details/49862725",                  "http://blog.csdn.net/xiaoxian8023/article/details/49834643",                  "http://blog.csdn.net/xiaoxian8023/article/details/49834615",                  "http://blog.csdn.net/xiaoxian8023/article/details/49834589",                  "http://blog.csdn.net/xiaoxian8023/article/details/49785417",                                    "http://blog.csdn.net/xiaoxian8023/article/details/48679609",                  "http://blog.csdn.net/xiaoxian8023/article/details/48681987",                  "http://blog.csdn.net/xiaoxian8023/article/details/48710653",                  "http://blog.csdn.net/xiaoxian8023/article/details/48729479",                  "http://blog.csdn.net/xiaoxian8023/article/details/48733249",                        "http://blog.csdn.net/xiaoxian8023/article/details/48806871",                  "http://blog.csdn.net/xiaoxian8023/article/details/48826857",                  "http://blog.csdn.net/xiaoxian8023/article/details/49663643",                  "http://blog.csdn.net/xiaoxian8023/article/details/49619777",                  "http://blog.csdn.net/xiaoxian8023/article/details/47335659",                        "http://blog.csdn.net/xiaoxian8023/article/details/47301245",                  "http://blog.csdn.net/xiaoxian8023/article/details/47057573",                  "http://blog.csdn.net/xiaoxian8023/article/details/45601347",                  "http://blog.csdn.net/xiaoxian8023/article/details/45569441",                  "http://blog.csdn.net/xiaoxian8023/article/details/43312929",                   };                    // 设置header信息          Header[] headers = HttpHeader.custom().userAgent("Mozilla/5.0").build();          HttpClient client= HCB.custom().timeout(10000).build();                     long start = System.currentTimeMillis();                      try {                  int pagecount = urls.length;                  ExecutorService executors = Executors.newFixedThreadPool(pagecount);                  CountDownLatch countDownLatch = new CountDownLatch(pagecount*100);                           for(int i = 0; i< pagecount*100;i++){                      //启动线程抓取                      executors.execute(new GetRunnable(urls[i%pagecount], headers, countDownLatch).setClient(client));                  }                  countDownLatch.await();                  executors.shutdown();              } catch (InterruptedException e) {                  e.printStackTrace();              } finally {                  System.out.println("线程" + Thread.currentThread().getName() + ", 所有线程已完成，开始进入下一步！");              }                             long end = System.currentTimeMillis();              System.out.println("总耗时（毫秒）： -> " + (end - start));              //(7715+7705+7616)/3= 23 036/3= 7 678.66---150=51.2              //(9564+8250+8038+7604+8401)/5=41 857/5=8 371.4--150              //(9803+8244+8188+8378+8188)/5=42 801/5= 8 560.2---150      }             static class GetRunnable implements Runnable {              private CountDownLatch countDownLatch;              private String url;              private Header[] headers;              private HttpClient client = null;                            public GetRunnable setClient(HttpClient client){                  this.client = client;                  return this;              }                    public GetRunnable(String url, Header[] headers,CountDownLatch countDownLatch){                  this.url = url;                  this.headers = headers;                  this.countDownLatch = countDownLatch;              }              @Override              public void run() {                  try {                      String response = null;                      if(client!=null){                          response = HttpClientUtil.send(client, url, headers);                      }else{                          response =  HttpClientUtil.send(url, headers);                      }                      System.out.println(Thread.currentThread().getName()+"--获取内容长度："+response.length());                  } catch (HttpProcessException e) {                      e.printStackTrace();                  } finally {                      countDownLatch.countDown();                  }              }          }

定义了一个ExecutorService的线程池，使用CountDownLatch来保证所有线程都运行完毕，测试一下看看：

    public static void main(String[] args) throws Exception {      /       testOne();          testMutilTask();      }

测试结果如下：

从结果中可以清楚的看到执行1000次调用，总消耗是51165，平均51ms/个，速度快，而且没有报错。

好了，本工具就分享到这里，下次会分享异步的HttpClient，敬请期待。
代码已上传至：https://github.com/Arronlong/httpclientUtil。

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