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
最后更新于：2022-04-01 23:00:00
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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](https://github.com/Arronlong/httpclientUtil)。
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