我正在建立与YouTube网址的http连接，并使用jsoup解析内容
我正在建立1550个连接。.这些URL持续不断地在200至300个网址之间返回youtube的默认页面来源。
我的代码是
HttpURLConnection conn = (HttpURLConnection) website.openConnection();
conn.setInstanceFollowRedirects(true);
conn.connect();
System.out.println("\n\nresponse code --> " + conn.getResponseCode());
System.out.println("response msg --> " + conn.getResponseMessage());
InputStream inputstream = conn.getInputStream();
Document doc = Jsoup.parse(inputstream, null, url);
Elements metaElements = doc.head().getElementsByTag("meta");
System.out.println(metaElements);
我在for循环中打印了URL https://www.youtube.com/watch?v=7ecjgBNwxYI的标题和描述20次。 输出是
当我在同一网址的for循环中运行此代码时，我得到不同的响应... 我已经打印了网址的标题和说明
run:
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Enjoy the videos and music you love, upload original content and share it all with friends, family and the world on YouTube.
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="origin-trial" data-feature="Web Components V0" data-expires="2020-10-23" content="AhbmRDASY7NuOZD9cFMgQihZ+mQpCwa8WTGdTx82vSar9ddBQbziBfZXZg+ScofvEZDdHQNCEwz4yM7HjBS9RgkAAABneyJvcmlnaW4iOiJodHRwczovL3lvdXR1YmUuY29tOjQ0MyIsImZlYXR1cmUiOiJXZWJDb21wb25lbnRzVjAiLCJleHBpcnkiOjE2MDM0ODY4NTYsImlzU3ViZG9tYWluIjp0cnVlfQ==">
<meta http-equiv="origin-trial" data-feature="Web Components V0" data-expires="2020-10-27" content="Av2+1qfUp3MwEfAFcCccykS1qFmvLiCrMZ//pHQKnRZWG9dldVo8HYuJmGj2wZ7nDg+xE4RQMQ+Ku1zKM3PvYAIAAABmeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZS5jb206NDQzIiwiZmVhdHVyZSI6IldlYkNvbXBvbmVudHNWMCIsImV4cGlyeSI6MTYwMzgzNjc3MiwiaXNTdWJkb21haW4iOnRydWV9">
<meta http-equiv="origin-trial" data-feature="Web Components V0" data-expires="2021-01-08" content="AixUK+8UEShlt6+JX1wy9eg+XL+eV5PYSEDPH3C90JNVbIkE1Rg1FyVUfu2bZ/y6Pm1xbPLzuwHYHjv4uKPNnA4AAABqeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXByb2QuY29tOjQ0MyIsImZlYXR1cmUiOiJXZWJDb21wb25lbnRzVjAiLCJleHBpcnkiOjE2MTAwNjQ0MjMsImlzU3ViZG9tYWluIjp0cnVlfQ==">
<meta http-equiv="origin-trial" data-feature="Web Components V0" data-expires="2021-03-09" content="AhHpq2nUT6fqP0Kmkq49EWIcl2P1LK1ceU05BoiVnWi8ZIWDdmX/kMwL+ZtuC3oIf0tns8XnO5fm946JEzPVEwgAAABqeyJvcmlnaW4iOiJodHRwczovL2MuZ29vZ2xlcnMuY29tOjQ0MyIsImZlYXR1cmUiOiJXZWJDb21wb25lbnRzVjAiLCJleHBpcnkiOjE2MTIyMjM5OTksImlzU3ViZG9tYWluIjp0cnVlfQ==">
<meta name="description" content="Enjoy the videos and music you love, upload original content and share it all with friends, family and the world on YouTube.">
<meta name="keywords" content="video, sharing, camera phone, video phone, free, upload">
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
response code --> 200
response msg --> OK
description ---> Introducing a new approach to email. Learn about the key features of Inbox Insight to quickly get started. This App comes free for your iPhone and Android wi...
Introducing Inbox Insight for Zoho Mail
BUILD SUCCESSFUL (total time: 14 seconds)
对于一个连接，您会看到youtube默认说明，开头是“返回喜欢的视频和音乐，上传原始内容”。
这是由于在给定的时间限制内允许的最大连接数阈值