为爬网程序使用Jsoup时，爬网程序出现连接超时错误

Question

我正试图在办公室执行一个爬网程序。一个非常基本的程序，可以在互联网上使用，在我的家用电脑中运行良好。然而，当我试图在办公室电脑中运行相同的程序时，我遇到了连接超时错误。我认为这是代理问题，并尝试从eclipse内部浏览器访问一些网站，结果也很好。

 Document doc = Jsoup.connect("http://flipkart.com/").timeout(0).get(); 

请在我的堆栈跟踪下面找到

Exception in thread "main" java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:449)
at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:434)
at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:181)
at org.jsoup.helper.HttpConnection.get(HttpConnection.java:170)
at org.syntel.crawler.Crawler.processPage(Crawler.java:44)
at org.syntel.crawler.Crawler.main(Crawler.java:20)

如何解决此问题？

Answer 1

@alkis提出建议：

请尝试设置用户代理。如果您正在使用代理检查其他问题：如何为Jsoup（HTML解析器）添加代理支持？

Answer 2

尝试使用：

System.out.println("Testing JSOUPn--------------");
Proxy proxy = new Proxy(                                      //
        Proxy.Type.HTTP,                                      //
        InetSocketAddress.createUnresolved("www.yourPROXY.com", 80) //
);
Document doc = Jsoup.connect("http://en.wikipedia.org/").proxy(proxy).get();
Elements newsHeadlines = doc.select("#mp-itn b a");
System.out.println(newsHeadlines.html());