如何使用Java从网站检索URL？

我想使用HTTP GET和POST命令从网站检索URL并解析HTML.我该怎么做呢？

您可以将HttpURLConnection与URL结合使用.

URL url = new URL("http://example.com");
HttpURLConnection connection = (HttpURLConnection)url.openConnection();
connection.setRequestMethod("GET");
connection.connect();

InputStream stream = connection.getInputStream();
// read the contents using an InputStreamReader