java.net.URL例子

    /**      * 网页内容获取      * @throws IOException      */     public void getWebContext() throws IOException {         InputStream in;         URL url = new URL("http://localhost:8080/");         HttpURLConnection connection = (HttpURLConnection) url.openConnection();         connection = (HttpURLConnection) url.openConnection();         // 模拟成IE         connection.setRequestProperty("User-Agent",                 "Mozilla/4.0 (compatible; MSIE 6.0; Windows 2000)"); //        connection.connect();         in = connection.getInputStream();         BufferedReader breader = new BufferedReader(new InputStreamReader(in,                 "GBK"));         String str = breader.readLine();         while (str != null) {             System.out.println(str);             str = breader.readLine();         }     }