try{    String path = "https://www.AA.com/AA";        URL url = new URL(path);        HttpURLConnection con = (HttpURLConnection) url.openConnection();        con.setRequestMethod("GET");        /*con.setRequestProperty("Content-Type",                "application/x-www-form-urlencoded");        con.setRequestProperty("Content-Length",                String.valueOf(path.length()));*/        con.setRequestProperty(                "User-Agent",                "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.104 Safari/537.36");        con.setRequestProperty("Cookie", "AAId=12345678");        con.connect();        if (con.getResponseCode() == 200) {                    BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));            String line;            StringBuilder sb = new StringBuilder();            while ((line = br.readLine()) != null) {// 循环读取流                sb.append(line);            }            br.close();// 关闭流            System.out.println(sb);        }else{            System.out.println(con.getResponseCode());        }        con.disconnect();// 断开连接}catch (Exception e){    System.out.println(e);}