從網站到字符串的結果

Question

如何將網站的結果（例如https://blockchain.info/de/q/24hrprice）轉換爲字符串/整數？我必須從網站上閱讀源代碼嗎？

我正在開發Android Studio。

Answer 1

BufferedReader in = null; 
try { 
    String urlStr = "https://blockchain.info/de/q/24hrprice"; 
    URL url = new URL(urlStr); 
    URLConnection con = url.openConnection(); 
    in = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8")); 
    String input; 
    while ((input = in.readLine()) != null) { 
    System.out.println(input); //you can parse input as Integer or Double now 
    } 

} catch (MalformedURLException ex) { 
    System.err.println(ex); 
} catch (IOException ex) { 
    System.err.println(ex); 
} finally { 
    try { 
    in.close(); 
    } catch (Exception ex) { 
    System.err.println(ex); 
    } 
}