1

我正在编写一个需要使用 GET 变量访问 URL 的 Android 程序，这些变量将被记录到数据库中。我需要做的就是打开一个 URL，这样 Web 服务器就会记录数据！我该怎么办？

谢谢

4

3 回答 3

2 
// default HTTP Client
            DefaultHttpClient  httpClient = new DefaultHttpClient();
            HttpGet httpGet = new HttpGet(url);
        try {
            HttpResponse httpResponse = httpClient.execute(httpGet);
            HttpEntity httpEntity = httpResponse.getEntity();
            is = httpEntity.getContent();           

        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
于 2013-04-15T05:56:53.513 回答
0

用这个。

Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("URL HERE"));
startActivity(browserIntent);

希望这可以帮助。

编辑：

好的，用这个。它在不打开浏览器的情况下调用 URL

HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpGet httpGet = new HttpGet("URL HERE");
HttpResponse response = httpClient.execute(httpGet, localContext);
于 2013-04-15T05:36:43.803 回答
0

您还可以使用 HttpUrlConnection。示例代码 -

// Given a URL, establishes an HttpUrlConnection and retrieves
// the web page content as a InputStream, which it returns as
// a string.

private String downloadUrl(String myurl) throws IOException {
    InputStream is = null;
    // Only display the first 500 characters of the retrieved
    // web page content.
    int len = 500;

try {
    URL url = new URL(myurl);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setReadTimeout(10000 /* milliseconds */);
    conn.setConnectTimeout(15000 /* milliseconds */);
    conn.setRequestMethod("GET");
    conn.setDoInput(true);
    // Starts the query
    conn.connect();
    int response = conn.getResponseCode();
    Log.d(DEBUG_TAG, "The response is: " + response);
    is = conn.getInputStream();

    // Convert the InputStream into a string
    String contentAsString = readIt(is, len);
    return contentAsString;

// Makes sure that the InputStream is closed after the app is
// finished using it.
} finally {
    if (is != null) {
        is.close();
    } 
}
}

// Reads an InputStream and converts it to a String.
public String readIt(InputStream stream, int len) throws IOException, UnsupportedEncodingException {
    Reader reader = null;
    reader = new InputStreamReader(stream, "UTF-8");        
    char[] buffer = new char[len];
    reader.read(buffer);
    return new String(buffer);
}

很明显，因为它是一个网络调用，所以你不能在主/UI线程中执行它。所以你可以在异步任务中做到这一点。更多细节和来源

于 2016-07-01T15:48:03.490 回答