Question

我尝试从局域网中的来源通过http获取xml响应中的内容。当我在浏览器中打开网址时，加载时间是173毫秒，但是当我想要在我的APP内部加载时，加载时间超过15秒（使用我的手机测试，而不是模拟器）。

我试过这两种方式：

    Log.d("start download",url);
    URL serverAddress = null;
    try {
        serverAddress = new URL(url);
        URLConnection urlConnection = serverAddress.openConnection();
        InputStream in = new BufferedInputStream(urlConnection.getInputStream());
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String source = "";
        String tmp;
        while ((tmp = reader.readLine()) != null) {
            source += tmp;
        }
        Log.d("end download",url);
        return source;
    } catch (MalformedURLException e) {
        e.printStackTrace();
        return "FALSE";
    } catch (IOException e) {
        e.printStackTrace();
        return "FALSE";
    }

和

    Log.d("Starte download",url);
    try {
        HttpParams httpParameters = new BasicHttpParams();
        httpParameters.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
        HttpConnectionParams.setConnectionTimeout(httpParameters, 5000);
        HttpConnectionParams.setSoTimeout(httpParameters, 10000);
        HttpClient client = new DefaultHttpClient(httpParameters);
        HttpGet get = new HttpGet(url);
        HttpResponse response = client.execute(get);
        InputStream in = response.getEntity().getContent();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String source = "";
        String tmp;
        while ((tmp = reader.readLine()) != null) {
            source += tmp;
        }
        Log.d("Beende download",url);
        return source;
    } catch (IOException io) {
        Log.e("Downloader", "Couldn't downlaod " + url);
        io.printStackTrace();
        return "FALSE";
    }

还尝试了：urlConnection.setUseCaches（false）和urlConnection.setConnectTimeout（1000），结果相同

更新

我添加一些Log.d来查看哪个部分需要时间：

From Log.d（“start download”，url）;直到Linereader：180ms

10 ms pro 5 - 30行

该文件有3000行

通过http从XML文件获取内容非常慢

0 个答案: