AndroidHttpClient 已弃用

Question

好吧，我的 ImageDownloader class 被新的 SDK 损坏了。我现在将如何着手进行这项工作？有没有可能我可以只替换下面的一些 classes 而无需对我的代码进行重大更改？

static Bitmap downloadBitmap(String url) {
        final AndroidHttpClient client = AndroidHttpClient.newInstance("Android");
        final HttpGet getRequest = new HttpGet(url);

        try {
            HttpResponse response = client.execute(getRequest);
            final int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode != HttpStatus.SC_OK) {
                Log.w("ImageDownloader", "Error " + statusCode + " while retrieving bitmap from " + url);
                return null;
            }

            final HttpEntity entity = response.getEntity();
            if (entity != null) {
                InputStream inputStream = null;
                try {
                    inputStream = entity.getContent();
                    final Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
                    return bitmap;
                } finally {
                    if (inputStream != null) {
                        inputStream.close();
                    }
                    entity.consumeContent();
                }
            }
        } catch (Exception e) {
            // Could provide a more explicit error message for IOException or IllegalStateException
            getRequest.abort();
            Log.w("ImageDownloader", "Error while retrieving bitmap from " + url);
        } finally {
            if (client != null) {
                client.close();
            }
        }
        return null;
    }

Answer 1

你可以使用这个：

compile 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'

或 gradle 文件中的这个：

android {
    compileSdkVersion 23
    buildToolsVersion '23.0.2'
    useLibrary 'org.apache.http.legacy' //<-this line only

或者您可以只更新代码并像这样使用 HttpURLConnection：

URL url = new URL("your_url");
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setReadTimeout(10000);
httpURLConnection.setConnectTimeout(15000);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
setupDataToDB();
OutputStream outputStream = httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream));
bufferedWriter.write(StringGenerator.queryResults(nameValuePairs));
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
httpURLConnection.connect();
InputStream inputStream = new BufferedInputStream(httpURLConnection.getInputStream());

希望对您有所帮助！！！

Answer 2

您可以从以下位置获取 inputStream：

HttpURLConnection urlConnection = null;
try {
    URL url = new URL(path);
    urlConnection = (HttpURLConnection) url.openConnection();
    urlConnection.setConnectTimeout(CONNECTON_TIMEOUT_MILLISECONDS);
    urlConnection.setReadTimeout(CONNECTON_TIMEOUT_MILLISECONDS);
    inputStream = urlConnection.getInputStream();
    //add code to take bitmap here
} finally {
    if (urlConnection != null) {
        urlConnection.disconnect();
    }
}

然后从中获取位图。

Answer 3

您还可以浏览 Retrofit http 客户端

AndroidHttpClient 已弃用

AndroidHttpClient is deprecated

java

android

http

httpconnection

androidhttpclient