已弃用 HTTP 类 Android 棒棒糖 5.1

Question

org.apache.http类和AndroidHttpClient class have been deprecated in Android 5.1. These classes are no longer being maintained and you should migrate any app code using these APIs to the URLConnection类尽快

https://developer.android.com/about/versions/android-5.1.html#http

建议切换到 URLConnection 类。没有足够的文档来准确说明如何从应用程序进行 post 调用。

目前我正在使用这个

public void postData()
{
    // Create a new HttpClient and Post Header
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");

    try
    {
        // Add your data
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair(2);
        nameValuePairs.add(new BasicNameValuePair("id", "12345"));
        nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        // Execute HTTP Post Request
        HttpResponse response = httpclient.execute(httppost);
     } 
     catch (ClientProtocolException e) 
     {
        // TODO Auto-generated catch block
     } 
     catch (IOException e) 
     {
        // TODO Auto-generated catch block
     }
}

我如何使用 UrlConnections 来做到这一点？

Answer 1

使用这个 httpmime-4.1-beta1.jar 试试这个代码：-

String url = "http://www.yoursite.com/script.php";
HttpClient client = new DefaultHttpClient();
client.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
HttpPost postMethod = new HttpPost(url);
MultipartEntity entity = new MultipartEntity();
try 
{
    entity.addPart("id", new StringBody("123"));
    entity.addPart("stringdata", new StringBody("AndDev is Cool!"));
    postMethod.setEntity(entity);
    HttpResponse response;
    response = client.execute(postMethod);
    String result = EntityUtils.toString(response.getEntity());
    JSONArray ja = new JSONArray(result);
    // ITERATE THROUGH AND RETRIEVE CLUB FIELDS
    int n = ja.length();
    for (int i = 0; i < n; i++) 
    {
      // GET INDIVIDUAL JSON OBJECT FROM JSON ARRAYJSONObject jo = ja.getJSONObject(i);
      // RETRIEVE EACH JSON OBJECT'S FIELDS
      String status = jo.getString("status");
      // Log.e("status",status);
    }
}
catch (Exception e)
{
   e.printStackTrace();
}

Answer 2

想到使用 HttpUrlConnection 共享我的代码

public String  performPostCall(String requestURL,
            HashMap<String, String> postDataParams) {

        URL url;
        String response = "";
        try {
            url = new URL(requestURL);

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setReadTimeout(15000);
            conn.setConnectTimeout(15000);
            conn.setRequestMethod("POST");
            conn.setDoInput(true);
            conn.setDoOutput(true);


            OutputStream os = conn.getOutputStream();
            BufferedWriter writer = new BufferedWriter(
                    new OutputStreamWriter(os, "UTF-8"));
            writer.write(getPostDataString(postDataParams));

            writer.flush();
            writer.close();
            os.close();
            int responseCode=conn.getResponseCode();

            if (responseCode == HttpsURLConnection.HTTP_OK) {
                String line;
                BufferedReader br=new BufferedReader(new InputStreamReader(conn.getInputStream()));
                while ((line=br.readLine()) != null) {
                    response+=line;
                }
            }
            else {
                response="";    

            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return response;
    }

........

private String getPostDataString(HashMap<String, String> params) throws UnsupportedEncodingException{
        StringBuilder result = new StringBuilder();
        boolean first = true;
        for(Map.Entry<String, String> entry : params.entrySet()){
            if (first)
                first = false;
            else
                result.append("&");

            result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
            result.append("=");
            result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
        }

        return result.toString();
    }

Answer 3

使用 Volley 怎么样？与 URLConnection 相比，它似乎是一个非常好的选择。它在请求排队方面有很多好处。

已弃用 HTTP 类 Android 棒棒糖 5.1

Deprecated HTTP Classes Android lollipop 5.1

android

http-post