在我的JSON解析器中處理不推薦使用的類DefaultHttpClient

Question

Thi是我的JSON解析器類，其中我使用了DefaultHttpClient。我是這個android項目開發的新手，它顯示，DefaultHttpClient已被棄用，並且我在類中的用法被嚴重破壞。請幫助我使用不同的JSON解析器類作爲解決方案，作爲此棄用類的替代方案。

import android.util.Log; 

    import org.apache.http.HttpEntity; 
    import org.apache.http.HttpResponse; 
    import org.apache.http.NameValuePair; 
    import org.apache.http.client.ClientProtocolException; 
    import org.apache.http.client.HttpClient; 
    import org.apache.http.client.entity.UrlEncodedFormEntity; 
    import org.apache.http.client.methods.HttpGet; 
    import org.apache.http.client.methods.HttpPost; 
    import org.apache.http.client.utils.URLEncodedUtils; 
    import org.apache.http.impl.client.DefaultHttpClient; 
    import org.json.JSONArray; 
    import org.json.JSONException; 
    import org.json.JSONObject; 

    import java.io.BufferedReader; 
    import java.io.IOException; 
    import java.io.InputStream; 
    import java.io.InputStreamReader; 
    import java.io.UnsupportedEncodingException; 
    import java.util.ArrayList; 

    public class JSONParser { 


static InputStream is = null; 
static JSONObject jObj = null; 
static JSONArray jArr = null; 
static String json = ""; 
static String error = ""; 

// constructor 
public JSONParser() { 

} 

// function get json from url 
// by making HTTP POST or GET mehtod 
public JSONObject makeHttpRequest(String url, String method, 
            ArrayList<NameValuePair> params) { 

    // Making HTTP request 
    try { 

     // check for request method 
     if(method.equals("POST")){ 
      // request method is POST 
      // defaultHttpClient 
      HttpClient httpClient = new DefaultHttpClient(); 
      HttpPost httpPost = new HttpPost(url); 
      httpPost.setEntity(new UrlEncodedFormEntity(params)); 
      try { 
       Log.e("API123", " " +convertStreamToString(httpPost.getEntity().getContent())); 
       Log.e("API123",httpPost.getURI().toString()); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 

      HttpResponse httpResponse = httpClient.execute(httpPost); 
      Log.e("API123",""+httpResponse.getStatusLine().getStatusCode()); 
      error= String.valueOf(httpResponse.getStatusLine().getStatusCode()); 
      HttpEntity httpEntity = httpResponse.getEntity(); 
      is = httpEntity.getContent(); 

     }else if(method.equals("GET")){ 
      // request method is GET 
      DefaultHttpClient httpClient = new DefaultHttpClient(); 
      String paramString = URLEncodedUtils.format(params, "utf-8"); 
      url += "?" + paramString; 
      HttpGet httpGet = new HttpGet(url); 

      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(); 
    } 

    try { 
     BufferedReader reader = new BufferedReader(new InputStreamReader(
       is, "iso-8859-1"), 8); 
     StringBuilder sb = new StringBuilder(); 
     String line = null; 
     while ((line = reader.readLine()) != null) { 
      sb.append(line + "\n"); 
     } 
     is.close(); 
     json = sb.toString(); 
     Log.d("API123",json); 
    } catch (Exception e) { 
     Log.e("Buffer Error", "Error converting result " + e.toString()); 
    } 

    // try parse the string to a JSON object 
    try { 
     jObj = new JSONObject(json); 
     jObj.put("error_code",error); 
    } catch (JSONException e) { 
     Log.e("JSON Parser", "Error parsing data " + e.toString()); 
    } 

    // return JSON String 
    return jObj; 

} 

private String convertStreamToString(InputStream is) throws Exception { 
    BufferedReader reader = new BufferedReader(new InputStreamReader(is)); 
    StringBuilder sb = new StringBuilder(); 
    String line = null; 
    while ((line = reader.readLine()) != null) { 
     sb.append(line); 
    } 
    is.close(); 
    return sb.toString(); 
} 
} 

我是這個Android應用程序開發的新手。

Answer 1

考慮使用Retrofit或Volley Android的網絡庫。按照鏈接瞭解如何配置和使用它們中的任何一個。