不推荐使用DefaultHttpClient [英] DefaultHttpClient deprecated

问题描述

我花了很多时间在本教程上:

I had spend a lot of my time following this tutorial: http://www.mybringback.com/android-sdk/13239/android-mysql-php-json-part-6-json-parsing-and-android-design/

但是后来我意识到DefaultHttpClient和namevaluepair一起被弃用了.

but then i realized that DefaultHttpClient along with namevaluepair is depreciated..

我想知道是否可以找到此代码的替代方法.

i was wondering if i can find an alternative to this code.

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

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.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.JSONException;
import org.json.JSONObject;

import android.content.ContentValues;
import android.util.Log;
import android.widget.Toast;

public class JSONParser {

    static InputStream is = null;
    static JSONObject jObj = null;
    static String json = "";

    // constructor
    public JSONParser() {

    }

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

        // Making HTTP request
        try {

            // check for request method
            if(method == "POST"){
                // request method is POST
                // defaultHttpClient
                DefaultHttpClient httpClient = new DefaultHttpClient();
                HttpPost httpPost = new HttpPost(url);
                httpPost.setEntity(new UrlEncodedFormEntity(params));

                HttpResponse httpResponse = httpClient.execute(httpPost);
                HttpEntity httpEntity = httpResponse.getEntity();
                is = httpEntity.getContent();

            }
            else if(method == "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.e("JSON Parser", sb.toString());

        } 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);
        } catch (JSONException e) {
            Log.e("JSON Parser", "Error parsing data " + e.toString());
        }

        // return JSON String
        return jObj;

    }
}

推荐答案

您正在做的事情已成为过去.转到Google自己的排球库进行网络通话.这非常容易，您不再需要AsyncTask.

What you are doing is the thing of the past. Move on to google's own volley library to make network calls. It is super easy and you do not require AsyncTask anymore.

只需从此处下载该库，然后将其作为模块导入您的项目中即可.很简单.

Just download the library from here and then import it as a module in your project. Simple.

注意:该库中还有一个GsonRequest类，它将使用您获取的数据来设置模型类.您甚至不必进行任何解析，因此可以节省大量时间.

Note: there is also a GsonRequest class in this library and it will set your model class with the data that you are getting. You do not even have to any parsing, so it saves a lot of time.

这篇关于不推荐使用DefaultHttpClient的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！