Android中OKHttp框架的使用

最新推荐文章于 2024-03-28 11:01:41 发布

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本文介绍了一个使用OkHttp实现的网络请求工具类，对比了使用OkHttp与Httpclient等传统方式的区别，提供了完整的示例代码，展示了如何通过OkHttp进行POST请求。

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//使用okhttp代替了 Httpclient，Httpuricotion，使用该框架请求网络，是谷歌推出的最新的一款技术，今天在这里展示

这是一个工具类，直接调用就可以了
这个请求，需要一个Jar包

package com.example.utils;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

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

import com.squareup.okhttp.FormEncodingBuilder;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;

public class HttpTool {
    protected static final String TAG = "HttpTool";
    // http://169.254.61.202:8080/MyPaoT/register
    private String result = null;

    public String doPost(final String url, final Map<String, String> map,
            final String charset) {

        new Thread() {

            public void run() {

                HttpClient httpClient = null;
                HttpPost httpPost = null;

                try {
                    httpClient = new DefaultHttpClient();
                    httpPost = new HttpPost(url);

                    List<NameValuePair> list = new ArrayList<NameValuePair>();
                    Iterator iterator = map.entrySet().iterator();
                    while (iterator.hasNext()) {
                        Entry<String, String> elem = (Entry<String, String>) iterator
                                .next();
                        list.add(new BasicNameValuePair(elem.getKey(), elem
                                .getValue()));
                    }
                    if (list.size() > 0) {
                        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(
                                list, charset);
                        httpPost.setEntity(entity);
                    }
                    HttpResponse response = httpClient.execute(httpPost);
                    if (response != null) {
                        HttpEntity resEntity = response.getEntity();
                        if (resEntity != null) {
                            result = EntityUtils.toString(resEntity, charset);
                            Log.i(TAG, "-HttpTool这里是 是否注册成功" + result);
                        }
                    }
                } catch (Exception ex) {
                    ex.printStackTrace();
                }

            };
        }.start();
        return result;
    }
 /**
  *     OKHttp
  * @param url
  * @param map
  * @return
  */
    public static String post(final String url, final Map<String, String> map) {
        OkHttpClient client = new OkHttpClient();

        FormEncodingBuilder formBody = new FormEncodingBuilder();
        Iterator it = map.entrySet().iterator();
        System.out.println(map.entrySet().size());
        String key;
        String value;
        while (it.hasNext()) {
            Map.Entry entry = (Map.Entry) it.next();
            key = entry.getKey().toString();
            value = entry.getValue().toString();
            formBody.add(key, value);

//          System.out.println(key + "====" + value);
            Log.i(TAG, "@@@@@");
        }
        Request request = new Request.Builder().url(url).post(formBody.build())
                .build();
        Log.i(TAG, request+"====request===");
        Response response = null;
        try {
            response = client.newCall(request).execute();
             Log.i(TAG, response+"====response===");
            String string = response.body().string();
             Log.i(TAG, string+"====string===");
            if (string!=null) {

                return string;

            }else{
                 Log.i(TAG, string+"=======");
            }



        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}