OkHttp使用Get和Post访问服务器的工具类（一）

public  interface  HttpCallbackListener {
    void onFinish(String response);

    void onError(Exception e);
}

import android.util.Log;

import com.squareup.okhttp.Callback;
import com.squareup.okhttp.MediaType;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;

import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Map;

/**
 * Created by liang on 2016/8/15.
 */
public class OkHttpUtil {
    public static final MediaType JSON= MediaType.parse("application/json; charset=utf-8");

    public static void sendHttpRequestForGet(final String path, final Map<String, String> params, final HttpCallbackListener listener) {

        new Thread(new Runnable() {
            @Override
            public void run() {
                OkHttpClient okHttpClient = new OkHttpClient();
                try {
                    final  StringBuilder response_builder = new StringBuilder();
                    final StringBuilder stringBuilder = new StringBuilder();
                    stringBuilder.append(path).append("?");
                    if (params != null && params.size() != 0) {
                        for (Map.Entry<String, String> entry : params.entrySet()) {
                            //转换成UTF-8
                            stringBuilder.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "utf-8"));
                            stringBuilder.append("&");
                        }
                        //删除最后一个字符&
                        stringBuilder.deleteCharAt(stringBuilder.length() - 1);
                    }
                    //此时网址变长了，增加了Map中的内容
                    URL url = new URL(stringBuilder.toString());
                    Request request = new Request.Builder().url(url).build();

                    //必须要有实例化过后的对象！！！
                    okHttpClient.newCall(request).enqueue(new Callback() {
                        @Override
                        public void onFailure(Request request, IOException e) {

                        }
                        //通过response可以得到code，message，url等信息
                        @Override
                        public void onResponse(Response response) throws IOException {
                            //读取返回的数据
                            InputStream in = response.body().byteStream();
                            BufferedReader reader = new BufferedReader(new InputStreamReader(in, "utf-8"));
                            String line;
                            while ((line = reader.readLine()) != null) {
                                response_builder.append(line);
                            }
                            Log.e("OkHttpUtil", response.toString());
                            //将数据传进MainActivity
                            if (listener != null) {
                                listener.onFinish(response_builder.toString());
                            }
                        }
                    });

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

    public static void sendHttpRequestForPost(final String path, final Map<String, String> paramsValue, final HttpCallbackListener listener){
        new Thread(new Runnable() {
            @Override
            public void run() {
                OkHttpClient okHttpClient = new OkHttpClient();
                try{
                    final  StringBuilder response_builder = new StringBuilder();
                    JSONObject jsonObject = new JSONObject();
                    for(Map.Entry<String,String> entry:paramsValue.entrySet()){
                        jsonObject.put(entry.getKey(),entry.getValue());
                    }
                    //请求的主体
                    RequestBody requestBody=RequestBody.create(JSON,jsonObject.toString());
                    Request request=new Request.Builder().url(path).post(requestBody).build();
                    //使用异步的方法
                    okHttpClient.newCall(request).enqueue(new Callback() {
                        @Override
                        public void onFailure(Request request, IOException e) {
                            Log.e("OkHttpUtil","response fail");
                        }

                        @Override
                        public void onResponse(Response response) throws IOException {
                            //读取返回的数据
                            InputStream in = response.body().byteStream();
                            BufferedReader reader = new BufferedReader(new InputStreamReader(in, "utf-8"));
                            String line;
                            while ((line = reader.readLine()) != null) {
                                response_builder.append(line);
                            }
                            Log.e("OkHttpUtil", response.toString());

                            if (listener != null) {
                                listener.onFinish(response_builder.toString());
                            }
                        }
                    });

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

}