基於Okhttp3的簡單封裝，Bean，String數據返回

1.導入Jar包

okhttp-3.4.2.jar

okio-1.11.0.jar

gson-2.8.0.jar（建議使用Gson實例化Bean）

JAR包下載地址：http://download.csdn.net/detail/tongzhenggang/9688430

2.使用方法，隨便寫個例子，大家自行調用，封裝方法類

Handler mHandler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                super.handleMessage(msg);
                if (msg.what == 0) {// 請求成功
                    ToastUtil.show(mContext,msg.obj.toString());

                } else {
                    ToastUtil.show(mContext, msg.obj.toString());
                }

            }
        };
        OkHttp3ClientManager.getInstance().getStringExecute(DownloadUrl,null,mHandler);

3.OkHttp3ClientManager.java

package tool;

import android.os.Handler;
import android.os.Message;
import android.util.Log;

import com.google.gson.Gson;

import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.TimeUnit;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

/**
 * OkHttpClient封裝,基於Okhttp-3.4.2,Okio-1.11.0 封裝
 *
 * Created by [email protected]
 */
public class OkHttp3ClientManager {

    private String TAG = this.getClass().getName();
    private static OkHttp3ClientManager mInstance;
    private OkHttpClient mOkHttpClient;

    private OkHttp3ClientManager() {
        mOkHttpClient = new OkHttpClient.Builder().readTimeout(30, TimeUnit.SECONDS) // 讀取超時
                .connectTimeout(10, TimeUnit.SECONDS) // 連接超時
                .writeTimeout(60, TimeUnit.SECONDS) // 寫入超時
                .build();
    }

    public static OkHttp3ClientManager getInstance() {
        if (mInstance == null) {
            synchronized (OkHttp3ClientManager.class) {
                if (mInstance == null) {
                    mInstance = new OkHttp3ClientManager();
                }
            }
        }
        return mInstance;
    }

    /**
     * post請求參數
     *
     * @param BodyParams
     * @return
     */
    private RequestBody SetRequestBody(Map<String, Object> BodyParams) {
        RequestBody body = null;
        // 創建請求的參數body
        FormBody.Builder builder = new FormBody.Builder();

        // 遍歷key
        if (null != BodyParams) {
            for (Map.Entry<String, Object> entry : BodyParams.entrySet()) {

                System.out.println("Key = " + entry.getKey() + ", Value = " + entry.getValue());

                builder.add(entry.getKey(), entry.getValue().toString());

            }
        }

        body = builder.build();
        return body;
    }


    /**
     * get方法連接拼加參數
     *
     * @param mapParams
     * @return
     */
    private String setUrlParams(Map<String, Object> mapParams) {
        String strParams = "";
        if (mapParams != null) {
            Iterator<String> iterator = mapParams.keySet().iterator();
            String key = "";
            while (iterator.hasNext()) {
                key = iterator.next().toString();
                strParams += "&" + key + "=" + mapParams.get(key);
            }
        }

        return strParams;
    }

    /**
     * POST方法獲取實體bean
     *
     * @param reqUrl
     * @param map
     * @param mHandler
     * @param rspClass
     */
    public void postBeanExecute(String reqUrl, Map<String, Object> map, final Handler mHandler,
                                final Class<?> rspClass) {
        RequestBody body = SetRequestBody(map);
        Request request = new Request.Builder().url(reqUrl).post(body).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {

            @Override
            public void onResponse(Call arg0, Response arg1) throws IOException {
                String Result = arg1.body().string();
//          Result = PUB.decodeBase64(Result);
                Log.d(TAG, "[postBeanExecute]Call===" + arg1.code() + "Response===" + Result);

                Message mess = mHandler.obtainMessage();
                if (arg1.code() == 200) {
                    try {
                        // 轉換返回結果信息給BEAN
                        mess.obj = new Gson().fromJson(Result, rspClass);
                    } catch (Exception e) {
                        mess.what = 404;
                        mess.obj = "HTTP數據異常-0002";
                    }
                } else {
                    mess.what = arg1.code();
                    mess.obj = "HTTP狀態異常-" + arg1.code();
                }
                mHandler.sendMessage(mess);
            }

            @Override
            public void onFailure(Call arg0, IOException arg1) {
                Log.d(TAG, "[onFailure]Call===" + arg0 + "IOException===" + arg1.toString());

                Message mess = mHandler.obtainMessage();
                mess.what = 404;
                mess.obj = "HTTP通訊錯誤-0001";
                mHandler.sendMessage(mess);
            }
        });
    }

    /**
     * Get方法獲取實體bean
     *
     * @param reqUrl
     * @param map
     * @param mHandler
     * @param rspClass
     */
    public void getBeanExecute(String reqUrl, Map<String, Object> map, final Handler mHandler,
                               final Class<?> rspClass) {
        String UrlParams = setUrlParams(map);
        String URL = reqUrl + "?" + UrlParams;
        Log.d(TAG, "[getBeanExecute]URL===" + URL);

        Request request = new Request.Builder().url(URL).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {

            @Override
            public void onResponse(Call arg0, Response arg1) throws IOException {
                String Result = arg1.body().string();
//          Result = PUB.decodeBase64(Result);
                Log.d(TAG, "[onResponse]Call===" + arg1.code() + "Response===" + Result);

                Message mess = mHandler.obtainMessage();
                if (arg1.code() == 200) {
                    try {
                        // 轉換返回結果信息給BEAN
                        mess.obj = new Gson().fromJson(Result, rspClass);
                    } catch (Exception e) {
                        mess.what = 404;
                        mess.obj = "HTTP數據異常-0002";
                    }
                } else {
                    mess.what = arg1.code();
                    mess.obj = "HTTP狀態異常-" + arg1.code();
                }
                mHandler.sendMessage(mess);
            }

            @Override
            public void onFailure(Call arg0, IOException arg1) {
                Log.d(TAG, "[onFailure]Call===" + arg0 + "IOException===" + arg1.toString());

                Message mess = mHandler.obtainMessage();
                mess.what = 404;
                mess.obj = "HTTP通訊錯誤-0001";
                mHandler.sendMessage(mess);
            }
        });
    }


    /**
     * Post 獲取String數據
     *
     * @param reqUrl
     * @param mHandler
     */
    public void postStringExecute(String reqUrl, Map<String, Object> map, final Handler mHandler) {
        RequestBody body = SetRequestBody(map);
        Request request = new Request.Builder().url(reqUrl).post(body).build();
        Log.d(TAG, "[postStringExecute]URL===" + reqUrl);

        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {

            @Override
            public void onResponse(Call arg0, Response arg1) throws IOException {
                String Result = arg1.body().string();
//          Result = PUB.decodeBase64(Result);
                Log.d(TAG, "[onResponse]Call===" + arg1.code() + "Response===" + Result);

                Message mess = mHandler.obtainMessage();
                if (arg1.code() == 200) {
                    try {
                        // 轉換返回結果信息給BEAN
                        mess.obj = Result;
                    } catch (Exception e) {
                        mess.what = 404;
                        mess.obj = "HTTP數據異常-0002";
                    }
                } else {
                    mess.what = arg1.code();
                    mess.obj = "HTTP狀態異常-" + arg1.code();
                }
                mHandler.sendMessage(mess);
            }

            @Override
            public void onFailure(Call arg0, IOException arg1) {
                Log.d(TAG, "[onFailure]Call===" + arg0 + "IOException===" + arg1.toString());

                Message mess = mHandler.obtainMessage();
                mess.what = 404;
                mess.obj = "HTTP通訊錯誤-0001";
                mHandler.sendMessage(mess);
            }
        });
    }


    /**
     * Get 獲取String數據
     *
     * @param reqUrl
     * @param mHandler
     */
    public void getStringExecute(String reqUrl, Map<String, Object> map, final Handler mHandler) {
        String UrlParams = setUrlParams(map);
        String URL = reqUrl + "?" + UrlParams;
        Log.d(TAG, "[getBeanExecute]URL===" + URL);

        Request request = new Request.Builder().url(URL).build();
        Call call = mOkHttpClient.newCall(request);
        call.enqueue(new Callback() {

            @Override
            public void onResponse(Call arg0, Response arg1) throws IOException {
                String Result = arg1.body().string();
//          Result = PUB.decodeBase64(Result);
                Log.d(TAG, "[onResponse]Call===" + arg1.code() + "Response===" + Result);

                Message mess = mHandler.obtainMessage();
                if (arg1.code() == 200) {
                    try {
                        // 轉換返回結果信息給BEAN
                        mess.obj = Result;
                    } catch (Exception e) {
                        mess.what = 404;
                        mess.obj = "HTTP數據異常-0002";
                    }
                } else {
                    mess.what = arg1.code();
                    mess.obj = "HTTP狀態異常-" + arg1.code();
                }
                mHandler.sendMessage(mess);
            }

            @Override
            public void onFailure(Call arg0, IOException arg1) {
                Log.d(TAG, "[onFailure]Call===" + arg0 + "IOException===" + arg1.toString());

                Message mess = mHandler.obtainMessage();
                mess.what = 404;
                mess.obj = "HTTP通訊錯誤-0001";
                mHandler.sendMessage(mess);
            }
        });
    }
}