OkHttp

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package com.whr.okhttpclientmanager.okHttpClientManager;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Handler;import android.os.Looper;import android.widget.ImageView;import com.google.gson.Gson;import com.google.gson.internal.$Gson$Types;import com.squareup.okhttp.Call;import com.squareup.okhttp.Callback;import com.squareup.okhttp.FormEncodingBuilder;import com.squareup.okhttp.Headers;import com.squareup.okhttp.MediaType;import com.squareup.okhttp.MultipartBuilder;import com.squareup.okhttp.OkHttpClient;import com.squareup.okhttp.Request;import com.squareup.okhttp.RequestBody;import com.squareup.okhttp.Response;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.lang.reflect.ParameterizedType;import java.lang.reflect.Type;import java.net.CookieManager;import java.net.CookiePolicy;import java.net.FileNameMap;import java.net.URLConnection;import java.util.HashMap;import java.util.Map;import java.util.Set;/** * Created by wohongrong on 2016/8/12. */public class OkHttpClientManag {    private static OkHttpClientManag mInstance;    private OkHttpClient mOkHttpClient;    private Handler mDelivery;    private Gson mGson;    public static final String TAG = "OkHttpClientManager";    private OkHttpClientManag()    {        mOkHttpClient = new OkHttpClient();        //cookie enabled        mOkHttpClient.setCookieHandler(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER));        mDelivery = new Handler(Looper.getMainLooper());        mGson = new Gson();    }    public static OkHttpClientManag getInstance()    {        if (mInstance == null)        {            synchronized (OkHttpClientManag.class)            {                if (mInstance == null)                {                    mInstance = new OkHttpClientManag();                }            }        }        return mInstance;    }    /**     * 同步的Get请求     *     * @param url     * @return Response     */    private Response _getAsyn(String url) throws IOException    {        final Request request = new Request.Builder()                .url(url)                .build();        Call call = mOkHttpClient.newCall(request);        Response execute = call.execute();        return execute;    }    /**     * 同步的Get请求     *     * @param url     * @return 字符串     */    private String _getAsString(String url) throws IOException    {        Response execute = _getAsyn(url);        return execute.body().string();    }    /**     * 异步的get请求     *     * @param url     * @param callback     */    private void _getAsyn(String url, final ResultCallback callback)    {        final Request request = new Request.Builder()                .url(url)                .build();        deliveryResult(callback, request);    }    /**     * 同步的Post请求     *     * @param url     * @param params post的参数     * @return     */    private Response _post(String url, Param... params) throws IOException    {        Request request = buildPostRequest(url, params);        Response response = mOkHttpClient.newCall(request).execute();        return response;    }    /**     * 同步的Post请求     *     * @param url     * @param params post的参数     * @return 字符串     */    private String _postAsString(String url, Param... params) throws IOException    {        Response response = _post(url, params);        return response.body().string();    }    /**     * 异步的post请求     *     * @param url     * @param callback     * @param params     */    private void _postAsyn(String url, final ResultCallback callback, Param... params)    {        Request request = buildPostRequest(url, params);        deliveryResult(callback, request);    }    /**     * 异步的post请求     *     * @param url     * @param callback     * @param params     */    private void _postAsyn(String url, final ResultCallback callback, Map<String, String> params)    {        Param[] paramsArr = map2Params(params);        Request request = buildPostRequest(url, paramsArr);        deliveryResult(callback, request);    }    /**     * 同步基于post的文件上传     *     * @param params     * @return     */    private Response _post(String url, File[] files, String[] fileKeys, Param... params) throws IOException    {        Request request = buildMultipartFormRequest(url, files, fileKeys, params);        return mOkHttpClient.newCall(request).execute();    }    private Response _post(String url, File file, String fileKey) throws IOException    {        Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, null);        return mOkHttpClient.newCall(request).execute();    }    private Response _post(String url, File file, String fileKey, Param... params) throws IOException    {        Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, params);        return mOkHttpClient.newCall(request).execute();    }    /**     * 异步基于post的文件上传     *     * @param url     * @param callback     * @param files     * @param fileKeys     * @throws IOException     */    private void _postAsyn(String url, ResultCallback callback, File[] files, String[] fileKeys, Param... params) throws IOException    {        Request request = buildMultipartFormRequest(url, files, fileKeys, params);        deliveryResult(callback, request);    }    /**     * 异步基于post的文件上传，单文件不带参数上传     *     * @param url     * @param callback     * @param file     * @param fileKey     * @throws IOException     */    private void _postAsyn(String url, ResultCallback callback, File file, String fileKey) throws IOException    {        Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, null);        deliveryResult(callback, request);    }    /**     * 异步基于post的文件上传，单文件且携带其他form参数上传     *     * @param url     * @param callback     * @param file     * @param fileKey     * @param params     * @throws IOException     */    private void _postAsyn(String url, ResultCallback callback, File file, String fileKey, Param... params) throws IOException    {        Request request = buildMultipartFormRequest(url, new File[]{file}, new String[]{fileKey}, params);        deliveryResult(callback, request);    }    /**     * 异步下载文件     *     * @param url     * @param destFileDir 本地文件存储的文件夹     * @param callback     */    private void _downloadAsyn(final String url, final String destFileDir, final ResultCallback callback)    {        final Request request = new Request.Builder()                .url(url)                .build();        final Call call = mOkHttpClient.newCall(request);        call.enqueue(new Callback()        {            @Override            public void onFailure(final Request request, final IOException e)            {                sendFailedStringCallback(request, e, callback);            }            @Override            public void onResponse(Response response)            {                InputStream is = null;                byte[] buf = new byte[2048];                int len = 0;                FileOutputStream fos = null;                try                {                    is = response.body().byteStream();                    File file = new File(destFileDir, getFileName(url));                    fos = new FileOutputStream(file);                    while ((len = is.read(buf)) != -1)                    {                        fos.write(buf, 0, len);                    }                    fos.flush();                    //如果下载文件成功，第一个参数为文件的绝对路径                    sendSuccessResultCallback(file.getAbsolutePath(), callback);                } catch (IOException e)                {                    sendFailedStringCallback(response.request(), e, callback);                } finally                {                    try                    {                        if (is != null) is.close();                    } catch (IOException e)                    {                    }                    try                    {                        if (fos != null) fos.close();                    } catch (IOException e)                    {                    }                }            }        });    }    private String getFileName(String path)    {        int separatorIndex = path.lastIndexOf("/");        return (separatorIndex < 0) ? path : path.substring(separatorIndex + 1, path.length());    }    /**     * 加载图片     *     * @param view     * @param url     * @throws IOException     */    private void _displayImage(final ImageView view, final String url, final int errorResId)    {        final Request request = new Request.Builder()                .url(url)                .build();        Call call = mOkHttpClient.newCall(request);        call.enqueue(new Callback()        {            @Override            public void onFailure(Request request, IOException e)            {                setErrorResId(view, errorResId);            }            @Override            public void onResponse(Response response)            {                InputStream is = null;                try                {                    is = response.body().byteStream();                    ImageUtils.ImageSize actualImageSize = ImageUtils.getImageSize(is);                    ImageUtils.ImageSize imageViewSize = ImageUtils.getImageViewSize(view);                    int inSampleSize = ImageUtils.calculateInSampleSize(actualImageSize, imageViewSize);                    try                    {                        is.reset();                    } catch (IOException e)                    {                        response = _getAsyn(url);                        is = response.body().byteStream();                    }                    BitmapFactory.Options ops = new BitmapFactory.Options();                    ops.inJustDecodeBounds = false;                    ops.inSampleSize = inSampleSize;                    final Bitmap bm = BitmapFactory.decodeStream(is, null, ops);                    mDelivery.post(new Runnable()                    {                        @Override                        public void run()                        {                            view.setImageBitmap(bm);                        }                    });                } catch (Exception e)                {                    setErrorResId(view, errorResId);                } finally                {                    if (is != null) try                    {                        is.close();                    } catch (IOException e)                    {                        e.printStackTrace();                    }                }            }        });    }    private void setErrorResId(final ImageView view, final int errorResId)    {        mDelivery.post(new Runnable()        {            @Override            public void run()            {                view.setImageResource(errorResId);            }        });    }    //*************对外公布的方法************    public static Response getAsyn(String url) throws IOException    {        return getInstance()._getAsyn(url);    }    public static String getAsString(String url) throws IOException    {        return getInstance()._getAsString(url);    }    public static void getAsyn(String url, ResultCallback callback)    {        getInstance()._getAsyn(url, callback);    }    public static Response post(String url, Param... params) throws IOException    {        return getInstance()._post(url, params);    }    public static String postAsString(String url, Param... params) throws IOException    {        return getInstance()._postAsString(url, params);    }    public static void postAsyn(String url, final ResultCallback callback, Param... params)    {        getInstance()._postAsyn(url, callback, params);    }    public static void postAsyn(String url, final ResultCallback callback, Map<String, String> params)    {        getInstance()._postAsyn(url, callback, params);    }    public static Response post(String url, File[] files, String[] fileKeys, Param... params) throws IOException    {        return getInstance()._post(url, files, fileKeys, params);    }    public static Response post(String url, File file, String fileKey) throws IOException    {        return getInstance()._post(url, file, fileKey);    }    public static Response post(String url, File file, String fileKey, Param... params) throws IOException    {        return getInstance()._post(url, file, fileKey, params);    }    public static void postAsyn(String url, ResultCallback callback, File[] files, String[] fileKeys, Param... params) throws IOException    {        getInstance()._postAsyn(url, callback, files, fileKeys, params);    }    public static void postAsyn(String url, ResultCallback callback, File file, String fileKey) throws IOException    {        getInstance()._postAsyn(url, callback, file, fileKey);    }    public static void postAsyn(String url, ResultCallback callback, File file, String fileKey, Param... params) throws IOException    {        getInstance()._postAsyn(url, callback, file, fileKey, params);    }    public static void displayImage(final ImageView view, String url, int errorResId) throws IOException    {        getInstance()._displayImage(view, url, errorResId);    }    public static void displayImage(final ImageView view, String url)    {        getInstance()._displayImage(view, url, -1);    }    public static void downloadAsyn(String url, String destDir, ResultCallback callback)    {        getInstance()._downloadAsyn(url, destDir, callback);    }    //****************************    private Request buildMultipartFormRequest(String url, File[] files,                                              String[] fileKeys, Param[] params)    {        params = validateParam(params);        MultipartBuilder builder = new MultipartBuilder()                .type(MultipartBuilder.FORM);        for (Param param : params)        {            builder.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + param.key + "\""),                    RequestBody.create(null, param.value));        }        if (files != null)        {            RequestBody fileBody = null;            for (int i = 0; i < files.length; i++)            {                File file = files[i];                String fileName = file.getName();                fileBody = RequestBody.create(MediaType.parse(guessMimeType(fileName)), file);                //TODO 根据文件名设置contentType                builder.addPart(Headers.of("Content-Disposition",                        "form-data; name=\"" + fileKeys[i] + "\"; filename=\"" + fileName + "\""),                        fileBody);            }        }        RequestBody requestBody = builder.build();        return new Request.Builder()                .url(url)                .post(requestBody)                .build();    }    private String guessMimeType(String path)    {        FileNameMap fileNameMap = URLConnection.getFileNameMap();        String contentTypeFor = fileNameMap.getContentTypeFor(path);        if (contentTypeFor == null)        {            contentTypeFor = "application/octet-stream";        }        return contentTypeFor;    }    private Param[] validateParam(Param[] params)    {        if (params == null)            return new Param[0];        else return params;    }    private Param[] map2Params(Map<String, String> params)    {        if (params == null) return new Param[0];        int size = params.size();        Param[] res = new Param[size];        Set<Map.Entry<String, String>> entries = params.entrySet();        int i = 0;        for (Map.Entry<String, String> entry : entries)        {            res[i++] = new Param(entry.getKey(), entry.getValue());        }        return res;    }    private static final String SESSION_KEY = "Set-Cookie";    private static final String mSessionKey = "JSESSIONID";    private Map<String, String> mSessions = new HashMap<String, String>();    private void deliveryResult(final ResultCallback callback, Request request)    {        mOkHttpClient.newCall(request).enqueue(new Callback()        {            @Override            public void onFailure(final Request request, final IOException e)            {                sendFailedStringCallback(request, e, callback);            }            @Override            public void onResponse(final Response response)            {                try                {                    final String string = response.body().string();                    if (callback.mType == String.class)                    {                        sendSuccessResultCallback(string, callback);                    } else                    {                        Object o = mGson.fromJson(string, callback.mType);                        sendSuccessResultCallback(o, callback);                    }                } catch (IOException e)                {                    sendFailedStringCallback(response.request(), e, callback);                } catch (com.google.gson.JsonParseException e)//Json解析的错误                {                    sendFailedStringCallback(response.request(), e, callback);                }            }        });    }    private void sendFailedStringCallback(final Request request, final Exception e, final ResultCallback callback)    {        mDelivery.post(new Runnable()        {            @Override            public void run()            {                if (callback != null)                    callback.onError(request, e);            }        });    }    private void sendSuccessResultCallback(final Object object, final ResultCallback callback)    {        mDelivery.post(new Runnable()        {            @Override            public void run()            {                if (callback != null)                {                    callback.onResponse(object);                }            }        });    }    private Request buildPostRequest(String url, Param[] params)    {        if (params == null)        {            params = new Param[0];        }        FormEncodingBuilder builder = new FormEncodingBuilder();        for (Param param : params)        {            builder.add(param.key, param.value);        }        RequestBody requestBody = builder.build();        return new Request.Builder()                .url(url)                .post(requestBody)                .build();    }    public static abstract class ResultCallback<T>    {        Type mType;        public ResultCallback()        {            mType = getSuperclassTypeParameter(getClass());        }        static Type getSuperclassTypeParameter(Class<?> subclass)        {            Type superclass = subclass.getGenericSuperclass();            if (superclass instanceof Class)            {                throw new RuntimeException("Missing type parameter.");            }            ParameterizedType parameterized = (ParameterizedType) superclass;            return $Gson$Types.canonicalize(parameterized.getActualTypeArguments()[0]);        }        public abstract void onError(Request request, Exception e);        public abstract void onResponse(T response);    }    public static class Param    {        public Param()        {        }        public Param(String key, String value)        {            this.key = key;            this.value = value;        }        String key;        String value;    }}///////////////////////////////////////////////////////////////////////////////////////////package com.whr.okhttpclientmanager.okHttpClientManager;import android.graphics.BitmapFactory;import android.util.DisplayMetrics;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import java.io.InputStream;import java.lang.reflect.Field;/** * Created by zhy on 15/11/6. */public class ImageUtils{    /**     * 根据InputStream获取图片实际的宽度和高度     *     * @param imageStream     * @return     */    public static ImageSize getImageSize(InputStream imageStream)    {        BitmapFactory.Options options = new BitmapFactory.Options();        options.inJustDecodeBounds = true;        BitmapFactory.decodeStream(imageStream, null, options);        return new ImageSize(options.outWidth, options.outHeight);    }    public static class ImageSize    {        int width;        int height;        public ImageSize()        {        }        public ImageSize(int width, int height)        {            this.width = width;            this.height = height;        }        @Override        public String toString()        {            return "ImageSize{" +                    "width=" + width +                    ", height=" + height +                    '}';        }    }    public static int calculateInSampleSize(ImageSize srcSize, ImageSize targetSize)    {        // 源图片的宽度        int width = srcSize.width;        int height = srcSize.height;        int inSampleSize = 1;        int reqWidth = targetSize.width;        int reqHeight = targetSize.height;        if (width > reqWidth && height > reqHeight)        {            // 计算出实际宽度和目标宽度的比率            int widthRatio = Math.round((float) width / (float) reqWidth);            int heightRatio = Math.round((float) height / (float) reqHeight);            inSampleSize = Math.max(widthRatio, heightRatio);        }        return inSampleSize;    }    /**     * 根据ImageView获适当的压缩的宽和高     *     * @param view     * @return     */    public static ImageSize getImageViewSize(View view)    {        ImageSize imageSize = new ImageSize();        imageSize.width = getExpectWidth(view);        imageSize.height = getExpectHeight(view);        return imageSize;    }    /**     * 根据view获得期望的高度     *     * @param view     * @return     */    private static int getExpectHeight(View view)    {        int height = 0;        if (view == null) return 0;        final ViewGroup.LayoutParams params = view.getLayoutParams();        //如果是WRAP_CONTENT，此时图片还没加载，getWidth根本无效        if (params != null && params.height != ViewGroup.LayoutParams.WRAP_CONTENT)        {            height = view.getWidth(); // 获得实际的宽度        }        if (height <= 0 && params != null)        {            height = params.height; // 获得布局文件中的声明的宽度        }        if (height <= 0)        {            height = getImageViewFieldValue(view, "mMaxHeight");// 获得设置的最大的宽度        }        //如果宽度还是没有获取到，憋大招，使用屏幕的宽度        if (height <= 0)        {            DisplayMetrics displayMetrics = view.getContext().getResources()                    .getDisplayMetrics();            height = displayMetrics.heightPixels;        }        return height;    }    /**     * 根据view获得期望的宽度     *     * @param view     * @return     */    private static int getExpectWidth(View view)    {        int width = 0;        if (view == null) return 0;        final ViewGroup.LayoutParams params = view.getLayoutParams();        //如果是WRAP_CONTENT，此时图片还没加载，getWidth根本无效        if (params != null && params.width != ViewGroup.LayoutParams.WRAP_CONTENT)        {            width = view.getWidth(); // 获得实际的宽度        }        if (width <= 0 && params != null)        {            width = params.width; // 获得布局文件中的声明的宽度        }        if (width <= 0)        {            width = getImageViewFieldValue(view, "mMaxWidth");// 获得设置的最大的宽度        }        //如果宽度还是没有获取到，憋大招，使用屏幕的宽度        if (width <= 0)        {            DisplayMetrics displayMetrics = view.getContext().getResources()                    .getDisplayMetrics();            width = displayMetrics.widthPixels;        }        return width;    }    /**     * 通过反射获取imageview的某个属性值     *     * @param object     * @param fieldName     * @return     */    private static int getImageViewFieldValue(Object object, String fieldName)    {        int value = 0;        try        {            Field field = ImageView.class.getDeclaredField(fieldName);            field.setAccessible(true);            int fieldValue = field.getInt(object);            if (fieldValue > 0 && fieldValue < Integer.MAX_VALUE)            {                value = fieldValue;            }        } catch (Exception e)        {        }        return value;    }}
/////////////////////////////////////////////////////////////////////////
//封装
    OkHttpClientManag.getAsyn("http://m.yunifang.com/yunifang/mobile/goods/getall?random=9949&encode=6c2154232994e7d36ad461e3caa68ca7", new OkHttpClientManag.ResultCallback<Bean>()    {        private List<MyData> list;        @Override        public void onError(Request request, Exception e)        {            e.printStackTrace();        }        @Override        public void onResponse(Bean response) {            list =response.data;              text_id.setText(list.get(0).goods_name);//解析图片 OkHttpClientManag.displayImage(image, "http://images.csdn.net/20150817/1.jpg");        }    });}
//需要导入两个包
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