okhttp框架 工具类

package com.lt.okhttpfirst.helper;import android.content.Context;import com.squareup.okhttp.Cache;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 com.squareup.okhttp.ResponseBody;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.net.CookieManager;import java.net.CookiePolicy;import java.net.FileNameMap;import java.net.URLConnection;import java.util.Map;import java.util.concurrent.TimeUnit;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.SSLSession;/** * Created by 风情万种冷哥哥 on 2016/10/17. */public class OkHttpClientHelper {    private static OkHttpClient mOkHttpClient = null;    private static OkHttpClientHelper mOkHttpUtils = null;    private OkHttpClientHelper(Context context) {        mOkHttpClient = getOkHttpSingletonInstance();        //开启响应缓存        mOkHttpClient.setCookieHandler(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER));        //设置缓存目录和大小        int cacheSize = 10 << 20; // 10 MiB        Cache cache = new Cache(context.getCacheDir(), cacheSize);        mOkHttpClient.setCache(cache);        //设置合理的超时        mOkHttpClient.setConnectTimeout(15, TimeUnit.SECONDS);        mOkHttpClient.setReadTimeout(20, TimeUnit.SECONDS);        mOkHttpClient.setWriteTimeout(20, TimeUnit.SECONDS);        //以下验证不设置，那么默认就已经设置了验证        mOkHttpClient.setHostnameVerifier(new HostnameVerifier() {            @Override            public boolean verify(String hostname, SSLSession session) {                return true;            }        });    }    public static OkHttpClientHelper getOkHttpClientUtils(Context context) {        if (mOkHttpUtils == null) {            synchronized (OkHttpClientHelper.class) {                if (mOkHttpUtils == null) {                    mOkHttpUtils = new OkHttpClientHelper(context);                }            }        }        return mOkHttpUtils;    }    public static OkHttpClient getOkHttpSingletonInstance() {        if (mOkHttpClient == null) {            synchronized (OkHttpClient.class) {                mOkHttpClient = new OkHttpClient();            }        }        return mOkHttpClient;    }    ///////////////////////////////////////////////////////////////////////////    // GET方式网络访问    ///////////////////////////////////////////////////////////////////////////    /**     * 基方法，返回Request对象     *     * @param urlString     * @param tag     * @return     */    private Request buildGetRequest(String urlString, Object tag) {        Request.Builder builder = new Request.Builder();        builder.url(urlString);        if (tag != null) {            builder.tag(tag);        }        return builder.build();    }    /**     * 自定义方法，返回Response对象     *     * @param urlString     * @return     * @throws IOException     */    private Response buildResponse(String urlString, Object tag) throws IOException {        Request request = buildGetRequest(urlString, tag);        Response response = mOkHttpClient.newCall(request).execute();        return response;    }    //基础方法，返回ResponseBody对象    private ResponseBody buildResponseBody(String urlString, Object tag) throws IOException {        Response response = buildResponse(urlString, tag);        if (response.isSuccessful()) {            return response.body();        }        return null;    }    /**     * 作用：实现网络访问文件，将获取到数据储存在文件流中     *     * @param urlString ：访问网络的url地址     * @return InputStream     */    public static InputStream getStreamFromURL(Context context, String urlString, Object tag)            throws IOException {        ResponseBody body = getOkHttpClientUtils(context).buildResponseBody(urlString, tag);        if (body != null) {            return body.byteStream();        }        return null;    }    /**     * 作用：实现网络访问文件，将获取到的数据存在字节数组中     *     * @param urlString ：访问网络的url地址     * @return byte[]     */    public static byte[] getBytesFromURL(Context context, String urlString, Object tag) throws            IOException {        ResponseBody body = getOkHttpClientUtils(context).buildResponseBody(urlString, tag);        if (body != null) {            return body.bytes();        }        return null;    }    /**     * 作用：实现网络访问文件，将获取到的数据存在字符串中     *     * @param urlString ：访问网络的url地址     * @return String     */    public static String getStringFromURL(Context context, String urlString, Object tag) throws            IOException {        ResponseBody body = getOkHttpClientUtils(context).buildResponseBody(urlString, tag);        if (body != null) {            return body.string();        }        return null;    }    ///////////////////////////////////////////////////////////////////////////    // POST方式访问网络    ///////////////////////////////////////////////////////////////////////////    /**     * 基方法，返回Request对象     *     * @param urlString     * @param tag     * @return     */    private Request buildPostRequest(String urlString, RequestBody requestBody, Object tag) {        Request.Builder builder = new Request.Builder();        builder.url(urlString).post(requestBody);        //builder.addHeader("Accept", "application/json; q=0.5");        if (tag != null) {            builder.tag(tag);        }        return builder.build();    }    /**     * 作用：post提交数据，返回服务器端返回的字节数组     *     * @param urlString ：访问网络的url地址     * @return byte[]     */    private String postRequestBody(String urlString, RequestBody requestBody, Object tag) {        Request request = buildPostRequest(urlString, requestBody, tag);        try {            Response response = mOkHttpClient.newCall(request).execute();            if (response.isSuccessful()) {                return response.body().string();            }        } catch (Exception e) {            e.printStackTrace();        }        return null;    }    /**     * 作用：POST提交键值对，再返回相应的数据     *     * @param urlString ：访问网络的url地址     * @param map       ：访问url时，需要传递给服务器的键值对数据。     * @return String     */    public static String postKeyValuePair(Context context, String urlString, Map<String, String>            map, Object tag) {        //往FormEncodingBuilder对象中放置键值对        FormEncodingBuilder formBuilder = new FormEncodingBuilder();        if (map != null && !map.isEmpty()) {            for (Map.Entry<String, String> entry : map.entrySet()) {                formBuilder.add(entry.getKey(), entry.getValue());            }        }        //生成请求体对象        RequestBody requestBody = formBuilder.build();        //将请求提放置到请求对象中        return getOkHttpClientUtils(context).postRequestBody(urlString, requestBody, tag);    }    /**     * 作用：POST提交Json字符串，再返回相应的数据     *     * @param urlString  ：访问网络的url地址     * @param jsonString ：访问url时，需要传递给服务器的json字符串     * @return byte[]     */    public static String postJsonString(Context context, String urlString, String jsonString,                                        Object tag) {        //定义mimetype对象        /*String MEDIA_TYPE_STREAM = "application/octet-stream;charset=utf-8";        String MEDIA_TYPE_STRING = "text/plain;charset=utf-8";*/        String MEDIA_TYPE_JSON = "application/json;charset=utf-8";        MediaType JSON = MediaType.parse(MEDIA_TYPE_JSON);        RequestBody requestBody = RequestBody.create(JSON, jsonString);        return getOkHttpClientUtils(context).postRequestBody(urlString, requestBody, tag);    }    ///////////////////////////////////////////////////////////////////////////    // 异步网络访问    ///////////////////////////////////////////////////////////////////////////    /**     * 开启异步线程访问网络，通过回调方法实现数据加载     * 如果第二个参数为null，空callback， 则说明不在意返回结果     *     * @param urlString     * @param callback     */    public static void getDataAsync(Context context, String urlString, Callback callback, Object            tag) {        Request request = getOkHttpClientUtils(context).buildGetRequest(urlString, tag);        getOkHttpSingletonInstance().newCall(request).enqueue(callback);    }    /**     * 作用：post提交数据，返回服务器端返回的字节数组     *     * @param urlString ：访问网络的url地址     */    private void postRequestBodyAsync(String urlString, RequestBody requestBody, Callback            callback, Object tag) {        Request request = buildPostRequest(urlString, requestBody, tag);        if (callback == null) {            new Callback() {                @Override                public void onFailure(Request request, IOException e) {                }                @Override                public void onResponse(Response response) throws IOException {                }            };        }        mOkHttpClient.newCall(request).enqueue(callback);    }    /**     * 作用：POST提交键值对，再返回相应的数据     *     * @param urlString ：访问网络的url地址     * @param map       ：访问url时，需要传递给服务器的键值对数据。     */    public static void postKeyValuePairAsync(Context context, String urlString, Map<String,            String> map, Callback callback, Object tag) {        //往FormEncodingBuilder对象中放置键值对        FormEncodingBuilder formBuilder = new FormEncodingBuilder();        if (map != null && !map.isEmpty()) {            for (Map.Entry<String, String> entry : map.entrySet()) {                formBuilder.add(entry.getKey(), entry.getValue());            }        }        //生成请求体对象        RequestBody requestBody = formBuilder.build();        //将请求提放置到请求对象中        getOkHttpClientUtils(context).postRequestBodyAsync(urlString, requestBody, callback, tag);    }    /**     * 作用：post异步上传文件，提交分块请求     *     * @param urlString     网络地址     * @param map           提交给服务器的表单信息键值对     * @param files         提交的文件     * @param formFieldName 每个需要提交的文件对应的文件input的name值     * @param callback      异步上传回调方法     * @throws IOException     */    public static void postUploadFilesAsync(Context context, String urlString, Map<String,            String> map, File[] files, String[] formFieldName, Callback callback, Object tag)            throws IOException {        RequestBody requestBody = getOkHttpClientUtils(context).buildRequestBody(map, files,                formFieldName);        getOkHttpClientUtils(context).postRequestBodyAsync(urlString, requestBody, callback, tag);    }    ///////////////////////////////////////////////////////////////////////////    // POST方式提交分块请求，实现文件上传    ///////////////////////////////////////////////////////////////////////////    /**     * 同步基于post的文件上传:上传多个文件以及携带key-value对：主方法     *     * @param urlString     * @param formFiledName     * @param files     * @param map     * @param tag     * @return String     * @throws IOException     */    public static String postUploadFiles(Context context, String urlString, Map<String, String>            map, File[] files, String[] formFiledName, Object tag) throws IOException {        RequestBody requestBody = getOkHttpClientUtils(context).buildRequestBody(map, files,                formFiledName);        return getOkHttpClientUtils(context).postRequestBody(urlString, requestBody, tag);    }    /**     * 创建post上传附件的request对象     * Post方式提交分块请求——上传文件及其它表单数据     *     * @param files     * @param formFiledName     * @param map     * @return     */    private RequestBody buildRequestBody(Map<String, String> map, File[] files, String[]            formFiledName) {        MultipartBuilder builder = new MultipartBuilder().type(MultipartBuilder.FORM);        //往MultipartBuilder对象中添加普通input控件的内容        if (map != null) {            for (Map.Entry<String, String> entry : map.entrySet()) {                //添加普通input块的数据                builder.addPart(Headers.of("Content-Disposition", "form-data; name=\"" + entry                                .getKey() + "\""),                        RequestBody.create(null, entry.getValue()));            }        }        //往MultipartBuilder对象中添加file input控件的内容        if (files != null && formFiledName != null) {            for (int i = 0; i < files.length; i++) {                File file = files[i];                String fileName = file.getName();                RequestBody requestBody = RequestBody.create(MediaType.parse                        ("multipart/form-data"), file);                //添加file input块的数据                builder.addPart(Headers.of("Content-Disposition",                        "form-data; name=\"" + formFiledName[i] + "\"; filename=\"" + fileName +                                "\""), requestBody);            }        }        //生成RequestBody对象        return builder.build();    }    /**     * 获取Mime类型     *     * @param filename     * @return     */    private static String getMimeType(String filename) {        FileNameMap fileNameMap = URLConnection.getFileNameMap();        String contentTypeFor = fileNameMap.getContentTypeFor(filename);        if (contentTypeFor == null) {            contentTypeFor = "application/octet-stream";        }        return contentTypeFor;    }    public static void cancelCall(Object tag) {        getOkHttpSingletonInstance().cancel(tag);    }}