Okhttp二次封装

来源：互联网发布：2016江西统计局数据编辑：程序博客网时间：2024/06/03 01:42

    //Okhttp依赖    compile 'com.squareup.okio:okio:1.5.0'    compile 'com.squareup.okhttp3:okhttp:3.2.0'    //拦截器    compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'

//和上一次的对比主要更新了文件上传   并且保存了第一次上传文件的方法  新增网络拦//截器  public class OkHttp3Utils {    private static OkHttpClient okHttpClient = null;    public OkHttp3Utils() {    }    //通过单例模式获取实例    public static OkHttpClient getInstance() {        if (okHttpClient == null) {            //同步代码            synchronized (OkHttp3Utils.class) {                if (okHttpClient == null) {                    //缓存路径                    File sdcache = new File(Environment.getExternalStorageDirectory(), "wybcache");                    int cacheSize = 10 * 1024 * 1024;                    //okhttp拦截器                    HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {                        @Override                        public void log(String message) {                            Log.i("msg", message.toString());                        }                    });                    //拦截器日志分类                    httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);                    okHttpClient = new OkHttpClient.Builder().connectTimeout(15, TimeUnit.MINUTES)                            .addInterceptor(httpLoggingInterceptor)                            ..addNetworkInterceptor(new CacheInterceptor())                            //如果网络拦截器   一下要注释掉                            //.cache(new Cache(sdcache.getAbsoluteFile(), cacheSize))                            .build();                }            }        }        return okHttpClient;    }    /**     * get请求方式     *     * @param url      请求地址     * @param callback 回调接口     */    public static void doGet(String url, Callback callback) {        //获取请求对象的实例        OkHttpClient okHttpClient = OkHttp3Utils.getInstance();        //创建Request        Request request = new Request.Builder().url(url).build();        //得到Call        Call call = okHttpClient.newCall(request);        //执行异步请求        call.enqueue(callback);    }    public static void doGetHeader(String url,Map<String,String> headers, Callback callback) {        //获取请求对象的实例        OkHttpClient okHttpClient = OkHttp3Utils.getInstance();        //创建Request        Request.Builder builder = new Request.Builder();        builder.url(url);        for (String header:headers.keySet())        {            builder.addHeader(header,headers.get(header));        }        Request request=builder.build();        //得到Call        Call call = okHttpClient.newCall(request);        //执行异步请求        call.enqueue(callback);    }    /**     * post请求方式     *     * @param url      请求地址     * @param params   请求体     * @param callback 接口回调     */    public static void doPost(String url, Map<String, String> params, Callback callback) {        //获取请求对象的实例        OkHttpClient okHttpClient = OkHttp3Utils.getInstance();        //3.x版本post请求换成FormBody 封装键值对参数        FormBody.Builder builder = new FormBody.Builder();        //遍历map集合给请求体添加值        for (String key : params.keySet()) {            builder.add(key, params.get(key));        }        //创建Request        Request request = new Request.Builder().url(url).post(builder.build()).build();        //获取call        Call call = okHttpClient.newCall(request);        //异步请求        call.enqueue(callback);    }    public static void doPostHeader(String url,Map<String,String> headers, Map<String, String> params, Callback callback) {        //获取请求对象的实例        OkHttpClient okHttpClient = OkHttp3Utils.getInstance();        //3.x版本post请求换成FormBody 封装键值对参数        FormBody.Builder builder = new FormBody.Builder();        //遍历map集合给请求体添加值        for (String key : params.keySet()) {            builder.add(key, params.get(key));        }        //创建Request        //创建Request        Request.Builder builder1 = new Request.Builder();        builder1.url(url);        for (String header:headers.keySet())        {            builder1.addHeader(header,headers.get(header));        }        Request request = builder1.post(builder.build()).build();        //获取call        Call call = okHttpClient.newCall(request);        //异步请求        call.enqueue(callback);    }    /**     * 上传文件     *     * @param url      接口地址     * @param file     文件     * @param fileName 文件名     */    public static void loadFile(String url, File file, String fileName,Callback callback) {        //创建OkHttpClient请求对象        OkHttpClient okHttpClient = getInstance();        //创建RequestBody 封装file参数        RequestBody fileBody = RequestBody.create(MediaType.parse("application/octet-stream"), file);        //创建RequestBody 设置类型等        RequestBody requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM).addFormDataPart("file", fileName, fileBody).build();        //创建Request        Request request = new Request.Builder().url(url).post(requestBody).build();        Call call = okHttpClient.newCall(request);        call.enqueue(callback);    }      /**     * post请求上传文件     * 参数1 url     * 参数2 回调Callback     */    public static void uploadPic(String url, Map<String, Object> params,Callback callback) {        //创建OkHttpClient请求对象        OkHttpClient okHttpClient = getInstance();        //创建MultipartBody.Builder        MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);        for (Map.Entry<String, Object> entry : params.entrySet()) {            Object value = entry.getValue();            if (value instanceof File) {                File file = (File) value;                //创建RequestBody 封装file参数                builder.addFormDataPart(entry.getKey(), file.getName(), RequestBody.create(MediaType.parse("application/octet-stream"), file));            } else {                builder.addFormDataPart(entry.getKey(), value.toString());            }        }        //创建RequestBody 设置类型等        RequestBody requestBody = builder.build();        //创建Request        Request request = new Request.Builder().url(url).post(requestBody).build();        //得到Call        Call call = okHttpClient.newCall(request);        //执行请求       call.enqueue(callback);    }    /**     * 上传json字符     *     * @param url        接口地址     * @param jsonParams Json串     * @param callback   接口回调     */    public static void doPostJson(String url, String jsonParams, Callback callback) {        RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), jsonParams);        Request request = new Request.Builder().url(url).post(requestBody).build();        Call call = getInstance().newCall(request);        call.enqueue(callback);    }    /**     * 下载     *     * @param context     * @param url     下载地址     * @param saveDir 保存的位置     */    public static void downFile(final Activity context, final String url, final String saveDir) {        //创建Request        Request request = new Request.Builder().url(url).build();        //创建Call        Call call = getInstance().newCall(request);        //同步        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                Log.i("xxx", e.toString());            }            @Override            public void onResponse(Call call, final Response response) throws IOException {                InputStream is = null;                byte[] buf = new byte[2048];                int len = 0;                FileOutputStream fos = null;                try {                    is = response.body().byteStream();                    //apk保存路径                    final String fileDir = isExistDir(saveDir);                    //文件                    File file = new File(fileDir, getNameFromUrl(url));                    context.runOnUiThread(new Runnable() {                        @Override                        public void run() {                            Toast.makeText(context, "下载成功:" + fileDir + "," + getNameFromUrl(url), Toast.LENGTH_SHORT).show();                        }                    });                    fos = new FileOutputStream(file);                    while ((len = is.read(buf)) != -1) {                        fos.write(buf, 0, len);                    }                    fos.flush();                    //apk下载完成后 调用系统的安装方法                    Intent intent = new Intent(Intent.ACTION_VIEW);                    intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");                    context.startActivity(intent);                } catch (IOException e) {                    e.printStackTrace();                } finally {                    if (is != null) is.close();                    if (fos != null) fos.close();                }            }        });    }    /**     * @param saveDir     * @return     * @throws IOException 判断下载目录是否存在     */    public static String isExistDir(String saveDir) throws IOException {        // 下载位置        if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {            File downloadFile = new File(Environment.getExternalStorageDirectory(), saveDir);            if (!downloadFile.mkdirs()) {                downloadFile.createNewFile();            }            String savePath = downloadFile.getAbsolutePath();            Log.e("savePath", savePath);            return savePath;        }        return null;    }    /**     * @param url     * @return 从下载连接中解析出文件名     */    private static String getNameFromUrl(String url) {        return url.substring(url.lastIndexOf("/") + 1);    }    /**     * 为okhttp添加缓存，这里是考虑到服务器不支持缓存时，从而让okhttp支持缓存     */    private static class CacheInterceptor implements Interceptor {        @Override        public Response intercept(Chain chain) throws IOException {            // 有网络时 设置缓存超时时间1个小时            int maxAge = 60 * 60;            // 无网络时，设置超时为1天            int maxStale = 60 * 60 * 24;            Request request = chain.request();            if (NetWorkUtils.isNetWorkAvailable(MyApp.getInstance())) {                //有网络时只从网络获取                request = request.newBuilder().cacheControl(CacheControl.FORCE_NETWORK).build();            } else {                //无网络时只从缓存中读取                request = request.newBuilder().cacheControl(CacheControl.FORCE_CACHE).build();               /* Looper.prepare();                Toast.makeText(MyApp.getInstance(), "走拦截器缓存", Toast.LENGTH_SHORT).show();                Looper.loop();*/            }            Response response = chain.proceed(request);            if (NetWorkUtils.isNetWorkAvailable(MyApp.getInstance())) {                response = response.newBuilder()                        .removeHeader("Pragma")                        .header("Cache-Control", "public, max-age=" + maxAge)                        .build();            } else {                response = response.newBuilder()                        .removeHeader("Pragma")                        .header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale)                        .build();            }            return response;        }    }}

判断网络工具类

//判断网络工具类public class NetWorkUtils {    //判断网络是否连接    public static boolean isNetWorkAvailable(Context context) {        //网络连接管理器        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);        //网络信息        NetworkInfo info = connectivityManager.getActiveNetworkInfo();        if (info != null) {            return true;        }        return false;    }}

全局配置

//全局配置public class MyApp extends Application {    public static MyApp mInstance;    @Override    public void onCreate() {        super.onCreate();        mInstance = this;    }    public static MyApp getInstance() {        return mInstance;    }}//注意清单文件//权限   <uses-permission android:name="android.permission.INTERNET"></uses-permission><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission><application        android:name=".app.MyApp"        ...        </application>

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