OkHttp3封装
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package com.bwie.mylibrary;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Environment;import android.util.Log;import android.widget.Toast;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.Map;import java.util.concurrent.TimeUnit;import okhttp3.Cache;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.MediaType;import okhttp3.MultipartBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.RequestBody;import okhttp3.Response;import okhttp3.logging.HttpLoggingInterceptor;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) .writeTimeout(20, TimeUnit.SECONDS).readTimeout(20, TimeUnit.SECONDS) .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 okhttp3.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 okhttp3.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) { //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(); okhttp3.Call call = okHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(okhttp3.Call call, IOException e) { } @Override public void onResponse(okhttp3.Call call, Response response) throws IOException { } }); } /** * 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(); okhttp3.Call callbacll = getInstance().newCall(request); callbacll.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 okhttp3.Call call = getInstance().newCall(request); //同步 call.enqueue(new Callback() { @Override public void onFailure(okhttp3.Call call, IOException e) { } @Override public void onResponse(okhttp3.Call call, 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); } //公共参数拦截器 private static class CommonParamsInterceptor implements Interceptor { //拦截的方法 @Override public Response intercept(Chain chain) throws IOException { //获取到请求 Request request = chain.request(); //获取请求的方式 String method = request.method(); //获取请求的路径 String oldUrl = request.url().toString(); Log.e("---拦截器",request.url()+"---"+request.method()+"--"+request.header("User-agent")); //要添加的公共参数...map Map<String,String> map = new HashMap<>(); map.put("source","android"); if ("GET".equals(method)){ // 1.http://www.baoidu.com/login --------？ key=value&key=value // 2.http://www.baoidu.com/login? --------- key=value&key=value // 3.http://www.baoidu.com/login?mobile=11111 -----&key=value&key=value StringBuilder stringBuilder = new StringBuilder();//创建一个stringBuilder stringBuilder.append(oldUrl); if (oldUrl.contains("?")){ //?在最后面....2类型 if (oldUrl.indexOf("?") == oldUrl.length()-1){ }else { //3类型...拼接上& stringBuilder.append("&"); } }else { //不包含? 属于1类型,,,先拼接上?号 stringBuilder.append("?"); } //添加公共参数.... for (Map.Entry<String,String> entry: map.entrySet()) { //拼接 stringBuilder.append(entry.getKey()) .append("=") .append(entry.getValue()) .append("&"); } //删掉最后一个&符号 if (stringBuilder.indexOf("&") != -1){ stringBuilder.deleteCharAt(stringBuilder.lastIndexOf("&")); } String newUrl = stringBuilder.toString();//新的路径 //拿着新的路径重新构建请求 request = request.newBuilder() .url(newUrl) .build(); }else if ("POST".equals(method)){ //先获取到老的请求的实体内容 RequestBody oldRequestBody = request.body();//....之前的请求参数,,,需要放到新的请求实体内容中去 //如果请求调用的是上面doPost方法 if (oldRequestBody instanceof FormBody){ FormBody oldBody = (FormBody) oldRequestBody; //构建一个新的请求实体内容 FormBody.Builder builder = new FormBody.Builder(); //1.添加老的参数 for (int i=0;i<oldBody.size();i++){ builder.add(oldBody.name(i),oldBody.value(i)); } //2.添加公共参数 for (Map.Entry<String,String> entry:map.entrySet()) { builder.add(entry.getKey(),entry.getValue()); } FormBody newBody = builder.build();//新的请求实体内容 //构建一个新的请求 request = request.newBuilder() .url(oldUrl) .post(newBody) .build(); } } Response response = chain.proceed(request); return response; } } /** * 网络缓存的拦截器......注意在这里更改cache-control头是很危险的,一般客户端不进行更改,,,,服务器端直接指定 * * 没网络取缓存的时候,一般都是在数据库或者sharedPerfernce中取出来的 * * * */ /*private static class CacheInterceptor implements Interceptor{ @Override public Response intercept(Chain chain) throws IOException { //老的响应 Response oldResponse = chain.proceed(chain.request()); *//*if (NetUtils.isNetworkConnected(DashApplication.getAppContext())){ int maxAge = 120; // 在线缓存在2分钟内可读取 return oldResponse.newBuilder() .removeHeader("Pragma") .removeHeader("Cache-Control") .header("Cache-Control", "public, max-age=" + maxAge) .build(); }else { int maxStale = 60 * 60 * 24 * 14; // 离线时缓存保存2周 return oldResponse.newBuilder() .removeHeader("Pragma") .removeHeader("Cache-Control") .header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale) .build(); }*//* } }*/}阅读全文
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