HttpUtils一个另外的OkHttp封装工具类

首先是一个单例模式，之后是对doPost,doGet的一个简单封装

public class HttpUtils { private static final String TAG = "HttpUtils-----"; private static HttpUtils httpUtils; private final int SUCCESS = 0; private final int ERROR = 1; private MyHandler myHandler = new MyHandler(); private OkLoadListener okLoadListener; public static HttpUtils getHttpUtils() { if (httpUtils == null) { httpUtils = new HttpUtils(); } return httpUtils; } class MyHandler extends Handler { @Override public void handleMessage(Message msg) { switch (msg.what) { case SUCCESS: //成功 String json = (String) msg.obj; okLoadListener.okLoadSuccess(json); break; case ERROR: //失败 String error = (String) msg.obj; okLoadListener.okLoadError(error); break; } } } //get public void okGet(String url) { OkHttpClient okHttpClient = new OkHttpClient.Builder().addInterceptor(new MyIntercepter()).build(); Request request = new Request.Builder().url(url).build(); Call call = okHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Message message = myHandler.obtainMessage(); message.what = ERROR; message.obj = e.getMessage(); myHandler.sendMessage(message); } @Override public void onResponse(Call call, Response response) throws IOException { Message message = myHandler.obtainMessage(); message.what = SUCCESS; message.obj = response.body().string(); myHandler.sendMessage(message); } }); } public interface OkLoadListener { void okLoadSuccess(String json); void okLoadError(String error); } public void setOkLoadListener(OkLoadListener okLoadListener) { this.okLoadListener = okLoadListener; } //post public void okPost(String url, Map<String, String> params) { OkHttpClient okHttpClient = new OkHttpClient.Builder().addInterceptor(new MyIntercepter()).build(); FormBody.Builder builder = new FormBody.Builder(); Set<String> keySet = params.keySet(); for (String key : keySet) { String value = params.get(key); builder.add(key, value); } FormBody formBody = builder.build(); Request request = new Request.Builder().url(url).post(formBody).build(); Call call = okHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Message message = myHandler.obtainMessage(); message.what = ERROR; message.obj = e.getMessage(); myHandler.sendMessage(message); } @Override public void onResponse(Call call, Response response) throws IOException { Message message = myHandler.obtainMessage(); message.what = SUCCESS; message.obj = response.body().string(); myHandler.sendMessage(message); } }); } //拦截器 class MyIntercepter implements Interceptor { //intercept 拦截 @Override public Response intercept(Chain chain) throws IOException { //添加公共参数 //post 取出原来所有的参数，将之加到新的请求体里面。然后让请求去执行 Request request = chain.request(); //获取请求方法 String method = request.method(); if (method.equals("GET")) {//GET 拦截 //取出url地址 String url = request.url().toString(); //拼接公共参数 boolean contains = url.contains("?"); if (contains) { url = url + "&source=android"; } else { url = url + "?source=android"; } Request request1 = request.newBuilder().url(url).build(); Response response = chain.proceed(request1); return response; } else if (method.equals("POST")) {//POST 拦截 RequestBody body = request.body();//请求体 if (body instanceof FormBody) { //创建新的请求体 FormBody.Builder newBuilder = new FormBody.Builder(); for (int i = 0; i < ((FormBody) body).size(); i++) { String key = ((FormBody) body).name(i); String value = ((FormBody) body).value(i); newBuilder.add(key, value); } //添加公共参数 newBuilder.add("source", "android"); FormBody newBody = newBuilder.build(); //创建新的请求体 Request request1 = request.newBuilder().post(newBody).build(); //去请求 Response response = chain.proceed(request1); return response; } } return null; } } //上传文件（图片） public void upLoadImage(String url, String path) {//url 要上传的地址。path 要上传的文件路径 //媒体类型 MediaType mediaType = MediaType.parse("image/*"); //multipartbody MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM); File file = new File(path); MultipartBody multipartBody = builder.addFormDataPart("file", file.getName(), RequestBody.create(mediaType, file)).build(); OkHttpClient okHttpClient = new OkHttpClient(); Request request = new Request.Builder().url(url).post(multipartBody).build(); Call call = okHttpClient.newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.d(TAG, "上传失败0----: "); } @Override public void onResponse(Call call, Response response) throws IOException { Log.d(TAG, "上传成功: "); } }); } }