public class CacheResponse {
  public static void main(String[] args) throws IOException {
  int cacheSize = 100 * 1024 * 1024;
  File cacheDirectory = Files.createTempDirectory("cache").toFile();
  Cache cache = new Cache(cacheDirectory, cacheSize);
  OkHttpClient client = new OkHttpClient();
  client.setCache(cache);

  Request request = new Request.Builder()
      .url("http://www.baidu.com")
      .build();

  Response response = client.newCall(request).execute();
  if (!response.isSuccessful()) {
    throw new IOException("服务器端错误: " + response);
  }

  System.out.println(response.cacheResponse());
  System.out.println(response.networkResponse());
  }
}

final CacheControl.Builder builder = new CacheControl.Builder();
     builder.noCache();//不使用缓存，全部走网络
      builder.noStore();//不使用缓存，也不存储缓存
      builder.onlyIfCached();//只使用缓存
      builder.noTransform();//禁止转码
      builder.maxAge(10, TimeUnit.MILLISECONDS);//指示客户机可以接收生存期不大于指定时间的响应。
      builder.maxStale(10, TimeUnit.SECONDS);//指示客户机可以接收超出超时期间的响应消息
      builder.minFresh(10, TimeUnit.SECONDS);//指示客户机可以接收响应时间小于当前时间加上指定时间的响应。
      CacheControl cache = builder.build();//cacheControl

     CacheControl.FORCE_CACHE; //仅仅使用缓存
      CacheControl.FORCE_NETWORK;// 仅仅使用网络

      final CacheControl.Builder builder = new CacheControl.Builder();
      builder.maxAge(10, TimeUnit.MILLISECONDS);
      CacheControl cache = builder.build();

final CacheControl.Builder builder = new CacheControl.Builder();
      builder.maxAge(10, TimeUnit.MILLISECONDS);
      CacheControl cache = builder.build();
      final Request request = new Request.Builder().cacheControl(cache).url(requestUrl).build();
      final Call call = mOkHttpClient.newCall(request);//
      call.enqueue(new Callback() {
        @Override
        public void onFailure(Call call, IOException e) {
          failedCallBack("访问失败", callBack);
          Log.e(TAG, e.toString());
        }

        @Override
        public void onResponse(Call call, Response response) throws IOException {
          if (response.isSuccessful()) {
            String string = response.body().string();
            Log.e(TAG, "response ----->" + string);
            successCallBack((T) string, callBack);
          } else {
            failedCallBack("服务器错误", callBack);
          }
        }
      });
      return call;
    } catch (Exception e) {
      Log.e(TAG, e.toString());
    }

    //判断网络是否连接
    boolean connected = NetworkUtil.isConnected(context);
     if (!connected) {
       request = request.newBuilder().cacheControl(CacheControl.FORCE_CACHE).build();
     }