Android OkHttp网络获取数据get，post请求方法封装

public class OkHttpUtils {
    private static OkHttpUtils okHttpUtils = null;

    public static OkHttpUtils getInstance() {
        if (okHttpUtils == null) {
            synchronized (OkHttpUtils.class) {
                if (okHttpUtils == null) {
                    okHttpUtils = new OkHttpUtils();
                }
            }

        }
        return okHttpUtils;
    }

    private static OkHttpClient okHttpClient = null;

    public synchronized static OkHttpClient getOkHttpClient() {
        if (okHttpClient == null) {
            HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
                @Override
                public void log(String message) {
                    Log.i("拦截器", message);
                }
            });

            interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);


            okHttpClient = new OkHttpClient.Builder().addInterceptor(interceptor).build();

        }
        return okHttpClient;
    }


    //get方法
    public void doGet(String url, Callback callback) {

        OkHttpClient okHttpClient = getOkHttpClient();

        Request request = new Request.Builder()
                .url(url)
                .build();

        okHttpClient.newCall(request).enqueue(callback);


    }

    //doPost方法
    public void doPost(String url, Map params, Callback callback) {

        OkHttpClient okHttpClient = getOkHttpClient();

        FormBody.Builder builder = new FormBody.Builder();
        for (String key : params.keySet()) {
            builder.add(key, params.get(key));
        }
        FormBody formBody = builder.build();


        Request request = new Request.Builder()
                .post(formBody)
                .url(url)
                .build();
        okHttpClient.newCall(request).enqueue(callback);

    }


}