okhttp的get请求方法

OkHttpClient okHttpClient=new OkHttpClient();
Request.Builder builder=new Request.Builder();
Request request=builder.get().url("http://www.imooc.com/").build();

Call call=okHttpClient.newCall(request);
call.enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
        LogView.e("onFailure"+e.getMessage());
        e.printStackTrace();
    }

    @Override
    public void onResponse(Call call, Response response) throws IOException {
        LogView.e("onResponse:");

        String res=response.body().string();
        LogView.e(res);
    }
});