okhttp3.Callback的匿名实现

OkHttpClient client = new OkHttpClient();

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

client.newCall(request).enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
        // 请求失败的回调方法
        e.printStackTrace();
    }

    @Override
    public void onResponse(Call call, Response response) throws IOException {
        // 请求成功的回调方法
        if (response.isSuccessful()) {
            String responseBody = response.body().string();
            // 处理响应数据
        } else {
            // 处理请求失败的情况
        }
    }
});