如何获得对象响应，同时给出数组响应

Question

我想将用户注册到我们公司的后端服务器。

为此，我创建了一个带有api键的@Header和带有用户信息的@Body的Post请求。但是，当我按下api时，作为响应，它会显示类似“ data”：[]的响应，其中应该像“ data”：{}

SignInInfo.kt

data class SignInInfo(
    @SerializedName("name") val name: String,
    @SerializedName("email") val email: String,
    @SerializedName("user_type") val userType: String,
    @SerializedName("phone") val phone: String,
    @SerializedName("password") val password: String
)

RegistrationResponse.kt

data class RegistrationResponse(
    @field:SerializedName("msg") val msg: String? = null,
    @field:SerializedName("data") val data: Data? = null,
    @field:SerializedName("status") val status: Int? = null
)

Data.kt

data class Data(
    @field:SerializedName("user_id") val userId: Int,
    @field:SerializedName("id") val id: Int,
    @field:SerializedName("token") val token: String
)

api.kt

@POST(Constants.API_USER_REGISTRATION)
fun registerUser(
    @Body signInInfo: SignInInfo
): Call<RegistrationResponse>

RetrofitBuilder.kt

object RetrofitBuilder {

    fun retrofit(baseUrl: String): Retrofit = Retrofit.Builder()
        .client(getOkHttpClient())
        .baseUrl(baseUrl)
        .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
        .addConverterFactory(GsonConverterFactory.create())
        .build()

    private fun getOkHttpClient(): OkHttpClient {
        return OkHttpClient().newBuilder()
            .connectTimeout(3, TimeUnit.SECONDS)
            .readTimeout(3, TimeUnit.SECONDS)
            .writeTimeout(3, TimeUnit.SECONDS)
            .addInterceptor(headersInterceptor)
            .addInterceptor(loggingInterceptor)
            .build()
    }

}

ApiUtils.kt

object ApiUtils {

    val loggingInterceptor = HttpLoggingInterceptor().apply {
        level = HttpLoggingInterceptor.Level.BODY
    }

    val headersInterceptor = Interceptor {
        val request = it.request()

        it.proceed(
            request.newBuilder()
                .addHeader("Accept", "application/json")
                .addHeader("Content-Type", "application/json")
                .addHeader("api_key", "sr8fyw8hcow8efhisncsef0wefw9ef0swdcsopd")
                .build()
        )
    }
}

viewModel.kt

fun register(signInInfo: SignInInfo) {
        ApiFactory.userRegistrationApi.registerUser(signInInfo).enqueue(object :
            Callback<RegistrationResponse> {

            override fun onFailure(call: Call<RegistrationResponse>, t: Throwable) {
                Log.d("Got Error Here", t.toString())
            }

            override fun onResponse(
                call: Call<RegistrationResponse>,
                response: Response<RegistrationResponse>
            ) {
                if (response.isSuccessful) {
                    Log.d("Success", response.body()?.msg)
                } else {
                    Log.d("error", response.message())
                }
            }

        })
    }

我希望这样的输出

{
    "status": 1,
    "data": {
        "id": 135386,
        "user_id": 1567057386,
        "token": "geYs2rO6wjtO653I9OVhJWTFwYxAvnYnLGG7wm7dfa"
    },
    "msg": "Welcome Aomi"
}