Android：获得响应“200 ok”但 Retrofit 失败

Question

I am posting JSON array with Retrofit2 but when i post it, i'm getting "200 Ok" response and retrofit's onFailed method being called. And it says "Expected BEGIN_ARRAY but was STRING at line 1 column 2 path $"

Do i successfully send the JSON to WebService? If it's successful then why Retrofit fails? My JSON array like this:

[{"Date":"2019-01-01T00:00:00","Duration":"25","Type":1,"Number":"53201","id":0,"isDataSent":false,"Name":"test isim","phoneNumber":"5554242422"}]

I have test the JSON with PostMan. It is fine.

My Retrofit request like this:

RetrofitClient.getClient()
            .postCallModel(list)
            .enqueue(object : Callback<List<CallLogModel>>{
                override fun onFailure(call: Call<List<CallLogModel>>, t: Throwable) {
                    Log.d(tag,"Retrofit Failed!")
                    Log.d(tag,call.toString())
                    Log.d(tag,t.message)
                }

                override fun onResponse(call: Call<List<CallLogModel>>, response: Response<List<CallLogModel>>
                ) {
                    Log.d(tag,"Retrofit Succeeded!")
                    Log.d(tag,response.message())
                }
            })

Is there an expert to help me with this?

My model class:

@Entity(tableName = "supportCallLog")
data class CallLogModel(
@SerializedName("Name")
val userName: String,
@SerializedName("phoneNumber")
val userPhone: String,
@SerializedName("Number")
val customerPhone: String,
@SerializedName("Time")
val callDuration: String,
@SerializedName("Type")
val callType: Int,
@SerializedName("Date")
val callDate: String,
var isDataSent : Boolean
){
@PrimaryKey(autoGenerate = true)
var id : Int = 0
 }

My Retrofit Interface:

interface RetrofitService {
@POST("api")
fun postCallModel(@Body callLogModel: List<CallLogModel>) : Call<List<CallLogModel>>
   }

Answer 1

Your POST is correct and thats why you get 200. But problem is in your response from server. It expect a array but getting object , which leads this error.

Answer 2

I solved the problem with @CommonsWare's help. I am posting json but i have to handle the response that comes from web service. And web service returns String. So i have changed the return type of my postCallModel()

Old return type was like this:

Call<List<CallLogModel>>

And i changed it to:

Call<Any>

Now i don't have to worry about what type of response web service returns.