java.lang.IllegalStateException：預期的BEGIN_OBJECT，但BEGIN_ARRAY在行1列2路徑$

Question

我是新的改造。下面是我的代碼來獲得供應商名單

樣品JSON響應是JSON數組&不是JSON對象

[ 
{ 
"Key" : "1", 
"Value" : "xyz" 
}, 
{ 
"Key" : "2", 
"Value" : "abc" 
} 
] 

下面是我的代碼

private void callToRetrofit() { 
    ApiInterface apiInterface = ApiClient.getApiClient() 
      .create(ApiInterface.class); 
    Call<List<SD_Checklist_Supplier_Model>> call = apiInterface.getVendors(); 
    call.enqueue(new Callback<List<SD_Checklist_Supplier_Model>>() { 
     @Override 
     public void onResponse(Call<List<SD_Checklist_Supplier_Model>> call, Response<List<SD_Checklist_Supplier_Model>> response) { 
      Log.v("onResponse", " : ok" + response == null ? " null" : "okkkk" + response.toString()); 
     } 

     @Override 
     public void onFailure(Call<List<SD_Checklist_Supplier_Model>> call, Throwable t) { 
      Log.v("onFailure", " : " + t.toString()); 
     } 
    }); 
} 

Model類

public class SD_Checklist_Supplier_Model { 

    @SerializedName("Key") 
    private String supplierID; 
    @SerializedName("Value") 
    private String supplierName; 
    private boolean isSupplierSelected; 

    public String getSupplierID() { 
     return supplierID; 
    } 

    public void setSupplierID(String supplierID) { 
     this.supplierID = supplierID; 
    } 

    public String getSupplierName() { 
     return supplierName; 
    } 

    public void setSupplierName(String supplierName) { 
     this.supplierName = supplierName; 
    } 

    public boolean isSupplierSelected() { 
     return isSupplierSelected; 
    } 

    public void setSupplierSelected(boolean supplierSelected) { 
     isSupplierSelected = supplierSelected; 
    } 
} 

目前，我得到

com.google.gson.JsonSyntaxException：java.lang.IllegalStateException： 預計BEGIN_OBJECT但BEGIN_ARRAY位於第1行第2列路徑$

請幫助我。

Answer 1

您的API調用的響應是一個列表，您不是分配給列表。

更改代碼

Call<SD_Checklist_Supplier_Model> call = apiInterface.getVendors(); 

爲

Call<List<SD_Checklist_Supplier_Model>> call = apiInterface.getVendors();