使用GSON給錯誤預期BEGIN_ARRAY但STRING

Question

一個例子JSON對象如下：

[{"Title":"John Doe","Address":{"AddressLines":["The Place","123 New Place","London","England"],"Postcode":"NW7 XXY"},"Telephone":"0","Email":"","Latitude":51.5024472101345,"Longitude":-0.557585646554,"Easting":500623,"Northing":179647}] 

假設上述目的是通過鏈路www.domain.com訪問和我有下面的類來表示數據

public class LocationData extends Data{ 

    private Address Address; 
    private String Telephone; 
    private String Email; 
    private String Latitude; 
    private String Longitude; 
    private String Easting; 
    private String Northing; 

    public Address getAddress() { 
     return Address; 
    } 

    public void setAddress(Address address) { 
     Address = address; 
    } 

    public String getTelephone() { 
     return Telephone; 
    } 

    public void setTelephone(String telephone) { 
     Telephone = telephone; 
    } 

    public String getEmail() { 
     return Email; 
    } 

    public void setEmail(String email) { 
     Email = email; 
    } 

    public String getLatitude() { 
     return Latitude; 
    } 

    public void setLatitude(String latitude) { 
     Latitude = latitude; 
    } 

    public String getLongitude() { 
     return Longitude; 
    } 

    public void setLongitude(String longitude) { 
     Longitude = longitude; 
    } 

    public String getEasting() { 
     return Easting; 
    } 

    public void setEasting(String easting) { 
     Easting = easting; 
    } 

    public String getNorthing() { 
     return Northing; 
    } 

    public void setNorthing(String northing) { 
     Northing = northing; 
    } 

} 

和地址類如下：

public class Address { 

    public String[] AddressLines; 

    public String Postcode; 

    public String getPostcode() { 
     return Postcode; 
    } 

    public void setPostcode(String postcode) { 
     Postcode = postcode; 
    } 

    public String[] getAddressLines() { 
     return AddressLines; 
    } 

    public void setAddressLines(String addressLines[]) { 
     AddressLines = addressLines; 
    } 


} 

當我嘗試運行

LocationData[] data = gson.fromJson(this.locationServiceUrl, LocationData[].class); 
return data; 

我得到以下錯誤：

預計BEGIN_ARRAY但在上面的代碼中提到行字符串。我不確定在我設立班級的方式上是否有問題。注意：我使用的是數組（LocationData [] data），因爲服務返回了多個位置，儘管在上面的示例中我只包含了一個。任何幫助，爲什麼發生這是非常讚賞。我已經看過這裏的一些類似錯誤，但沒有提供任何修復似乎適用於我。

Answer 1

{ 
    "finally":[ 
     { 
      "Title":"John Doe", 
      "Address": { 
       "AddressLines":[ 
        "The Place", 
        "123 New Place", 
        "London", 
        "England" 
       ], 
       "Postcode":"NW7XXY" 
      }, 
      "Telephone":"0", 
      "Email":"", 
      "Latitude":51.5024472101345, 
      "Longitude":-0.557585646554, 
      "Easting":500623, 
      "Northing":179647 
     } 
    ] 
} 

和代碼來解析這個JSON是：

public class mainData { 

    public List<LocationData> finally; 

    public String[] getLocationData() { 
     return AddressLines; 
    } 

    public void setLocationData(List<LocationData> finally) { 
     this.finally = finally; 
    } 
} 

那是因爲你的字符串開始[當你分析這種類型的Json與GSON的，那麼你需要一個標籤前綴到它只是我像這樣（{"finally": your data }）。

其實GSON試圖映射標籤和它的價值，但在你的情況你[犯規包含標籤由GSON可以映射。