GSON抛出期望的BEGIN_ARRAY，但是BEGIN_OBJECT错误 [英] GSON throws Expected BEGIN_ARRAY but was BEGIN_OBJECT error

问题描述

我正在使用GSON改造和解析结果。不知道为什么，但我收到了这一个

预计BEGIN_ARRAY，但是BEGIN_OBJECT在第1行第2列路径

我知道这个错误的含义，但没有看到原因。

这是我的json响应

  {suggestions：[
 {
value：гКазань，
unrestricted_value：РеспТатарстан，гКазань，
data：{
qc_complete：null，
qc_house：null，
qc_geo ：4，
postal_code：420000，
postal_box：null，
country：Россия，
region_fias_id：null，
region_kladr_id：null，
region_with_type：РеспТатарстан，
region_type：Респ，
region_type_full：республика，
 region：Татарстан，
area_fias_id：null，
area_kladr_id：null，
area_with_type：null，
 area_type：null，
area_type_full：null，
area：null，
city_fias_id：null，
city_kladr_id：null，
 city_with_type：гКазань，
city_type：г，
city_type_full：город，
city：Казань，
 city_district：null，
settlement_fias_id：null，
settlement_kladr_id：null，
settlement_with_type：null，
settlement_type：null，
 settlement_type_full：null，
settlement：null，
street_fias_id：null，
street_kladr_id：null，
street_with_type：null，
 street_type：null，
street_type_full：null，
street：null，
house_fias_id：null，
house_kladr_id：null，
 house_type：null，
house_type_full：null，
house：null，
block_type：null，
block_type_full：null，
块：null，
flat_area：null，
square_meter_price：null，
flat_price：null，
flat_type：null，
flat_type_full：null，
flat：null，
fias_id：93b3df57-4c89-44df-ac42-96f05e9cd3b9，
fias_level：4，
kladr_id：1600000100000，
tax_office： 1600，
tax_office_legal：null，
capital_marker：2，
okato：92401000000，
oktmo：92701000， 
timezone：null，
geo_lat：55.7943051，
geo_lon：49.1116709，
beltway_hit：null，
beltway_distance ：null，
unparsed_pa​​rts：null，
qc：null 
} 
}]} 
  

这是我的模型，由pojogenerator生成。

pre $ public元素DadataResponse {

@SerializedName（建议）
@Expose
私人列表< Suggestion> suggestions = new ArrayList< Suggestion>（）;

/ **
*
* @return
*建议
* /
public List< Suggestion> getSuggestions（）{
返回建议;
}

/ **
*
* @参数建议
*建议
* /
public void setSuggestions列出<建议>建议）{
this.suggestions = suggestions;
}

}

 public class Suggestion {
 
 @SerializedName（value）
 @Expose 
 private String value; 
 @SerializedName（unrestricted_value）
 @Expose 
 private String unrestrictedValue; 
 @SerializedName（data）
 @Expose 
私有数据数据; 
 $ b $ ** 
 * 
 * @return 
 * 
 * / 
 public String getValue（）{
返回值; 
 
 $ b $ ** 
 
 * @param value 
 * 
 * / 
 public void setValue（字符串值）{
 this.value = value; 
 
 $ b / ** 
 * 
 * @return 
 * unrestrictedValue 
 * / 
 public String getUnrestrictedValue（） {
 return unrestrictedValue; 
} 
 
 / ** 
 * 
 * @param unrestrictedValue 
 * unrestricted_value 
 * / 
 public void setUnrestrictedValue String unrestrictedValue）{
 this.unrestrictedValue = unrestrictedValue; 
 
 $ b / ** 
 * 
 * @return 
 *数据
 * / 
 public Data getData（） {
返回数据; 
} 
 
 / ** 
 * 
 * @param data 
 *数据
 * / 
 public void setData数据数据）{
 this.data = data; 
} 
  

}

和数据类，但它太大，不需要在这里发布。

那么为什么我收到此错误？请帮助

UPD

  public ApiService（String URLSTRING）{
 
 RequestInterceptor requestInterceptor = new RequestInterceptor（）{
 @Override 
 public void intercept（RequestFacade request）{
 request.addHeader（Authorization，Token）; 
 request.addHeader（Content-Type，application / json）; 
 request.addHeader（Accept，application / json）; 
} 
}; 
 
 RestAdapter restAdapter = new RestAdapter.Builder（）
 .setEndpoint（URLSTRING）
 .setRequestInterceptor（requestInterceptor）
 .setLogLevel（RestAdapter.LogLevel.FULL）
 .build（）; 
 
 mApi = restAdapter.create（Api.class）; 
} 
 
 public interface Api {
 
 @GET（/ address）
 List< DadataResponse> getDadata（@Query（query）字符串查询）; 
 
 $ b $ / code> 




解决方案

/ p>



  List< DadataResponse> getDadata（@Query（query）字符串查询）; 
  

至

  DadataResponse getDadata（@Query（query）String query）; 
  





期望的BEGIN_ARRAY，但在第1行第2列路径为BEGIN_OBJECT

表示期待一个数组（因为您告诉它），但它收到了一个对象。



看起来您收到一个 DadataResponse ，而不是它们的数组，因此您需要更新签名以符合现实。


I am using retrofit and parse result with GSON. Don't know why but I receive this one

Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path

I know what this error mean but don't see the reason.

This is my json response

{"suggestions": [
{
  "value": "г Казань",
  "unrestricted_value": "Респ Татарстан, г Казань",
  "data": {
    "qc_complete": null,
    "qc_house": null,
    "qc_geo": "4",
    "postal_code": "420000",
    "postal_box": null,
    "country": "Россия",
    "region_fias_id": null,
    "region_kladr_id": null,
    "region_with_type": "Респ Татарстан",
    "region_type": "Респ",
    "region_type_full": "республика",
    "region": "Татарстан",
    "area_fias_id": null,
    "area_kladr_id": null,
    "area_with_type": null,
    "area_type": null,
    "area_type_full": null,
    "area": null,
    "city_fias_id": null,
    "city_kladr_id": null,
    "city_with_type": "г Казань",
    "city_type": "г",
    "city_type_full": "город",
    "city": "Казань",
    "city_district": null,
    "settlement_fias_id": null,
    "settlement_kladr_id": null,
    "settlement_with_type": null,
    "settlement_type": null,
    "settlement_type_full": null,
    "settlement": null,
    "street_fias_id": null,
    "street_kladr_id": null,
    "street_with_type": null,
    "street_type": null,
    "street_type_full": null,
    "street": null,
    "house_fias_id": null,
    "house_kladr_id": null,
    "house_type": null,
    "house_type_full": null,
    "house": null,
    "block_type": null,
    "block_type_full": null,
    "block": null,
    "flat_area": null,
    "square_meter_price": null,
    "flat_price": null,
    "flat_type": null,
    "flat_type_full": null,
    "flat": null,
    "fias_id": "93b3df57-4c89-44df-ac42-96f05e9cd3b9",
    "fias_level": "4",
    "kladr_id": "1600000100000",
    "tax_office": "1600",
    "tax_office_legal": null,
    "capital_marker": "2",
    "okato": "92401000000",
    "oktmo": "92701000",
    "timezone": null,
    "geo_lat": "55.7943051",
    "geo_lon": "49.1116709",
    "beltway_hit": null,
    "beltway_distance": null,
    "unparsed_parts": null,
    "qc": null
  }
} ]}

This is my models generated by pojogenerator.

public class DadataResponse {

@SerializedName("suggestions")
@Expose
private List<Suggestion> suggestions = new ArrayList<Suggestion>();

/**
 * 
 * @return
 *     The suggestions
 */
public List<Suggestion> getSuggestions() {
    return suggestions;
}

/**
 * 
 * @param suggestions
 *     The suggestions
 */
public void setSuggestions(List<Suggestion> suggestions) {
    this.suggestions = suggestions;
}

}

public class Suggestion {

@SerializedName("value")
@Expose
private String value;
@SerializedName("unrestricted_value")
@Expose
private String unrestrictedValue;
@SerializedName("data")
@Expose
private Data data;

/**
 * 
 * @return
 *     The value
 */
public String getValue() {
    return value;
}

/**
 * 
 * @param value
 *     The value
 */
public void setValue(String value) {
    this.value = value;
}

/**
 * 
 * @return
 *     The unrestrictedValue
 */
public String getUnrestrictedValue() {
    return unrestrictedValue;
}

/**
 * 
 * @param unrestrictedValue
 *     The unrestricted_value
 */
public void setUnrestrictedValue(String unrestrictedValue) {
    this.unrestrictedValue = unrestrictedValue;
}

/**
 * 
 * @return
 *     The data
 */
public Data getData() {
    return data;
}

/**
 * 
 * @param data
 *     The data
 */
public void setData(Data data) {
    this.data = data;
}

}

and the data class but its too big and don't need to post it here.

So why I receive this error? Please help

UPD

public ApiService(String URLSTRING){

    RequestInterceptor requestInterceptor = new RequestInterceptor() {
        @Override
        public void intercept(RequestFacade request) {
            request.addHeader("Authorization", "Token");
            request.addHeader("Content-Type","application/json");
            request.addHeader("Accept","application/json");
        }
    };

    RestAdapter restAdapter = new RestAdapter.Builder()
            .setEndpoint(URLSTRING)
                    .setRequestInterceptor(requestInterceptor)
            .setLogLevel(RestAdapter.LogLevel.FULL)
            .build();

    mApi = restAdapter.create(Api.class);
}

 public interface Api{

    @GET("/address")
    List<DadataResponse> getDadata(@Query("query") String query);

 }

解决方案

Change

List<DadataResponse> getDadata(@Query("query") String query);

to

DadataResponse getDadata(@Query("query") String query);

Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path

means it's expecting an array (because you told it to) but it received an object.

It looks like you receive a single DadataResponse and not an array of them, so you need to update your signature to match reality.

这篇关于GSON抛出期望的BEGIN_ARRAY，但是BEGIN_OBJECT错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！