Question

尝试使用Retrofit解析JSON响应时出现以下错误： java.lang.IllegalStateException: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path $

这就是JSON响应的样子：

{
    "automobi": [{
        "Dealers": {
            "Dealer": [{
                "@attributes": {
                    "Id": "12",
                    "Name": "Barons Tokai",
                    "Region": "Western Cape",
                    "Status": "active",
                    "UniqueKey": "96ec67999ed613174efe17f697dc4695"
                }
            }, {
                "@attributes": {
                    "Id": "13",
                    "Name": "Barons Pietermaritzburg",
                    "Region": "KwaZulu-Natal",
                    "Status": "active",
                    "UniqueKey": "0f0637a035a9bc98ac67aa30ffc1367e"
                }
            }, {
                "@attributes": {
                    "Id": "36",
                    "Name": "Barons Bellville",
                    "Region": "Western Cape",
                    "Status": "active",
                    "UniqueKey": "9ec8f24fdee47f14ce56e9a3fc2689a4"
                }
            }, {
                "@attributes": {
                    "Id": "37",
                    "Name": "Barons Bruma",
                    "Region": "Gauteng",
                    "Status": "active",
                    "UniqueKey": "de7ac02f51463d94cb11947c1bf5589c"
                }
            }, {
                "@attributes": {
                    "Id": "38",
                    "Name": "Barons Culemborg",
                    "Region": "Western Cape",
                    "Status": "active",
                    "UniqueKey": "de2d98530d1ac95218c2eb5d25d847b2"
                }
            }, {
                "@attributes": {
                    "Id": "39",
                    "Name": "Barons N1 City",
                    "Region": "Western Cape",
                    "Status": "active",
                    "UniqueKey": "a055a9a6fa1c9a43cced2335ce6eefcb"
                }
            }, {
                "@attributes": {
                    "Id": "40",
                    "Name": "Barons Durban",
                    "Region": "KwaZulu-Natal",
                    "Status": "active",
                    "UniqueKey": "8e49cb3d88b54d144c6728a450b2f491"
                }
            }, {
                "@attributes": {
                    "Id": "41",
                    "Name": "Barons Woodmead",
                    "Region": "Gauteng",
                    "Status": "active",
                    "UniqueKey": "097722a842f43f0c59cfac14694b8443"
                }
            }]
        }
    }]
}

这是我的经销商类：

public class Dealer {
    @SerializedName("Id")
    String mId;

    @SerializedName("Name")
    String mName;

    @SerializedName("Region")
    String mRegion;

    @SerializedName("UniqueKey")
    String mUniqueKey;

    public String getId() {
        return mId;
    }

    public void setId(String id) {
        this.mId = id;
    }

    public String getName() {
        return mName;
    }

    public void setName(String name) {
        this.mName = name;
    }

    public String getRegion() {
        return mRegion;
    }

    public void setRegion(String region) {
        this.mRegion = region;
    }

    public String getUniqueKey() {
        return mUniqueKey;
    }

    public void setUniqueKey(String uniqueKey) {
        this.mUniqueKey = uniqueKey;
    }
}

这是改装电话：

@FormUrlEncoded
@POST("get_dealer_list.php")
Call<List<Dealer>> getDealers(@Field("listname") String listName, @Field("outputformat") String outputFormat);

对于我做错的任何想法？

Answer 1

创建以下类：

对于最小的孩子

＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 12＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Tokai＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 96ec67999ed613174efe17f697dc4695＆＃34; }

    public class DealerObject {
       @SerializedName("@attribute")
       Dealer attribute;

       public getAttribute() {
          return attribute;
       }
    }

下一个

＆＃34;经销商＆＃34;：[ { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 12＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Tokai＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 96ec67999ed613174efe17f697dc4695＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 13＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Pietermaritzburg＆＃34;，＆＃34;地区＆＃34;：＆＃34;夸祖鲁 - 纳塔尔＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 0f0637a035a9bc98ac67aa30ffc1367e＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 36＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Bellville＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 9ec8f24fdee47f14ce56e9a3fc2689a4＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 37＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Bruma＆＃34;，＆＃34;地区＆＃34;：＆＃34;豪登＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; de7ac02f51463d94cb11947c1bf5589c＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 38＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Culemborg＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; de2d98530d1ac95218c2eb5d25d847b2＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 39＆＃34;，＆＃34;姓名＆＃34;：＆＃34;男爵N1城市＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; a055a9a6fa1c9a43cced2335ce6eefcb＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 40＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Durban＆＃34;，＆＃34;地区＆＃34;：＆＃34;夸祖鲁 - 纳塔尔＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 8e49cb3d88b54d144c6728a450b2f491＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 41＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Woodmead＆＃34;，＆＃34;地区＆＃34;：＆＃34;豪登＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 097722a842f43f0c59cfac14694b8443＆＃34; } } ]

    public class DealerListObject {

       List<DealerObject> Dealer;

       public getDealer {
          return Dealer;
       }
    }

Delers大对象

＆＃34;经销商＆＃34;：{ ＆＃34;经销商＆＃34;：[ { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 12＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Tokai＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 96ec67999ed613174efe17f697dc4695＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 13＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Pietermaritzburg＆＃34;，＆＃34;地区＆＃34;：＆＃34;夸祖鲁 - 纳塔尔＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 0f0637a035a9bc98ac67aa30ffc1367e＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 36＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Bellville＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 9ec8f24fdee47f14ce56e9a3fc2689a4＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 37＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Bruma＆＃34;，＆＃34;地区＆＃34;：＆＃34;豪登＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; de7ac02f51463d94cb11947c1bf5589c＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 38＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Culemborg＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; de2d98530d1ac95218c2eb5d25d847b2＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 39＆＃34;，＆＃34;姓名＆＃34;：＆＃34;男爵N1城市＆＃34;，＆＃34;地区＆＃34;：＆＃34;西开普省＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; a055a9a6fa1c9a43cced2335ce6eefcb＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 40＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Durban＆＃34;，＆＃34;地区＆＃34;：＆＃34;夸祖鲁 - 纳塔尔＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 8e49cb3d88b54d144c6728a450b2f491＆＃34; } }， { ＆＃34; @ attributes＆＃34;：{ ＆＃34; Id＆＃34;：＆＃34; 41＆＃34;，＆＃34;姓名＆＃34;：＆＃34; Barons Woodmead＆＃34;，＆＃34;地区＆＃34;：＆＃34;豪登＆＃34;，＆＃34;状态＆＃34;：＆＃34;活跃＆＃34;，＆＃34; UniqueKey＆＃34;：＆＃34; 097722a842f43f0c59cfac14694b8443＆＃34; } } ] }

   public class BigDealerObject {

       List<DealerListObject> Dealers;

       public getBigDealerObject {
          return Dealers;
       }
    }

然后对所有回复：

   public class DealerResponse {

       List<BigDealerObject> automobi;

       public getAutomobi {
          return automobi;
       }
    }

最后，请致电：

Call<DealerResponse> getDealers(@Field("listname") String listName, @Field("outputformat") String outputFormat);

Answer 2

不确定。正如您在尝试将其分配给列表（List）时，您可以看到JSON响应以对象（{}）开头。要解决这个问题，你应该创建一个名为Response的类，它将包含以下字段和类：

public class Response {
    public DealersClass Dealers;
}

class DealersClass {
    public List<Dealer> Dealer;
}

经销商类是您构建的类。一种避免将来出现此类错误的简单方法是查看您的回复。当你看到{这意味着你应该将它与Java类匹配。当你看到[这意味着你应该将它与Java List匹配。

希望它有所帮助。

在Retrofit中解析JSON响应

2 个答案: