预计BEGIN_ARRAY但BEGIN_OBJECT在行1列35 [英] Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 35

问题描述

我刚开始GSON，我试图分析其​​启动为对象的JSON字符串，总​​是得到同样的错误 JSON

  {
  code：200，
  数据： {
    消息：
      {
        emailSender：[e-mail]，
        国code：空，
        emailSenderReply：空，
        rejectedReason：空，
        messageReplySenderMessageDeleted：空，
        lastNameReceiver：空，
        wpMessagesRatingReplyId：空，
        wpMessagesRatingRating：空，
        countryMemberId：143，
        phoneSenderReply：空，
        messageReplyReceiverMessageDeleted：空，
        readStatus：未读，
        phoneReceiverReply：空，
        membersSenderUid：m8692031，
        wpMessagesRequestTitle：Fazzzzzz，
        头衔：Fazzzzzz
        countryTitle：空，
        emailReceiver：空，
        firstNameReceiverReply：空，
        ID：1288，
        messageReplyId：空，
        membersReceiverUid：m1000002，
        时间：2014年12月28号十四时32分09秒，
        wpMessagesRequestCategoryId：4，
        lastNameReceiverReply：空，
        lastNameSender：DSAD，
        phoneReceiver：空，
        状态：没有答案，
        messageReplyReceiver：空，
        messageReplyStatus：空，
        memberReceiverRole：管理，
        isConsultant：1，
        roleReplyReceiver：空，
        wpMesssagesRequestCategoriesSystemName：订单，
        lastNameSenderReply：空，
        memberSenderRole：会员，
        wpMesssagesRequestCategoriesName：订单，
        requestMessage：1101，
        wpMessagesRequestPriority：中间，
        messageReplyTime：空，
        消息：OLOLO
        wpMessagesRequestCountryId：空，
        发件人：4481，
        firstNameReceiver：空，
        messageReplyMessage：空，
        firstNameSender：asdas，
        firstNameSenderReply：空，
        emailReceiverReply：空，
        roleReplySender：空，
        messageReplySender：空，
        wpMessagesRequestProductId：空，
        接收器：4364，
        isMessageForwarded：0，
        wpMessagesRequestStatus：不取，
        phoneSender：2（342）-4-23-42
        wpMessagesRequestMessage：OLOLO
      }
    ]
  }
}
 

和我一直运行到错误：

 预计BEGIN_ARRAY但BEGIN_OBJECT第3行第12列
 

在我的日志指向该行的错误：

  GSON GSON =新GsonBuilder（）创建（）。
主力主攻= gson.fromJson（一，Main.class）;
 

下面是我的POJO

 静态类主要{
        INT code;
        布尔的错误;
        名单＆lt;数据＆GT;数据;
    }
    静态类数据{
        Enteties消息;
    }
    静态类Enteties {
        字符串msg_title;
        字符串msg_time;
        INT MSG_ID;
        字符串msg_status;
        @覆盖
        公共字符串的toString（）{
            返回msg_title ++ msg_time ++ MSG_ID ++ msg_status;
        }
    }
 

解决方案

您主要类有数据为列表。您的JSON有它作为一个对象。类型需要匹配。如果你希望只1中的数据为主，不要使用名单。如果您希望1个或多个DATAS，使code产生的数据发下来的数组（即使该数组只中有1对象）。

I freshly started with gson and i am trying to parse a JSON string which starts as an object and always get the same error JSON

{
  "code": 200, 
  "data": {
    "messages": [
      {
        "emailSender": "[e-mail]", 
        "countryCode": null, 
        "emailSenderReply": null, 
        "rejectedReason": null, 
        "messageReplySenderMessageDeleted": null, 
        "lastNameReceiver": null, 
        "wpMessagesRatingReplyId": null, 
        "wpMessagesRatingRating": null, 
        "countryMemberId": 143, 
        "phoneSenderReply": null, 
        "messageReplyReceiverMessageDeleted": null, 
        "readStatus": "unread", 
        "phoneReceiverReply": null, 
        "membersSenderUid": "m8692031", 
        "wpMessagesRequestTitle": "Fazzzzzz", 
        "title": "Fazzzzzz", 
        "countryTitle": null, 
        "emailReceiver": null, 
        "firstNameReceiverReply": null, 
        "id": 1288, 
        "messageReplyId": null, 
        "membersReceiverUid": "m1000002", 
        "time": "2014-12-28 14:32:09", 
        "wpMessagesRequestCategoryId": 4, 
        "lastNameReceiverReply": null, 
        "lastNameSender": "dsad", 
        "phoneReceiver": null, 
        "status": "unanswered", 
        "messageReplyReceiver": null, 
        "messageReplyStatus": null, 
        "memberReceiverRole": "admin", 
        "isConsultant": 1, 
        "roleReplyReceiver": null, 
        "wpMesssagesRequestCategoriesSystemName": "orders", 
        "lastNameSenderReply": null, 
        "memberSenderRole": "member", 
        "wpMesssagesRequestCategoriesName": "Orders", 
        "requestMessage": 1101, 
        "wpMessagesRequestPriority": "middle", 
        "messageReplyTime": null, 
        "message": "OLOLO", 
        "wpMessagesRequestCountryId": null, 
        "sender": 4481, 
        "firstNameReceiver": null, 
        "messageReplyMessage": null, 
        "firstNameSender": "asdas", 
        "firstNameSenderReply": null, 
        "emailReceiverReply": null, 
        "roleReplySender": null, 
        "messageReplySender": null, 
        "wpMessagesRequestProductId": null, 
        "receiver": 4364, 
        "isMessageForwarded": 0, 
        "wpMessagesRequestStatus": "not-taken", 
        "phoneSender": "2(342)-4-23-42", 
        "wpMessagesRequestMessage": "OLOLO"
      }
    ]
  }
}

and I keep running into the error:

Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 3 column 12

The error in my log points to this line:

Gson gson = new GsonBuilder().create();
Main main=gson.fromJson(a, Main.class);

Here is my pojo

static class Main{
        int code;
        boolean error;
        List<Data> data;
    }
    static class Data{
        Enteties messages;
    }
    static class Enteties{
        String msg_title;
        String msg_time;
        int msg_id;
        String msg_status;
        @Override
        public String toString(){
            return msg_title+" "+msg_time+" "+msg_id+" "+msg_status;
        }
    }

解决方案

Your Main class has Data as a list. Your JSON has it as an object. The types need to match. If you expect only 1 data in main, do not use a list. If you expect 1 or more datas, make the code that generates the data send down an array (even if that array only has 1 object in it).

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