Question

我使用下面的代码反序列化了一个JsonResponse。

var data = (JObject)JsonConvert.DeserializeObject(jsonResponse);

我得到了响应字符串，看起来像这样

{  
   "results":[  
      {  
         "url":"tickets/2063.json",
         "id":20794,
         "subject":"Device not working",
         "created_date": "2018-01-10T13:03:23Z",
         "custom-fields":[  
            {  
               "id":25181002,
               "value":34534
            },
            {  
               "id":2518164,
               "value":252344
            }
         ]
      }
   ]
}

我的目标是读取此json对象数组中的某些字段并插入到数据库中。我需要的字段是id，subject，created_date，member_id。

成员ID是自定义字段的一部分。 member_id是id = 2518164的值。我用List来存储这个，如果List或Dictionary更适合这种情况，你能不能告诉我。如何实现字典

var data = (JObject)JsonConvert.DeserializeObject(jsonResponse);
    var tickets = data["results"].ToList();
     foreach (var ticketItem in tickets){
        Int64? ticketFormId = ticketItem["id"].Value<Int64>();
        string subject = ticketItem["subject"].Value<string>();
        DateTime createdDate = ticketItem["created_date"].Value<DateTime>();

       //Do you think for the next step a dictionary is better or a List is better, since I want to search for a particular id=2518164
        var fieldsList = ticketItem["fields"].ToList();
        foreach(var fieldItem in fieldList){
            Int64? fieldId = fieldItem["id"].Value<Int64>();
            if(fieldId!=null && fieldId == 2518164){
                memberId = fieldItem["value"].Value<string>();
            }
        }
 }

Answer 1

如果您要将它们全部插入数据库，请将它们存储到列表中。字典仅对通过键搜索项目很有用。

您还可以使用linq以更简单的方式处理json：

var tickets =   JObject.Parse(jsonResponse)["results"]
    .Select(ticket => new
    {
        Id = (long)ticket["id"],
        Subject = (string)ticket["subject"],
        CreatedDate = (DateTime)ticket["created_date"],
        MemberId = (long)ticket["custom-fields"]
            .FirstOrDefault(cf => (int)cf["id"] == 2518164)
            ?["value"],
    })
    .ToList();

搜索Json对象数组 - 列表与字典

1 个答案: