c# - 如何反序列化 JSON 数组(平面)并忽略某些标记

Question

我有来自服务器的响应

 [{
  "sys_id": "******************************",
  "dv_model_id": "*****************",
  "due": "YYYY-MM-DD HH:mm:ss",
  "assigned_to": "1524s32a54dss412s121s",
  "dv_assigned_to": "username",
  "assigned_to.phone": "+12345678910",
  "assigned_to.email": "abc@a.c",
  "u_borrower_id": "fb36e45f0a12452004742183457e833b0",
  "dv_u_borrower_id": "antoherUserName",
  "u_borrower_id.phone": "+12345678910",
  "u_borrower_id.email": "abcf@a.c"
}
,{....}
,{....}]

我正在尝试将其反序列化为 List

public class Inventory
{
    public Inventory()
    {
        assigned_to = new User();
        u_borrower_wwid = new User();
    }

    public string sys_ID { get; set; }
    public string dv_model_id { get; set; }
    public DateTime due { get; set; }
    public string dv_assigned_to { get; set; }
    public User assigned_to { get; set; }
    public string dv_u_borrower_id { get; set; }
    public User u_borrower_id { get; set; }
}

现在，由于 JSON 包含 - "assigned_to": "1524s32a54dss412s121s"," 反序列化失败。 与 - ""u_borrower_id": "fb36e45f0a12452004742183457e833b0","相同。

你知道有什么方法可以忽略它们吗？或者从 JSON 中删除它们？ 我只需要对象的属性(“.phone”和“.email”)。

有什么想法吗？

Answer 1

我看到了很多解决方案:

---

修改您的 Inventory 对象(或创建一个新对象)，以便 json 可以完全反序列化，然后访问那里的值。

您的新对象和更新后的对象应如下所示:

public class InventoryJsonObject
{
    public string sys_id { get; set; }
    public string dv_model_id { get; set; }
    public string due { get; set; }
    public string assigned_to { get; set; }
    public string dv_assigned_to { get; set; }

    [JsonProperty("assigned_to.phone")]
    public string assigned_to_phone { get; set; }

    [JsonProperty("assigned_to.email")]
    public string assigned_to_email { get; set; }
    public string u_borrower_id { get; set; }
    public string dv_u_borrower_id { get; set; }

    [JsonProperty("u_borrower_id.phone")]
    public string u_borrower_id_phone { get; set; }

    [JsonProperty("u_borrower_id.email")]
    public string u_borrower_id_email { get; set; }
}

---

使用正则表达式从字符串中获取值。在这种情况下，您的正则表达式将是 "u_borrower_id\.phone": "(.*?)" 并且"u_borrower_id\.email": "(.*?)"

完整的正则表达式解决方案可能如下所示(假设每个对象都包含电话和电子邮件):

string phonePattern = "\"u_borrower_id\\.phone\": \"(.*?)\"";
string emailPattern = "\"u_borrower_id\\.email\": \"(.*?)\"";

Regex phoneRegex = new Regex(phonePattern);
var phoneMatches = phoneRegex.Matches(input);

Regex emailRegex = new Regex(emailPattern);
var emailMatches = emailRegex.Matches(input);

for (int i = 0; i < phoneMatches.Count; i++)
{
    string phoneMatch = phoneMatches[i].Groups[1].Value;
    string emailMatch = emailMatches[i].Groups[1].Value;
    // Now you can add them to any collection you desire
}

---

在 string 和 User 之间实现转换。 由于您的错误源于字符串 fb36e45f0a12452004742183457e833b0不能简单地转换为 User 对象，您必须实现转换。它看起来像这样:

public static implicit operator User(string _string)
{
    // This could be a DB lookup, or basically anything else
    return new User()
    {
        id = _string
    };
}