我正在尝试对资产使用FreshService API，获取资产列表将返回JSON，如下所示。请注意，“ levelfield_values”内部的属性的ID附加在其属性名称的末尾。
我正在尝试为所有资产提取“ license_expiry_date”，但是由于名称随每个项目而变化，因此转换为对象以提取该字段时遇到问题。有什么建议吗？
{"config_item": {"agent_id": 215,
"asset_tag": batch_2017,
"assigned_on": "2014-07-18T03:54:18+05:30",
"ci_type_id": 3,
"created_at": "2014-07-25T14:25:04+05:30",
"deleted": false,
"department_id": 4,
"depreciation_id": null,
"description": null,
"disabled": false,
"display_id": 113,
"expiry_notified": false,
"id": 113,
"impact": 3,
"location_id": 21,
"name": "windows 7",
"salvage": null,
"trashed": false,
"updated_at": "2014-07-25T14:25:04+05:30",
"user_id": 214,
"department_name": "Finance",
"used_by": "Rachel",
"business_impact": "Medium",
"agent_name": "Andrea",
"levelfield_values": {
"product_3": 100,
"vendor_3": 43,
"cost_3": 4000,
"license_validity_3": 24,
"installation_date_3": "2014-07-25T14:25:04+05:30",
"license_expiry_date_3": "2016-07-25T00:00:00+05:30",
"license_key_3": "234_423_543_534",
"version_3": 2,
"license_type_3": "commercial",
"installed_machine_3": "Andrea’s computer",
"installation_path_3": null,
"last_audit_date_3": "2014-07-25T14:25:04+05:30"
},
"ci_type_name": "Software",
"product_name": "windows_os",
"vendor_name": "micosoft",
"state_name": null,
"location_name": "America" } }
答案 0 :(得分：2)
您可以这样做
JsonConvert.DeserializeObject<JObject>(jsonString)["config_item"]["levelfield_values"]
.ToObject<JObject>()
.Properties()
.FirstOrDefault(x => x.Name.ToLower().Contains("license_validity"));
基本上是你；
config_item levelfield_values levelfield_values）license_validity的属性答案 1 :(得分：1)
Json的示例很糟糕而且不正确，但是..这是使序列化无缝化的方式。
我最初使用Visual Studio粘贴特殊语言来编写课程。
示例或fiddle：
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Linq;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
var example = new Config
{
config_item = new Config_Item
{
LevelfieldValuesParshed = new CleanLevelfield_Values
{
Id = 2,
product = 1232
}
}
};
var serialized = JsonConvert.SerializeObject(example); // should have "product_2" : 2 inside
// VOILA deserialization with property parsing in a clean object
var deserialzed = JsonConvert.DeserializeObject<Config>(serialized);
if (example.config_item.LevelfieldValuesParshed.Id != deserialzed.config_item.LevelfieldValuesParshed.Id ||
example.config_item.LevelfieldValuesParshed.product != deserialzed.config_item.LevelfieldValuesParshed.product)
{
throw new Exception("Impossible to happen!!!");
}
}
}
public class Config
{
public Config_Item config_item { get; set; }
}
public class Config_Item
{
public int agent_id { get; set; }
public string asset_tag { get; set; }
public DateTime assigned_on { get; set; }
public int ci_type_id { get; set; }
public DateTime created_at { get; set; }
public bool deleted { get; set; }
public int department_id { get; set; }
public object depreciation_id { get; set; }
public object description { get; set; }
public bool disabled { get; set; }
public int display_id { get; set; }
public bool expiry_notified { get; set; }
public int id { get; set; }
public int impact { get; set; }
public int location_id { get; set; }
public string name { get; set; }
public object salvage { get; set; }
public bool trashed { get; set; }
public DateTime updated_at { get; set; }
public int user_id { get; set; }
public string department_name { get; set; }
public string used_by { get; set; }
public string business_impact { get; set; }
public string agent_name { get; set; }
// Regenerative property with backing filed => _levelfieldValuesParshed
[JsonIgnore] // Ignore property at serialization
public CleanLevelfield_Values LevelfieldValuesParshed
{
get
{
if (_levelfieldValuesParshed == null)
{
if (_levelfield_values != null) // if null everything is null
{
var propsByName = (IDictionary<string, object>)_levelfield_values; // Expando Object to dictionary
var product = propsByName.Keys.FirstOrDefault(x => x.StartsWith("product_", StringComparison.InvariantCultureIgnoreCase)); // user first to fail if not found, it can be smarter but it works
if (!string.IsNullOrEmpty(product))// hurray we know the id
{
if (int.TryParse(product.Replace("product_", ""), out int id)) // C# 7
{
// Cleaner code can be written (generic method to set get object props with reflection)
_levelfieldValuesParshed = new CleanLevelfield_Values
{
Id = id
};
_levelfieldValuesParshed.product = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"product_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToInt32(propsByName.First(x => x.Key.Equals($"product_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : 0;
_levelfieldValuesParshed.vendor = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"vendor_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToInt32(propsByName.First(x => x.Key.Equals($"vendor_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : 0;
_levelfieldValuesParshed.cost = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"cost_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToInt32(propsByName.First(x => x.Key.Equals($"cost_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : 0;
_levelfieldValuesParshed.license_validity = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"license_validity_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToInt32(propsByName.First(x => x.Key.Equals($"license_validity_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : 0;
_levelfieldValuesParshed.installation_date = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"installation_date_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToDateTime(propsByName.First(x => x.Key.Equals($"installation_date_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : DateTime.MinValue;
_levelfieldValuesParshed.license_expiry_date = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"license_expiry_date_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToDateTime(propsByName.First(x => x.Key.Equals($"license_expiry_date_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : DateTime.MinValue;
_levelfieldValuesParshed.license_key = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"license_key_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToString(propsByName.First(x => x.Key.Equals($"license_key_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : string.Empty;
_levelfieldValuesParshed.version = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"version_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToInt32(propsByName.First(x => x.Key.Equals($"version_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : 0;
_levelfieldValuesParshed.license_type = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"license_type_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToString(propsByName.First(x => x.Key.Equals($"license_type_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : string.Empty;
_levelfieldValuesParshed.installed_machine = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"installed_machine_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToString(propsByName.First(x => x.Key.Equals($"installed_machine_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : string.Empty;
_levelfieldValuesParshed.installation_path = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"installation_path_{id}", StringComparison.InvariantCultureIgnoreCase)))
? propsByName.First(x => x.Key.Equals($"installation_path_{id}", StringComparison.InvariantCultureIgnoreCase)).Value : new object();
_levelfieldValuesParshed.last_audit_date = !string.IsNullOrEmpty(propsByName.Keys.FirstOrDefault(x => x.Equals($"last_audit_date_{id}", StringComparison.InvariantCultureIgnoreCase)))
? Convert.ToDateTime(propsByName.First(x => x.Key.Equals($"last_audit_date_{id}", StringComparison.InvariantCultureIgnoreCase)).Value) : DateTime.MinValue;
}
}
}
}
return _levelfieldValuesParshed;
}
set
{
_levelfieldValuesParshed = value;
_levelfield_values = null;
}
}
private CleanLevelfield_Values _levelfieldValuesParshed;
// Regenerative Expando property with backing field => _levelfield_values
public System.Dynamic.ExpandoObject levelfield_values
{
get
{
if (_levelfieldValuesParshed != null)
{
_levelfield_values = new ExpandoObject();
// Cleaner code can be written with a foreach (generic method to set get object props with reflection)
var keValuesPairs = (IDictionary<string, object>)_levelfield_values;
keValuesPairs.Add($"product_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.product);
keValuesPairs.Add($"vendor_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.vendor);
keValuesPairs.Add($"cost_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.cost);
keValuesPairs.Add($"license_validity_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.license_validity);
keValuesPairs.Add($"installation_date_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.installation_date);
keValuesPairs.Add($"license_expiry_date_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.license_expiry_date);
keValuesPairs.Add($"license_key_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.license_key);
keValuesPairs.Add($"version_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.version);
keValuesPairs.Add($"license_type_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.license_type);
keValuesPairs.Add($"installed_machine_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.installed_machine);
keValuesPairs.Add($"installation_path_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.installation_path);
keValuesPairs.Add($"last_audit_date_{_levelfieldValuesParshed.Id}", _levelfieldValuesParshed.last_audit_date);
return _levelfield_values;
}
return null;
}
set
{
_levelfield_values = value;
_levelfieldValuesParshed = null; // remove cleaned object, it will regenerated itself when opened
}
}
private ExpandoObject _levelfield_values;
public string ci_type_name { get; set; }
public string product_name { get; set; }
public string vendor_name { get; set; }
public object state_name { get; set; }
public string location_name { get; set; }
}
public class CleanLevelfield_Values
{
public int Id { get; set; }
public int product { get; set; }
public int vendor { get; set; }
public int cost { get; set; }
public int license_validity { get; set; }
public DateTime installation_date { get; set; }
public DateTime license_expiry_date { get; set; }
public string license_key { get; set; }
public int version { get; set; }
public string license_type { get; set; }
public string installed_machine { get; set; }
public object installation_path { get; set; }
public DateTime last_audit_date { get; set; }
}
}