我有一個 JSON 檔案，它有一個名為 craftingrequirements 的屬性。該屬性可以是物件或陣列，在這種情況下處理資料的最佳方式是什么？
目前我已將屬性的型別設定為物件，否則會出現錯誤。
"weapon": [
{
"@uniquename": "T3_2H_QUARTERSTAFF",
"craftingrequirements": [
{
"@silver": "0",
"@time": "5",
"@craftingfocus": "16085",
},
{
"@silver": "0",
"@time": "5",
"@craftingfocus": "16085"
}
]
},
{
"@uniquename": "T6_2H_QUARTERSTAFF_AVALON",
"craftingrequirements": {
"@silver": "0",
"@time": "1",
"@craftingfocus": "980"
}
}
]
那也沒用。。
var craftingRequirement = equipmentItem.CraftingRequirements as CraftingRequirements;
if (craftingRequirement == null)
{
var craftingRequirements = equipmentItem.CraftingRequirements as List<CraftingRequirements>;
}
if (equipmentItem.CraftingRequirements is CraftingRequirements)
{
}
else if (equipmentItem.CraftingRequirements is List<CraftingRequirements>)
{
}
我使用 .net / C# 并沒有找到一個好的解決方案。
uj5u.com熱心網友回復：
將 Nuget-Package 'Newtonsoft.Json' 添加到您的專案并嘗試此操作。您可能需要進行一些微調，但您應該明白這一點。
using Newtonsoft.Json.Linq;
using Newtonsoft.Json;
using System;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
string json = @"{
'weapon': [
{
'@uniquename': 'T3_2H_QUARTERSTAFF',
'craftingrequirements': [
{
'@silver': '0',
'@time': '5',
'@craftingfocus': '16085',
},
{
'@silver': '0',
'@time': '5',
'@craftingfocus': '16085'
}
]
},
{
'@uniquename': 'T6_2H_QUARTERSTAFF_AVALON',
'craftingrequirements': {
'@silver': '0',
'@time': '1',
'@craftingfocus': '980'
}
}
]
}";
JObject o = JObject.Parse(json);
foreach (var w in o["weapon"])
{
var r2 = w["craftingrequirements"];
if (r2 is JArray)
{
var res = JsonConvert.DeserializeObject<CraftingRequirements[]>(r2.ToString ().Replace("@", "") );
}
else
{
var res = JsonConvert.DeserializeObject<CraftingRequirements>(r2.ToString().Replace("@", ""));
}
}
}
}
public class CraftingRequirements
{
public string silver { get; set; }
public string time { get; set; }
public string craftingfocus { get; set; }
}
}
uj5u.com熱心網友回復：
只為在乎的人。還有其他嵌套物件和陣列。
這是我目前有效的解決方案。
也許有人可以用它做點什么，然后只需要調整。
public class CraftingRequirementsToCraftingRequirementsList : JsonConverter<List<CraftingRequirements>>
{
public override List<CraftingRequirements> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
if (reader.TokenType != JsonTokenType.StartObject && reader.TokenType != JsonTokenType.StartArray)
{
throw new JsonException("JSON payload expected to start with StartObject or StartArray token.");
}
var craftingRequirements = new List<CraftingRequirements>();
try
{
craftingRequirements = reader.TokenType switch
{
JsonTokenType.StartArray => SetCraftingRequirementsArray(ref reader),
JsonTokenType.StartObject => SetCraftingRequirementsObject(ref reader),
_ => craftingRequirements
};
}
catch (Exception)
{
return craftingRequirements;
}
return craftingRequirements;
}
public override void Write(Utf8JsonWriter writer, List<CraftingRequirements> value, JsonSerializerOptions options)
{
throw new NotImplementedException();
}
private static List<CraftingRequirements> SetCraftingRequirementsArray(ref Utf8JsonReader reader)
{
var craftingRequirements = new List<CraftingRequirements>();
var craftingRequirement = new CraftingRequirements();
var startDepth = reader.CurrentDepth;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndArray && reader.CurrentDepth == startDepth)
{
return craftingRequirements;
}
if (reader.TokenType == JsonTokenType.StartObject)
{
craftingRequirement = new CraftingRequirements();
}
if (reader.TokenType == JsonTokenType.EndObject)
{
craftingRequirements.Add(craftingRequirement);
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
switch (propertyName)
{
case "@silver":
reader.Read();
craftingRequirement.Silver = reader.GetString();
break;
case "@time":
reader.Read();
craftingRequirement.Time = reader.GetString();
break;
case "@craftingfocus":
reader.Read();
craftingRequirement.CraftingFocus = reader.GetString();
break;
case "craftresource":
reader.Read();
craftingRequirement.CraftResource = reader.TokenType switch
{
JsonTokenType.StartArray => SetCraftResourceArray(ref reader),
JsonTokenType.StartObject => SetCraftResourceObject(ref reader),
_ => craftingRequirement.CraftResource
};
break;
case "@swaptransaction":
reader.Read();
craftingRequirement.SwapTransaction = reader.GetString();
break;
case "playerfactionstanding":
reader.Read();
craftingRequirement.PlayerFactionStanding = SetPlayerFactionStanding(ref reader);
break;
case "currency":
reader.Read();
craftingRequirement.Currency = SetCurrency(ref reader);
break;
case "@amountcrafted":
reader.Read();
craftingRequirement.AmountCrafted = reader.GetString();
break;
case "@forcesinglecraft":
reader.Read();
craftingRequirement.ForceSingleCraft = reader.GetString();
break;
}
}
}
return craftingRequirements;
}
private static List<CraftingRequirements> SetCraftingRequirementsObject(ref Utf8JsonReader reader)
{
var craftingRequirements = new List<CraftingRequirements>();
var craftingRequirement = new CraftingRequirements();
var startDepth = reader.CurrentDepth;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndObject && reader.CurrentDepth == startDepth)
{
craftingRequirements.Add(craftingRequirement);
return craftingRequirements;
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
switch (propertyName)
{
case "@silver":
reader.Read();
craftingRequirement.Silver = reader.GetString();
break;
case "@time":
reader.Read();
craftingRequirement.Time = reader.GetString();
break;
case "@craftingfocus":
reader.Read();
craftingRequirement.CraftingFocus = reader.GetString();
break;
case "craftresource":
reader.Read();
craftingRequirement.CraftResource = reader.TokenType switch
{
JsonTokenType.StartArray => SetCraftResourceArray(ref reader),
JsonTokenType.StartObject => SetCraftResourceObject(ref reader),
_ => craftingRequirement.CraftResource
};
break;
case "@swaptransaction":
reader.Read();
craftingRequirement.SwapTransaction = reader.GetString();
break;
case "playerfactionstanding":
reader.Read();
craftingRequirement.PlayerFactionStanding = SetPlayerFactionStanding(ref reader);
break;
case "currency":
reader.Read();
craftingRequirement.Currency = SetCurrency(ref reader);
break;
case "@amountcrafted":
reader.Read();
craftingRequirement.AmountCrafted = reader.GetString();
break;
case "@forcesinglecraft":
reader.Read();
craftingRequirement.ForceSingleCraft = reader.GetString();
break;
}
}
}
return craftingRequirements;
}
private static List<CraftResource> SetCraftResourceArray(ref Utf8JsonReader reader)
{
var craftResources = new List<CraftResource>();
var craftResource = new CraftResource();
var startDepth = reader.CurrentDepth;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndArray && reader.CurrentDepth == startDepth)
{
return craftResources;
}
if (reader.TokenType == JsonTokenType.StartObject)
{
craftResource = new CraftResource();
}
if (reader.TokenType == JsonTokenType.EndObject)
{
craftResources.Add(craftResource);
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
switch (propertyName)
{
case "@uniquename":
reader.Read();
craftResource.UniqueName = reader.GetString();
break;
case "@count":
reader.Read();
if (int.TryParse(reader.GetString(), out var count))
{
craftResource.Count = count;
break;
}
craftResource.Count = 0;
break;
case "@maxreturnamount":
reader.Read();
craftResource.MaxReturnAmount = reader.GetString();
break;
case "@enchantmentlevel":
reader.Read();
craftResource.EnchantmentLevel = reader.GetString();
break;
}
}
}
return craftResources;
}
private static List<CraftResource> SetCraftResourceObject(ref Utf8JsonReader reader)
{
var craftResources = new List<CraftResource>();
var newCraftResource = new CraftResource();
var startDepth = reader.CurrentDepth;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndObject && reader.CurrentDepth == startDepth)
{
craftResources.Add(newCraftResource);
return craftResources;
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
switch (propertyName)
{
case "@uniquename":
reader.Read();
newCraftResource.UniqueName = reader.GetString();
break;
case "@count":
reader.Read();
if (int.TryParse(reader.GetString(), out var count))
{
newCraftResource.Count = count;
break;
}
newCraftResource.Count = 0;
break;
case "@maxreturnamount":
reader.Read();
newCraftResource.MaxReturnAmount = reader.GetString();
break;
case "@enchantmentlevel":
reader.Read();
newCraftResource.EnchantmentLevel = reader.GetString();
break;
}
}
}
return craftResources;
}
private static PlayerFactionStanding SetPlayerFactionStanding(ref Utf8JsonReader reader)
{
var playerFactionStanding = new PlayerFactionStanding();
var startDepth = reader.CurrentDepth;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndObject && reader.CurrentDepth == startDepth)
{
return playerFactionStanding;
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
switch (propertyName)
{
case "@faction":
reader.Read();
playerFactionStanding.Faction = reader.GetString();
break;
case "@minstanding":
reader.Read();
playerFactionStanding.MinStanding = reader.GetString();
break;
}
}
}
return playerFactionStanding;
}
private static Currency SetCurrency(ref Utf8JsonReader reader)
{
var currency = new Currency();
var startDepth = reader.CurrentDepth;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndObject && reader.CurrentDepth == startDepth)
{
return currency;
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
switch (propertyName)
{
case "@uniquename":
reader.Read();
currency.UniqueName = reader.GetString();
break;
case "@amount":
reader.Read();
currency.Amount = reader.GetString();
break;
}
}
}
return currency;
}
}
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