我從遵循以下結構的公共 API 接收到 JSON。
[
{
"ID": "12345",
"company": [
{
"contract_ID": "abc5678",
"company": [
{
"company_name": "HelloWorld",
"company_logo": "HW",
"invested": "2000"
}
]
},
{
"contract_ID": "67891",
"company": [
{
"company_name": "GoodBye",
"company_logo": "GB",
"invested": "500"
}
]
},
{
"contract_ID": "32658",
"company": [
{
"company_name": "YesNo",
"company_logo": "YN",
"invested": "1500"
}
]
}
]
}
]
我嘗試了幾種不同的決議方法，無論是 JTokens/JArrays 還是各種類。類似下面的內容允許我訪問第一組值（company_name、company_logo、invested），但我無法遍歷查找其他兩個值。
//receiving the json data
var responseString = await response.Content.ReadAsStringAsync();
var fullJSON = JsonConvert.DeserializeObject(responseString);
Debug.Log(fullJSON);
//trying to parse it down to just the data I need
JToken token = JToken.Parse("{\"root\":" responseString "}");
Debug.Log(token);
JArray assets = (JArray)token.SelectToken("root[0].assets");
Debug.Log(assets);
JToken dig = JToken.Parse("{\"root\":" assets "}");
Debug.Log(dig);
JArray assetsNested = (JArray)dig.SelectToken("root[0].assets");
Debug.Log(assetsNested);
我的目標是提取contract_ID，然后是關聯的company_name、company_logo 和投資專案。例如，abc5678、HelloWorld、HW 和 2000 將是所需的三個資料集之一。
uj5u.com熱心網友回復：
正確反序列化并保持代碼可維護的最簡單方法是使用具體類。例如：
public sealed class Company
{
[JsonProperty("contract_ID")]
public string ContractID { get; set; }
[JsonProperty("company")]
public List<CompanyDefinition> CompanyDefinitions { get; set; }
}
public sealed class CompanyDefinition
{
[JsonProperty("company_name")]
public string CompanyName { get; set; }
[JsonProperty("company_logo")]
public string CompanyLogo { get; set; }
[JsonProperty("invested")]
public string Invested { get; set; }
}
public sealed class RootCompany
{
[JsonProperty("ID")]
public string ID { get; set; }
[JsonProperty("company")]
public List<Company> Company { get; set; }
}
然后，您只需反序列化。例如，如果您從檔案中提取，您可以這樣做：
using(var sr = new StreamReader(@"c:\path\to\json.json"))
using(var jtr = new JsonTextReader(sr))
{
var result = new JsonSerializer().Deserialize<RootCompany[]>(jtr);
foreach(var r in result)
{
Console.WriteLine($"Company ID: {r.ID}");
foreach(var c in r.Company)
{
Console.WriteLine($"ContractID: {c.ContractID}");
foreach(var d in c.CompanyDefinitions)
{
Console.WriteLine($"Name: {d.CompanyName}");
Console.WriteLine($"Invested: {d.Invested}");
Console.WriteLine($"Company Logo: {d.CompanyLogo}");
}
}
}
}
當您的模型發生變化時，您不必逐行挖掘難以閱讀的令牌選擇代碼。您只需更新模型。
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