如何从谷歌API Json响应c#为变量赋值

Question

我正在尝试将异步 JSON 响应中的键值分配给变量，有问题的 JSON 键是"威胁类型"键。我正在查询谷歌的安全浏览 v4 API，我得到了很好的回应，问题是当我尝试将密钥分配给变量时，没有分配任何内容。这是我的代码：

public static async Task<string> CheckUrl( string Api_Key, string MyUrl)
{
safeBrowsing_panel i = new safeBrowsing_panel();
var service = new SafebrowsingService(new BaseClientService.Initializer
{
ApplicationName = "Link-checker",
ApiKey = Api_Key
});
var request = service.ThreatMatches.Find(new FindThreatMatchesRequest()
{
Client = new ClientInfo
{
ClientId = "Link-checker",
ClientVersion = "1.5.2"
},
ThreatInfo = new ThreatInfo()
{
ThreatTypes = new List<string> { "SOCIAL_ENGINEERING", "MALWARE" },
PlatformTypes = new List<string> { "ANY_PLATFORM" },
ThreatEntryTypes = new List<string> { "URL" },
ThreatEntries = new List<ThreatEntry>
{
new ThreatEntry
{
Url = MyUrl
}
}
}
});
var response = await request.ExecuteAsync();
string json = JsonConvert.SerializeObject(await request.ExecuteAsync());
string jsonFormatted = JToken.Parse(json).ToString(Formatting.Indented);
Console.WriteLine(jsonFormatted);
return jsonFormatted;
}

我创建了类来解析 json：

public class ThreatRes
{
public string threatType;
}
public class RootObjSB
{
public List<ThreatRes> matches;
}

我用：

string SB_Result = await CheckUrl("MyAPIKey", "Bad_URL");
RootObjSB obj = JsonConvert.DeserializeObject<RootObjSB>(SB_Result);

来自谷歌的 JSON 响应：

{
"matches": [
{
"cacheDuration": "300s",
"platformType": "ANY_PLATFORM",
"threat": {
"digest": null,
"hash": null,
"url": "http://badurl.com/",
"ETag": null
},
"threatEntryMetadata": null,
"threatEntryType": "URL",
"threatType": "SOCIAL_ENGINEERING",
"ETag": null
}
],
"ETag": null
}

我需要帮助。

Answer 1

所以我尝试使用JavaScriptSerializer它似乎工作得很好，我还重建了我的类来解析 JSON 响应上的所有属性。

重建的类：

public class Threat
{
public object digest { get; set; }
public object hash { get; set; }
public string url { get; set; }
public object ETag { get; set; }
}
public class Match
{
public string cacheDuration { get; set; }
public string platformType { get; set; }
public Threat threat { get; set; }
public object threatEntryMetadata { get; set; }
public string threatEntryType { get; set; }
public string threatType { get; set; }
public object ETag { get; set; }
}
public class RootObjSB
{
public List<Match> matches { get; set; }
public object ETag { get; set; }
}

我像这样反序列化它：

string SB_Result = await CheckUrl("MyAPIKey", "Bad_URL");
var obj = new JavaScriptSerializer().Deserialize<RootObjSB>(SB_Result);
string threat = obj.matches[0].threatType;
Console.WriteLine(threat);

我真的不知道为什么我尝试的第一个选项没有正确解析数据，但这就是我克服这个问题的方式。希望它能帮助任何经历同样事情的人