加载JSON文件会导致序列化错误

Question

我有JSON文件,

[
  {
    "applicationConfig": {
      "Name": "Name1",
      "Site": "Site1"
    },
    "pathConfig": {
      "SourcePath": "C:\\Temp\\Outgoing1",
      "TargetPath": "C:\\Files"
    },
    "credentialConfig": {
      "Username": "test1",
      "password": "super1"
    }
  },
  {
    "applicationConfig": {
      "Name": "Name2",
      "Site": "Site2"
    },
    "pathConfig": {
      "SourcePath": "C:\\Temp\\Outgoing2",
      "TargetPath": "C:\\Files"
    },
    "credentialConfig": {
      "Username": "test2",
      "password": "super2"
    }
  }
]

以下是C#类结构,

public class Configurations
{
    public List<ApplicationConfig> ApplicationConfigs { get; set; }
    public List<PathConfig> PathConfigs { get; set; }
    public List<CredentialConfig> CredentialConfigs { get; set; }
}


public class ApplicationConfig
{
    public string Name { get; set; }
    public string Site { get; set; }
}

public class PathConfig
{
    public string SourcePath { get; set; }
    public string TargetPath { get; set; }
}

public class CredentialConfig
{
    public string Username { get; set; }
    public string password { get; set; }
}

现在尝试加载JSON并获得低于错误,

using (var streamReader = new StreamReader(@"./Config.json"))
        {
           var X = JsonConvert.DeserializeObject<Configurations>(streamReader.ReadToEnd());
        }

$ exception {"无法将当前JSON数组(例如[1,2,3])反序列化为'ConsoleApp8.Configurations'类型,因为该类型需要一个JSON对象(例如{\"name \":\"value \"})正确反序列化.\ r \n要修复此错误,请将JSON更改为JSON对象(例如{\"name \":\"value \"})或将反序列化类型更改为数组或实现集合的类型接口(例如ICollection,IList),如List,可以从JSON数组反序列化.JsonArrayAttribute也可以添加到类型中,以强制它从JSON数组反序列化.\ r \n路由'',第1行,位置1." } Newtonsoft.Json.JsonSerializationException

还有什么我需要序列化？

Answer 1

你的JSON代表一个数组 - 虽然结束[应该是一个].但是你试图将它序列化为一个Configurations对象.此外,您似乎期望应用程序配置,路径配置和凭证配置的单独数组 - 而您的JSON显示一个对象数组,每个对象都有三个.

我怀疑你想要:

public class Configuration
{
    [JsonProperty("applicationConfig")]
    ApplicationConfig ApplicationConfig { get; set; }

    [JsonProperty("pathConfig")]
    PathConfig PathConfig { get; set; }

    [JsonProperty("credentialConfig")]
    CredentialConfig CredentialConfig { get; set; }
}

// Other classes as before, although preferably with the password property more conventionally named

然后使用:

List<Configuration> configurations = 
    JsonConvert.DeserializeObject<List<Configuration>>(streamReader.ReadToEnd());

然后,您将拥有一个配置对象列表,每个配置对象都有三个"子配置"部分.