写字典<string, dynamic>到 JSON 文件

Question

If I have a Dictionary<string, dynamic> where the keys use dot notation, is there an easy way to convert to JSON with JSON.NET? For example:

Dictionary<string, dynamic> records = new Dictionary<string, dynamic>
{
    { "Name.First", "John" },
    { "Name.Last", "Doe" },
    { "ContactInfo", new ContactInfo {
        Phone = "555-555-5555",
        Foo = 999,
        Bar = true
    } }
};

Desired JSON would be:

{
    "name": {
        "first": "John",
        "last": "Doe"
    },
    "contactInfo": {
        "phone": "555-555-5555",
        "foo": 999,
        "bar": true
    }
}

Answer 1

So, there are many ways to do this. However, the main problem is the design choice of the dictionary with dynamic values, without further explanation this seems very suspect.

However, assuming you know best. You would have to project your data to another form, or write some sort of converter one way or the other. I chose an anonymous type , since your data is relatively simple.

var temp = new
{
   name = new
   {
      first = records["Name.First"],
      last = records["Name.Last"],
   },
   ContactInfo = records["ContactInfo"]
};

// this is just one way to get your `ContactInfo` camel case, there are others
var contractResolver = new DefaultContractResolver
{
   NamingStrategy = new CamelCaseNamingStrategy()
};

var json = JsonConvert.SerializeObject(temp, new JsonSerializerSettings()
{
   ContractResolver = contractResolver,
   Formatting = Formatting.Indented
});


Console.WriteLine(json); 

Output

{
  "name": {
    "first": "John",
    "last": "Doe"
  },
  "contactInfo": {
    "phone": "555-555-5555",
    "foo": 999,
    "bar": true
  }
}

_{Note : This answer is not optimal, I would consider revaluating your choices of data structure}

Answer 2

Use the JsonSerializer. You first need to import it

using Newtonsoft.Json;

Then use the following code to get the JSON string

String json = JsonConvert.SerializeObject(records);