CamelCasePropertyNamesContractResolver ASP.Net Web API序列化字典键时未删除空格

在ASP.Net Web API中，可以使用CamelCasePropertyNamesContractResolver来序列化对象属性的名称为camelCase。但是默认情况下，它不会删除字典键中的空格。以下是一种解决方法，可以在序列化时删除字典键中的空格。

首先，您需要创建一个自定义的CamelCasePropertyNamesContractResolver子类，并覆盖CreateDictionaryContract方法。在这个方法中，您可以使用PropertyNameResolver属性来处理字典键。

using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System.Collections.Generic;

public class CustomCamelCasePropertyNamesContractResolver : CamelCasePropertyNamesContractResolver
{
    protected override JsonDictionaryContract CreateDictionaryContract(Type objectType)
    {
        var contract = base.CreateDictionaryContract(objectType);
        contract.DictionaryKeyResolver = ResolveDictionaryKey;
        return contract;
    }

    private string ResolveDictionaryKey(string dictionaryKey)
    {
        // 删除字典键中的空格
        return dictionaryKey.Replace(" ", string.Empty);
    }
}

然后，在使用JsonSerializerSettings配置JsonSerializer时，将CustomCamelCasePropertyNamesContractResolver作为ContractResolver赋值。

var settings = new JsonSerializerSettings
{
    ContractResolver = new CustomCamelCasePropertyNamesContractResolver()
};

var json = JsonConvert.SerializeObject(yourObject, settings);

使用这种方法，当对象序列化时，字典键中的空格将被删除。