枚举的序列化结果是int

Question

当我做一个GET请求来检索我的person列表时，枚举(Title)被转换成整数:

class Person {
public Title PersonTitle{ get; set;}
public string Name { get; set;}

}
enum Title {
STUDENT,
TEACHER,
DIRECTOR
}

假设我们有以下情况:

Person first = new Person(){
PersonTitle = Title.STUDENT,
Name = "Dave"
}

这将导致以下JSON:

[
{
"Name" : "Dave",
"PersonTitle" : 1,
}
]

如何获得枚举的实际值(在本例中为STUDENT) ?

Answer 1

唯一需要修改的代码是:

前:

public enum Title {
STUDENT,
TEACHER,
DIRECTOR
}

>:

using using System.Text.Json.Serialization;
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum Title {
STUDENT,
TEACHER,
DIRECTOR
}

现在响应看起来像:

[
{
"Name" : "Dave",
"PersonTitle" : "Student",
}
]

Answer 2

您需要为JSON序列化器添加适当的转换器。

System.Text.Json:

• 使用JsonStringEnumConverter类

Json.NET:

• 使用StringEnumConverter类

Answer 3

可以设置JsonConverterAttribute

class Person {
[JsonConverter(typeof(StringEnumConverter))]
public Title PersonTitle{ get; set;}
public string Name { get; set;}

}

用EnumMemberAttribute更新枚举

enum Title {
[EnumMember(Value = "Student")]
STUDENT,
[EnumMember(Value = "Teacher")]
TEACHER,
[EnumMember(Value = "Director")]
DIRECTOR
}