C# 使用JavaScriptSerializer将实体映射到JSON
我的实体是这样的:C# 使用JavaScriptSerializer将实体映射到JSON,c#,jquery,.net,asp.net,json,C#,Jquery,.net,Asp.net,Json,我的实体是这样的: class Address { public string Number { get; set; } public string Street { get; set; } public string City { get; set; } public string Country { get; set; } } class Person { public string Name { get; set; } publ
class Address
{
public string Number { get; set; }
public string Street { get; set; }
public string City { get; set; }
public string Country { get; set; }
}
class Person
{
public string Name { get; set; }
public int Age { get; set; }
public Address PostalAddress { get; set; }
}
Person newPerson =
new Person()
{
Name = "Kushan",
Age = 25,
PostalAddress =
new Address()
{
Number = "No 25",
Street = "Main Street",
City = "Matale",
Country = "Sri Lanka"
}
};
现在我想把这个newPerson对象映射成这样的JSON对象
{
"PER_NAME" : "Kushan",
"PER_AGE" : "25",
"PER_ADDRESS" : {
"ADD_NUMBER" : "No 25",
"ADD_STREET" : "Main Street",
"ADD_CITY" : "Matale",
"ADD_COUNTRY" : "Sri Lanka"
}
}
注:以上只是一个例子
我需要的是,我需要在序列化时自定义密钥。默认情况下,它将属性名称作为键。我不能更改属性名称。如何做到这一点
另外,是否可以更改JSON obj中键值对的显示顺序?您需要将
DataContract
属性添加到类中,并将DataMember
添加到属性中。将DataMemeber
属性的Name
属性设置为自定义属性名称,并将Order
属性设置为定义顺序
[DataContract]
public class Person
{
[DataMember(Name = "PER_NAME", Order = 1)]
public string Name { get; set; }
[DataMember(Name = "PER_AGE", Order = 2)]
public int Age { get; set; }
[DataMember(Name = "PER_ADDRESS", Order = 3)]
public Address PostalAddress { get; set; }
}
然后你可以这样做:
var newPerson = new Person()
{
Name = "Kushan",
Age = 25,
PostalAddress = new Address()
{
Number = "No 25",
Street = "Main Street",
City = "Matale",
Country = "Sri Lanka"
}
};
MemoryStream stream = new MemoryStream();
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Person));
ser.WriteObject(stream, newPerson);
要检查结果,请执行以下操作:
var result = Encoding.ASCII.GetString(stream.ToArray());
{"PER_NAME":"Kushan","PER_AGE":25,"PER_ADDRESS":{"ADD_NUMBER":"No 25","ADD_STREET":"Main Street","ADD_CITY":"Matale","ADD_COUNTRY":"Sri Lanka"}}
可以使用JavaScriptSerializer序列化匿名类型,因此可以尝试将对象投影到要序列化的形状中:
person.Select(s => new { PER_NAME = s.Name, PER_AGE = s.Age });
谢谢吉布森。。但是Alex的ans是最清楚的。。我接受了……)@AlexAza如果我想将
{“年龄”:25,“姓名”:“Kushan”,“邮资”:{“城市”:“Matale”,“国家”:“斯里兰卡”,“号码”:“25号”,“街道”:“大街”}}
映射到类中,那么这个问题需要JavaScriptSerializer,而不是DataContractJsonSerializer。我相信你的回答是误导性的,没有提供任何关于JavaScriptSerializer的相关信息。