JSON数据转对象！

[youzi520]

USER 对象

ID
NAME
SEX


前台传递了JSON数据{"ID":"1","NAME":"1","SEX":"1"}，{"ID":"2","NAME":"2","SEX":"2"}，{"ID":"3","NAME":"3","SEX":"3"}

后台我如何处理成3个USER对象？

[youzi520]

看了有将LIST对象列表转成JSON格式
但是JSON如何转成LIST对象！！

[orain]

试下　DataContractJsonSerializer.ReadObject(Stream)　这个方法。

[orain]

刚测试了下，代码如下：

static void Main(string[] args)
{
	Person[] People = {
		new Person(1, "A"),
		new Person(2, "B"),
		new Person(3, "C"),
		new Person(4, "D"),
		new Person(5, "E")
	};

	System.Runtime.Serialization.Json.DataContractJsonSerializer jsonFormator = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(Person[]));
	byte[] buff = new byte[1024];
	System.IO.Stream stream = new System.IO.MemoryStream(buff);
	jsonFormator.WriteObject(stream, People); // 序列化
	string str = System.Text.Encoding.UTF8.GetString(buff).TrimEnd('\0');			
	Console.WriteLine(str);
        // 反序列化
	System.IO.Stream rS = new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(str));
	Person[] persons = jsonFormator.ReadObject(rS) as Person[];
	Console.WriteLine(persons[2].Name);
}

[System.Runtime.Serialization.DataContract] //必须加这个属性
class Person
{
	[System.Runtime.Serialization.DataMember]　// 该属性注明要序列化的成员
	public int Id { get; set; }
	[System.Runtime.Serialization.DataMember]
	public string Name { get; set; }
	public Person(int id, string name)
	{
		Id = id;
		Name = name;
	}
}

[tabbycat]

JavaScriptSerializer

可以反序列化单个对象

.net 2.0 装AJAX

[jfd198512]

顶 LZ！！

[来风了]

<script>
var USER= [
{"ID":"1","NAME":"1","SEX":"1"},
{"ID":"2","NAME":"2","SEX":"2"},
{"ID":"3","NAME":"3","SEX":"3"}
];
alert(USER[0].Name); 1
alert(USER[1].Name); 2
alert(USER[2].Name); 3
</script>

[来风了]

[Quote=引用 2 楼 goghuaqiao 的回复:]
<script>
var USER= [
{"ID":"1","NAME":"1","SEX":"1"},
{"ID":"2","NAME":"2","SEX":"2"},
{"ID":"3","NAME":"3","SEX":"3"}
];
alert(USER[0].Name); "1"
alert(USER[1].Name); "2"
alert(USER[2].Name); "3"
</script>

JSON文本转换为对象，可以使用eval()函数
[/Quote]

[orain]

如果你使用 .NET 3.5，倒是可以直接用 System.Runtime.Serialization.Json.DataContractJsonSerializer 对 JSON 进行序列化和反序列化，早期的版本只能自己做了。

[youzi520]

我用的MVC 可以把单个对象转化

public class JsonBinder<T> : IModelBinder
{
public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
var param = new DataContractJsonSerializer(typeof(T))
.ReadObject(controllerContext.HttpContext.Request.InputStream);

return param;
}




}


ModelBinders.Binders[typeof(UserDTO)] = new JsonBinder<UserDTO>();


前台请求
{"ID":"1","NAME":"1","SEX":"1"}
------------------------------------------------------------
现在如果传递对象组 不知道处理了!!
{"ID":"1","NAME":"1","SEX":"1"},
{"ID":"2","NAME":"2","SEX":"2"},
{"ID":"3","NAME":"3","SEX":"3"}


后台如何得到IList<UserDTO>

[orain]

使用 new DataContractJsonSerializer(typeof(List<UserDTO>))

[Teng_s2000]

mark

[youzi520]

多谢各位回复!最近忙刚来结帖..