怎么在ASP.NET中将JSON字符串与实体类进行转换
代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Runtime.Serialization.Json;
using System.ServiceModel.Web;///记得引用这个命名空间
using System.IO;
using System.Text;
///
/// Summary description for JsonHelper
///
public class JsonHelper
{
public JsonHelper()
{
//
// TODO: Add constructor logic here
//
}
///
/// 把对象序列化 JSON 字符串
///
///
/// 对象实体
///
public static string GetJson
{
//记住 添加引用 System.ServiceModel.Web
/**
* 如果不添加上面的引用,System.Runtime.Serialization.Json; Json是出不来的哦
* */
DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T));
using (MemoryStream ms = new MemoryStream())
{
json.WriteObject(ms, obj);
string szJson = Encoding.UTF8.GetString(ms.ToArray());
return szJson;
}
}
///
/// 把JSON字符串还原为对象
///
///
/// JSON字符串
///
public static T ParseFormJson
{
T obj = Activator.CreateInstance
using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes(szJson)))
{
DataContractJsonSerializer dcj = new DataContractJsonSerializer(typeof(T));
return (T)dcj.ReadObject(ms);
}
}
}
测试实体类：
复制代码 代码如下:
public class TestData
{
public TestData()
{
}
public int Id { get; set; }
public string Name { get; set; }
public string Sex { get; set; }
}
测试页面：
复制代码 代码如下:
<%@ Page Language="C#" %>