扩展方法ToJSON() and ParseJSON()

时间：2015-01-29 来源：互联网作者：佚名

使用例子:
复制代码代码如下:
    protected void Page_Load(object sender, EventArgs e)
    {
        Person p = new Person
        {
            Name = "wuchang",
            Email = "wuchangx@qq.com",
            LastActive = DateTime.Now,
            Arr = new string[] { "arr1", "arr2" },
            Lst = new List<string>( new string[] { "lst1", "lst2" } )
        };

        string json = p.ToJSON();
        this.TextBox1.Text = json;

        Person pp = json.ParseJSON<Person>();
        this.TextBox2.Text = pp.ToJSON();
    }

实现
复制代码代码如下:
public static class JSONExtension
{
    public static string ToJSON(this object obj)
    {
        DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
        using (MemoryStream ms = new MemoryStream())
        {
            serializer.WriteObject(ms, obj);
            return Encoding.Default.GetString(ms.ToArray());
        }
    }

    public static T ParseJSON<T>(this string str)
    {
        T obj = Activator.CreateInstance<T>();
        using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(str)))
        {
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
            return (T)serializer.ReadObject(ms);
        }
    }
}

来顶一下