CODE:扩展方法ToJSON() and ParseJSON()
2008-03-08 21:59 无常 阅读(2459) 评论(0) 编辑 收藏 举报AJAX编程经常需要Object<=>JSON之间转换,写了二个扩展方法:
public static string ToJSON(this object obj)
public static T ParseJSON<T>(this string str)
使用例子:
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
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); |
} |
} |
} |