Json 与 后台对象的相互转化

<p><textarea cols="50" rows="15" name="code" class="c-sharp"> public class Common
{
/// <summary>
/// 解析json对象为C#对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="json"></param>
/// <returns></returns>
public static T JsonToObj<T>(string json)
{
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
T obj;
using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json)))
{
obj = (T)ser.ReadObject(ms);
}
return obj;
}
/// <summary>
/// 将对象转换为json
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public static string ObjToJson(object obj)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
using (MemoryStream ms = new MemoryStream())
{
serializer.WriteObject(ms, obj);
StringBuilder sb = new StringBuilder();
sb.Append(Encoding.UTF8.GetString(ms.ToArray()));
return sb.ToString();
}
}
}
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);
}
}
}
</textarea></p>
<p>Common与JSONExtension均可以实现</p>