Json序列化和反序列化

引用程序集：System.Runtime.Serialization;

引用命令空间：System.Runtime.Serialization.Json;

public class JsonHelper
{
    /// <summary>
    /// 生成Json格式
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="obj"></param>
    /// <returns></returns>
    public static string JsonSerializer<T>(T obj)
    {
        //JavaScriptSerializer serialize = new JavaScriptSerializer();
        //return serialize.Serialize(obj);
        var json = new DataContractJsonSerializer(obj.GetType());
        using (var stream = new MemoryStream())
        {
            json.WriteObject(stream, obj);
            string szJson = Encoding.UTF8.GetString(stream.ToArray());
            return szJson;
        }
    }

    /// <summary>
    /// 获取Json的Model
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="szJson"></param>
    /// <returns></returns>
    public static T JsonDeserialize<T>(string szJson)
    {
        T obj = Activator.CreateInstance<T>();
        using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
        {
            var serializer = new DataContractJsonSerializer(obj.GetType());
            return (T)serializer.ReadObject(ms);
        }
    }
}

 方式二：使用扩展方法

public static class JsonHelper
{
    /// <summary>
    /// 生成Json格式
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="obj"></param>
    /// <returns></returns>
    public static string JsonSerializer<T>(this T obj)
    {
        //JavaScriptSerializer serialize = new JavaScriptSerializer();
        //return serialize.Serialize(obj);
        var json = new DataContractJsonSerializer(obj.GetType());
        using (var stream = new MemoryStream())
        {
            json.WriteObject(stream, obj);
            string szJson = Encoding.UTF8.GetString(stream.ToArray());
            return szJson;
        }
    }

    /// <summary>
    /// 获取Json的Model
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="szJson"></param>
    /// <returns></returns>
    public static T JsonDeserialize<T>(this string szJson)
    {
        T obj = Activator.CreateInstance<T>();
        using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
        {
            var serializer = new DataContractJsonSerializer(obj.GetType());
            return (T)serializer.ReadObject(ms);
        }
    }
}