c# json转换实例

用户实体：

public class UserModel
{
    public long? UserId { get; set; }
    public string UserName { get; set; }
    public string UserPwd { get; set; }
    public long? RoleId { get; set; }
    public string RoleName { get; set; }
    public int UserType { get; set; }
    public int UserStatus { get; set; }
    public DateTime? CreateTime { get; set; }
    public DateTime? UpdateTime { get; set; }
    public long? CreateUserId { get; set; }
    public long? UpdateUserId { get; set; } 
}

利用JSON.NET的JsonConvert对象序列化(用户实体)为json字符串：

UserModel model =new UserModel();
model.UserId = 0001;
model.UserName = "张三";
model.UserPwd = "nibabadexiaobibi";
model.RoleId = 3;
model.UserType = 2;
model.UserStatus = 1;
model.CreateTime = Datetime.Now;
model.UpdateTime = DateTime.Now;
model.CreateUserId = 88;
model.CreateUserId = 89;

var jsonData = Newtonsoft.Json.JsonConvert.SerializeObject(model);

result:
{
　　"UserId":0001,
　　"UserName":"张三",
　　"UserPwd":"nibabadexiaobibi",
　　"RoleId":3,
　　"UserType":2,
　　"UserStatus":1,
　　"CreateTime":"2016-08-09 00:00:00",
　　"UpdateTime":"2016-08-09 00:00:00",
　　"CreateUserId":88,
　　"UpdateUserId":89
}

再将json字符串转换为实体对象：

UserModel model = Newtonsoft.Json.JsonConvert.DeserializeObject<UserModel>(jsonData);

output:model.UserName