asp.net3.5

要引用:System.ServiceModel.Web, System.Runtime.Serialization,System.Runtime.Serialization.Json;

以我在项目中做系统卡为例(要填充名为LockCardEntity对象,Insert到数据库):1).在JS端

JS Json

var LockCard='{"CardTypeID":"<%=cardtypeid%>","CardNo":"<%=WaterNo%>","WriteContend":"'+WriteContend+'"}';
                        
Htinns.PMS.Web.LockCard.LockCard.AuthenticateSpecialCard(LockCard,success);

WebService

LockCardBLL bll = new LockCardBLL();

//将JSON字符串转换为 LockCardEntity
LockCardEntity EntityInfo= JsonHelper.ParseFromJson<LockCardEntity>(LockCardInfo.ToString());

//Insert
bll.Add(EntityInfo);

JsonHelper

    public static class JsonHelper
    {
        
public static string GetJson<T>(T obj)
        {
            DataContractJsonSerializer json 
=
            
new DataContractJsonSerializer(obj.GetType());
            
using (MemoryStream stream = new MemoryStream())
            {
                json.WriteObject(stream, obj);

                
string szJson = Encoding.UTF8.GetString(stream.ToArray());
                
return szJson;
            }
        }

        
public static T ParseFromJson<T>(string szJson)
        {
            T obj 
= Activator.CreateInstance<T>();
            
using (MemoryStream ms =
            
new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
            {
                DataContractJsonSerializer serializer 
=
                
new DataContractJsonSerializer(obj.GetType());
                
return (T)serializer.ReadObject(ms);
            }
        }
    }

 

使用的时候自己在外面加上异常操作!