.net framework 3.5 序列化

最新推荐文章于 2025-08-19 23:22:50 发布

转载最新推荐文章于 2025-08-19 23:22:50 发布 · 138 阅读

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原文链接：http://www.cnblogs.com/nanfei/p/5581720.html

文章标签：

#json #runtime

本文介绍了两种.NET平台上的序列化方式：JSON序列化与DataContract序列化。通过具体示例展示了如何将对象序列化为JSON字符串及如何反序列化。同时提供了DataContract序列化的实现方法。

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1.JSON序列化。

首先，引用程序集 System.Runtime.Serialization, 我们要使用System.Runtime.Serialization.Json，默认点不出来，这应该是一个扩展方法。所以还需要引入以下两个程序集：

System.ServiceModel
System.ServiceModel.Web

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;

namespace FirsteLite.OMS.Business.Helper
{
    public static class JsonHelper
    {
        public static string Serialize<T>(T obj)
        {
            DataContractJsonSerializer serilializer = new DataContractJsonSerializer(typeof(T));
            using (Stream stream = new MemoryStream())
            {
                serilializer.WriteObject(stream, obj);
                stream.Flush();
                stream.Position = 0;
                StreamReader reader = new StreamReader(stream);
                return reader.ReadToEnd();
            }
        }

        public static T Deserialize<T>(string source)
        {
            using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(source)))
            {
                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
                return (T)serializer.ReadObject(ms);
            }
        }
    }
}

示例如下：

            var p1 = new Person 
            {
                Name = "NanFei",
                Age = 30,
                Gender = 1,
                BirthDay = DateTime.Now
            };

            var p2 = new Person
            {
                Name = "FanJinfei",
                Age = 30,
                Gender = 1,
                BirthDay = DateTime.Now
            };

            var personList = new List<Person>();
            personList.Add(p1);
            personList.Add(p2);

            var json = JsonHelper.Serialize<List<Person>>(personList);
            var list = JsonHelper.Deserialize<List<Person>>(json);

2.DataContract序列化，这种兼容的可序列化类型多一些。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using log4net;
using System.Xml.Serialization;
using System.Xml;
using System.IO;
using System.Runtime.Serialization;

namespace FirsteLite.OMS.Business.Helper
{
    public static class DataContractHelper
    {
        public static ILog log = LogManager.GetLogger(typeof(DataContractHelper));

        public static string Serialize<T>(T obj)
        {
            try
            {
                using (var ms = new MemoryStream())
                {
                    var serializer = new DataContractSerializer(typeof(T));
                    serializer.WriteObject(ms, obj);
                    return Encoding.UTF8.GetString(ms.ToArray());
                }
            }
            catch (Exception ex)
            {
                log.Error("序列化类型" + typeof(T).Name + "时发生错误。", ex);
                return null;
            }
            
        }

        public static T Deserialize<T>(string value)
        {
            try
            {
                var serializer = new DataContractSerializer(typeof(T));
                using (var ms = new MemoryStream(Encoding.UTF8.GetBytes(value)))
                {
                    return (T)serializer.ReadObject(ms);
                }
            }
            catch (Exception ex)
            {
                log.Error("反序列化类型" + typeof(T).Name + "时发生错误。", ex);
                return default(T);
            }
            
        }
    }
}