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C#中的二进制序列化和Json序列化

时间:2015-06-04 15:33:27      阅读:276      评论:0      收藏:0      [点我收藏+]

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序列化就是把一个对象变成流的形式,方便传输和还原。小弟不才,总结下对二进制序列化和Json序列化的使用:

1.首先,二进制序列化(BinaryFormatter)要求要序列化的类必须是可序列化的(即在类定义的前面加Serializable关键字),而且它的父类类型也必须是可序列化的,经过查看发现,Dotnet中很多类型和结构都有这个标记;而Json序列化不用写标记;

2.如果类中某些属性不希望被二进制序列化,加NonSerialized关键字即可,而要二进制序列化的属性的类型必须是可序列化的数据类型;

3.二进制序列化只会对类中的字段(属性)序列化,故序列化时不建议使用自动属性(每次生成的字段都可能不一样,影响反序列化)。

下面是二进制序列化的代码:

1.要序列化的类的定义:

技术分享
  1  [Serializable]
  2     public class Person
  3     {
  4         private string _sName;
  5 
  6         public string SName
  7         {
  8             get { return _sName; }
  9             set { _sName = value; }
 10         }
 11 
 12         private int _iAge;
 13 
 14         public int IAge
 15         {
 16             get { return _iAge; }
 17             set { _iAge = value; }
 18         }
 19 
 20         private string _sEmail;
 21 
 22         public string SEmail
 23         {
 24             get { return _sEmail; }
 25             set { _sEmail = value; }
 26         }
 27 
 28         private string _sPhone;
 29 
 30         public string SPhone
 31         {
 32             get { return _sPhone; }
 33             set { _sPhone = value; }
 34         }
 35 
 36         private string _sAddress;
 37 
 38         public string SAddress
 39         {
 40             get { return _sAddress; }
 41             set { _sAddress = value; }
 42         }
 43 
 44         private string _sSex;
 45 
 46         public string SSex
 47         {
 48             get { return _sSex; }
 49             set { _sSex = value; }
 50         }
 51 
 52         private Car _myCar;
 53 
 54         public Car MyCar
 55         {
 56             get { return _myCar; }
 57             set { _myCar = value; }
 58         }
 59 
 60         public Person()
 61         {
 62 
 63         }
 64 
 65         public Person(string name,int age,string sex,string email,string phone,string address,Car car):this()
 66         {
 67             this.SName = name;
 68             this.IAge = age;
 69             this.SSex = sex;
 70             this.SEmail = email;
 71             this.SPhone = phone;
 72             this.SAddress = address;
 73             this.MyCar = car;
 74         }
 75     }
 76     [Serializable]
 77     public class Car
 78     {
 79         private string _sCarType;
 80 
 81         public string SCarType
 82         {
 83             get { return _sCarType; }
 84             set { _sCarType = value; }
 85         }
 86 
 87         private string _sCarNum;
 88 
 89         public string SCarNum
 90         {
 91             get { return _sCarNum; }
 92             set { _sCarNum = value; }
 93         }
 94 
 95         public Car()
 96         {
 97 
 98         }
 99 
100         public Car(string carType,string carNum):this()
101         {
102             this.SCarType = carType;
103             this.SCarNum = carNum;
104         }
105     }
View Code

2.二进制序列化代码:

技术分享
BinaryFormatter bf = new BinaryFormatter();
            Person p = null;

            using (FileStream fsWrite=new FileStream("person.bin",FileMode.Create,FileAccess.Write))
            {
                if (ckbIsCar.Checked)
                {
                    var strCarNum = txtCarNum.Text.Trim();
                    var strCarType = txtCarType.Text.Trim();

                    Car c1=new Car(strCarType,strCarNum);
                    p = new Person(strName, intAge,strSex, strEmail, strPhone, strAddress, c1);
                }
                else
                {
                    //不登记车的情况
                    p = new Person(strName, intAge,strSex, strEmail, strPhone, strAddress, null);
                }
                //二进制序列化
                bf.Serialize(fsWrite, p);
                MessageBox.Show("对象序列化完毕");
View Code

在进行二进制反序列化(还原对象时),需要将序列化程序集中的.exe和.pdb两个文件拷贝进来,并添加对程序集的引用,二进制反序列化很简单,代码如下:

技术分享
 1 BinaryFormatter bf = new BinaryFormatter();
 2             string strPath = ConfigurationManager.AppSettings["FilePath"];
 3             StringBuilder sb = new StringBuilder();
 4 
 5             using (FileStream fsRead=new FileStream(strPath,FileMode.Open,FileAccess.Read))
 6             {
 7                 Person p1 = bf.Deserialize(fsRead) as Person;
 8                 if (p1!=null)
 9                 {
10                     Car c1 = p1.MyCar;
11                     if (c1!=null)
12                     {
13                         //登记了车的信息
14                         sb.AppendFormat("姓名:{0};\r\n年龄:{1}岁;\r\n性别:{2};\r\n联系电话:{3};\r\n电子邮箱:{4};\r\n联系地址:{5};\r\n车型:{6};\r\n车牌号:{7}。", p1.SName, p1.IAge, p1.SSex, p1.SPhone, p1.SEmail, p1.SAddress, c1.SCarType, c1.SCarNum);
15                     }
16                     else
17                     {
18                         sb.AppendFormat("姓名:{0};\r\n年龄:{1}岁;\r\n性别:{2};\r\n联系电话:{3};\r\n电子邮箱:{4};\r\n联系地址:{5}。", p1.SName, p1.IAge, p1.SSex, p1.SPhone, p1.SEmail, p1.SAddress);
19                     }
20                 }
21             }
22             lbResult.Text = sb.ToString();
View Code

再来说说Json序列化,先上代码:

技术分享
 1 Console.WriteLine("请输入您的姓名:");
 2             string sName = Console.ReadLine();
 3             if (!string.IsNullOrEmpty(sName))
 4             {
 5                 Console.WriteLine("{0},请输入你的年龄:",sName);
 6                 int iAge = int.Parse(Console.ReadLine());
 7                 Console.WriteLine("{0},请输入你的性别:",sName);
 8                 string sSex = Console.ReadLine();
 9                 Console.WriteLine("{0},请输入你的E-Mail地址:",sName);
10                 string sEmail = Console.ReadLine();
11                 Console.WriteLine("{0},请输入你的联系电话:",sName);
12                 string sPhone = Console.ReadLine();
13                 Console.WriteLine("{0},请输入你的通信地址:",sName);
14                 string sAddress = Console.ReadLine();
15 
16                 Person p = new Person(sName, iAge, sSex, sEmail, sPhone, sAddress);
17                 JavaScriptSerializer jsSerializer = new JavaScriptSerializer();
18                 //执行Json序列化
19                 File.WriteAllText("demo.txt", jsSerializer.Serialize(p));
20                 Console.WriteLine("Json序列化完毕");
View Code

Json序列化好的数据是一对大括号括起来的,每个数据由属性名和值中间加个“:”组成。

Json反序列化一样很简单,同理,也需要将序列化程序集中的.exe和.pdb两个文件拷贝进来,并添加对程序集的引用,代码如下:

Json反序列化

技术分享
 1 string sPath = ConfigurationManager.AppSettings["FilePath"];
 2             string sContent = File.ReadAllText(sPath, Encoding.UTF8);
 3 
 4             JavaScriptSerializer jsSerializer = new JavaScriptSerializer();
 5             //这里使用泛型方法可以避免类型转换,方便使用!
 6             Person p1 = jsSerializer.Deserialize<Person>(sContent);
 7             Console.WriteLine("姓名:" + p1.SName);
 8             Console.WriteLine("性别:"+p1.SSex);
 9             Console.WriteLine("年龄:"+p1.IAge.ToString());
10             Console.WriteLine("联系电话:"+p1.SPhone);
11             Console.WriteLine("E-mail:"+p1.SEmail);
12             Console.WriteLine("联系地址:"+p1.SAddress);
13             Console.ReadKey();
View Code

最后说一下今天我在做Json序列化时,遇到的一个问题:在写出类名JavaScriptSerializer后怎么都无法引用(类名也不会变蓝色),在网上查了下,终于找到方法(我用的是Visual Studio 2010,2012也不行):

首先在项目上右击“属性”,如果目标框架是:.net framework 4 Client profile的,自然引用不了,要改成正式版,即选不带后缀(不带Client profile的),更改后项目中自然多了一个app.config项目配置文件,再引用System.web.Extensions这个程序集。问题即可解决。

 

C#中的二进制序列化和Json序列化

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原文地址:http://www.cnblogs.com/chens2865/p/4551828.html

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