应用程序常常需要在硬盘上存储数据,而逐段构建文本和数据文件不是最方便的方式。
有时最好以对象的形式存储数据。
● System.Runtime.Serialization.Formatters.Binary：这个命名空间包含了BinaryFormatter类，它能把对象串行化为二进制数据，把二进制数据串行化为对象。
● System.Runtime.Serialization.Formatters.Soap：这个命名空间包含了SoapFormatter类，它能把对象串行化为SOAP格式的XML数据，把SOAP格式的XML数据串行化为对象。
下面是一个实例，通过这个实例，我们可以就可以很清晰的认识到串行化和并行化的具体处理。
1using System;
2using System.Data;
3using System.Runtime.Serialization;
4using System.Runtime.Serialization.Formatters.Binary;
5using System.IO;
6using System.Text;
7using System.Collections.Generic;
8
9/**//// <summary>
10/// Summary description for Teacher
11/// </summary>
12[Serializable]//加上这个才能串行化
13public class Teacher
14{
15 /**//// <summary>
16 /// 教师ID
17 /// </summary>
18 public string ID;
19 /**//// <summary>
20 /// 教师姓名
21 /// </summary>
22 public string Name;
23 /**//// <summary>
24 /// 初始化
25 /// </summary>
26 public Teacher()
27 {
28 /**////
29 }
30 /**//// <summary>
31 /// 构造函数
32 /// </summary>
33 /// <param name="id"></param>
34 /// <param name="name"></param>
35 public Teacher(string id, string name)
36 {
37 this.ID = id;
38 this.Name = name;
39 }
40 /**//// <summary>
41 /// 串行化对象，保存为文件
42 /// </summary>
43 /// <param name="nObject"></param>
44 public void serializeObject(Teacher nTeacher)
45 {
46 try
47 {
48 //BinaryFormatter把对象串行化为二进制数据，把二进制数据串行化为对象
49 IFormatter formatter = new BinaryFormatter();
50 //FileStream fileStream = new FileStream(@"d:\teacher22.txt", FileMode.Create,FileAccess.Write);
51 FileStream fileStream = File.Create(@"d:\data.dat");
52 formatter.Serialize(fileStream, nTeacher);
53 fileStream.Close();
54 }
55 catch(Exception ex)
56 {
57 throw ex;
58 }
59 finally
60 {
61 }
62 }
63 /**//// <summary>
64 /// 反串行化||并行化
65 /// </summar
66 /// <param name="str"></param>
67 /// <returns></returns>
68 public Teacher deserializeObject()
69 {
70 try
71 {
72 BinaryFormatter derializer=new BinaryFormatter();
73 Stream stream = new FileStream(@"d:\data.dat", FileMode.Open, FileAccess.Read, FileShare.Read);
74
75 //FileStream nFile = new FileStream(@"d:\teacher22.txt", FileMode.Open, FileAccess.Read, FileShare.Read);
76 long coutn = stream.Length;
77 Teacher nTeacher = (Teacher)derializer.Deserialize(stream);
78 return nTeacher;
79 }
80 catch (Exception ex)
81 {
82 throw ex;
83 return null;
84 }
85
86 }
87 /**//// <summary>
88 /// 串行化对象
89 /// </summary>
90 /// <param name="nObject"></param>
91 public void serializeObjects(object nObject)
92 {
93 FileStream fileStream = new FileStream("d:\path.xml",FileMode.Create);
94 IFormatter serializer = new BinaryFormatter();
95 serializer.Serialize(fileStream, nObject);
96 }
97 /**//// <summary>
98 /// 反串行化---并行化
99 /// </summary>
100 /// <param name="str"></param>
101 /// <returns></returns>
102 public object deserializeObjects(string strPath)
103 {
104 FileStream filestream = new FileStream(@strPath,FileMode.Open);
105 IFormatter derializer = new BinaryFormatter();
106 object nObject=(object)derializer.Deserialize(filestream);
107 return nObject;
108 }
109}
110
