1 // sparse.cpp : 定义控制台应用程序的入口点。
 2 //
 3 
 4 #include "stdafx.h"
 5 #include <conio.h>
 6 #using <system.dll>
 7 #using <system.messaging.dll>
 8 #using <System.Runtime.Serialization.Formatters.Soap.dll>//这个里面包含二进制流序列化
 9 
10 using namespace System;
11 using namespace System::IO;
12 using namespace System::Runtime::Serialization::Formatters::Binary;
13 // A test object that needs to be serialized.
14 
15 [Serializable]
16 ref class TestSimpleObject
17 {
18 private:
19    int member1;
20    String^ member2;
21    String^ member3;
22    double member4;
23 
24 public:
25 
26    // A field that is not serialized.
27 
28    [NonSerialized]
29    String^ member5;
30 
31    TestSimpleObject()
32    {
33       member1 = 11;
34       member2 = "hello";
35       member3 = "hello";
36       member4 = 3.14159265;
37       member5 = "hello world!";
38    }
39 
40    void Print()
41    {
42       Console::WriteLine( "member1 = ‘ {0}‘", member1 );
43       Console::WriteLine( "member2 = ‘ {0}‘", member2 );
44       Console::WriteLine( "member3 = ‘ {0}‘", member3 );
45       Console::WriteLine( "member4 = ‘ {0}‘", member4 );
46       Console::WriteLine( "member5 = ‘ {0}‘", member5 );
47    }
48 
49 };
50 
51 int main()
52 {
53 
54    //Creates a new TestSimpleObject object.
55    TestSimpleObject^ obj = gcnew TestSimpleObject;
56    Console::WriteLine( "Before serialization the Object* contains: " );
57    obj->Print();
58    //下面是序列化与反序列化过程
59    Stream^ stream = File::Open( "data.xml", FileMode::Create );
60    Stream^ stream = gcnew MemoryStream();
61    BinaryFormatter^ formatter = gcnew BinaryFormatter();
62    formatter->Serialize( stream, obj );
63    stream->Position = 0;
64    array<Byte>^ buffer = gcnew array<Byte>(stream->Length);  //定位到stream里面的Read方法，找到Read方法在这里面该怎么用。
65    stream->Read( buffer,0,sizeof(buffer));  //使用 Read 读取数据块  
66    stream->Flush();
67    stream->Close();
68    //Empties obj.
69    obj = nullptr;
70 
71    //Opens file S"data.xml" and deserializes the object from it.
72    stream = File::Open( "data.xml", FileMode::Open );
73   // formatter = gcnew SoapFormatter;
74 
75    formatter = gcnew BinaryFormatter();
76    obj = dynamic_cast<TestSimpleObject^>(formatter->Deserialize( stream ));
77    stream->Close();
78    Console::WriteLine( "" );
79    Console::WriteLine( "After deserialization the object contains: " );
80    obj->Print();
81    getch();
82    return 0;
83 }

 1  //下面是序列化过程
 2  //记得一点，UDP传输的过程中是字节流。   而序列化后是二进制流，必须把二进制流再转换为字节流才可以。
 3    Stream^ stream = gcnew MemoryStream();
 4    BinaryFormatter^ formatter = gcnew BinaryFormatter();   
 5    formatter->Serialize( stream, obj );
 6    stream->Position = 0;
 7    // Now read s into a byte buffer.
 8    array<Byte>^ buffer = gcnew array<Byte>(stream->Length);    //必须定义这种结构，不然，Read函数会不认识。其实是用到了.net里面的array<Byte>
                                                                   //类型的元素。
 9    int numBytesToRead = (int) stream -> Length;     
10    int numBytesRead = 0; 
11    while(numBytesToRead > 0)
12    {
13        int n = stream -> Read(buffer,numBytesRead,stream -> Length);   //这里是Read函数的用法，将stream流里面的内容，写入buffer里面去。从0                                                                          位置开始写。长度stream -> Length;
14        if (n == 0)
15         {
16             break;
17         }
18         numBytesRead += n;
19         numBytesToRead -= n;
20    }
21    obj = nullptr;   //释放内存
22    stream -> Close(); //关闭数据流
23    char* pointArray = new char[sizeof(buffer)];     //这是将array<Byte>类型转为char[]类型。但前提是buffer不能为指针，所以，以上的这句代码是错       的。但方法正确。

24 for(int i=0;i<sizeof(buffer);i++) 

25  
      {
26                 pointArray[i]=safe_cast<byte>(buffer[i]);  // allows you to change the type of an expression and generate verifiable                                                               MSIL code.

27     }