基于C_S结构的Socket程序设计_实验八基于Socket的C/S程序设计与实现资源-CSDN文库

共54个文件

h：11个

cpp：10个

plg：4个

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Socket编程是计算机网络通信中的重要技术，特别是在C/S（Client/Server）架构中，它扮演着数据传输的核心角色。C/S结构是一种常见的网络应用模型，其中客户端（Client）发起请求，服务器端（Server）响应并提供服务。在这个主题中，我们将深入探讨如何使用Socket进行C/S结构的程序设计。 Socket是操作系统提供的一个接口，允许应用程序通过网络发送和接收数据。在C/S架构中，客户端创建Socket来连接到服务器，而服务器端则监听特定的端口，等待客户端的连接请求。一旦连接建立，双方就可以通过Socket交换数据。 1. **Socket创建**：在C/S程序设计中，首先需要在客户端和服务器端创建Socket。在C++中，这通常涉及到`#include <sys/socket.h>`头文件，并使用`socket()`函数创建Socket句柄。例如： ```cpp int socket_desc = socket(AF_INET, SOCK_STREAM, 0); ``` 其中，`AF_INET`表示使用IPv4协议，`SOCK_STREAM`代表TCP协议，0为默认协议。 2. **服务器端配置**：服务器端需要绑定IP地址和端口号，然后启动监听。`bind()`函数用于将Socket与服务器的IP和端口关联，`listen()`函数设置最大连接队列长度。例如： ```cpp struct sockaddr_in server; server.sin_family = AF_INET; server.sin_addr.s_addr = INADDR_ANY; server.sin_port = htons( PORT ); bind(socket_desc, (struct sockaddr *)&server, sizeof(server)); listen(socket_desc, 3); ``` 3. **客户端连接**：客户端使用`connect()`函数尝试连接到服务器。这个函数需要服务器的IP和端口信息。例如： ```cpp struct sockaddr_in server; server.sin_family = AF_INET; server.sin_addr.s_addr = inet_addr("IP_ADDRESS"); server.sin_port = htons(PORT); connect(socket_desc, (struct sockaddr *)&server, sizeof(server)); ``` 4. **数据交换**：连接建立后，`send()`和`recv()`函数用于数据的发送和接收。例如： ```cpp send(socket_desc, message, strlen(message), 0); char buffer[1024] = {0}; recv(socket_desc, buffer, 1024, 0); ``` 5. **关闭Socket**：数据传输完成后，记得关闭Socket。使用`close()`函数可以释放Socket资源： ```cpp close(socket_desc); ``` 6. **异常处理**：在实际编程中，还需要考虑错误处理，如连接失败、数据发送接收失败等，通过`errno`或`perror()`函数获取错误信息。 7. **多线程/并发处理**：对于服务器端，为了同时处理多个客户端的连接请求，可能需要使用多线程或多进程，或者使用异步I/O模型如epoll。 8. **安全性和性能优化**：对于生产环境的应用，还需要考虑安全措施，如SSL/TLS加密，以及性能优化，如连接池管理、缓冲区优化等。基于C/S结构的Socket程序设计涉及网络通信基础、TCP/IP协议、操作系统I/O模型等多个方面。理解并熟练掌握这些知识点，对于开发高效、稳定的网络应用程序至关重要。通过不断实践和学习，初学者可以逐步精通这一领域。

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9章基于C_S结构的Socket程序设计.zip （54个子文件）

第9章基于C_S结构的Socket程序设计

使用说明.doc 30KB

控制台程序

Client

Code

client.opt 98KB

client.dsw 535B

client.cpp 5KB

client.plg 2KB

ReadMe.txt 1KB

StdAfx.cpp 293B

client.ncb 65KB

StdAfx.h 667B

client.dsp 4KB

Exe

client.exe 192KB

Server

Code

server.dsp 4KB

server.ncb 81KB

server.opt 98KB

ReadMe.txt 1KB

server.dsw 535B

server.cpp 7KB

server.plg 246B

StdAfx.cpp 293B

server.h 473B

StdAfx.h 667B

Exe

server.exe 204KB

WSAAsyncSelect异步窗口程序

Client

Code

resource.h 1KB

ClientBySocket.dsp 4KB

ClientBySocket.aps 37KB

ClientBySocket.opt 48KB

ClientBySocket.clw 2KB

ReadMe.txt 4KB

ClientBySocketDlg.cpp 17KB

ClientBySocketDlg.h 3KB

ClientBySocket.h 1KB

ClientBySocket.cpp 2KB

ClientBySocket.plg 2KB

ClientBySocket.dsw 553B

StdAfx.cpp 216B

ClientBySocket.ncb 105KB

StdAfx.h 1KB

Exe

ClientBySocket.exe 2.07MB

Server

Code

resource.h 1KB

ServerBySocket.plg 2KB

ServerBySocketDlg.h 3KB

ServerBySocket.h 1KB

ServerBySocket.clw 2KB

ReadMe.txt 4KB

ServerBySocketDlg.cpp 17KB

ServerBySocket.dsw 553B

ServerBySocket.cpp 2KB

StdAfx.cpp 216B

ServerBySocket.opt 49KB

ServerBySocket.ncb 105KB

ServerBySocket.dsp 4KB

StdAfx.h 1KB

ServerBySocket.aps 36KB

Exe

ServerBySocket.exe 2.04MB

======================================================================== MICROSOFT FOUNDATION CLASS LIBRARY : ServerBySocket ======================================================================== AppWizard has created this ServerBySocket application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your ServerBySocket application. ServerBySocket.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. ServerBySocket.h This is the main header file for the application. It includes other project specific headers (including Resource.h) and declares the CServerBySocketApp application class. ServerBySocket.cpp This is the main application source file that contains the application class CServerBySocketApp. ServerBySocket.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. ServerBySocket.clw This file contains information used by ClassWizard to edit existing classes or add new classes. ClassWizard also uses this file to store information needed to create and edit message maps and dialog data maps and to create prototype member functions. res\ServerBySocket.ico This is an icon file, which is used as the application's icon. This icon is included by the main resource file ServerBySocket.rc. res\ServerBySocket.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file. ///////////////////////////////////////////////////////////////////////////// AppWizard creates one dialog class: ServerBySocketDlg.h, ServerBySocketDlg.cpp - the dialog These files contain your CServerBySocketDlg class. This class defines the behavior of your application's main dialog. The dialog's template is in ServerBySocket.rc, which can be edited in Microsoft Visual C++. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named ServerBySocket.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. ///////////////////////////////////////////////////////////////////////////// Other notes: AppWizard uses "TODO:" to indicate parts of the source code you should add to or customize. If your application uses MFC in a shared DLL, and your application is in a language other than the operating system's current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don't do this, some of the UI elements of your application will remain in the language of the operating system. /////////////////////////////////////////////////////////////////////////////

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