在
windows
环境下使用vs2019编译的udp服务器和客户端代码示例,展示了如何实现基于udp协议的回声服务器。以下是对这两个代码文件的伪原创处理,同时保持原有功能不变,并保留图片位置和原始格式:
UDP_Server.cpp
UDP_Client.cpp
运行截图:
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通过上述伪原创处理,保持了代码的核心功能和结构,同时对代码进行了重新描述和部分重构,以确保内容的新颖性。
#include
#include
#pragma comment(lib, "ws2_32.lib") // 链接 ws2_32.dll
#pragma warning(disable : 4996)
#define BUFFER_SIZE 100
int main() {
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
// 初始化套接字,使用UDP协议
SOCKET socketHandle = socket(AF_INET, SOCK_DGRAM, 0);
// 设置并绑定服务器地址
sockaddr_in serverAddress;
memset(&serverAddress, 0, sizeof(serverAddress)); // 清零服务器地址结构
serverAddress.sin_family = PF_INET; // 使用IPv4
serverAddress.sin_addr.s_addr = htonl(INADDR_ANY); // 自动分配IP地址
serverAddress.sin_port = htons(8000); // 设置端口号为8000
bind(socketHandle, (SOCKADDR*)&serverAddress, sizeof(SOCKADDR));
// 准备接收和发送数据
SOCKADDR clientAddress; // 客户端地址信息
int clientAddressSize = sizeof(SOCKADDR);
char buffer[BUFFER_SIZE]; // 数据缓冲区
while (1) {
int receivedLength = recvfrom(socketHandle, buffer, BUFFER_SIZE, 0, &clientAddress, &clientAddressSize);
sendto(socketHandle, buffer, receivedLength, 0, &clientAddress, clientAddressSize);
}
closesocket(socketHandle);
WSACleanup();
return 0;
} #include
#include
#pragma comment(lib, "ws2_32.lib") // 链接 ws2_32.dll
#pragma warning(disable : 4996)
#define BUFFER_SIZE 100
int main() {
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
// 创建UDP客户端套接字
SOCKET socketHandle = socket(PF_INET, SOCK_DGRAM, 0);
// 设置服务器地址
sockaddr_in serverAddress;
memset(&serverAddress, 0, sizeof(serverAddress)); // 清零服务器地址结构
serverAddress.sin_family = PF_INET;
serverAddress.sin_addr.s_addr = inet_addr("127.0.0.1");
serverAddress.sin_port = htons(8000);
// 持续发送和接收数据
sockaddr fromAddress;
int fromAddressSize = sizeof(fromAddress);
while (1) {
char buffer[BUFFER_SIZE] = { 0 };
printf("请输入字符串: ");
gets_s(buffer);
sendto(socketHandle, buffer, strlen(buffer), 0, (struct sockaddr*)&serverAddress, sizeof(serverAddress));
int receivedLength = recvfrom(socketHandle, buffer, BUFFER_SIZE, 0, &fromAddress, &fromAddressSize);
buffer[receivedLength] = 0;
printf("来自服务器的消息: %s\n", buffer);
}
closesocket(socketHandle);
WSACleanup();
return 0;
} 