聊天室程序客户端

聊天室客户端程序 Windows控制台应用程序

 

对应的Linux服务器使用select模型实现:

 

Linux下select函数实现的聊天服务器

http://blog.csdn.net/microtong/archive/2009/12/12/4989902.aspx

 

 

运行命令行为：Client.exe 127.0.0.1 8000

 

命令行参数分别为要连接的IP地址和端口

 

//Client.cpp#include <winsock2.h>#include <stdio.h>#include <windows.h>//引入静态链接库#pragma comment(lib,"ws2_32.lib")//缓冲区大小#define BUFFER_SIZE 4096//用来修改用户姓名的命令const char* CMD_NAME="name";//用来退出系统的命令const char* CMD_BYE="bye";//负责接收数据的线程DWORD WINAPI ReceiveThreadProc( LPVOID lpParameter);int main(int argc, char* argv[]){//判断是否输入了IP地址和端口号if(argc!=3){printf("Usage: %s IPAddress PortNumber/n",argv[0]);exit(-1);}//把字符串的IP地址转化为u_longunsigned long ip;if((ip=inet_addr(argv[1]))==INADDR_NONE){printf("不合法的IP地址：%s",argv[1]);exit(-1);}//把端口号转化成整数short port;if((port = atoi(argv[2]))==0){printf("端口号有误！");exit(-1);}printf("Connecting to %s:%d....../n",inet_ntoa(*(in_addr*)&ip),port);WSADATA wsa;//初始化套接字DLLif(WSAStartup(MAKEWORD(2,2),&wsa)!=0){printf("套接字初始化失败!");exit(-1);}//创建套接字SOCKET sock;if((sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==INVALID_SOCKET){printf("创建套接字失败！");exit(-1);}struct sockaddr_in serverAddress;memset(&serverAddress,0,sizeof(sockaddr_in));serverAddress.sin_family=AF_INET;serverAddress.sin_addr.S_un.S_addr = ip;serverAddress.sin_port = htons(port);//建立和服务器的连接if(connect(sock,(sockaddr*)&serverAddress,sizeof(serverAddress))==SOCKET_ERROR){printf("建立连接失败！");exit(-1);}//创建从服务器接收数据的线程DWORD threadId;CreateThread(NULL,0,ReceiveThreadProc,&sock,0,&threadId);printf(">");char buf[BUFFER_SIZE];while(1){//从控制台读取一行数据gets(buf);printf(">");//发送给服务器 if(send(sock,buf,strlen(buf),0)==SOCKET_ERROR){printf("发送数据失败！");exit(-1);}}//清理套接字占用的资源WSACleanup();return 0;}DWORD WINAPI ReceiveThreadProc( LPVOID lpParameter){SOCKET s = *(SOCKET*)lpParameter;char receiveBuf[BUFFER_SIZE];int bytes;while(1){ if((bytes=recv(s,receiveBuf,sizeof(receiveBuf),0))==SOCKET_ERROR){printf("接收数据失败!/n");exit(-1);}if(bytes==0){printf("server is down./n");exit(-1);}receiveBuf[bytes]='/0';//如果用户输入了“bye”if(strcmp(receiveBuf,CMD_BYE)==0){closesocket(s);exit(0);}printf("/n%s/n>",receiveBuf);}}