C语言 socket 编写简单服务端客户端通信问题 |
| 时间：2021-03-21 20:25:12 来源： 作者： |
大家好，感谢你的回复。
我用c 写了一个socket通信的小程序，写好了服务端和客户端，可遇到个问题，就是每次启动客户端只能发送第一条消息，之后服务端就不能再收到消息了。
Talk is cheak , show me the code.
服务端代码：
- #include<stdlib.h>
- #include<WinSock2.h>
- #pragma comment(lib,"ws2_32.lib")
- int main(){
- WSADATA wsd;
- SOCKET sockServer;
- SOCKADDR_IN serveraddr;// 服务端套接字 该结构中包含了要结合的地址和端口号
- SOCKET sockClient;
- SOCKADDR_IN clientaddr;
- WSAStartup(MAKEWORD(2,2),&wsd);//初始化网络接口
- sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//创建服务器socket
-
-
- if (sockServer != -1 && sockServer != INVALID_SOCKET){
- printf("Socket has been created :%d", sockServer);
- }
- else{
- printf("Socket create failed.");
- exit(0);
- }
- serveraddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
- serveraddr.sin_family = AF_INET;
- serveraddr.sin_port = htons(6000);//绑定端口6000
- int bindInfo = bind(sockServer, (SOCKADDR*)&serveraddr, sizeof(SOCKADDR));
- char recvBuf[100];
- int len = sizeof(SOCKADDR);
- listen(sockServer, 5);//5为等待连接数
- while (1){
- sockClient = accept(sockServer, (SOCKADDR*)&clientaddr, &len);
- //接收客户端数据
- recv(sockClient, recvBuf, strlen(recvBuf)+1, MSG_PEEK);
- printf("to me:%s\n",recvBuf);
- memset(recvBuf, 0, 100);
- }
- closesocket(sockClient);
- system("pause");
- return 0;
- }
复制代码 客户端代码：
- #include<winsock2.h>
- #include<stdio.h>
- #pragma comment(lib, "ws2_32.lib")
- void main()
- {
- WSADATA wsaData;
- SOCKET sockClient;//客户端Socket
- SOCKADDR_IN addrServer;//服务端地址
- WSAStartup(MAKEWORD(2, 2), &wsaData);
- char message[20] = "HelloSocket!";
- //定义要连接的服务端地址
- addrServer.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");//目标IP(127.0.0.1是回送地址)
- addrServer.sin_family = AF_INET;
- addrServer.sin_port = htons(6000);//连接端口6000
- //新建客户端socket
- sockClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- int s = 0;
- s = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));
-
- while (1){
- //发送数据
- int a = send(sockClient, message, strlen(message) + 1, 0);
- printf("to server:");
- scanf("%s", message);
-
- }
- //关闭socket
- closesocket(sockClient);
- WSACleanup();
- }
复制代码 求懂的高手来解答一下。
谢谢了！
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