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大家好,感谢你的回复。
- G% y3 A9 r h8 ^1 H! z( V3 r( E2 k2 e" Y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。: [" o" Z3 g$ j6 ]5 Z( {5 _- ~2 m& `- e
Talk is cheak , show me the code.
$ R i2 H( q1 x2 u# Z! N+ @服务端代码:5 O3 ?) j( \- p! [/ k& N8 _- X% B
- #include<stdlib.h>
& [ Z+ Q+ y) k2 ?/ v# G2 k - #include<WinSock2.h>9 z2 Q# i- y7 A: O0 Q1 ~# i
- #pragma comment(lib,"ws2_32.lib")
2 H0 z5 y( C% Q+ U$ I - int main(){$ B6 E* _1 u, b5 x8 u
- WSADATA wsd;
+ P& N& n" ~3 t( _; ^ - SOCKET sockServer;" Z7 F/ R& K. _) g& d
- 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
+ F- F% c5 O& k; r, U - SOCKET sockClient;
/ a7 {* B9 u5 w8 [ - SOCKADDR_IN clientaddr;2 u* r3 C( w3 p! R6 g4 v
- WSAStartup(MAKEWORD(2,2),&wsd);//初始化网络接口
- n( y4 b. o& I1 g - sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//创建服务器socket8 q+ H! q b4 y5 }: f$ }' L8 [
6 q* _: J" ?" F5 |5 R- 5 `2 b" W* D. [; ?6 A- P7 ^
- if (sockServer != -1 && sockServer != INVALID_SOCKET){7 e5 w# U2 d+ f6 Q* P9 @
- printf("Socket has been created :%d", sockServer);
* ~1 f5 f9 p& q, m - }9 P8 J6 u4 R5 b5 x8 o1 t& o
- else{
0 m u5 j; q+ b8 p5 G' E v - printf("Socket create failed.");2 L0 L+ F5 j7 Q d2 v
- exit(0);( U) o7 @, M+ z7 [ x) J
- }6 [% r5 N3 B4 D+ A' u7 ^6 i
- serveraddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);9 t( U1 M; V9 |2 H
- serveraddr.sin_family = AF_INET;& M. z# @0 b: @+ b S- n
- serveraddr.sin_port = htons(6000);//绑定端口6000, x* z0 v k7 V) U+ i
- int bindInfo = bind(sockServer, (SOCKADDR*)&serveraddr, sizeof(SOCKADDR));
3 Q8 L- T9 B# g- u - char recvBuf[100];
7 D/ e) i4 V3 h - int len = sizeof(SOCKADDR);
4 k/ h: s! }8 q7 N0 K% A - listen(sockServer, 5);//5为等待连接数0 H% f- f0 F* l9 R5 F
- while (1){
/ X2 t( c+ f, A - sockClient = accept(sockServer, (SOCKADDR*)&clientaddr, &len);
, L0 m: O5 y: n% b! n H, C, H- Y$ ?2 v6 A - //接收客户端数据5 @+ R% l; P; m! Z& Q
- recv(sockClient, recvBuf, strlen(recvBuf)+1, MSG_PEEK);
; \& {" H5 q6 L0 J, N - printf("to me:%s\n",recvBuf);
' d/ @! h3 b1 A( p7 U4 G, w - memset(recvBuf, 0, 100);* b8 i6 O3 ]0 z8 L8 n ]( K
- }
0 S$ A4 ^' |, z - closesocket(sockClient);
3 [6 M& P i5 m& M; q8 ^7 y - system("pause");" o0 {% c3 K( |) ~+ e+ D
- return 0;7 Z3 H+ e; \3 q
- }
复制代码 客户端代码:' d5 @! R, y1 _0 B. q% V: A
- #include<winsock2.h>
1 |% N, [: A4 Y! C: e( C - #include<stdio.h>6 h% y! t) \: l) B8 j" c% w
- #pragma comment(lib, "ws2_32.lib")
% x& t$ i0 T. V6 e7 i - void main()
- s- G9 k2 D. o, k" ` - {
# B+ F2 [2 P! B+ o - WSADATA wsaData;
6 F5 x$ m# X# f5 b2 r - SOCKET sockClient;//客户端Socket
% Q3 A4 |/ t4 ?1 c; b - SOCKADDR_IN addrServer;//服务端地址
# W/ \6 [2 ^# ^4 z( e6 L2 Q7 z+ K - WSAStartup(MAKEWORD(2, 2), &wsaData);1 c+ U, L% d3 I, O
- char message[20] = "HelloSocket!";
* @9 T" z6 A/ d, B& `, G - //定义要连接的服务端地址
5 Z& S5 [) L! {. p1 O: ~ - 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)5 T: |2 G3 l. J5 J" q
- addrServer.sin_family = AF_INET;8 `) a6 W V l) g H0 h1 I. W( ~3 B
- addrServer.sin_port = htons(6000);//连接端口6000
/ e) Q# q7 S- w n - //新建客户端socket |" z1 a. y3 o7 q) l$ X+ ^
- sockClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);4 _( K4 G) W4 w* |+ L
- int s = 0;" }6 N' f/ e$ I3 a: n
- s = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));% R% X% a' `2 l
' N% q& f, l" P8 F- Q4 A+ Y/ |- while (1){0 f4 \ P' I( D4 @( ~
- //发送数据# |) M0 N( w3 X& K# k" q
- int a = send(sockClient, message, strlen(message) + 1, 0);
1 r8 p r1 O# X5 [, C - printf("to server:");2 x, ~, r5 k+ ]( M4 k4 G( j
- scanf("%s", message);
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- }. I6 W4 q9 z- G; G5 L
- //关闭socket/ E& p" h D6 S" q
- closesocket(sockClient);0 M8 |& T& \8 k! C# d( T7 Y
- WSACleanup();! W" Q# _1 s# B9 g
- }
复制代码 求懂的高手来解答一下。
% c) [- R+ \* b) s2 V* l1 @. H, u谢谢了!
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