大家好,感谢你的回复。
5 m! e7 {& D1 u2 z( V/ y% U+ O2 p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。
3 P/ a+ L1 {' ~" O+ c$ ~$ a f1 TTalk is cheak , show me the code.6 P$ X$ K( j3 H" n
服务端代码:
* D7 p: ?7 x$ h6 b- #include<stdlib.h>% v) z& }9 w) L& `$ V
- #include<WinSock2.h>8 c" l# d8 V! q- O
- #pragma comment(lib,"ws2_32.lib"); y1 K. L. C6 } ~( l" [& `* m5 U
- int main(){
& |% i8 f+ S+ x. ^+ x! u7 ] - WSADATA wsd;
; v" J0 v3 g; ?9 Q8 a" ` - SOCKET sockServer;
9 ^1 M x) P" i2 T - 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. b* o+ Q, l0 K% `% O+ N
- SOCKET sockClient;
9 m. M( L1 U! Y- A - SOCKADDR_IN clientaddr;
; v" j$ W) T, i5 G7 r6 E8 H - WSAStartup(MAKEWORD(2,2),&wsd);//初始化网络接口
+ _* W n7 v2 _, ~% k/ h - sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//创建服务器socket
1 Q* p8 n0 E7 w2 `4 y - . p3 O; x7 B" h; {: l% c
. C' s3 A0 q, [# Z2 Q* ^$ X- if (sockServer != -1 && sockServer != INVALID_SOCKET){( l9 y+ y1 w6 P3 e7 \( F0 m1 O
- printf("Socket has been created :%d", sockServer);
, Y4 r D0 A0 g2 P; J7 x - }2 S; y) w+ u7 f* |% x
- else{
. Z& b: v2 r2 `! d# h3 g - printf("Socket create failed.");
6 t6 d6 [3 e6 D - exit(0);
" ^ d) a: A' x8 ~ Z3 @ - }) X, A2 \. W7 R0 P" u: ^) u& |
- serveraddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);! ^' R/ X u5 ^0 N$ a
- serveraddr.sin_family = AF_INET;. u3 D6 R. ~, W# l- o$ x6 P
- serveraddr.sin_port = htons(6000);//绑定端口6000
# d5 I% y8 l- Z - int bindInfo = bind(sockServer, (SOCKADDR*)&serveraddr, sizeof(SOCKADDR));
# H! E" [5 h( V* {( i - char recvBuf[100];$ }8 R* ]9 o/ H# x0 y
- int len = sizeof(SOCKADDR);. ~+ ~' Q( X& n, v$ t% p. n
- listen(sockServer, 5);//5为等待连接数! L6 B; \; Q: r$ U4 m4 }
- while (1){1 Z6 h/ b, d4 ]# o' N
- sockClient = accept(sockServer, (SOCKADDR*)&clientaddr, &len);2 T6 Q5 U8 J, z0 A7 F$ h A
- //接收客户端数据2 Y- d7 d5 \% Z! {
- recv(sockClient, recvBuf, strlen(recvBuf)+1, MSG_PEEK);% u* h. S$ b3 d3 c1 u
- printf("to me:%s\n",recvBuf);3 J, c0 n. h' D5 p
- memset(recvBuf, 0, 100);
5 W1 h3 {- Q' i( x% v; I- _ - }% D1 ~. H+ S3 N( u! M9 O" K
- closesocket(sockClient);* _% k% e! @7 y1 x
- system("pause");; E8 c7 H! L {/ \/ `! h
- return 0;, _6 m+ }0 o$ S5 v
- }
复制代码 客户端代码:
6 F" p3 J$ o. Y6 `# D- #include<winsock2.h>
. u v% W j! S9 |4 S. |) _ - #include<stdio.h>
: L x g8 o; C% K - #pragma comment(lib, "ws2_32.lib")$ w# U @" K, Z) M3 t* F# F7 D
- void main()- m7 i: q2 f# E, `/ C) O, f' [
- {& H0 W3 S2 g8 m( i1 ^+ a9 e6 f1 e
- WSADATA wsaData;8 b' U+ H Z5 j' X' T" g8 d
- SOCKET sockClient;//客户端Socket# B* n" k+ }+ e+ T( q
- SOCKADDR_IN addrServer;//服务端地址
( j' e! C! C# E! R* ? M+ M - WSAStartup(MAKEWORD(2, 2), &wsaData);9 y, Y2 K! Z$ i. }+ @' H* ^
- char message[20] = "HelloSocket!";5 n" L8 R3 i9 h3 t
- //定义要连接的服务端地址* L# C' ~3 y1 C4 s! @2 s, g, r- x6 l
- 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)9 y& S. O8 T5 H+ \; V
- addrServer.sin_family = AF_INET;
, j& V. n. D6 g5 w+ Y9 O- {. D - addrServer.sin_port = htons(6000);//连接端口6000
% h" o" @/ w, V, O4 Z7 m. x - //新建客户端socket7 L6 h1 [' u, Y2 E6 N8 }
- sockClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);( r' l5 {9 T; a* T2 _% Q
- int s = 0;
: j- V+ _3 |7 k3 d, V" E: h - s = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));% j M6 p, l) T8 q9 J+ y, u
- 7 O+ i/ @, @8 Z( l9 G% I5 p
- while (1){/ [ _7 |- [+ j m" g1 S
- //发送数据6 S/ Z! ^. H. G
- int a = send(sockClient, message, strlen(message) + 1, 0); r4 v- M* v& H: D6 ^
- printf("to server:");3 U0 ?/ _" i0 A+ h4 F
- scanf("%s", message);
. `7 l; z* \$ a7 N% P6 [ - ) y5 r' |4 s% a+ B2 Q1 z/ Q
- }
% W8 w& Q3 E) @/ d ~ - //关闭socket: H1 b. O% ~8 v2 D$ a9 Q
- closesocket(sockClient);
; W9 j/ L* T9 m: i - WSACleanup();# U$ u3 Q) B3 d P2 U2 Q4 H
- }
复制代码 求懂的高手来解答一下。
" S' `* A8 C! G# V4 R! G谢谢了!
( \% I7 g9 Y* _7 \% R1 L5 g9 M
' @, C! Y, `. s4 ]4 X
8 ]6 F6 P5 A/ s0 \* D, r5 }; R# { O, k& O# }
|