Java客户端与C++服务器端通信

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetSocketAddress;
import java.net.Socket;

public class JavaClient {

public static void main(String [] args) throws InterruptedException, IOException
{
InetSocketAddress addr = new InetSocketAddress("127.0.0.1", 5678); //创建socket
Socket sock = new Socket();
sock.connect(addr);//连接服务器

BufferedReader is = null;
PrintWriter os = null;

os = new PrintWriter(sock.getOutputStream()); //管道的写工具
is = new BufferedReader(new InputStreamReader(sock.getInputStream()));  //管道的读工具

BufferedReader user = new BufferedReader(new InputStreamReader(System.in)); //从控制台读取命令的工具

System.out.print("client say:");
String msg = user.readLine();

while(!msg .equals("bye"))
{

os.println(msg);
os.flush();

String echo = is.readLine();
System.out.println(echo);

System.out.print("client say:");
msg = user.readLine();
}

os.close();
is.close();
sock.close();
}
}

#include <winsock2.h>
#include <process.h>
#pragma comment(lib, "ws2_32.lib")
#include <list>

std::list<SOCKET> client_list;

void thread_client(void * );

int main(int argc, char * argv[])
{
WSADATA wsadata;
WSAStartup(0x22, &wsadata);

unsigned short sPort = argc>1 ? atoi(argv[1]) : 5678;

int sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

if (sockfd == INVALID_SOCKET)
{
printf("fail to create socket.\n");
return 1;
}

sockaddr_in saddr;
saddr.sin_addr.s_addr = ADDR_ANY;
saddr.sin_port = htons(sPort);
saddr.sin_family = AF_INET;
if(bind(sockfd, (const sockaddr *)(&saddr), sizeof(saddr)))
{
printf("fail to bind, errno: %d.\n", GetLastError());
DWORD dw = WSAGetLastError();
return 2;
}

if (listen(sockfd, 5))
{
printf("fail to listen.\n");
return 3;
}

printf("Server is listening at [%d].\n"
"Wating for client to connect...\n"
, sPort);

for (;;)
{
sockaddr_in caddr;
int caddr_len = sizeof(caddr);
int client = accept(sockfd, (sockaddr *)&caddr, &caddr_len);

unsigned char * pAddr = (unsigned char *)&caddr.sin_addr.s_addr;

printf("[%d.%d.%d.%d : %d] coming.\n", pAddr[0], pAddr[1], pAddr[2], pAddr[3], ntohs(caddr.sin_port));
_beginthread(thread_client, 0, (void *)client);

client_list.push_back(client);

}
return 0;
}

void thread_client(void * args)
{
SOCKET client = (int)args;
sockaddr_in caddr;
int caddr_len = sizeof(caddr);
getpeername(client, (sockaddr *)&caddr, &caddr_len);
unsigned char * pAddr = (unsigned char *)&caddr.sin_addr.s_addr;
unsigned short usPort = ntohs(caddr.sin_port);

for (;;)
{
char szMsg [0x1000] = "";
if (0 >= recv(client, szMsg, sizeof(szMsg)-1, 0))
break;

char szEcho [0x1000] = "";
sprintf(szEcho, "Server Say: [%d.%d.%d.%d:%d] %s"
, pAddr[0], pAddr[1], pAddr[2], pAddr[3]
, usPort
, szMsg);

for (std::list<SOCKET>::iterator it = client_list.begin();
it != client_list.end();
it ++)
{
send(*it, szEcho, strlen(szEcho), 0);
}
}
}