Java Client 与C++ Servertcp通信 demo

 java 客户端代码
 创建socket
 绑定

  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();
     }
 }

c++服务器端 ，之前的文章写过的，现在拷贝过来的

创建socket

绑定端口

监听端口

 // ConsoleServer.cpp : 定义控制台应用程序的入口点。
 //

 #include
 #include
 #pragma comment(lib, "ws2_32.lib")
 #include

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

通信结果显示，在eclipse里面