C++、python和go语言实现的简单客户端服务器代码示例

/*
     File      : svr.cpp
     Author    : Mike
     E-Mail    : Mike_Zhang@live.com
*/

#include <iostream>
#include <boost/asio.hpp>

using boost::asio::ip::tcp;
enum {max_length = 1024};

typedef boost::shared_ptr<tcp::socket> socket_ptr;

int main()
{
    boost::asio::io_service io_service;
    tcp::acceptor a(io_service, tcp::endpoint(tcp::v4(), atoi("12345")));
    for (;;)
    {
        socket_ptr sock(new tcp::socket(io_service));
        a.accept(*sock);
        char data[max_length];
        boost::system::error_code error;
        size_t length = sock->read_some(boost::asio::buffer(data), error);
        data[length] = 0;
        std::cout<<data<<std::endl;
        sock->close();
    }
    return 0;
}

/*
     File      : cli.cpp
     Author    : Mike
     E-Mail    : Mike_Zhang@live.com
*/
#include <iostream>
#include <boost/asio.hpp>

using boost::asio::ip::tcp;
enum { max_length = 1024 };

int main(int argc, char* argv[])
{
    boost::asio::io_service io_service;
    tcp::resolver resolver(io_service);
    tcp::resolver::query query(tcp::v4(), "127.0.0.1","12345");
    tcp::resolver::iterator iterator = resolver.resolve(query);

    tcp::socket s(io_service);
    s.connect(*iterator);

    std::cout << "Please input: ";
    char request[max_length];
    std::cin.getline(request, max_length);
    size_t request_length = strlen(request);
    boost::asio::write(s, boost::asio::buffer(request, request_length));
    return 0;
}

'''
     File      : svr.py
     Author    : Mike
     E-Mail    : Mike_Zhang@live.com
'''
import socket,os
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
sock.bind(('127.0.0.1', 12345)) 
sock.listen(5) 
while True: 
    connection,address = sock.accept() 
    buf = connection.recv(1024) 
    print buf           
    connection.close()

'''
     File      : cli.py
     Author    : Mike
     E-Mail    : Mike_Zhang@live.com
'''
import socket 
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
sock.connect(('127.0.0.1', 12345)) 
#sock.send('Test\n') 
sock.send(raw_input("Please input : ")) 
sock.close()

/*
     File      : svr.go
     Author    : Mike
     E-Mail    : Mike_Zhang@live.com
*/
package main

import(
    "net"
    "fmt"
    "bufio"
)

func main() {
    client,err := net.Listen("tcp","127.0.0.1:12345")
    if err != nil {
        fmt.Printf("Error : %s\n",err.String())
    }
    for {
        if c, err := client.Accept(); err == nil {
            defer c.Close()
            line, _ := bufio.NewReader(c).ReadString('\n')
            fmt.Println(line)
        }
    }
}

/*
     File      : cli.go
     Author    : Mike
     E-Mail    : Mike_Zhang@live.com
*/
package main

import(
    "net"
    "fmt"
)

func main() {
    conn, err := net.Dial("tcp", "127.0.0.1:12345")
    if err != nil {
        fmt.Printf("Error : %s\n",err.String())
    }
    conn.Write([]byte("Just a test"))    
}