{"id":83824,"date":"2026-07-26T04:58:54","date_gmt":"2026-07-25T20:58:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/83824.html"},"modified":"2026-07-26T04:58:54","modified_gmt":"2026-07-25T20:58:54","slug":"c%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%9atcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e7%9a%84%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/83824.html","title":{"rendered":"C++\u7f51\u7edc\u7f16\u7a0b\uff1aTCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0"},"content":{"rendered":"

C++\u7f51\u7edc\u7f16\u7a0b：TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0<\/h2>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u4e00\u3001\u5b66\u4e60\u76ee\u6807\u4e0e\u91cd\u70b9<\/h3>\n

\u672c\u7ae0\u5c06\u6df1\u5165\u63a2\u8ba8C++\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u77e5\u8bc6，\u5e2e\u52a9\u4f60\u638c\u63e1TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0\u3002\u901a\u8fc7\u5b66\u4e60，\u4f60\u5c06\u80fd\u591f：<\/p>\n

  • \u7406\u89e3\u7f51\u7edc\u7f16\u7a0b\u7684\u57fa\u672c\u6982\u5ff5，\u638c\u63e1TCP\/IP\u534f\u8bae\u7684\u6838\u5fc3\u8981\u70b9<\/li>\n
  • \u5b66\u4f1a\u4f7f\u7528\u5957\u63a5\u5b57\u7f16\u7a0b，\u5b9e\u73b0\u7b80\u5355\u7684TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef<\/li>\n
  • \u7406\u89e3\u7f51\u7edc\u7f16\u7a0b\u4e2d\u7684\u9519\u8bef\u5904\u7406，\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027<\/li>\n
  • \u5b66\u4f1a\u4f7f\u7528Boost.Asio\u5e93，\u7b80\u5316\u7f51\u7edc\u7f16\u7a0b\u7684\u590d\u6742\u6d41\u7a0b<\/li>\n
  • \u57f9\u517b\u7f51\u7edc\u7f16\u7a0b\u601d\u7ef4，\u8bbe\u8ba1\u9ad8\u6548\u4e14\u7a33\u5b9a\u7684\u7f51\u7edc\u5e94\u7528<\/li>\n

    \u4e8c\u3001\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840<\/h3>\n

    2.1 TCP\/IP\u534f\u8bae\u7b80\u4ecb<\/h4>\n

    TCP\/IP（\u4f20\u8f93\u63a7\u5236\u534f\u8bae\/\u4e92\u8054\u7f51\u534f\u8bae）\u662f\u4e92\u8054\u7f51\u7684\u6838\u5fc3\u534f\u8bae，\u5b83\u63d0\u4f9b\u4e86\u53ef\u9760\u7684\u3001\u9762\u5411\u8fde\u63a5\u7684\u901a\u4fe1\u670d\u52a1\u3002TCP\u534f\u8bae\u786e\u4fdd\u6570\u636e\u7684\u53ef\u9760\u4f20\u8f93，\u901a\u8fc7\u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u8fde\u63a5，\u56db\u6b21\u6325\u624b\u5173\u95ed\u8fde\u63a5\u3002<\/p>\n

    2.2 \u5957\u63a5\u5b57\u7f16\u7a0b\u57fa\u7840<\/h4>\n

    \u5957\u63a5\u5b57（Socket）\u662f\u7f51\u7edc\u7f16\u7a0b\u7684\u57fa\u7840，\u5b83\u63d0\u4f9b\u4e86\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u63a5\u53e3\u3002\u5728C++\u4e2d，\u53ef\u4ee5\u4f7f\u7528<sys\/socket.h>\u5934\u6587\u4ef6\u63d0\u4f9b\u7684\u5957\u63a5\u5b57API\u8fdb\u884c\u7f51\u7edc\u7f16\u7a0b\u3002<\/p>\n

    \u4e09\u3001TCP\u670d\u52a1\u5668\u7684\u5b9e\u73b0<\/h3>\n

    3.1 \u57fa\u672c\u670d\u52a1\u5668\u7ed3\u6784<\/h4>\n

    #<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span>
    \n#<\/span>include<\/span> <cstring><\/span><\/span>
    \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
    \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
    \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
    \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span><\/p>\n

    const<\/span> int<\/span> PORT =<\/span> 8080<\/span>;<\/span>
    \nconst<\/span> int<\/span> BUFFER_SIZE =<\/span> 1024<\/span>;<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "=== TCP\u670d\u52a1\u5668\u793a\u4f8b ==="<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57<\/span>
    \n int<\/span> server_fd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>server_fd <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u5957\u63a5\u5b57\u521b\u5efa\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 2. \u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879，\u5141\u8bb8\u5730\u5740\u590d\u7528<\/span>
    \n int<\/span> opt =<\/span> 1<\/span>;<\/span>
    \n if<\/span> (<\/span>setsockopt<\/span>(<\/span>server_fd,<\/span> SOL_SOCKET,<\/span> SO_REUSEADDR,<\/span> &<\/span>opt,<\/span> sizeof<\/span>(<\/span>opt)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 3. \u7ed1\u5b9a\u5730\u5740\u548c\u7aef\u53e3<\/span>
    \n sockaddr_in address;<\/span>
    \n address.<\/span>sin_family =<\/span> AF_INET;<\/span>
    \n address.<\/span>sin_addr.<\/span>s_addr =<\/span> INADDR_ANY;<\/span>
    \n address.<\/span>sin_port =<\/span> htons<\/span>(<\/span>PORT)<\/span>;<\/span><\/p>\n

    if<\/span> (<\/span>bind<\/span>(<\/span>server_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>address,<\/span> sizeof<\/span>(<\/span>address)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u7ed1\u5b9a\u5730\u5740\u548c\u7aef\u53e3\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 4. \u76d1\u542c\u8fde\u63a5<\/span>
    \n if<\/span> (<\/span>listen<\/span>(<\/span>server_fd,<\/span> 3<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u76d1\u542c\u8fde\u63a5\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n std::<\/span>cout <<<\/span> "\u670d\u52a1\u5668\u6b63\u5728\u76d1\u542c\u7aef\u53e3 "<\/span> <<<\/span> PORT <<<\/span> "…"<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 5. \u63a5\u53d7\u8fde\u63a5<\/span>
    \n int<\/span> addrlen =<\/span> sizeof<\/span>(<\/span>address)<\/span>;<\/span>
    \n int<\/span> new_socket;<\/span><\/p>\n

    while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5…"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n new_socket =<\/span> accept<\/span>(<\/span>server_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>address,<\/span> (<\/span>socklen_t*<\/span>)<\/span>&<\/span>addrlen)<\/span>;<\/span>
    \n if<\/span> (<\/span>new_socket <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u63a5\u53d7\u8fde\u63a5\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n continue<\/span>;<\/span>
    \n }<\/span><\/p>\n

    char<\/span> client_ip[<\/span>INET_ADDRSTRLEN]<\/span>;<\/span>
    \n inet_ntop<\/span>(<\/span>AF_INET,<\/span> &<\/span>address.<\/span>sin_addr,<\/span> client_ip,<\/span> INET_ADDRSTRLEN)<\/span>;<\/span>
    \n std::<\/span>cout <<<\/span> "\u5ba2\u6237\u7aef "<\/span> <<<\/span> client_ip <<<\/span> " \u5df2\u8fde\u63a5"<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 6. \u5904\u7406\u8fde\u63a5<\/span>
    \n char<\/span> buffer[<\/span>BUFFER_SIZE]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
    \n int<\/span> valread =<\/span> read<\/span>(<\/span>new_socket,<\/span> buffer,<\/span> BUFFER_SIZE)<\/span>;<\/span>
    \n if<\/span> (<\/span>valread <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u8bfb\u53d6\u6570\u636e\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>new_socket)<\/span>;<\/span>
    \n continue<\/span>;<\/span>
    \n }<\/span><\/p>\n

    std::<\/span>cout <<<\/span> "\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6d88\u606f: "<\/span> <<<\/span> buffer <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 7. \u53d1\u9001\u54cd\u5e94<\/span>
    \n std::<\/span>string response =<\/span> "\u670d\u52a1\u5668\u5df2\u6536\u5230\u6d88\u606f: "<\/span> +<\/span> std::<\/span>string<\/span>(<\/span>buffer)<\/span>;<\/span>
    \n send<\/span>(<\/span>new_socket,<\/span> response.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> response.<\/span>length<\/span>(<\/span>)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
    \n std::<\/span>cout <<<\/span> "\u54cd\u5e94\u5df2\u53d1\u9001"<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 8. \u5173\u95ed\u8fde\u63a5<\/span>
    \n close<\/span>(<\/span>new_socket)<\/span>;<\/span>
    \n std::<\/span>cout <<<\/span> "\u5ba2\u6237\u7aef\u8fde\u63a5\u5df2\u5173\u95ed"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 9. \u5173\u95ed\u670d\u52a1\u5668\u5957\u63a5\u5b57<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    3.2 \u591a\u7ebf\u7a0b\u670d\u52a1\u5668<\/h4>\n

    #<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span>
    \n#<\/span>include<\/span> <cstring><\/span><\/span>
    \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
    \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
    \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
    \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
    \n#<\/span>include<\/span> <thread><\/span><\/span>
    \n#<\/span>include<\/span> <vector><\/span><\/span><\/p>\n

    const<\/span> int<\/span> PORT =<\/span> 8080<\/span>;<\/span>
    \nconst<\/span> int<\/span> BUFFER_SIZE =<\/span> 1024<\/span>;<\/span><\/p>\n

    void<\/span> handleClient<\/span>(<\/span>int<\/span> client_socket,<\/span> const<\/span> std::<\/span>string&<\/span> client_ip)<\/span> {<\/span>
    \n char<\/span> buffer[<\/span>BUFFER_SIZE]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span><\/p>\n

    while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n int<\/span> valread =<\/span> read<\/span>(<\/span>client_socket,<\/span> buffer,<\/span> BUFFER_SIZE)<\/span>;<\/span>
    \n if<\/span> (<\/span>valread <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u5ba2\u6237\u7aef "<\/span> <<<\/span> client_ip <<<\/span> " \u8bfb\u53d6\u6570\u636e\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n break<\/span>;<\/span>
    \n }<\/span> else<\/span> if<\/span> (<\/span>valread ==<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "\u5ba2\u6237\u7aef "<\/span> <<<\/span> client_ip <<<\/span> " \u5df2\u65ad\u5f00\u8fde\u63a5"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n break<\/span>;<\/span>
    \n }<\/span><\/p>\n

    std::<\/span>cout <<<\/span> "\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef "<\/span> <<<\/span> client_ip <<<\/span> " \u7684\u6d88\u606f: "<\/span> <<<\/span> buffer <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    std::<\/span>string response =<\/span> "\u670d\u52a1\u5668\u5df2\u6536\u5230\u6d88\u606f: "<\/span> +<\/span> std::<\/span>string<\/span>(<\/span>buffer)<\/span>;<\/span>
    \n send<\/span>(<\/span>client_socket,<\/span> response.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> response.<\/span>length<\/span>(<\/span>)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
    \n std::<\/span>cout <<<\/span> "\u54cd\u5e94\u5df2\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef "<\/span> <<<\/span> client_ip <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    memset<\/span>(<\/span>buffer,<\/span> 0<\/span>,<\/span> BUFFER_SIZE)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    close<\/span>(<\/span>client_socket)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "=== \u591a\u7ebf\u7a0bTCP\u670d\u52a1\u5668\u793a\u4f8b ==="<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    int<\/span> server_fd =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>server_fd <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u5957\u63a5\u5b57\u521b\u5efa\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    int<\/span> opt =<\/span> 1<\/span>;<\/span>
    \n if<\/span> (<\/span>setsockopt<\/span>(<\/span>server_fd,<\/span> SOL_SOCKET,<\/span> SO_REUSEADDR,<\/span> &<\/span>opt,<\/span> sizeof<\/span>(<\/span>opt)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u8bbe\u7f6e\u5957\u63a5\u5b57\u9009\u9879\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    sockaddr_in address;<\/span>
    \n address.<\/span>sin_family =<\/span> AF_INET;<\/span>
    \n address.<\/span>sin_addr.<\/span>s_addr =<\/span> INADDR_ANY;<\/span>
    \n address.<\/span>sin_port =<\/span> htons<\/span>(<\/span>PORT)<\/span>;<\/span><\/p>\n

    if<\/span> (<\/span>bind<\/span>(<\/span>server_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>address,<\/span> sizeof<\/span>(<\/span>address)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u7ed1\u5b9a\u5730\u5740\u548c\u7aef\u53e3\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    if<\/span> (<\/span>listen<\/span>(<\/span>server_fd,<\/span> 3<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u76d1\u542c\u8fde\u63a5\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>server_fd)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n std::<\/span>cout <<<\/span> "\u670d\u52a1\u5668\u6b63\u5728\u76d1\u542c\u7aef\u53e3 "<\/span> <<<\/span> PORT <<<\/span> "…"<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    int<\/span> addrlen =<\/span> sizeof<\/span>(<\/span>address)<\/span>;<\/span>
    \n int<\/span> new_socket;<\/span>
    \n std::<\/span>vector<<\/span>std::<\/span>thread><\/span> client_threads;<\/span><\/p>\n

    while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5…"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n new_socket =<\/span> accept<\/span>(<\/span>server_fd,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>address,<\/span> (<\/span>socklen_t*<\/span>)<\/span>&<\/span>addrlen)<\/span>;<\/span>
    \n if<\/span> (<\/span>new_socket <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u63a5\u53d7\u8fde\u63a5\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n continue<\/span>;<\/span>
    \n }<\/span><\/p>\n

    char<\/span> client_ip[<\/span>INET_ADDRSTRLEN]<\/span>;<\/span>
    \n inet_ntop<\/span>(<\/span>AF_INET,<\/span> &<\/span>address.<\/span>sin_addr,<\/span> client_ip,<\/span> INET_ADDRSTRLEN)<\/span>;<\/span>
    \n std::<\/span>cout <<<\/span> "\u5ba2\u6237\u7aef "<\/span> <<<\/span> client_ip <<<\/span> " \u5df2\u8fde\u63a5"<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    client_threads.<\/span>emplace_back<\/span>(<\/span>handleClient,<\/span> new_socket,<\/span> client_ip)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    for<\/span> (<\/span>auto<\/span>&<\/span> thread :<\/span> client_threads)<\/span> {<\/span>
    \n if<\/span> (<\/span>thread.<\/span>joinable<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
    \n thread.<\/span>join<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    close<\/span>(<\/span>server_fd)<\/span>;<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u56db\u3001TCP\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0<\/h3>\n

    4.1 \u57fa\u672c\u5ba2\u6237\u7aef\u7ed3\u6784<\/h4>\n

    #<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span>
    \n#<\/span>include<\/span> <cstring><\/span><\/span>
    \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
    \n#<\/span>include<\/span> <netinet\/in.h><\/span><\/span>
    \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
    \n#<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
    \n#<\/span>include<\/span> <thread><\/span><\/span><\/p>\n

    const<\/span> int<\/span> PORT =<\/span> 8080<\/span>;<\/span>
    \nconst<\/span> int<\/span> BUFFER_SIZE =<\/span> 1024<\/span>;<\/span>
    \nconst<\/span> std::<\/span>string SERVER_IP =<\/span> "127.0.0.1"<\/span>;<\/span><\/p>\n

    void<\/span> receiveMessages<\/span>(<\/span>int<\/span> sock)<\/span> {<\/span>
    \n char<\/span> buffer[<\/span>BUFFER_SIZE]<\/span> =<\/span> {<\/span>0<\/span>}<\/span>;<\/span>
    \n while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n int<\/span> valread =<\/span> read<\/span>(<\/span>sock,<\/span> buffer,<\/span> BUFFER_SIZE)<\/span>;<\/span>
    \n if<\/span> (<\/span>valread <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u8bfb\u53d6\u670d\u52a1\u5668\u54cd\u5e94\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n break<\/span>;<\/span>
    \n }<\/span> else<\/span> if<\/span> (<\/span>valread ==<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "\u670d\u52a1\u5668\u5df2\u65ad\u5f00\u8fde\u63a5"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n break<\/span>;<\/span>
    \n }<\/span><\/p>\n

    std::<\/span>cout <<<\/span> "\u670d\u52a1\u5668\u54cd\u5e94: "<\/span> <<<\/span> buffer <<<\/span> std::<\/span>endl;<\/span>
    \n memset<\/span>(<\/span>buffer,<\/span> 0<\/span>,<\/span> BUFFER_SIZE)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "=== TCP\u5ba2\u6237\u7aef\u793a\u4f8b ==="<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 1. \u521b\u5efa\u5957\u63a5\u5b57<\/span>
    \n int<\/span> sock =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>sock <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u5957\u63a5\u5b57\u521b\u5efa\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 2. \u914d\u7f6e\u670d\u52a1\u5668\u5730\u5740<\/span>
    \n sockaddr_in serv_addr;<\/span>
    \n serv_addr.<\/span>sin_family =<\/span> AF_INET;<\/span>
    \n serv_addr.<\/span>sin_port =<\/span> htons<\/span>(<\/span>PORT)<\/span>;<\/span><\/p>\n

    if<\/span> (<\/span>inet_pton<\/span>(<\/span>AF_INET,<\/span> SERVER_IP.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> &<\/span>serv_addr.<\/span>sin_addr)<\/span> <=<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u65e0\u6548\u7684\u670d\u52a1\u5668\u5730\u5740"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>sock)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 3. \u8fde\u63a5\u670d\u52a1\u5668<\/span>
    \n if<\/span> (<\/span>connect<\/span>(<\/span>sock,<\/span> (<\/span>struct<\/span> sockaddr<\/span>*<\/span>)<\/span>&<\/span>serv_addr,<\/span> sizeof<\/span>(<\/span>serv_addr)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u8fde\u63a5\u670d\u52a1\u5668\u5931\u8d25"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n close<\/span>(<\/span>sock)<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n std::<\/span>cout <<<\/span> "\u5df2\u8fde\u63a5\u5230\u670d\u52a1\u5668 "<\/span> <<<\/span> SERVER_IP <<<\/span> ":"<\/span> <<<\/span> PORT <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    \/\/ 4. \u63a5\u6536\u670d\u52a1\u5668\u6d88\u606f\u7684\u7ebf\u7a0b<\/span>
    \n std::<\/span>thread recv_thread<\/span>(<\/span>receiveMessages,<\/span> sock)<\/span>;<\/span>
    \n recv_thread.<\/span>detach<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ 5. \u53d1\u9001\u6d88\u606f<\/span>
    \n std::<\/span>string message;<\/span>
    \n while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "\u8bf7\u8f93\u5165\u6d88\u606f（\u8f93\u5165\\\\"quit\\\\"\u9000\u51fa）: "<\/span>;<\/span>
    \n std::<\/span>getline<\/span>(<\/span>std::<\/span>cin,<\/span> message)<\/span>;<\/span><\/p>\n

    if<\/span> (<\/span>message ==<\/span> "quit"<\/span>)<\/span> {<\/span>
    \n break<\/span>;<\/span>
    \n }<\/span><\/p>\n

    send<\/span>(<\/span>sock,<\/span> message.<\/span>c_str<\/span>(<\/span>)<\/span>,<\/span> message.<\/span>length<\/span>(<\/span>)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ 6. \u5173\u95ed\u5957\u63a5\u5b57<\/span>
    \n close<\/span>(<\/span>sock)<\/span>;<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u4e94\u3001Boost.Asio\u5e93\u7684\u4f7f\u7528<\/h3>\n

    5.1 Boost.Asio\u57fa\u7840<\/h4>\n

    Boost.Asio\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u7f51\u7edc\u7f16\u7a0b\u5e93，\u5b83\u7b80\u5316\u4e86\u7f51\u7edc\u7f16\u7a0b\u7684\u590d\u6742\u6d41\u7a0b，\u63d0\u4f9b\u4e86\u5f02\u6b65\u3001\u540c\u6b65\u3001\u5355\u7ebf\u7a0b\u548c\u591a\u7ebf\u7a0b\u7684\u7f16\u7a0b\u6a21\u578b\u3002<\/p>\n

    5.2 \u4f7f\u7528Boost.Asio\u5b9e\u73b0TCP\u670d\u52a1\u5668<\/h4>\n

    #<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span>
    \n#<\/span>include<\/span> <boost\/asio.hpp><\/span><\/span><\/p>\n

    using<\/span> boost::<\/span>asio::<\/span>ip::<\/span>tcp;<\/span>
    \nusing<\/span> namespace<\/span> std;<\/span><\/p>\n

    const<\/span> int<\/span> PORT =<\/span> 8080<\/span>;<\/span><\/p>\n

    void<\/span> handleClient<\/span>(<\/span>tcp::<\/span>socket socket)<\/span> {<\/span>
    \n try<\/span> {<\/span>
    \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span><\/p>\n

    \/\/ \u8bfb\u53d6\u5ba2\u6237\u7aef\u6d88\u606f<\/span>
    \n size_t len =<\/span> socket.<\/span>read_some<\/span>(<\/span>boost::<\/span>asio::<\/span>buffer<\/span>(<\/span>buffer)<\/span>)<\/span>;<\/span>
    \n string message<\/span>(<\/span>buffer,<\/span> len)<\/span>;<\/span>
    \n cout <<<\/span> "\u6536\u5230\u5ba2\u6237\u7aef\u6d88\u606f: "<\/span> <<<\/span> message <<<\/span> endl;<\/span><\/p>\n

    \/\/ \u53d1\u9001\u54cd\u5e94<\/span>
    \n string response =<\/span> "\u670d\u52a1\u5668\u5df2\u6536\u5230\u6d88\u606f: "<\/span> +<\/span> message;<\/span>
    \n boost::<\/span>asio::<\/span>write<\/span>(<\/span>socket,<\/span> boost::<\/span>asio::<\/span>buffer<\/span>(<\/span>response)<\/span>)<\/span>;<\/span>
    \n cout <<<\/span> "\u54cd\u5e94\u5df2\u53d1\u9001"<\/span> <<<\/span> endl;<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> e)<\/span> {<\/span>
    \n cerr <<<\/span> "\u5904\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u51fa\u9519: "<\/span> <<<\/span> e.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n cout <<<\/span> "=== Boost.Asio TCP\u670d\u52a1\u5668\u793a\u4f8b ==="<\/span> <<<\/span> endl;<\/span><\/p>\n

    try<\/span> {<\/span>
    \n boost::<\/span>asio::<\/span>io_service io_service;<\/span><\/p>\n

    \/\/ \u521b\u5efaacceptor<\/span>
    \n tcp::<\/span>acceptor acceptor<\/span>(<\/span>io_service,<\/span> tcp::<\/span>endpoint<\/span>(<\/span>tcp::<\/span>v4<\/span>(<\/span>)<\/span>,<\/span> PORT)<\/span>)<\/span>;<\/span>
    \n cout <<<\/span> "\u670d\u52a1\u5668\u6b63\u5728\u76d1\u542c\u7aef\u53e3 "<\/span> <<<\/span> PORT <<<\/span> "…"<\/span> <<<\/span> endl;<\/span><\/p>\n

    while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n \/\/ \u63a5\u53d7\u8fde\u63a5<\/span>
    \n tcp::<\/span>socket socket<\/span>(<\/span>io_service)<\/span>;<\/span>
    \n acceptor.<\/span>accept<\/span>(<\/span>socket)<\/span>;<\/span><\/p>\n

    \/\/ \u5904\u7406\u8fde\u63a5<\/span>
    \n thread t<\/span>(<\/span>handleClient,<\/span> move<\/span>(<\/span>socket)<\/span>)<\/span>;<\/span>
    \n t.<\/span>detach<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> e)<\/span> {<\/span>
    \n cerr <<<\/span> "\u670d\u52a1\u5668\u51fa\u9519: "<\/span> <<<\/span> e.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    5.3 \u4f7f\u7528Boost.Asio\u5b9e\u73b0TCP\u5ba2\u6237\u7aef<\/h4>\n

    #<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span>
    \n#<\/span>include<\/span> <boost\/asio.hpp><\/span><\/span><\/p>\n

    using<\/span> boost::<\/span>asio::<\/span>ip::<\/span>tcp;<\/span>
    \nusing<\/span> namespace<\/span> std;<\/span><\/p>\n

    const<\/span> int<\/span> PORT =<\/span> 8080<\/span>;<\/span>
    \nconst<\/span> string SERVER_IP =<\/span> "127.0.0.1"<\/span>;<\/span><\/p>\n

    void<\/span> receiveMessages<\/span>(<\/span>tcp::<\/span>socket&<\/span> socket)<\/span> {<\/span>
    \n try<\/span> {<\/span>
    \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span>
    \n while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n size_t len =<\/span> socket.<\/span>read_some<\/span>(<\/span>boost::<\/span>asio::<\/span>buffer<\/span>(<\/span>buffer)<\/span>)<\/span>;<\/span>
    \n string response<\/span>(<\/span>buffer,<\/span> len)<\/span>;<\/span>
    \n cout <<<\/span> "\u670d\u52a1\u5668\u54cd\u5e94: "<\/span> <<<\/span> response <<<\/span> endl;<\/span>
    \n }<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> e)<\/span> {<\/span>
    \n cerr <<<\/span> "\u8bfb\u53d6\u670d\u52a1\u5668\u54cd\u5e94\u65f6\u51fa\u9519: "<\/span> <<<\/span> e.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n cout <<<\/span> "=== Boost.Asio TCP\u5ba2\u6237\u7aef\u793a\u4f8b ==="<\/span> <<<\/span> endl;<\/span><\/p>\n

    try<\/span> {<\/span>
    \n boost::<\/span>asio::<\/span>io_service io_service;<\/span><\/p>\n

    \/\/ \u89e3\u6790\u670d\u52a1\u5668\u5730\u5740<\/span>
    \n tcp::<\/span>resolver resolver<\/span>(<\/span>io_service)<\/span>;<\/span>
    \n tcp::<\/span>resolver::<\/span>query query<\/span>(<\/span>tcp::<\/span>v4<\/span>(<\/span>)<\/span>,<\/span> SERVER_IP,<\/span> to_string<\/span>(<\/span>PORT)<\/span>)<\/span>;<\/span>
    \n tcp::<\/span>resolver::<\/span>iterator endpoint_iterator =<\/span> resolver.<\/span>resolve<\/span>(<\/span>query)<\/span>;<\/span><\/p>\n

    \/\/ \u8fde\u63a5\u670d\u52a1\u5668<\/span>
    \n tcp::<\/span>socket socket<\/span>(<\/span>io_service)<\/span>;<\/span>
    \n boost::<\/span>asio::<\/span>connect<\/span>(<\/span>socket,<\/span> endpoint_iterator)<\/span>;<\/span>
    \n cout <<<\/span> "\u5df2\u8fde\u63a5\u5230\u670d\u52a1\u5668 "<\/span> <<<\/span> SERVER_IP <<<\/span> ":"<\/span> <<<\/span> PORT <<<\/span> endl;<\/span><\/p>\n

    \/\/ \u63a5\u6536\u670d\u52a1\u5668\u6d88\u606f\u7684\u7ebf\u7a0b<\/span>
    \n thread t<\/span>(<\/span>receiveMessages,<\/span> ref<\/span>(<\/span>socket)<\/span>)<\/span>;<\/span>
    \n t.<\/span>detach<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u53d1\u9001\u6d88\u606f<\/span>
    \n string message;<\/span>
    \n while<\/span> (<\/span>true<\/span>)<\/span> {<\/span>
    \n cout <<<\/span> "\u8bf7\u8f93\u5165\u6d88\u606f（\u8f93\u5165\\\\"quit\\\\"\u9000\u51fa）: "<\/span>;<\/span>
    \n getline<\/span>(<\/span>cin,<\/span> message)<\/span>;<\/span><\/p>\n

    if<\/span> (<\/span>message ==<\/span> "quit"<\/span>)<\/span> {<\/span>
    \n break<\/span>;<\/span>
    \n }<\/span><\/p>\n

    boost::<\/span>asio::<\/span>write<\/span>(<\/span>socket,<\/span> boost::<\/span>asio::<\/span>buffer<\/span>(<\/span>message)<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> e)<\/span> {<\/span>
    \n cerr <<<\/span> "\u5ba2\u6237\u7aef\u51fa\u9519: "<\/span> <<<\/span> e.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u516d\u3001\u7efc\u5408\u6848\u4f8b：\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u804a\u5929\u670d\u52a1\u5668<\/h3>\n

    6.1 \u9879\u76ee\u7ed3\u6784<\/h4>\n

    ChatServer\/
    \n\u251c\u2500\u2500 include\/
    \n\u2502 \u2514\u2500\u2500 ChatServer.h
    \n\u251c\u2500\u2500 src\/
    \n\u2502 \u251c\u2500\u2500 ChatServer.cpp
    \n\u2502 \u2514\u2500\u2500 main.cpp
    \n\u2514\u2500\u2500 build\/<\/p>\n

    6.2 \u6838\u5fc3\u4ee3\u7801<\/h4>\n

    \/\/ include\/ChatServer.h<\/span>
    \n#<\/span>ifndef<\/span> CHATSERVER_H<\/span><\/span>
    \n#<\/span>define<\/span> CHATSERVER_H<\/span><\/span><\/p>\n

    #<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span>
    \n#<\/span>include<\/span> <vector><\/span><\/span>
    \n#<\/span>include<\/span> <thread><\/span><\/span>
    \n#<\/span>include<\/span> <mutex><\/span><\/span>
    \n#<\/span>include<\/span> <boost\/asio.hpp><\/span><\/span><\/p>\n

    using<\/span> boost::<\/span>asio::<\/span>ip::<\/span>tcp;<\/span>
    \nusing<\/span> namespace<\/span> std;<\/span><\/p>\n

    class<\/span> ChatServer<\/span> {<\/span>
    \nprivate<\/span>:<\/span>
    \n boost::<\/span>asio::<\/span>io_service io_service;<\/span>
    \n tcp::<\/span>acceptor acceptor;<\/span>
    \n vector<<\/span>shared_ptr<<\/span>tcp::<\/span>socket>><\/span> clients;<\/span>
    \n mutex clients_mutex;<\/span><\/p>\n

    void<\/span> acceptConnection<\/span>(<\/span>)<\/span>;<\/span>
    \n void<\/span> handleClient<\/span>(<\/span>shared_ptr<<\/span>tcp::<\/span>socket><\/span> socket)<\/span>;<\/span>
    \n void<\/span> broadcastMessage<\/span>(<\/span>const<\/span> string&<\/span> message,<\/span> const<\/span> tcp::<\/span>endpoint&<\/span> sender_endpoint)<\/span>;<\/span><\/p>\n

    public<\/span>:<\/span>
    \n ChatServer<\/span>(<\/span>int<\/span> port)<\/span>;<\/span>
    \n void<\/span> run<\/span>(<\/span>)<\/span>;<\/span>
    \n}<\/span>;<\/span><\/p>\n

    #<\/span>endif<\/span> \/\/ CHATSERVER_H<\/span><\/span><\/p>\n

    \/\/ src\/ChatServer.cpp<\/span>
    \n#<\/span>include<\/span> "ChatServer.h"<\/span><\/span><\/p>\n

    ChatServer<\/span>::<\/span>ChatServer<\/span>(<\/span>int<\/span> port)<\/span> :<\/span> acceptor<\/span>(<\/span>io_service,<\/span> tcp::<\/span>endpoint<\/span>(<\/span>tcp::<\/span>v4<\/span>(<\/span>)<\/span>,<\/span> port)<\/span>)<\/span> {<\/span>
    \n}<\/span><\/p>\n

    void<\/span> ChatServer<\/span>::<\/span>run<\/span>(<\/span>)<\/span> {<\/span>
    \n cout <<<\/span> "\u804a\u5929\u670d\u52a1\u5668\u6b63\u5728\u8fd0\u884c…"<\/span> <<<\/span> endl;<\/span>
    \n acceptConnection<\/span>(<\/span>)<\/span>;<\/span>
    \n io_service.<\/span>run<\/span>(<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    void<\/span> ChatServer<\/span>::<\/span>acceptConnection<\/span>(<\/span>)<\/span> {<\/span>
    \n shared_ptr<<\/span>tcp::<\/span>socket><\/span> socket =<\/span> make_shared<\/span><<\/span>tcp::<\/span>socket><\/span><\/span><\/span>(<\/span>io_service)<\/span>;<\/span>
    \n acceptor.<\/span>async_accept<\/span>(<\/span>*<\/span>socket,<\/span> [<\/span>this<\/span>,<\/span> socket]<\/span>(<\/span>const<\/span> boost::<\/span>system::<\/span>error_code&<\/span> ec)<\/span> {<\/span>
    \n if<\/span> (<\/span>!<\/span>ec)<\/span> {<\/span>
    \n cout <<<\/span> "\u5ba2\u6237\u7aef "<\/span> <<<\/span> socket-><\/span>remote_endpoint<\/span>(<\/span>)<\/span> <<<\/span> " \u5df2\u8fde\u63a5"<\/span> <<<\/span> endl;<\/span><\/p>\n

    {<\/span>
    \n lock_guard<<\/span>mutex><\/span> lock<\/span>(<\/span>clients_mutex)<\/span>;<\/span>
    \n clients.<\/span>push_back<\/span>(<\/span>socket)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    handleClient<\/span>(<\/span>socket)<\/span>;<\/span>
    \n }<\/span> else<\/span> {<\/span>
    \n cerr <<<\/span> "\u63a5\u53d7\u8fde\u63a5\u5931\u8d25: "<\/span> <<<\/span> ec.<\/span>message<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>
    \n }<\/span><\/p>\n

    acceptConnection<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    void<\/span> ChatServer<\/span>::<\/span>handleClient<\/span>(<\/span>shared_ptr<<\/span>tcp::<\/span>socket><\/span> socket)<\/span> {<\/span>
    \n auto<\/span> endpoint =<\/span> socket-><\/span>remote_endpoint<\/span>(<\/span>)<\/span>;<\/span>
    \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span><\/p>\n

    socket-><\/span>async_read_some<\/span>(<\/span>boost::<\/span>asio::<\/span>buffer<\/span>(<\/span>buffer)<\/span>,<\/span> [<\/span>this<\/span>,<\/span> socket,<\/span> endpoint]<\/span>(<\/span>const<\/span> boost::<\/span>system::<\/span>error_code&<\/span> ec,<\/span> size_t bytes_transferred)<\/span> {<\/span>
    \n if<\/span> (<\/span>!<\/span>ec)<\/span> {<\/span>
    \n string message<\/span>(<\/span>buffer,<\/span> bytes_transferred)<\/span>;<\/span>
    \n cout <<<\/span> "\u6536\u5230\u6765\u81ea "<\/span> <<<\/span> endpoint <<<\/span> " \u7684\u6d88\u606f: "<\/span> <<<\/span> message <<<\/span> endl;<\/span>
    \n broadcastMessage<\/span>(<\/span>message,<\/span> endpoint)<\/span>;<\/span>
    \n handleClient<\/span>(<\/span>socket)<\/span>;<\/span>
    \n }<\/span> else<\/span> {<\/span>
    \n cout <<<\/span> "\u5ba2\u6237\u7aef "<\/span> <<<\/span> endpoint <<<\/span> " \u5df2\u65ad\u5f00\u8fde\u63a5"<\/span> <<<\/span> endl;<\/span><\/p>\n

    {<\/span>
    \n lock_guard<<\/span>mutex><\/span> lock<\/span>(<\/span>clients_mutex)<\/span>;<\/span>
    \n clients.<\/span>erase<\/span>(<\/span>remove<\/span>(<\/span>clients.<\/span>begin<\/span>(<\/span>)<\/span>,<\/span> clients.<\/span>end<\/span>(<\/span>)<\/span>,<\/span> socket)<\/span>,<\/span> clients.<\/span>end<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n }<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    void<\/span> ChatServer<\/span>::<\/span>broadcastMessage<\/span>(<\/span>const<\/span> string&<\/span> message,<\/span> const<\/span> tcp::<\/span>endpoint&<\/span> sender_endpoint)<\/span> {<\/span>
    \n string full_message =<\/span> sender_endpoint.<\/span>address<\/span>(<\/span>)<\/span>.<\/span>to_string<\/span>(<\/span>)<\/span> +<\/span> ":"<\/span> +<\/span> to_string<\/span>(<\/span>sender_endpoint.<\/span>port<\/span>(<\/span>)<\/span>)<\/span> +<\/span> " \u8bf4: "<\/span> +<\/span> message;<\/span><\/p>\n

    {<\/span>
    \n lock_guard<<\/span>mutex><\/span> lock<\/span>(<\/span>clients_mutex)<\/span>;<\/span>
    \n for<\/span> (<\/span>auto<\/span> socket :<\/span> clients)<\/span> {<\/span>
    \n if<\/span> (<\/span>socket-><\/span>remote_endpoint<\/span>(<\/span>)<\/span> !=<\/span> sender_endpoint)<\/span> {<\/span>
    \n boost::<\/span>asio::<\/span>async_write<\/span>(<\/span>*<\/span>socket,<\/span> boost::<\/span>asio::<\/span>buffer<\/span>(<\/span>full_message)<\/span>,<\/span> [<\/span>]<\/span>(<\/span>const<\/span> boost::<\/span>system::<\/span>error_code&<\/span> ec,<\/span> size_t \/*bytes_transferred*\/<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>ec)<\/span> {<\/span>
    \n cerr <<<\/span> "\u53d1\u9001\u6d88\u606f\u5931\u8d25: "<\/span> <<<\/span> ec.<\/span>message<\/span>(<\/span>)<\/span> <<<\/span> endl;<\/span>
    \n }<\/span>
    \n }<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    \/\/ src\/main.cpp<\/span>
    \n#<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> "ChatServer.h"<\/span><\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n std::<\/span>cout <<<\/span> "=== \u7b80\u5355\u7684\u804a\u5929\u670d\u52a1\u5668 ==="<\/span> <<<\/span> std::<\/span>endl;<\/span><\/p>\n

    try<\/span> {<\/span>
    \n const<\/span> int<\/span> PORT =<\/span> 8080<\/span>;<\/span>
    \n ChatServer server<\/span>(<\/span>PORT)<\/span>;<\/span>
    \n server.<\/span>run<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> e)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "\u670d\u52a1\u5668\u51fa\u9519: "<\/span> <<<\/span> e.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span><\/p>\n

    return<\/span> 0<\/span>;<\/span>
    \n}<\/span><\/p>\n

    6.3 \u9879\u76ee\u6784\u5efa\u4e0e\u8fd0\u884c<\/h4>\n

    # \u521b\u5efa\u6784\u5efa\u76ee\u5f55<\/span>
    \nmkdir<\/span> -p<\/span> build &&<\/span> cd<\/span> build<\/p>\n

    # \u914d\u7f6eCMake<\/span>
    \ncmake -DCMAKE_BUILD_TYPE<\/span>=<\/span>Release ..<\/span><\/p>\n

    # \u7f16\u8bd1\u9879\u76ee<\/span>
    \ncmake –build<\/span> .<\/span> –config<\/span> Release<\/p>\n

    # \u8fd0\u884c\u670d\u52a1\u5668<\/span>
    \n.\/ChatServer<\/p>\n

    # \u5728\u53e6\u4e00\u4e2a\u7ec8\u7aef\u8fd0\u884c\u5ba2\u6237\u7aef<\/span>
    \n.\/ChatClient<\/p>\n

    \u4e03\u3001\u603b\u7ed3\u4e0e\u7ec3\u4e60<\/h3>\n

    7.1 \u672c\u7ae0\u603b\u7ed3<\/h4>\n

    \u672c\u7ae0\u4ecb\u7ecd\u4e86C++\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u77e5\u8bc6，\u5305\u62ec：<\/p>\n

  • \u7f51\u7edc\u7f16\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u4e0eTCP\/IP\u534f\u8bae<\/li>\n
  • \u5957\u63a5\u5b57\u7f16\u7a0b\u57fa\u7840<\/li>\n
  • TCP\u670d\u52a1\u5668\u7684\u5b9e\u73b0<\/li>\n
  • \u591a\u7ebf\u7a0b\u670d\u52a1\u5668\u7684\u5b9e\u73b0<\/li>\n
  • TCP\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0<\/li>\n
  • Boost.Asio\u5e93\u7684\u4f7f\u7528<\/li>\n
  • \u7efc\u5408\u6848\u4f8b：\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u804a\u5929\u670d\u52a1\u5668<\/li>\n

    7.2 \u7ec3\u4e60\u9898<\/h4>\n
  • \u5199\u4e00\u4e2a\u7a0b\u5e8f，\u4f7f\u7528\u5957\u63a5\u5b57\u7f16\u7a0b\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684HTTP\u670d\u52a1\u5668\u3002<\/li>\n
  • \u7f16\u5199\u4e00\u4e2a\u51fd\u6570，\u4f7f\u7528Boost.Asio\u5e93\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684FTP\u5ba2\u6237\u7aef\u3002<\/li>\n
  • \u5199\u4e00\u4e2a\u7a0b\u5e8f，\u4f7f\u7528\u591a\u7ebf\u7a0b\u5b9e\u73b0\u4e00\u4e2a\u9ad8\u5e76\u53d1\u7684\u7f51\u7edc\u670d\u52a1\u5668\u3002<\/li>\n
  • \u5b9e\u73b0\u4e00\u4e2a\u7c7b，\u4f7f\u7528Boost.Asio\u5e93\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u3002<\/li>\n
  • \u5199\u4e00\u4e2a\u7a0b\u5e8f，\u4f7f\u7528\u7f51\u7edc\u7f16\u7a0b\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u65f6\u6570\u636e\u4f20\u8f93\u7cfb\u7edf\u3002<\/li>\n

    7.3 \u8fdb\u9636\u6311\u6218<\/h4>\n
  • \u7814\u7a76\u5982\u4f55\u4f7f\u7528C++\u7684\u65e0\u9501\u6570\u636e\u7ed3\u6784\u4f18\u5316\u7f51\u7edc\u670d\u52a1\u5668\u7684\u6027\u80fd\u3002<\/li>\n
  • \u5b66\u4e60\u5982\u4f55\u4f7f\u7528C++\u7684\u534f\u7a0b（C++20\u53ca\u4ee5\u540e）\u4e0e\u7f51\u7edc\u7f16\u7a0b\u7ed3\u5408\u3002<\/li>\n
  • \u7814\u7a76\u5982\u4f55\u4f7f\u7528C++\u7684\u5e76\u53d1\u7f16\u7a0b\u4f18\u5316\u4e00\u4e2a\u5927\u578b\u7f51\u7edc\u5e94\u7528\u3002<\/li>\n
  • \u5b66\u4e60\u5982\u4f55\u4f7f\u7528C++\u7684\u52a0\u5bc6\u5e93（\u5982OpenSSL）\u5b9e\u73b0\u5b89\u5168\u7684\u7f51\u7edc\u901a\u4fe1\u3002<\/li>\n
  • \u7814\u7a76\u5982\u4f55\u4f7f\u7528C++\u7684\u7f51\u7edc\u7f16\u7a0b\u5b9e\u73b0\u4e00\u4e2a\u9ad8\u53ef\u7528\u6027\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"

    C\u7f51\u7edc\u7f16\u7a0b：TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0\u4e00\u3001\u5b66\u4e60\u76ee\u6807\u4e0e\u91cd\u70b9
    \n\u672c\u7ae0\u5c06\u6df1\u5165\u63a2\u8ba8C\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u77e5\u8bc6，\u5e2e\u52a9\u4f60\u638c\u63e1TCP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684\u5b9e\u73b0\u3002\u901a\u8fc7\u5b66\u4e60，\u4f60\u5c06\u80fd\u591f：
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