{"id":108189,"date":"2026-09-21T07:25:52","date_gmt":"2026-09-20T23:25:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108189.html"},"modified":"2026-09-21T07:25:52","modified_gmt":"2026-09-20T23:25:52","slug":"%e3%80%90linux%e3%80%91%e4%b8%89%e5%8d%81%e5%85%ab-c-%e6%89%8b%e5%86%99-http-%e6%9c%8d%e5%8a%a1%e5%99%a8%ef%bc%9a%e8%a3%b8-socket-fork-%e5%a4%9a%e8%bf%9b%e7%a8%8b%ef%bc%8c%e4%bb%8e-http-%e6%8a%a5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108189.html","title":{"rendered":"\u3010Linux\u3011\u4e09\u5341\u516b.C++ \u624b\u5199 HTTP \u670d\u52a1\u5668\uff1a\u88f8 socket + fork \u591a\u8fdb\u7a0b\uff0c\u4ece HTTP \u62a5\u6587\u89e3\u6790\u5230\u6d4f\u89c8\u5668\u6253\u5f00\u7f51\u9875"},"content":{"rendered":"

C++ \u7f51\u7edc\u7f16\u7a0b\u5b9e\u6218 ：C++\u3001HTTP \u670d\u52a1\u5668\u3001socket \u7f16\u7a0b\u3001fork \u591a\u8fdb\u7a0b\u3001HTTP \u534f\u8bae\u89e3\u6790\u3001Linux \u7f51\u7edc\u7f16\u7a0b<\/p>\n

\n

TCP \u4e09\u6b21\u63e1\u624b\u80cc\u5f97\u6eda\u74dc\u70c2\u719f，socket \u90a3\u51e0\u4e2a\u51fd\u6570\u4e5f\u4f1a\u8c03，\u53ef\u4e00\u65e6\u8981\u81ea\u5df1\u6512\u4e00\u4e2a HTTP \u670d\u52a1\u5668，\u5f88\u591a\u4eba\u5c31\u5361\u4f4f\u4e86：\u62a5\u6587\u683c\u5f0f\u8bb0\u4e0d\u7262\u3001\u4e0d\u77e5\u9053\u8be5\u5207\u51e0\u5c42\u3001\u5199\u5b8c\u4e5f\u4e0d\u77e5\u9053\u5bf9\u4e0d\u5bf9，\u53ea\u80fd\u9760"\u770b\u8d77\u6765\u80fd\u8dd1"\u81ea\u6211\u5b89\u6170\u3002<\/p>\n

\u66f4\u9ebb\u70e6\u7684\u662f，\u7b49\u4f60\u771f\u53bb\u8bfb\u522b\u4eba\u7684 HTTP \u670d\u52a1\u5668\u4ee3\u7801，\u5f80\u5f80\u662f\u4e00\u5768\u2014\u2014\u89e3\u6790\u3001\u7f51\u7edc\u3001\u4e1a\u52a1\u5168\u7cca\u5728\u4e00\u4e2a\u6587\u4ef6\u91cc，\u770b\u4e0d\u51fa\u54ea\u5c42\u8be5\u5e72\u4ec0\u4e48\u3002<\/p>\n

\u8fd9\u7bc7\u6587\u7ae0\u628a\u8fd9\u4ef6\u4e8b\u4ece\u5934\u62c6\u5230\u5e95\u3002\u5168\u90e8\u4ee3\u7801\u5c31\u662f\u5341\u6765\u4e2a\u6587\u4ef6，\u6bcf\u4e00\u6bb5\u6211\u90fd\u8bb2\u900f\u3002\u8bfb\u5b8c\u4f60\u4f1a\u62ff\u5230\u4e09\u6837\u4e1c\u897f：<\/p>\n

  • \n

    \u4e00\u4e2a\u771f\u6b63\u80fd\u8dd1\u7684\u670d\u52a1\u5668\u2014\u2014\u6d4f\u89c8\u5668\u6253\u5f00\u6709\u9875\u9762，curl \u62ff\u5230\u6b63\u786e\u72b6\u6001\u7801，\u9996\u9875\u3001404\u3001301\u3001\u52a8\u6001\u8def\u7531\u5168\u90fd\u5b9e\u6d4b\u8fc7；<\/p>\n<\/li>\n

  • \n

    \u4e00\u5f20\u6e05\u6670\u7684\u5206\u5c42\u5730\u56fe\u2014\u2014TcpServer \u7ba1\u8fdb\u7a0b\u3001Http \u7ba1\u534f\u8bae\u3001\u4e1a\u52a1\u51fd\u6570\u7ba1\u903b\u8f91，\u54ea\u4e2a\u6587\u4ef6\u5e72\u4ec0\u4e48\u6d3b，\u4e00\u773c\u770b\u6e05；<\/p>\n<\/li>\n

  • \n

    \u4e00\u4efd 12 \u6761\u8e29\u5751\u6e05\u5355\u2014\u2014\u5168\u662f\u771f\u8dd1\u51fa\u6765\u7684，\u5305\u62ec\u90a3\u4e9b\u7f16\u8bd1\u96f6\u8b66\u544a\u3001\u8fdb\u7a0b\u4e0d\u5d29\u3001\u9875\u9762"\u770b\u8d77\u6765"\u8fd8\u80fd\u5f00，\u56e0\u800c\u80fd\u6d3b\u597d\u51e0\u5e74\u7684\u9690\u853d bug\u3002<\/p>\n<\/li>\n

    \u6587\u672b\u6709\u5b8c\u6574\u7684\u8fd0\u884c\u73b0\u8c61\u548c\u6211\u8e29\u8fc7\u7684\u5751，\u8f93\u51fa\u90fd\u662f\u771f\u8dd1\u51fa\u6765\u7684，\u4e0d\u662f\u7f16\u7684\u3002<\/p>\n

    \n

    \u4e00\u3001\u5148\u770b\u5168\u666f：\u8fd9\u4e2a\u9879\u76ee\u7684\u5206\u5c42<\/h3>\n

    \u5199\u7f51\u7edc\u7a0b\u5e8f\u6700\u6015\u4e00\u4e0a\u6765\u5c31\u624e\u8fdb\u4ee3\u7801\u91cc\u51fa\u4e0d\u6765\u3002\u6211\u5148\u628a\u6574\u4e2a\u9879\u76ee\u7684\u5c42\u6b21\u753b\u51fa\u6765，\u4f60\u5728\u54ea\u4e2a\u6587\u4ef6\u3001\u5e72\u7684\u662f\u4ec0\u4e48\u6d3b，\u5fc3\u91cc\u5f97\u6709\u5f20\u5730\u56fe：<\/p>\n

    +———————————————————-+
    \n| Main.cc \u5165\u53e3：\u6ce8\u518c\u8def\u7531 \/login -> Login \u51fd\u6570 |
    \n+———————————————————-+
    \n| Http.hpp \u5e94\u7528\u5c42：\u89e3\u6790HTTP\u8bf7\u6c42 \/ \u6784\u9020HTTP\u54cd\u5e94 \/ |
    \n| \u8def\u7531\u5206\u53d1 \/ \u8bfb\u9759\u6001\u6587\u4ef6 |
    \n+———————————————————-+
    \n| TcpServer.hpp \u7f51\u7edc\u670d\u52a1\u5c42：accept + fork \u5e76\u53d1 + \u56de\u8c03 |
    \n+———————————————————-+
    \n| Socket.hpp socket\u5c01\u88c5：\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f |
    \n| InetAddr.hpp \u5730\u5740\u5c01\u88c5：\u4e3b\u673a\u5e8f<->\u7f51\u7edc\u5e8f |
    \n+———————————————————-+
    \n| Util.hpp \u5de5\u5177：\u8bfb\u6587\u4ef6 \/ \u6309\u5206\u9694\u7b26\u5207\u884c \/ \u6587\u4ef6\u5927\u5c0f |
    \n| Log.hpp \u65e5\u5fd7：\u7b56\u7565\u6a21\u5f0f（\u63a7\u5236\u53f0\/\u6587\u4ef6） |
    \n| Mutex.hpp \u9501：RAII\u5c01\u88c5 |
    \n| Common.hpp \u516c\u5171\u679a\u4e3e \/ \u5b8f |
    \n+———————————————————-+<\/p>\n

    \u8fd9\u4e2a\u5206\u5c42\u7684\u6838\u5fc3\u601d\u60f3\u5c31\u4e00\u53e5\u8bdd：\u7f51\u7edc\u548c\u4e1a\u52a1\u89e3\u8026\u3002<\/p>\n

    TcpServer \u6839\u672c\u4e0d\u77e5\u9053 HTTP \u662f\u4ec0\u4e48，\u5b83\u53ea\u7ba1"\u6765\u4e00\u4e2a\u8fde\u63a5，\u6211\u5c31 fork \u4e00\u4e2a\u8fdb\u7a0b\u53bb\u8dd1\u4f60\u7ed9\u6211\u7684\u56de\u8c03"\u3002Http \u4e5f\u4e0d\u5173\u5fc3 socket \u600e\u4e48\u521b\u5efa\u7684，\u5b83\u53ea\u7ba1\u89e3\u6790\u62a5\u6587\u3001\u586b\u54cd\u5e94\u3002\u54ea\u5929\u4f60\u60f3\u628a HTTP \u6362\u6210\u522b\u7684\u534f\u8bae，TcpServer.hpp \u4e00\u884c\u4e0d\u7528\u52a8\u2014\u2014\u8fd9\u5c31\u662f\u6211\u6298\u817e\u8fd9\u4e48\u591a\u5c42\u6362\u6765\u7684\u81ea\u7531\u3002<\/p>\n

    \n

    \u4e8c\u3001HTTP \u62a5\u6587\u957f\u4ec0\u4e48\u6837<\/h3>\n

    \u4ee3\u7801\u600e\u4e48\u5199，\u53d6\u51b3\u4e8e\u62a5\u6587\u957f\u4ec0\u4e48\u6837\u3002HTTP \u8bf7\u6c42\u548c\u54cd\u5e94\u7684\u7ed3\u6784\u662f\u7406\u89e3\u6574\u4e2a Http.hpp \u7684\u94a5\u5319\u3002<\/p>\n

    HTTP REQUEST \u62a5\u6587\u683c\u5f0f\u56fe（\u8bf7\u6c42\u884c \/ \u8bf7\u6c42\u62a5\u5934 \/ \u7a7a\u884c \/ \u8bf7\u6c42\u6b63\u6587）<\/p>\n

    \"\"<\/p>\n

    HTTP RESPONSE \u62a5\u6587\u683c\u5f0f\u56fe（\u72b6\u6001\u884c \/ \u54cd\u5e94\u62a5\u5934 \/ \u7a7a\u884c \/ \u54cd\u5e94\u6b63\u6587）<\/p>\n

    \"\"<\/p>\n

    \u4e24\u5f20\u56fe\u5bf9\u7167\u7740\u770b，\u7ed3\u6784\u5b8c\u5168\u5bf9\u79f0，\u5c31\u56db\u6bb5：<\/p>\n

    \u8bf7\u6c42：
    \n GET \/login?username=zhangsan&password=123456 HTTP\/1.1\\\\r\\\\n <- \u8bf7\u6c42\u884c
    \n Host: 127.0.0.1:8080\\\\r\\\\n <- \u62a5\u5934，\u4e00\u5806 Key: Value
    \n User-Agent: curl\/7.81.0\\\\r\\\\n
    \n Accept: *\/*\\\\r\\\\n
    \n \\\\r\\\\n <- \u7a7a\u884c，\u62a5\u5934\u7ed3\u675f\u7684\u6807\u5fd7
    \n （body，GET \u4e00\u822c\u6ca1\u6709） <- \u6b63\u6587<\/p>\n

    \u54cd\u5e94：
    \n HTTP\/1.0 200 OK\\\\r\\\\n <- \u72b6\u6001\u884c
    \n Content-Type: text\/html\\\\r\\\\n <- \u62a5\u5934
    \n Content-Length: 2872\\\\r\\\\n
    \n \\\\r\\\\n <- \u7a7a\u884c
    \n <html>…<\/html> <- \u6b63\u6587<\/p>\n

    \u4e09\u4e2a\u5fc5\u987b\u523b\u8fdb\u8111\u5b50\u91cc\u7684\u70b9：<\/p>\n

  • \n

    \u6bcf\u4e00\u884c\u4ee5 \\\\r\\\\n \u7ed3\u5c3e，\u4e0d\u662f \\\\n\u3002\u8fd9\u662f\u534f\u8bae\u89c4\u5b9a\u7684，\u5c11\u4e2a \\\\r \u6d4f\u89c8\u5668\u90fd\u4e0d\u8ba4\u3002<\/p>\n<\/li>\n

  • \n

    \u7a7a\u884c（\u4e5f\u5c31\u662f\u5355\u72ec\u4e00\u4e2a \\\\r\\\\n）\u662f\u62a5\u5934\u7ed3\u675f\u7684\u6807\u5fd7\u3002\u89e3\u6790\u7684\u65f6\u5019\u5c31\u662f\u9760\u5b83\u77e5\u9053"\u540e\u9762\u662f\u6b63\u6587\u4e86"\u3002<\/p>\n<\/li>\n

  • \n

    \u6b63\u6587\u591a\u957f\u7531 Content-Length \u8bf4\u4e86\u7b97，\u4e0d\u662f\u9760 \\\\0 \u4e5f\u4e0d\u662f\u9760\u8fde\u63a5\u65ad\u5f00\u2014\u2014\u56e0\u4e3a TCP \u662f\u5b57\u8282\u6d41，\u6ca1\u6709"\u62a5\u6587\u8fb9\u754c"\u8fd9\u4e2a\u6982\u5ff5，\u8fb9\u754c\u5168\u662f\u5e94\u7528\u5c42\u81ea\u5df1\u7ea6\u5b9a\u7684（\u8fd9\u5c31\u662f\u7c98\u5305\u95ee\u9898\u7684\u672c\u8d28，\u540e\u9762\u7ec6\u8bf4）\u3002<\/p>\n<\/li>\n

    \u6211\u4eec\u670d\u52a1\u5668\u7684\u6d3b，\u8bf4\u767d\u4e86\u5c31\u662f：\u6536\u4e00\u5927\u5768\u5b57\u8282\u6d41，\u6309\u4e0a\u9762\u7684\u683c\u5f0f\u5207\u5f00，\u7136\u540e\u6309\u683c\u5f0f\u62fc\u4e00\u5768\u56de\u53bb\u3002<\/p>\n

    \n

    \u4e09\u3001\u5730\u57fa\u56db\u4ef6\u5957：Common \/ Mutex \/ Log \/ InetAddr<\/h3>\n

    \u8fd9\u56db\u4e2a\u6587\u4ef6\u4e0d\u542b\u4efb\u4f55 HTTP \u903b\u8f91，\u7eaf\u7cb9\u662f\u5730\u57fa\u3002\u6211\u6309\u4f9d\u8d56\u987a\u5e8f\u8bb2\u3002<\/p>\n

    3.1 Common.hpp\u2014\u2014\u5168\u9879\u76ee\u7684"\u516c\u5171\u8bcd\u5178"<\/h4>\n

    \"\"<\/p>\n

    #pragma once<\/p>\n

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

    enum ExitCode
    \n{
    \n OK = 0,
    \n USAGE_ERR,
    \n SOCKET_ERR,
    \n BIND_ERR,
    \n LISTEN_ERR,
    \n CONNECT_ERR,
    \n FORK_ERR,
    \n OPEN_ERR
    \n};<\/p>\n

    \u8fd9\u4e2a enum ExitCode \u770b\u7740\u4e0d\u8d77\u773c，\u5176\u5b9e\u662f\u4e2a\u597d\u4e60\u60ef：\u8fdb\u7a0b\u9000\u51fa\u65f6 exit(SOCKET_ERR)，shell \u91cc echo $? \u5c31\u80fd\u62ff\u5230 2，\u5199\u811a\u672c\u76d1\u63a7\u670d\u52a1\u5668\u6302\u6ca1\u6302\u7684\u65f6\u5019\u7279\u522b\u597d\u7528\u3002\u6bd4\u6ee1\u4ee3\u7801\u7684 exit(1) \u5f3a\u591a\u4e86\u2014\u20141 \u662f\u4ec0\u4e48\u9519？\u8c01\u77e5\u9053\u3002<\/p>\n

    \n

    class NoCopy
    \n{
    \npublic:
    \n NoCopy(){}
    \n ~NoCopy(){}
    \n NoCopy(const NoCopy &) = delete;
    \n const NoCopy &operator = (const NoCopy&) = delete;
    \n};<\/p>\n

    NoCopy \u7528 C++11 \u7684 = delete \u628a\u62f7\u8d1d\u6784\u9020\u548c\u8d4b\u503c\u76f4\u63a5\u5220\u6389\u3002\u60f3\u7981\u6b62\u62f7\u8d1d\u7684\u7c7b\u7ee7\u627f\u5b83\u5c31\u884c\u3002\u8fd9\u7248\u4ee3\u7801\u91cc TcpServer \u8fd8\u6ca1\u7ee7\u627f\u5b83，\u5c5e\u4e8e\u7559\u4e86\u4e2a\u5de5\u5177\u5728\u624b\u8fb9\u3002<\/p>\n

    \n

    #define CONV(addr) ((struct sockaddr*)&addr)<\/p>\n

    \u8fd9\u4e2a\u5b8f\u662f\u7f51\u7edc\u7f16\u7a0b\u7684\u8001\u670b\u53cb\u4e86\u3002accept\u3001bind \u7684\u53c2\u6570\u7c7b\u578b\u662f struct sockaddr*（\u901a\u7528\u5730\u5740\u7ed3\u6784），\u4f46\u6211\u4eec\u5b9e\u9645\u7528\u7684\u662f struct sockaddr_in（IPv4 \u4e13\u7528）\u3002\u5185\u6838\u63a5\u53e3\u5f53\u5e74\u6ca1\u505a\u6cdb\u578b，\u5c31\u9760\u5f3a\u8f6c\u51d1\u5408\u2014\u2014sockaddr_in \u524d 16 \u5b57\u8282\u548c sockaddr \u5e03\u5c40\u517c\u5bb9，\u6240\u4ee5\u5f3a\u8f6c\u662f\u5b89\u5168\u7684，\u8fd9\u662f\u6240\u6709 Unix \u7f51\u7edc\u4ee3\u7801\u7684\u60ef\u7528\u5199\u6cd5\u3002\u5c01\u88c5\u6210\u5b8f，\u81f3\u5c11\u4ee3\u7801\u91cc\u4e0d\u7528\u5230\u5904\u5199\u6076\u5fc3\u7684\u5f3a\u8f6c\u3002<\/p>\n

    \n

    3.2 Mutex.hpp\u2014\u2014\u4e24\u628a\u9501\u7684 RAII \u5c01\u88c5<\/h4>\n

    \"\"<\/p>\n

    class Mutex
    \n{
    \npublic:
    \n Mutex()
    \n {
    \n pthread_mutex_init(&_mutex, nullptr);
    \n }
    \n void Lock()
    \n {
    \n int n = pthread_mutex_lock(&_mutex);
    \n (void)n;
    \n }
    \n void Unlock()
    \n {
    \n int n = pthread_mutex_unlock(&_mutex);
    \n (void)n;
    \n }
    \n ~Mutex()
    \n {
    \n pthread_mutex_destroy(&_mutex);
    \n }
    \nprivate:
    \n pthread_mutex_t _mutex;
    \n};<\/p>\n

    \u6784\u9020\u65f6 init，\u6790\u6784\u65f6 destroy\u2014\u2014\u8fd9\u5c31\u662f RAII \u7684\u5473\u9053，\u9501\u7684\u751f\u547d\u5468\u671f\u548c\u5bf9\u8c61\u7ed1\u5b9a，\u4e0d\u4f1a\u51fa\u73b0"\u521d\u59cb\u5316\u4e86\u5fd8\u4e86\u9500\u6bc1"\u7684\u6cc4\u6f0f\u3002<\/p>\n

    \u771f\u6b63\u6709\u8bb2\u7a76\u7684\u662f\u4e0b\u9762\u8fd9\u4e2a：<\/p>\n

    class LockGuard
    \n{
    \npublic:
    \n LockGuard(Mutex &mutex):_mutex(mutex)
    \n {
    \n _mutex.Lock();
    \n }
    \n ~LockGuard()
    \n {
    \n _mutex.Unlock();
    \n }
    \nprivate:
    \n Mutex &_mutex;
    \n};<\/p>\n

    \u7528\u6cd5\u662f\u5728\u6808\u4e0a\u521b\u5efa\u4e00\u4e2a LockGuard \u5c40\u90e8\u5bf9\u8c61，\u6784\u9020\u65f6\u52a0\u9501\u3002<\/p>\n

    \u5173\u952e\u5728\u6790\u6784：\u51fd\u6570\u4e0d\u7ba1\u4ece\u54ea\u6761\u8def\u5f84 return\u3001\u54ea\u6015\u629b\u5f02\u5e38，\u6808\u5bf9\u8c61\u7684\u6790\u6784\u51fd\u6570\u90fd\u4f1a\u6267\u884c，\u9501\u4e00\u5b9a\u88ab\u91ca\u653e\u3002\u5982\u679c\u4f60\u624b\u5199 lock() … \u4e2d\u95f4\u4e09\u884c\u4ee3\u7801 … unlock()，\u4e2d\u95f4\u4efb\u4f55\u4e00\u4e2a early return \u90fd\u80fd\u8ba9\u9501\u6c38\u8fdc\u56de\u4e0d\u53bb\u2014\u2014\u8fd9\u79cd\u6b7b\u9501\u6211\u5728\u771f\u5b9e\u9879\u76ee\u91cc\u89c1\u8fc7\u4e0d\u6b62\u4e00\u6b21\u3002\u6240\u4ee5\u89c4\u77e9\u5c31\u662f：\u80fd RAII \u7684\u7edd\u4e0d\u624b\u5199 lock\/unlock\u3002<\/p>\n

    \u8fd9\u7248\u4ee3\u7801\u662f fork \u591a\u8fdb\u7a0b\u6a21\u578b，\u8fdb\u7a0b\u95f4\u4e0d\u5171\u4eab\u9501，Mutex \u5b9e\u9645\u7528\u5728\u4e86 Log.hpp \u7684\u591a\u573a\u666f\u9884\u7559\u4e0a（\u65e5\u5fd7\u6a21\u5757\u662f\u7167\u7740\u591a\u7ebf\u7a0b\u573a\u666f\u5199\u7684）\u3002<\/p>\n

    \n

    3.3 InetAddr.hpp\u2014\u2014\u5730\u5740\u7684"\u7ffb\u8bd1\u5b98"<\/h4>\n

    \"\"<\/p>\n

    \u7f51\u7edc\u5730\u5740\u6709\u4e24\u526f\u9762\u5b54：\u5185\u5b58\u91cc\u662f struct sockaddr_in（4 \u5b57\u8282 IP + 2 \u5b57\u8282\u7aef\u53e3，\u5168\u662f\u5927\u7aef\u7f51\u7edc\u5e8f），\u4eba\u773c\u770b\u7684\u662f "127.0.0.1" + 8080\u3002InetAddr \u5c31\u662f\u8fd9\u4e24\u526f\u9762\u5b54\u4e4b\u95f4\u7684\u7ffb\u8bd1\u5b98，\u628a sockaddr_in\u3001ip\u3001port \u4e09\u4e2a\u88c5\u5728\u4e00\u4e2a\u5bf9\u8c61\u91cc，\u8c01\u7528\u627e\u8c01\u8981\u3002<\/p>\n

    \u6784\u9020\u51fd\u6570\u6709\u4e09\u80de\u80ce：<\/p>\n

    InetAddr(struct sockaddr_in &addr) \/\/ \u4ece\u5bf9\u7aef\u6765\u7684：peer\u5730\u5740
    \nInetAddr(const std::string &ip, uint16_t port) \/\/ \u5ba2\u6237\u7aef\u8fde\u670d\u52a1\u5668\u7528：\u6307\u5b9aIP
    \nInetAddr(uint16_t port) \/\/ \u670d\u52a1\u5668\u7ed1\u5b9a\u7528：INADDR_ANY<\/p>\n

    \u670d\u52a1\u5668\u7ed1\u5b9a\u65f6\u7528\u7684\u662f\u7b2c\u4e09\u4e2a：<\/p>\n

    InetAddr(uint16_t port) : _ip(), _port(port) \/\/ \u987a\u5e8f\u548c\u6210\u5458\u58f0\u660e\u987a\u5e8f\u4fdd\u6301\u4e00\u81f4
    \n{
    \n memset(&_addr, 0, sizeof(_addr));
    \n _addr.sin_family = AF_INET;
    \n _addr.sin_addr.s_addr = INADDR_ANY;
    \n _addr.sin_port = htons(_port);
    \n}<\/p>\n

    INADDR_ANY \u5c31\u662f 0.0.0.0，\u610f\u601d\u662f"\u672c\u673a\u6240\u6709\u7f51\u5361\u4e0a\u7684\u8fd9\u4e2a\u7aef\u53e3\u6211\u90fd\u542c"\u3002\u4f60\u7684\u673a\u5668\u53ef\u80fd\u6709 127.0.0.1（\u56de\u73af）\u3001192.168.x.x（\u5c40\u57df\u7f51）\u3001\u516c\u7f51 IP \u597d\u51e0\u4e2a\u5730\u5740，\u7ed1 ANY \u4e00\u52b3\u6c38\u9038\u3002htons \u628a\u4e3b\u673a\u5e8f\u8f6c\u7f51\u7edc\u5e8f\u2014\u2014\u8fd9\u4e2a\u5fc5\u987b\u8f6c，\u522b\u95ee，\u95ee\u5c31\u662f\u5386\u53f2\u7ea6\u5b9a：\u7f51\u7edc\u5b57\u8282\u5e8f\u7edf\u4e00\u5927\u7aef，x86 \u662f\u5c0f\u7aef\u3002<\/p>\n

    \u4e00\u4e2a -Wreorder \u7684\u5751：\u6211\u4e0a\u9762\u5199\u4e86\u53e5\u6ce8\u91ca"\u987a\u5e8f\u548c\u6210\u5458\u58f0\u660e\u987a\u5e8f\u4fdd\u6301\u4e00\u81f4"\u3002C++ \u7684\u89c4\u77e9\u662f：\u6210\u5458\u521d\u59cb\u5316\u5217\u8868\u4e0d\u7ba1\u4f60\u5199\u6210\u4ec0\u4e48\u987a\u5e8f，\u5b9e\u9645\u521d\u59cb\u5316\u987a\u5e8f\u6c38\u8fdc\u6309\u6210\u5458\u58f0\u660e\u987a\u5e8f\u6267\u884c\u3002\u5982\u679c\u521d\u59cb\u5316\u5217\u8868\u987a\u5e8f\u548c\u58f0\u660e\u987a\u5e8f\u4e0d\u4e00\u81f4，\u7f16\u8bd1\u5668\u4e0d\u62a5\u9519，\u4f46 -Wall \u4f1a\u7529\u4f60\u4e00\u8138 -Wreorder\u3002\u6211 _port \u5199\u5728 _ip \u524d\u9762，\u58f0\u660e\u5374\u5728\u540e\u9762，\u6b63\u597d\u8e29\u4e2d\u3002\u8fd9\u79cd bug \u4e0d\u70b8\u903b\u8f91，\u4f46\u8bf4\u660e\u4f60\u5bf9\u6267\u884c\u987a\u5e8f\u7684\u8ba4\u77e5\u548c\u7f16\u8bd1\u5668\u4e0d\u4e00\u81f4，\u5f97\u6539\u3002<\/p>\n

    \u4ece\u5bf9\u7aef\u5730\u5740\u8f6c\u56de\u4eba\u8bdd\u770b\u7684\u662f SetAddr：<\/p>\n

    void SetAddr(struct sockaddr_in &addr)
    \n{
    \n _addr = addr;
    \n _port = ntohs(_addr.sin_port); \/\/ \u4ece\u7f51\u7edc\u4e2d\u62ff\u5230\u7684！\u7f51\u7edc\u5e8f\u5217
    \n char ipbuffer[64];
    \n inet_ntop(AF_INET, &_addr.sin_addr, ipbuffer, sizeof(ipbuffer));
    \n _ip = ipbuffer;
    \n}<\/p>\n

    \u8fd9\u91cc\u6709\u4e2a\u6211\u6539\u8fc7\u7684 bug：inet_ntop \u7684\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u662f\u7f13\u51b2\u533a\u5927\u5c0f，\u539f\u6765\u5199\u7684\u662f sizeof(_addr)\u2014\u2014\u90a3\u662f\u5730\u5740\u7ed3\u6784\u7684\u5927\u5c0f 16，\u4e0d\u662f ipbuffer \u7684\u5927\u5c0f 64\u3002IPv4 \u70b9\u5206\u5341\u8fdb\u5236\u6700\u957f\u5c31\u662f "255.255.255.255" \u6070\u597d 16 \u5b57\u8282（15 \u5b57\u7b26 + \\\\0），\u6240\u4ee5\u4fa5\u5e78\u6ca1\u51fa\u4e8b\u3002\u4f46"\u6070\u597d\u591f"\u548c"\u5199\u5bf9\u4e86"\u662f\u4e24\u56de\u4e8b，\u54ea\u5929\u6709\u4eba\u628a buffer \u6539\u5c0f\u4e00\u70b9\u5c31\u662f\u6808\u6ea2\u51fa\u3002<\/p>\n

    \u8001\u4ee3\u7801\u91cc\u5e38\u89c1\u7684 inet_ntoa \u6211\u4e0d\u5efa\u8bae\u7528\u2014\u2014\u5b83\u8fd4\u56de\u9759\u6001\u7f13\u51b2\u533a\u6307\u9488，\u591a\u7ebf\u7a0b\u4e0b\u4e24\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8c03\u4f1a\u4e92\u76f8\u8986\u76d6，inet_ntop \u628a buffer \u4ea4\u7ed9\u8c03\u7528\u8005，\u5929\u7136\u7ebf\u7a0b\u5b89\u5168\u3002<\/p>\n

    \n

    3.4 Log.hpp\u2014\u2014\u7b56\u7565\u6a21\u5f0f\u65e5\u5fd7<\/h4>\n

    \"\"<\/p>\n

    \u65e5\u5fd7\u6a21\u5757\u503c\u5f97\u5355\u72ec\u4e00\u8282，\u56e0\u4e3a\u5b83\u662f\u8fd9\u4e2a\u9879\u76ee\u91cc"\u8bbe\u8ba1\u6a21\u5f0f\u6d53\u5ea6"\u6700\u9ad8\u7684\u5730\u65b9，\u800c\u4e14\u90a3\u4e2a C++ \u6280\u5de7\u76f8\u5f53\u6f02\u4eae\u3002<\/p>\n

    \u7b2c\u4e00\u5c42：\u5237\u65b0\u7b56\u7565（\u7b56\u7565\u6a21\u5f0f）<\/p>\n

    class LogStrategy
    \n{
    \npublic:
    \n ~LogStrategy() = default;
    \n virtual void SyncLog(const std::string &message) = 0;
    \n};<\/p>\n

    \u7eaf\u865a\u57fa\u7c7b，\u7ea6\u5b9a"\u65e5\u5fd7\u600e\u4e48\u5237\u51fa\u53bb"\u3002\u4e24\u4e2a\u5b9e\u73b0：<\/p>\n

      \n
    • \n

      ConsoleLogStrategy：\u5f80 std::cout \u5237，\u5185\u90e8\u5e26\u9501；<\/p>\n<\/li>\n

    • \n

      FileLogStrategy：\u5f80\u6587\u4ef6\u5237，\u6784\u9020\u65f6\u7528 C++17 \u7684 std::filesystem::create_directories \u81ea\u52a8\u5efa\u76ee\u5f55（\u76ee\u5f55\u5b58\u5728\u5c31\u8df3\u8fc7），\u5199\u7684\u65f6\u5019\u4ee5 std::ios::app \u8ffd\u52a0\u6a21\u5f0f\u6253\u5f00\u2014\u2014\u670d\u52a1\u5668\u91cd\u542f\u65e5\u5fd7\u4e0d\u4e22\u3002<\/p>\n<\/li>\n<\/ul>\n

      \u5207\u6362\u7b56\u7565\u5c31\u4e00\u884c：<\/p>\n

      void EnableFileLogStrategy() { _fflush_strategy = std::make_unique<FileLogStrategy>(); }
      \nvoid EnableConsoleLogStrategy(){ _fflush_strategy = std::make_unique<ConsoleLogStrategy>(); }<\/p>\n

      unique_ptr \u6362\u4e2a\u6307\u5411\u5c31\u5b8c\u6210\u4e86\u7b56\u7565\u5207\u6362，\u591a\u6001+\u667a\u80fd\u6307\u9488，\u4e0d\u9700\u8981 new\/delete\u3002\u60f3\u6539\u6210"\u65e5\u5fd7\u8fdb MySQL"？\u52a0\u4e2a\u5b50\u7c7b\u5c31\u884c，\u5176\u4ed6\u4ee3\u7801\u5168\u4e0d\u52a8\u3002<\/p>\n

      \n

      \u7b2c\u4e8c\u5c42：\u62fc\u4e00\u6761\u65e5\u5fd7\u7684\u6280\u5de7\u2014\u2014\u4e34\u65f6\u5bf9\u8c61 + \u6790\u6784\u5237\u65b0<\/p>\n

      \u8fd9\u662f\u6574\u4e2a Log.hpp \u6700\u7cbe\u5999\u7684\u5730\u65b9，\u6211\u7b2c\u4e00\u6b21\u770b\u7684\u65f6\u5019\u62cd\u6848\u53eb\u7edd：<\/p>\n

      class LogMessage
      \n{
      \npublic:
      \n LogMessage(LogLevel &level, std::string &src_name, int line_number, Logger &logger)
      \n : _curr_time(GetTimeStamp()), _level(level), _pid(getpid()),
      \n _src_name(src_name), _line_number(line_number), _logger(logger)
      \n {
      \n \/\/ \u65e5\u5fd7\u7684\u5de6\u8fb9\u90e8\u5206，\u5408\u5e76\u8d77\u6765
      \n std::stringstream ss;
      \n ss << "[" << _curr_time << "] "
      \n << "[" << Level2Str(_level) << "] "
      \n << "[" << _pid << "] "
      \n << "[" << _src_name << "] "
      \n << "[" << _line_number << "] "
      \n << "- ";
      \n _loginfo = ss.str();
      \n }
      \n template <typename T>
      \n LogMessage &operator<<(const T &info)
      \n {
      \n std::stringstream ss;
      \n ss << info;
      \n _loginfo += ss.str();
      \n return *this;
      \n }
      \n ~LogMessage()
      \n {
      \n if (_logger._fflush_strategy)
      \n {
      \n _logger._fflush_strategy->SyncLog(_loginfo);
      \n }
      \n }<\/p>\n

      \u770b\u6784\u9020\u51fd\u6570\u5de6\u8fb9\u62fc\u4ec0\u4e48：\u65f6\u95f4\u3001\u7b49\u7ea7\u3001PID\u3001\u6587\u4ef6\u540d\u3001\u884c\u53f7\u3002__FILE__ \u548c __LINE__ \u662f\u7f16\u8bd1\u5668\u5185\u7f6e\u5b8f，\u6240\u4ee5\u6bcf\u6761\u65e5\u5fd7\u5929\u7136\u5e26"\u6848\u53d1\u73b0\u573a"：<\/p>\n

      [2026-09-19 15:50:37] [DEBUG] [2778380] [Http.hpp] [64] – _method: GET<\/p>\n

      \u51fa\u4e86\u95ee\u9898，\u65e5\u5fd7\u4e00\u7ffb\u5c31\u77e5\u9053\u54ea\u4e2a\u6587\u4ef6\u54ea\u4e00\u884c\u3001\u662f\u54ea\u4e2a\u8fdb\u7a0b\u6253\u7684\u2014\u2014fork \u6a21\u578b\u4e0b PID \u5c24\u5176\u91cd\u8981，\u4e00\u773c\u770b\u51fa\u662f\u7236\u8fdb\u7a0b\u8fd8\u662f\u54ea\u4e2a\u5b50\u8fdb\u7a0b\u5728\u8bf4\u8bdd\u3002<\/p>\n

      \u518d\u770b\u4f7f\u7528\u4fa7：<\/p>\n

      LOG(LogLevel::DEBUG) << "_method: " << _method;<\/p>\n

      \u5b8f\u5c55\u5f00\u662f logger(LogLevel::DEBUG, __FILE__, __LINE__)，\u8c03\u7528\u7684\u662f：<\/p>\n

      LogMessage operator()(LogLevel level, std::string name, int line)
      \n{
      \n return LogMessage(level, name, line, *this); \/\/ \u6545\u610f\u8fd4\u56de\u4e34\u65f6\u5bf9\u8c61
      \n}<\/p>\n

      \u6ce8\u610f：\u8fd4\u56de\u7684\u662f\u4e34\u65f6\u5bf9\u8c61，\u4e0d\u662f\u6307\u9488\u4e0d\u662f\u5f15\u7528\u3002 \u540e\u9762\u4e00\u8fde\u4e32 << \u90fd\u5728\u8fd9\u4e2a\u4e34\u65f6\u5bf9\u8c61\u4e0a\u8ffd\u52a0\u5185\u5bb9\u3002<\/p>\n

      \u5173\u952e\u6765\u4e86\u2014\u2014\u8fd9\u6574\u6761\u8bed\u53e5\u7ed3\u675f\u65f6，\u4e34\u65f6\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u5230\u5934，\u6790\u6784\u51fd\u6570\u81ea\u52a8\u89e6\u53d1，SyncLog \u628a\u6512\u597d\u7684\u5b8c\u6574\u65e5\u5fd7\u4e00\u6b21\u6027\u5237\u51fa\u53bb\u3002<\/p>\n

      \u8fd9\u5c31\u662f"\u4e34\u65f6\u5bf9\u8c61\u6790\u6784\u5373\u5237\u65b0"\u6280\u5de7：\u5237\u65b0\u52a8\u4f5c\u4e0d\u7528\u7528\u6237\u64cd\u5fc3，C++ \u7684\u5bf9\u8c61\u751f\u547d\u5468\u671f\u89c4\u5219\u66ff\u4f60\u515c\u5e95\u3002\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e00\u4e2a\u5751\u2014\u2014\u4f60\u7edd\u5bf9\u4e0d\u80fd\u628a LOG(…) \u5199\u6210\u591a\u884c\u8bed\u53e5：<\/p>\n

      LOG(LogLevel::DEBUG) << "a";
      \n<< "b"; \/\/ \u7f16\u8bd1\u9519\u8bef！\u4e34\u65f6\u5bf9\u8c61\u4e0a\u4e00\u884c\u5c31\u6790\u6784\u4e86<\/p>\n

      \u8fd8\u6709\u4e2a\u5b9e\u73b0\u7ec6\u8282：\u65e5\u5fd7\u91cc\u6362\u884c\u6211\u7edf\u4e00\u7528 \\\\r\\\\n（gsep），\u4e0d\u7528 std::endl\u2014\u2014endl \u9664\u4e86\u6362\u884c\u8fd8\u4f1a flush \u6d41，\u5728\u6a21\u677f operator<< \u91cc\u8fd8\u6709\u7c7b\u578b\u63a8\u5bfc\u7684\u5751，\u6211\u4e4b\u524d\u88ab\u5b83\u5751\u51fa\u8fc7\u7f16\u8bd1\u9519\u8bef，\u4ece\u6b64\u6211\u7684\u65e5\u5fd7\u6a21\u5757\u4e00\u5f8b\u81ea\u5df1\u7ba1\u6362\u884c\u3002<\/p>\n

      inline \u7684\u6559\u8bad：Level2Str\u3001GetTimeStamp \u8fd9\u4e24\u4e2a\u81ea\u7531\u51fd\u6570\u548c Logger logger \u8fd9\u4e2a\u5168\u5c40\u5bf9\u8c61，\u90fd\u5b9a\u4e49\u5728\u5934\u6587\u4ef6\u91cc\u3002\u5934\u6587\u4ef6\u4f1a\u88ab\u591a\u4e2a .cpp \u5305\u542b，\u666e\u901a\u51fd\u6570\u548c\u5168\u5c40\u53d8\u91cf\u5728\u6bcf\u4e2a\u7ffb\u8bd1\u5355\u5143\u91cc\u90fd\u4f1a\u751f\u6210\u4e00\u4efd\u5b9a\u4e49，\u94fe\u63a5\u65f6\u76f4\u63a5\u62a5"multiple definition"\u3002\u6211\u4e4b\u524d\u7684\u9879\u76ee\u5c31\u5728\u8fd9\u4e0a\u9762\u5d29\u8fc7\u3002C++17 \u7684\u89e3\u6cd5\u5f88\u5e72\u51c0：\u5168\u52a0 inline（\u53d8\u91cf\u4e5f\u6709 inline \u4e86），\u591a\u4e2a\u7ffb\u8bd1\u5355\u5143\u5171\u4eab\u4e00\u4efd\u3002<\/p>\n

      \n

      \u56db\u3001Socket.hpp\u2014\u2014\u628a socket \u7cfb\u7edf\u8c03\u7528\u5305\u6210\u5bf9\u8c61<\/h3>\n

      Linux \u7684 socket API \u662f C \u98ce\u683c\u7684：socket() \u8fd4\u56de\u4e2a fd，bind\/listen\/accept \u90fd\u62ff\u8fd9\u4e2a fd \u64cd\u4f5c\u3002\u76f4\u63a5\u5728\u4e1a\u52a1\u4ee3\u7801\u91cc\u88f8\u8c03\u8fd9\u4e9b\u51fd\u6570，\u4ee3\u7801\u4f1a\u6563\u5f97\u5230\u5904\u90fd\u662f\u3002\u6211\u7684\u505a\u6cd5\u662f\u5c01\u88c5\u6210\u7c7b：<\/p>\n

      \"\"<\/p>\n

      class Socket
      \n{
      \npublic:
      \n virtual ~Socket() {}
      \n virtual void SocketOrDie() = 0;
      \n virtual void BindOrDie(uint16_t port) = 0;
      \n virtual void ListenOrDie(int backlog) = 0;
      \n virtual std::shared_ptr<Socket> Accept(InetAddr *client) = 0;
      \n virtual void Close() = 0;
      \n virtual int Recv(std::string *out) = 0;
      \n virtual int Send(const std::string &message) = 0;
      \n virtual int Connect(const std::string &server_ip, uint16_t port) = 0;<\/p>\n

      public:
      \n void BuildTcpSocketMethod(uint16_t port, int backlog = gbacklog)
      \n {
      \n SocketOrDie();
      \n BindOrDie(port);
      \n ListenOrDie(backlog);
      \n }
      \n void BuildTcpClientSocketMethod()
      \n {
      \n SocketOrDie();
      \n }
      \n};<\/p>\n

      \u8fd9\u662f\u6a21\u677f\u65b9\u6cd5\u6a21\u5f0f：\u57fa\u7c7b\u628a"\u521b\u5efa TCP \u670d\u52a1\u5668 socket \u7684\u56fa\u5b9a\u5957\u8def"（\u521b\u5efa\u2192\u7ed1\u5b9a\u2192\u76d1\u542c）\u5728 BuildTcpSocketMethod \u91cc\u5b9a\u6b7b，\u5177\u4f53\u6bcf\u4e00\u6b65\u600e\u4e48\u5e72\u4ea4\u7ed9\u5b50\u7c7b\u3002\u73b0\u5728\u53ea\u6709 TcpSocket \u4e00\u4e2a\u5b50\u7c7b，\u4f46\u54ea\u5929\u8981\u52a0 UdpSocket，\u5957\u8def\u662f\u73b0\u6210\u7684\u3002<\/p>\n

      \u6bcf\u4e2a\u65b9\u6cd5\u540d\u5e26 OrDie \u662f\u6211\u7684\u547d\u540d\u5f3a\u8feb\u75c7：\u8fd9\u4e9b\u64cd\u4f5c\u5931\u8d25\u5c31\u6ca1\u6cd5\u73a9\u4e86（bind \u5931\u8d25\u670d\u52a1\u5668\u8d77\u6765\u5e72\u561b），\u76f4\u63a5\u6253 FATAL \u65e5\u5fd7\u7136\u540e exit\u3002\u9519\u8bef\u5206\u7ea7\u5f88\u91cd\u8981：\u80fd\u6551\u7684\u6551（accept \u5076\u5c14\u5931\u8d25 return nullptr \u7ee7\u7eed），\u6551\u4e0d\u4e86\u7684\u75db\u5feb\u6b7b（bind \u5931\u8d25\u6d3b\u7740\u4e5f\u662f\u6d6a\u8d39\u7535）\u3002<\/p>\n

      TcpSocket \u91cc\u6700\u503c\u5f97\u7ec6\u8bb2\u7684\u662f Recv：<\/p>\n

      int Recv(std::string *out) override
      \n{
      \n \/\/ \u6d41\u5f0f\u8bfb\u53d6，\u4e0d\u5173\u5fc3\u8bfb\u5230\u7684\u662f\u4ec0\u4e48
      \n char buffer[1024];
      \n ssize_t n = ::recv(_sockfd, buffer, sizeof(buffer) – 1, 0);
      \n if (n > 0)
      \n {
      \n buffer[n] = 0;
      \n *out += buffer; \/\/ \u6545\u610f
      \n }
      \n return n;
      \n}<\/p>\n

      \u56db\u4e2a\u7ec6\u8282，\u5168\u662f TCP \u7684\u672c\u8d28：<\/p>\n

    • \n

      buffer \u53ea\u5f00 1024：recv \u662f"\u6765\u591a\u5c11\u8200\u591a\u5c11"，\u4e00\u6b21\u8c03\u7528\u6700\u591a\u8200 1023 \u5b57\u8282\u3002\u5927\u62a5\u6587\u8981\u4e0a\u5c42\u5faa\u73af\u8c03\u3002<\/p>\n<\/li>\n

    • \n

      sizeof(buffer) – 1：\u7559 1 \u5b57\u8282\u653e \\\\0\u3002<\/p>\n<\/li>\n

    • \n

      buffer[n] = 0：recv \u4e0d\u5e2e\u4f60\u52a0 \\\\0，\u5b83\u53ea\u8fd4\u56de\u8bfb\u4e86\u591a\u5c11\u5b57\u8282\u3002\u4e0d\u8865 \\\\0 \u540e\u9762\u6309 C \u5b57\u7b26\u4e32\u5904\u7406\u5c31\u8bfb\u8d8a\u754c\u4e86\u3002<\/p>\n<\/li>\n

    • \n

      *out += buffer \u662f += \u4e0d\u662f =：\u8fd9\u662f"\u8ffd\u52a0"\u8bed\u4e49，\u4e0a\u5c42\u591a\u6b21\u8c03\u7528 Recv \u628a\u5b57\u8282\u6d41\u6512\u8d77\u6765\u3002\u6ce8\u610f += \u4e00\u4e2a char* \u4f1a\u5728\u7b2c\u4e00\u4e2a \\\\0 \u5904\u622a\u65ad\u2014\u2014HTTP \u62a5\u6587\u91cc\u4e0d\u4f1a\u51fa\u73b0 \\\\0 \u6240\u4ee5\u6ca1\u4e8b，\u4f46\u4f20\u4e8c\u8fdb\u5236\u534f\u8bae\u65f6\u8fd9\u5c31\u662f bug，\u5f97\u6362\u6210 out->append(buffer, n)\u3002<\/p>\n<\/li>\n

      Accept \u8fd4\u56de std::shared_ptr<Socket> \u800c\u4e0d\u662f\u88f8 fd：<\/p>\n

      std::shared_ptr<Socket> Accept(InetAddr *client) override
      \n{
      \n struct sockaddr_in peer;
      \n socklen_t len = sizeof(peer);
      \n int fd = ::accept(_sockfd, CONV(peer), &len);
      \n if (fd < 0)
      \n {
      \n LOG(LogLevel::WARNING) << "accept warning …";
      \n return nullptr;
      \n }
      \n client->SetAddr(peer);
      \n return std::make_shared<TcpSocket>(fd);
      \n}<\/p>\n

      \u8fd9\u662f\u4e2a\u5f88\u8212\u670d\u7684\u5c01\u88c5\u8bbe\u8ba1：accept \u51fa\u6765\u7684\u901a\u4fe1 fd \u76f4\u63a5\u5305\u6210\u4e00\u4e2a\u65b0\u7684 TcpSocket \u5bf9\u8c61\u4ea4\u51fa\u53bb，\u8c03\u7528\u65b9\u62ff\u5230\u7684\u5c31\u662f\u4e2a\u80fd\u6536\u80fd\u53d1\u7684\u5b8c\u6574\u5bf9\u8c61\u3002<\/p>\n

      \u4f46\u6709\u4e2a\u5fc5\u987b\u8bf4\u7834\u7684\u7ec6\u8282：\u8fd9\u7248 TcpSocket \u7684\u6790\u6784\u51fd\u6570\u662f\u7a7a\u7684，\u5e76\u4e0d\u4f1a\u81ea\u52a8 close fd！<\/p>\n

      \u771f\u6b63\u5173 fd \u9760\u4e24\u4ef6\u4e8b：\u4e0a\u5c42\u663e\u5f0f\u8c03 Close()（TcpServer \u91cc\u5b59\u5b50\u8fdb\u7a0b\u5e72\u5b8c\u6d3b\u90a3\u6b21），\u4ee5\u53ca\u8fdb\u7a0b\u9000\u51fa\u65f6\u5185\u6838\u515c\u5e95\u56de\u6536\u3002<\/p>\n

      \u90a3\u4e3a\u4ec0\u4e48\u4e0d\u987a\u624b\u5728\u6790\u6784\u91cc\u52a0\u4e2a close(_sockfd) \u505a\u6210\u5b8c\u5168 RAII？\u53ef\u4ee5，\u4f46\u5fc5\u987b\u914d\u5957\u628a _sockfd \u7f6e\u56de -1\u2014\u2014\u4e0d\u7136\u663e\u5f0f Close() \u5173\u4e00\u6b21\u3001\u6790\u6784\u518d\u5173\u4e00\u6b21\u5c31\u662f double close：fd \u53f7\u4f1a\u88ab\u7cfb\u7edf\u590d\u7528\u5206\u914d\u7ed9\u522b\u4eba，\u7b2c\u4e8c\u4e2a close \u4f1a\u8bef\u4f24\u522b\u4eba\u521a\u6253\u5f00\u7684\u6587\u4ef6，\u8fd9\u79cd bug \u80fd\u628a\u4eba\u903c\u75af\u3002\u8981\u4e48\u7eaf\u663e\u5f0f\u5173（\u73b0\u72b6），\u8981\u4e48\u5f7b\u5e95 RAII（\u6790\u6784 close + \u7f6e -1），\u6700\u6015\u534a\u540a\u5b50\u3002TcpSocket(int fd) \u8fd9\u4e2a\u6784\u9020\u51fd\u6570\u5c31\u662f\u4e3a Accept \u51c6\u5907\u7684\u3002<\/p>\n

      \n

      \u4e94\u3001TcpServer.hpp\u2014\u2014fork \u5e76\u53d1\u6a21\u578b（\u672c\u9879\u76ee\u7684\u8fdb\u7a0b\u620f\u4efd\u5168\u5728\u8fd9）<\/h3>\n

      \"\"<\/p>\n

      \u8fd9\u4e2a\u6587\u4ef6\u662f\u7eaf\u7f51\u7edc\u5c42，\u5bf9 HTTP \u4e00\u65e0\u6240\u77e5\u3002\u5148\u770b\u5b83\u600e\u4e48\u5b9a\u4e49"\u4e1a\u52a1"：<\/p>\n

      using ioservice_t = std::function<void(std::shared_ptr<Socket> &sock, InetAddr &client)>;<\/p>\n

      \u4e00\u4e2a std::function，\u53c2\u6570\u662f\u901a\u4fe1 socket \u548c\u5bf9\u7aef\u5730\u5740\u3002TcpServer \u6536\u5230\u8fde\u63a5\u540e\u8c03\u5b83，\u8c03\u7684\u8c01？Http \u4f20\u8fdb\u6765\u7684\u5904\u7406\u51fd\u6570\u3002\u8fd9\u5c31\u662f\u56de\u8c03\u89e3\u8026：TcpServer \u53ea\u7ba1\u63a5\u5ba2，\u63a5\u5b8c\u5ba2\u628a"\u8bdd\u7b52"\u9012\u51fa\u53bb\u3002<\/p>\n

      \u4e3b\u5faa\u73af\u56db\u6b65\u8d70：<\/p>\n

      void Start(ioservice_t callback)
      \n{
      \n _isrunning = true;
      \n while (_isrunning)
      \n {
      \n InetAddr client;
      \n auto sock = _listensockptr->Accept(&client); \/\/ 1. \u62ff\u5230\u901a\u4fe1sockfd\u548c\u5bf9\u7aef\u5730\u5740
      \n if (sock == nullptr)
      \n {
      \n continue; \/\/ accept\u5076\u53d1\u5931\u8d25，\u4e0d\u65ad\u4e3b，\u7ee7\u7eed\u63a5\u4e0b\u4e00\u4e2a
      \n }
      \n LOG(LogLevel::DEBUG) << "accept success …" << client.StringAddr();
      \n …fork \u5206\u53d1…
      \n }
      \n}<\/p>\n

      accept \u62ff\u5230\u7684\u662f\u65b0\u7684 fd（\u901a\u4fe1 socket），\u548c listen socket \u662f\u4e24\u7801\u4e8b：listensock \u8d1f\u8d23"\u62c9\u5ba2"，sock \u8d1f\u8d23"\u8ddf\u8fd9\u4f4d\u5ba2\u4eba\u5355\u72ec\u804a"\u3002\u5206\u4e0d\u6e05\u8fd9\u4fe9\u7684，\u53ef\u4ee5\u60f3\u8c61\u6210\u9910\u5385\u95e8\u53e3\u9886\u4f4d\u7684\u548c\u8fdb\u5305\u95f4\u670d\u52a1\u7684\u4e0d\u662f\u540c\u4e00\u4e2a\u4eba\u3002<\/p>\n

      \u7136\u540e\u662f\u91cd\u5934\u620f，fork \u4e09\u5206\u652f\u3002\u6211\u628a\u6bcf\u4e2a\u5206\u652f"\u8c01\u6d3b\u7740\u3001\u8c01\u5173\u4ec0\u4e48"\u6807\u6e05\u695a：<\/p>\n

      pid_t id = fork();
      \nif (id < 0)
      \n{
      \n LOG(LogLevel::FATAL) << "fork error …";
      \n exit(FORK_ERR);
      \n}
      \nelse if (id == 0)
      \n{
      \n \/\/ —- \u5b50\u8fdb\u7a0b —-
      \n _listensockptr->Close(); \/\/ (1) \u5b50\u8fdb\u7a0b\u4e0d\u62c9\u5ba2，\u5173\u6389listensock
      \n if (fork() > 0) \/\/ (2) \u4e8c\u6b21fork
      \n exit(OK); \/\/ \u5b50\u8fdb\u7a0b\u81ea\u5df1\u9000\u51fa，\u628a\u6d3b\u7559\u7ed9\u5b59\u5b50
      \n callback(sock, client); \/\/ (3) \u5b59\u5b50\u8fdb\u7a0b\u5e72\u6d3b
      \n sock->Close();
      \n exit(OK);
      \n}
      \nelse
      \n{
      \n \/\/ —- \u7236\u8fdb\u7a0b —-
      \n sock->Close(); \/\/ (4) \u7236\u8fdb\u7a0b\u4e0d\u804a\u5929，\u5173\u6389\u901a\u4fe1sock
      \n pid_t rid = ::waitpid(id, nullptr, 0); \/\/ (5) \u7b49\u513f\u5b50\u9000\u51fa
      \n (void)rid;
      \n}<\/p>\n

      \u5173\u952e\u70b9，\u4e00\u4e2a\u90fd\u4e0d\u80fd\u542b\u7cca：<\/p>\n

      (1) \u5b50\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u5173 listensock？ fork \u51fa\u6765\u7684\u5b50\u8fdb\u7a0b\u7ee7\u627f\u7236\u8fdb\u7a0b\u6240\u6709 fd，\u5305\u62ec listensock\u3002\u5b50\u8fdb\u7a0b\u53ea\u9700\u8981\u4f3a\u5019\u8fd9\u4e00\u4e2a\u8fde\u63a5，listensock \u5728\u5b83\u624b\u91cc\u7eaf\u5c5e\u591a\u4f59\u2014\u2014\u4e0d\u5173\u7684\u8bdd，\u4e07\u4e00\u5b50\u8fdb\u7a0b\u4e5f\u53bb accept，\u4e00\u4e2a\u8fde\u63a5\u53ef\u80fd\u88ab\u5b83\u62a2\u8d70，\u800c\u4e14\u6bcf\u4e2a\u5b50\u8fdb\u7a0b\u90fd\u6525\u7740 listensock \u7684\u5f15\u7528，fd \u8ba1\u6570\u4e71\u7cdf\u7cdf\u3002<\/p>\n

      (2) \u4e3a\u4ec0\u4e48\u8981 fork \u4e24\u6b21？ \u8fd9\u662f\u8fd9\u4e2a\u6a21\u578b\u6700\u7cbe\u5999\u7684\u8bbe\u8ba1\u3002<\/p>\n

      \u5982\u679c\u53ea fork \u4e00\u6b21：\u7236\u8fdb\u7a0b\u8981\u4e48 waitpid \u7b49\u5b50\u8fdb\u7a0b\u5904\u7406\u5b8c\u4e1a\u52a1（\u4e1a\u52a1\u6162\u5c31\u963b\u585e\u4e86 accept，\u670d\u52a1\u5668"\u5361\u4f4f"），\u8981\u4e48\u8bbe SIG_IGN\/\u4fe1\u53f7\u5904\u7406\u56de\u6536（\u4ee3\u7801\u53c8\u591a\u4e00\u4efd）\u3002<\/p>\n

      \u4e8c\u6b21 fork \u7684\u601d\u8def\u662f：\u513f\u5b50 fork \u5b8c\u7acb\u523b\u9000\u51fa，\u771f\u6b63\u5e72\u6d3b\u7684\u5b59\u5b50\u53d8\u6210\u5b64\u513f，\u88ab 1 \u53f7\u8fdb\u7a0b（init\/systemd）\u9886\u517b，\u5b59\u5b50\u9000\u51fa\u540e\u7531 1 \u53f7\u8fdb\u7a0b\u81ea\u52a8\u6536\u5272\u3002\u7236\u8fdb\u7a0b waitpid \u7b49\u7684\u662f\u513f\u5b50\u2014\u2014\u513f\u5b50 fork \u5b8c\u5c31\u9000，waitpid \u77ac\u95f4\u8fd4\u56de，\u4e3b\u5faa\u73af\u7acb\u523b\u56de\u53bb accept \u4e0b\u4e00\u4e2a\u5ba2\u4eba\u3002\u5904\u7406\u8017\u65f6\u7684\u4e1a\u52a1\u88ab\u5b8c\u5168\u7529\u7ed9\u4e86\u5b64\u513f\u8fdb\u7a0b\u3002<\/p>\n

      \u4e00\u53e5\u8bdd：waitpid \u53ea\u7b49"\u4ea4\u63a5\u73ed"，\u4e0d\u7b49"\u5e72\u5b8c\u6d3b"\u3002<\/p>\n

      (3) \u5b59\u5b50\u8fdb\u7a0b\u5e72\u5b8c\u6d3b\u7684\u6536\u5c3e：callback \u8dd1\u5b8c sock->Close() \u518d exit(OK)\u3002\u5176\u5b9e\u5b64\u513f\u8fdb\u7a0b\u9000\u51fa\u65f6\u5185\u6838\u540c\u6837\u4f1a\u56de\u6536 fd，\u8fd9\u4e24\u884c\u66f4\u50cf"\u597d\u4e60\u60ef\u7684\u4eea\u5f0f\u611f"\u2014\u2014\u4e07\u4e00\u4ee5\u540e\u4e1a\u52a1\u51fd\u6570\u91cc\u8fd8\u6709\u522b\u7684\u4ee3\u7801\u8def\u5f84，\u663e\u5f0f\u5173\u603b\u662f\u4e0d\u5403\u4e8f\u7684\u3002<\/p>\n

      (4) \u7236\u8fdb\u7a0b\u4e3a\u4ec0\u4e48\u5173 sock？ \u540c\u7406\u53cd\u4e00\u4e0b：\u7236\u8fdb\u7a0b\u53ea\u7ba1\u62c9\u5ba2\u3002\u901a\u4fe1 sock \u4e0d\u5173，\u6bcf\u6765\u4e00\u4e2a\u8fde\u63a5\u7236\u8fdb\u7a0b\u5c31\u591a\u6525\u4e00\u4e2a fd，\u8fde\u63a5\u4e00\u591a\u76f4\u63a5\u628a\u8fdb\u7a0b\u7684 fd \u4e0a\u9650\u8017\u5149（ulimit -n，\u9ed8\u8ba4 1024）\u3002fork \u6a21\u578b\u7684\u94c1\u5f8b：\u4e0d\u7528\u7684 fd \u7acb\u523b\u5173，\u7236\u5b50\u5404\u5173\u5404\u7684\u3002<\/p>\n

      (5) waitpid \u963b\u585e\u5728\u4e3b\u5faa\u73af\u91cc，\u4e0d\u614c\u5417？ \u614c\u7684\u65f6\u5019\u624d\u9700\u8981\u4fe1\u53f7\u65b9\u6848，\u8fd9\u91cc\u4e0d\u614c\u2014\u2014\u56e0\u4e3a\u513f\u5b50\u6d3b\u5f97\u6781\u77ed（fork \u5b8c\u5c31\u9000），waitpid \u5b9e\u9645\u4e0a\u4e0d\u963b\u585e\u3002<\/p>\n

      \u8fd8\u6709\u4e00\u4e2a\u5bb9\u6613\u6f0f\u7684\u70b9：fork \u5931\u8d25\u5206\u652f\u91cc\u90a3\u4e2a sock \u6ca1 close \u5c31 exit \u4e86\u2014\u2014\u8981\u4e0d\u8981\u7d27？\u4e0d\u8981\u7d27，\u8fdb\u7a0b\u9000\u51fa\u65f6\u5185\u6838\u4f1a\u56de\u6536\u8be5\u8fdb\u7a0b\u6240\u6709\u7684 fd，\u8fd9\u662f\u5185\u6838\u7684\u515c\u5e95，\u4e0d\u662f\u4f60\u4e0d\u7528\u7ba1，\u662f\u5185\u6838\u66ff\u4f60\u7ba1\u4e86\u3002<\/p>\n

      \n

      \u516d\u3001Util.hpp\u2014\u2014\u4e09\u4e2a\u7eaf\u5de5\u5177\u51fd\u6570<\/h3>\n

      \"\"<\/p>\n

      6.1 ReadFileContent：\u8bfb\u6587\u4ef6\u7684\u4e24\u4e2a\u5751<\/h4>\n

      static bool ReadFileContent(const std::string &filename, std::string *out)
      \n{
      \n int filesize = FileSize(filename);
      \n if(filesize > 0)
      \n {
      \n std::ifstream in(filename, std::ios::binary);
      \n if(!in.is_open())
      \n return false;
      \n out->resize(filesize);
      \n in.read(out->data(), filesize);
      \n in.close();
      \n }
      \n else
      \n {
      \n return false;
      \n }
      \n return true;
      \n}<\/p>\n

      \u6d41\u7a0b：\u5148\u95ee\u6587\u4ef6\u591a\u5927 \u2192 \u4e00\u6b21\u6027 resize \u597d\u5185\u5b58 \u2192 \u4e00\u53e3\u6c14\u8bfb\u8fdb\u6765\u3002<\/p>\n

      \u6ce8\u91ca\u91cc\u6211\u7559\u4e86 version1 \u7684\u5bf9\u7167（\u9010\u884c getline），\u5b83\u6709\u4e2a\u81f4\u547d\u95ee\u9898：\u6309\u884c\u8bfb\u4f1a\u4e22\u6362\u884c\u7b26，\u800c\u4e14\u662f\u6587\u672c\u6a21\u5f0f\u3002HTTP \u8981\u56de\u7684\u53ef\u80fd\u662f\u56fe\u7247\u3001\u89c6\u9891，\u4efb\u4f55"\u6309\u884c"\u7684\u5047\u8bbe\u90fd\u662f\u9519\u7684，\u4e8c\u8fdb\u5236\u5fc5\u987b\u6574\u5757\u8bfb\u3002<\/p>\n

      \u57511：std::ios::binary \u5fc5\u987b\u52a0\u3002\u8fd9\u7248\u4ee3\u7801\u539f\u6765\u6ca1\u52a0\u2014\u2014\u6ce8\u91ca\u5199\u7740"\u4ee5\u4e8c\u8fdb\u5236\u65b9\u5f0f\u8fdb\u884c\u8bfb\u53d6"，\u6253\u5f00\u5374\u9ed8\u8ba4\u6587\u672c\u6a21\u5f0f\u3002Linux \u4e0a\u4fa5\u5e78\u6ca1\u4e8b（Linux \u4e0d\u533a\u5206\u6587\u672c\/\u4e8c\u8fdb\u5236\u6a21\u5f0f），Windows \u4e0a\u8bfb PNG \u4f1a\u628a \\\\r\\\\n \u505a\u8f6c\u6362，\u56fe\u7247\u76f4\u63a5\u635f\u574f\u3002\u4ee3\u7801\u610f\u56fe\u548c\u5b9e\u73b0\u5fc5\u987b\u4e00\u81f4，\u4fa5\u5e78\u2260\u6b63\u786e\u3002<\/p>\n

      \u57512：\u522b\u5bf9 c_str() \u5f3a\u8f6c\u5199\u5165\u3002\u539f\u4ee3\u7801\u662f in.read((char*)(out->c_str()), filesize)\u2014\u2014c_str() \u8fd4\u56de const char*，\u5f3a\u8f6c\u6389 const \u5f80\u91cc\u5199\u662f\u672a\u5b9a\u4e49\u884c\u4e3a\u3002C++17 \u91cc string::data() \u8fd4\u56de\u7684\u5c31\u662f\u975e const \u6307\u9488，\u5149\u660e\u6b63\u5927\u5730\u7528\u3002<\/p>\n

      \n

      6.2 ReadOneLine：\u6574\u4e2a HTTP \u89e3\u6790\u7684\u5207\u884c\u6838\u5fc3<\/h4>\n

      static bool ReadOneLine(std::string &bigstr, std::string *out, const std::string &sep\/*\\\\r\\\\n*\/)
      \n{
      \n auto pos = bigstr.find(sep);
      \n if(pos == std::string::npos)
      \n return false;<\/p>\n

      *out = bigstr.substr(0, pos);
      \n bigstr.erase(0, pos + sep.size());
      \n return true;
      \n}<\/p>\n

      \u903b\u8f91\u4e09\u884c：\u627e\u5206\u9694\u7b26 \u2192 \u5207\u51fa\u524d\u534a\u6bb5 \u2192 \u628a\u5207\u8d70\u7684（\u8fde\u540c\u5206\u9694\u7b26）\u4ece\u6e90\u4e32\u91cc\u5220\u6389\u3002<\/p>\n

      \u5999\u5728 bigstr \u662f\u5f15\u7528\u4f20\u5165\u3001\u539f\u5730\u7f29\u51cf：\u6bcf\u8c03\u4e00\u6b21，"\u5403\u6389"\u4e00\u884c，\u5269\u4e0b\u7684\u5185\u5bb9\u8fd8\u5728 bigstr \u91cc\u3002\u4e0a\u5c42\u5faa\u73af\u8c03\u5b83\u5c31\u80fd\u628a\u62a5\u6587\u9010\u884c\u5265\u5f00\u3002\u8fd4\u56de false \u610f\u5473\u7740"\u627e\u4e0d\u5230 \\\\r\\\\n \u4e86"\u2014\u2014\u5bf9\u8bf7\u6c42\u884c\u89e3\u6790\u6765\u8bf4\u5c31\u662f\u62a5\u6587\u6b8b\u7f3a，\u4e0a\u5c42\u76f4\u63a5\u653e\u5f03\u3002<\/p>\n

      \n

      6.3 FileSize：seekg\/tellg \u7ec4\u5408\u62f3<\/h4>\n

      static int FileSize(const std::string &filename)
      \n{
      \n std::ifstream in(filename, std::ios::binary);
      \n if(!in.is_open())
      \n return -1;
      \n in.seekg(0, in.end); \/\/ \u6587\u4ef6\u6307\u9488\u7529\u5230\u7ed3\u5c3e
      \n int filesize = in.tellg(); \/\/ \u95ee\u5f53\u524d\u4f4d\u7f6e=\u7b2c\u51e0\u5b57\u8282，\u5c31\u662f\u6587\u4ef6\u5927\u5c0f
      \n in.seekg(0, in.beg); \/\/ \u62e8\u56de\u5f00\u5934
      \n in.close();
      \n return filesize;
      \n}<\/p>\n

      \u539f\u7406\u5c31\u50cf\u95ee\u4f60"\u8fd9\u672c\u4e66\u591a\u539a"\u2014\u2014\u628a\u4e66\u7b7e\u7ffb\u5230\u6700\u540e\u4e00\u9875，\u770b\u9875\u7801\u3002seekg \u79fb\u52a8\u8bfb\u6307\u9488，tellg \u62a5\u544a\u5f53\u524d\u4f4d\u7f6e，\u4e00\u53bb\u4e00\u56de\u62ff\u5230\u5b57\u8282\u6570\u3002\u6253\u4e0d\u5f00\u6587\u4ef6\u8fd4\u56de -1，\u8c03\u7528\u65b9\u636e\u6b64\u8d70 404 \u903b\u8f91\u3002<\/p>\n

      \n

      \u4e03\u3001Http.hpp\u2014\u2014\u6b63\u620f：\u62a5\u6587\u7684\u89e3\u6790\u4e0e\u7ec4\u88c5<\/h3>\n

      \"\"<\/p>\n

      \u8fd9\u4e2a\u6587\u4ef6\u662f\u5e94\u7528\u5c42\u6838\u5fc3，\u6211\u62c6\u6210\u56db\u5757\u8bb2：\u8bf7\u6c42\u89e3\u6790\u3001\u54cd\u5e94\u7ec4\u88c5\u3001\u8def\u7531\u5206\u53d1\u3001\u670d\u52a1\u5668\u7ec4\u88c5\u3002<\/p>\n

      7.1 HttpRequest：\u628a\u8bf7\u6c42\u884c\u56bc\u788e<\/h4>\n

      class HttpRequest
      \n{
      \npublic:
      \n HttpRequest() : _is_interact(false) {}
      \n …
      \nprivate:
      \n std::string _method;
      \n std::string _uri;
      \n std::string _version;<\/p>\n

      std::unordered_map<std::string, std::string> _headers;
      \n std::string _blankline;
      \n std::string _text;<\/p>\n

      std::string _args; \/\/ ?\u540e\u9762\u7684\u53c2\u6570
      \n bool _is_interact; \/\/ \u662f\u5426\u662f\u5e26\u53c2\u6570\u7684\u52a8\u6001\u4ea4\u4e92\u8bf7\u6c42
      \n};<\/p>\n

      _is_interact \u662f\u7406\u89e3\u8fd9\u4e2a\u7c7b\u8bbe\u8ba1\u7684\u94a5\u5319：\u8bf7\u6c42\u5206\u4e24\u7c7b\u2014\u2014\u9759\u6001\u8bf7\u6c42（\u8981\u4e2a\u7f51\u9875\/\u56fe\u7247，\u56de\u6587\u4ef6\u5c31\u884c）\u548c\u52a8\u6001\u8bf7\u6c42（\/login?username=xxx \u8fd9\u79cd\u8981\u8dd1\u4ee3\u7801\u7684）\u3002\u533a\u522b\u5c31\u662f URI \u91cc\u6709\u6ca1\u6709 ?\u3002<\/p>\n

      \u53cd\u5e8f\u5217\u5316\u7684\u4e3b\u5e72：<\/p>\n

      bool Deserialize(std::string &reqstr)
      \n{
      \n \/\/ 1. \u63d0\u53d6\u8bf7\u6c42\u884c：\u4ecereqstr\u91cc\u6309\\\\r\\\\n\u5207\u4e0b\u7b2c\u4e00\u884c
      \n std::string reqline;
      \n bool res = Util::ReadOneLine(reqstr, &reqline, glinespace);
      \n if (!res) \/\/ \u8fde\u8bf7\u6c42\u884c\u90fd\u5207\u4e0d\u51fa\u6765，\u8bf4\u660e\u62a5\u6587\u662f\u7a7a\u7684\/\u6b8b\u7f3a\u7684
      \n return false;
      \n LOG(LogLevel::DEBUG) << reqline;<\/p>\n

      \/\/ 2. \u5bf9\u8bf7\u6c42\u884c\u8fdb\u884c\u53cd\u5e8f\u5217\u5316
      \n ParseReqLine(reqline);<\/p>\n

      ParseReqLine \u7528 stringstream \u4e00\u884c\u641e\u5b9a\u4e09\u4e2a\u5b57\u6bb5：<\/p>\n

      void ParseReqLine(std::string &reqline)
      \n{
      \n \/\/ GET \/ HTTP\/1.1
      \n std::stringstream ss(reqline);
      \n ss >> _method >> _uri >> _version;
      \n}<\/p>\n

      >> \u6309\u7a7a\u767d\u5207，\u6b63\u597d\u5bf9\u5e94"\u65b9\u6cd5 \u7a7a\u683c URI \u7a7a\u683c \u7248\u672c"\u7684\u683c\u5f0f\u2014\u2014\u7528\u683c\u5f0f\u672c\u8eab\u7684\u89c4\u5f8b\u7701\u6389\u624b\u5199\u5207\u5206，\u8fd9\u662f C++ \u5904\u7406\u5b9a\u5f0f\u6587\u672c\u7684\u60ef\u7528\u62db\u3002<\/p>\n

      \u63a5\u7740\u662f URI \u7684\u89c4\u6574\u548c\u53c2\u6570\u5265\u79bb：<\/p>\n

      if (_uri == "\/")
      \n _uri = webroot + _uri + homepage; \/\/ .\/wwwroot\/index.html
      \nelse
      \n _uri = webroot + _uri; \/\/ .\/wwwroot\/a\/b\/c.html
      \n…
      \nconst std::string temp = "?";
      \nauto pos = _uri.find(temp);
      \nif (pos == std::string::npos)
      \n{
      \n return true; \/\/ \u6ca1\u6709?，\u7eaf\u9759\u6001\u8bf7\u6c42
      \n}
      \n_args = _uri.substr(pos + temp.size()); \/\/ username=zhangsan&password=123456
      \n_uri = _uri.substr(0, pos); \/\/ .\/wwwroot\/login
      \n_is_interact = true;<\/p>\n

      \u4e24\u4e2a\u8bbe\u8ba1\u70b9：<\/p>\n

    • \n

      \u6d4f\u89c8\u5668\u8bf7\u6c42 \/ \u65f6\u8865\u4e0a\u9ed8\u8ba4\u9996\u9875\u3002\u7528\u6237\u8bbf\u95ee http:\/\/ip:8080\/，URI \u662f \/，\u4f60\u603b\u4e0d\u80fd\u56de\u4e00\u53e5"\u4f60\u8981\u5565\u6587\u4ef6\u554a"，\u7ea6\u5b9a\u4fd7\u6210\u56de index.html\u3002<\/p>\n<\/li>\n

    • \n

      URI \u52a0\u4e0a webroot \u524d\u7f00\u53d8\u6210\u78c1\u76d8\u8def\u5f84\u3002\u6d4f\u89c8\u5668\u8bf4 \/index.html，\u90a3\u662f\u76f8\u5bf9 Web \u6839\u76ee\u5f55\u7684\u903b\u8f91\u8def\u5f84，\u670d\u52a1\u5668\u7ffb\u8bd1\u6210 .\/wwwroot\/index.html \u624d\u77e5\u9053\u53bb\u54ea\u8bfb\u3002\u8fd9\u4e2a\u524d\u7f00\u540c\u65f6\u6321\u4f4f\u4e86\u76f4\u63a5\u8bfb\u7cfb\u7edf\u6587\u4ef6\u7684\u4f01\u56fe\u2014\u2014\u4f20 \/etc\/passwd \u62fc\u51fa\u6765\u662f .\/wwwroot\/etc\/passwd，\u8bfb\u4e0d\u5230\u3002<\/p>\n<\/li>\n

      \u4f46\u8fd8\u6ca1\u5b8c：\u4f20 \/..\/..\/etc\/passwd \u8fd9\u79cd\u7a7f\u8d8a\u8def\u5f84，.\/wwwroot\/..\/.. \u5c31\u8df3\u56de\u4e86\u7cfb\u7edf\u6839\u76ee\u5f55，\u7167\u6837\u628a\u7cfb\u7edf\u6587\u4ef6\u8bfb\u8d70（\u8def\u5f84\u89c4\u8303\u5316\u5fc5\u987b\u5728\u62fc\u63a5\u524d\u505a，\u8fd9\u7248\u4ee3\u7801\u8fd8\u6ca1\u505a，\u5c5e\u4e8e\u5df2\u77e5\u5f85\u529e）\u2014\u2014Web \u5b89\u5168\u6c38\u8fdc\u662f\u653b\u9632\u535a\u5f08，\u6321\u4e00\u5c42\u4e0d\u591f\u3002<\/p>\n

      \u5e26 ? \u7684\u8bf7\u6c42，? \u540e\u9762\u5c31\u662f\u53c2\u6570（query string），\u683c\u5f0f key=value&key=value，\u5265\u51fa\u6765\u5b58 _args，\u7559\u7ed9\u4e1a\u52a1\u51fd\u6570\u5904\u7406\u3002<\/p>\n

      \u5df2\u77e5\u7b80\u5316（\u6ce8\u91ca\u91cc\u6211\u4e5f\u5199\u4e86）：\u8fd9\u7248\u53ea\u89e3\u6790\u4e86\u8bf7\u6c42\u884c，header \u548c body \u6ca1\u8bfb\u3002\u5bf9 GET \u53d6\u9759\u6001\u9875\u591f\u7528；\u8981\u505a POST \u62ff body，\u5f97\u7ee7\u7eed\u6309 \\\\r\\\\n \u5265 header，\u627e\u5230 Content-Length \u518d\u6309\u957f\u5ea6\u8bfb body\u3002<\/p>\n

      \n

      7.2 HttpResponse：\u628a\u54cd\u5e94\u62fc\u51fa\u6765<\/h4>\n

      HttpResponse() : _version("HTTP\/1.0"), _code(200), _desc("OK"), _blankline(glinespace)
      \n{
      \n}<\/p>\n

      \u5148\u770b\u6784\u9020\u51fd\u6570\u2014\u2014\u8fd9\u884c\u662f\u6211\u6539\u51fa\u6765\u7684\u8840\u6cea：_code \u662f int，\u4e0d\u521d\u59cb\u5316\u5c31\u662f\u968f\u673a\u503c\u3002\u539f\u4ee3\u7801\u5168\u9760\u6bcf\u4e2a\u5206\u652f\u8bb0\u5f97\u5148\u8c03 SetCode，\u54ea\u5929\u65b0\u52a0\u4e2a\u5206\u652f\u5fd8\u4e86\u8c03，Serialize \u5c31\u628a\u6808\u4e0a\u7684\u5783\u573e\u6570\u5b57\u5f53\u72b6\u6001\u7801\u53d1\u7ed9\u6d4f\u89c8\u5668，\u90a3\u79cd bug \u80fd\u67e5\u4e00\u4e0b\u5348\u3002\u6784\u9020\u65f6\u7ed9\u9ed8\u8ba4\u503c，\u9632\u5fa1\u6027\u7f16\u7a0b\u4e0d\u4e22\u4eba\u3002<\/p>\n

      \u5e8f\u5217\u5316\u2014\u2014\u6ce8\u610f\u6ce8\u91ca\u91cc\u90a3\u53e5"\u6210\u719f\u7684 http，\u5e94\u7b54\u505a\u5e8f\u5217\u5316，\u4e0d\u8981\u4f9d\u8d56\u4efb\u4f55\u7b2c\u4e09\u65b9\u5e93"：<\/p>\n

      std::string Serialize()
      \n{
      \n std::string status_line = _version + gspace + std::to_string(_code) + gspace + _desc + glinespace;
      \n std::string resp_header;
      \n for (auto &header : _headers)
      \n {
      \n std::string line = header.first + glinesep + header.second + glinespace;
      \n resp_header += line;
      \n }
      \n return status_line + resp_header + _blankline + _text;
      \n}<\/p>\n

      \u7eaf\u5b57\u7b26\u4e32\u62fc\u63a5：\u72b6\u6001\u884c + \u62a5\u5934\u9010\u884c + \u7a7a\u884c + \u6b63\u6587\u3002<\/p>\n

      \u5bf9\u6bd4\u4e00\u4e0b：\u4e0a\u7bc7\u8ba1\u7b97\u5668\u7684\u8bf7\u6c42\u89e3\u6790\u7528 jsoncpp，\u662f\u56e0\u4e3a\u4e1a\u52a1\u5b57\u6bb5\u662f JSON\u3001\u5d4c\u5957\u7ed3\u6784\u624b\u5207\u5bb9\u6613\u9519；HTTP \u8bf7\u6c42\u884c\u662f"\u7a7a\u683c\u5206\u9694\u7684\u5b9a\u5f0f\u6587\u672c"，stringstream \u5c31\u591f；\u800c\u54cd\u5e94\u5e8f\u5217\u5316\u662f\u6211\u4eec\u751f\u4ea7\u62a5\u6587，\u683c\u5f0f\u5b8c\u5168\u7531\u81ea\u5df1\u63a7\u5236，\u5b57\u7b26\u4e32\u62fc\u63a5\u6700\u8f7b\u91cf\u2014\u2014\u8fd9\u4e5f\u662f\u4f60\u4ee5\u540e\u770b Nginx \u6e90\u7801\u4f1a\u770b\u5230\u7684\u624b\u6cd5\u3002<\/p>\n

      MakeResponse \u662f\u9759\u6001\u8d44\u6e90\u670d\u52a1\u7684\u7075\u9b42：<\/p>\n

      bool MakeResponse()
      \n{
      \n if (_targetfile == ".\/wwwroot\/favicon.ico")
      \n {
      \n LOG(LogLevel::DEBUG) << "\u7528\u6237\u8bf7\u6c42: " << _targetfile << "\u5ffd\u7565\u5b83";
      \n return false;
      \n }
      \n if (_targetfile == ".\/wwwroot\/redir_test")
      \n {
      \n SetCode(301);
      \n SetHeader("Location", "https:\/\/www.qq.com\/");
      \n return true;
      \n }
      \n int filesize = 0;
      \n bool res = Util::ReadFileContent(_targetfile, &_text);
      \n if (!res)
      \n {
      \n _text = "";
      \n SetCode(404);
      \n _targetfile = webroot + page_404;
      \n filesize = Util::FileSize(_targetfile);
      \n if (filesize <= 0) \/\/ \u8fde404.html\u90fd\u4e0d\u5b58\u5728\u65f6，\u4e0d\u80fd\u628aContent-Length\u5199\u6210-1
      \n filesize = 0;
      \n Util::ReadFileContent(_targetfile, &_text);
      \n SetHeader("Content-Type", Uri2Suffix(_targetfile));
      \n SetHeader("Content-Length", std::to_string(filesize));
      \n }
      \n else
      \n {
      \n SetCode(200);
      \n filesize = Util::FileSize(_targetfile);
      \n SetHeader("Content-Type", Uri2Suffix(_targetfile));
      \n SetHeader("Content-Length", std::to_string(filesize));
      \n SetHeader("Set-Cookie", "username=zhangsan;");
      \n }
      \n return true;
      \n}<\/p>\n

      \u56db\u4e2a\u73b0\u8c61\u7ea7\u7684\u903b\u8f91：<\/p>\n

    • \n

      favicon.ico \u76f4\u63a5\u5ffd\u7565：\u6d4f\u89c8\u5668\u6bcf\u6b21\u8bbf\u95ee\u90fd\u4f1a\u81ea\u52a8\u8bf7\u6c42\u4e00\u6b21 \u7ad9\u70b9\/favicon.ico（\u6807\u7b7e\u9875\u5c0f\u56fe\u6807）\u3002\u6211\u4eec\u6ca1\u8fd9\u6587\u4ef6，\u4e0d\u7406\u5b83\u5c31\u884c\u2014\u2014\u867d\u7136\u8fd4\u56de false \u610f\u5473\u7740\u8fd9\u4e2a\u8fde\u63a5\u5565\u4e5f\u4e0d\u56de，\u6d4f\u89c8\u5668\u5bf9 favicon \u6709\u81ea\u5df1\u7684\u5bb9\u9519，\u4e0d\u5f71\u54cd\u9875\u9762\u6e32\u67d3（\u5b9e\u6d4b\u73b0\u8c61\u89c1\u7b2c\u4e5d\u8282\u73b0\u8c612）\u3002<\/p>\n<\/li>\n

    • \n

      301 \u91cd\u5b9a\u5411：SetCode(301) + SetHeader("Location", "https:\/\/www.qq.com\/")，\u5c31\u8fd9\u4e24\u4e2a\u5934\u3002\u6d4f\u89c8\u5668\u6536\u5230 301，\u770b\u5230 Location，\u4e8c\u8bdd\u4e0d\u8bf4\u8df3\u8f6c\u5230\u65b0\u5730\u5740\u3002\u91cd\u5b9a\u5411\u7684\u672c\u8d28\u5c31\u8fd9\u4e48\u6734\u7d20\u3002<\/p>\n<\/li>\n

    • \n

      404 \u7684\u515c\u5e95\u903b\u8f91：\u6587\u4ef6\u8bfb\u4e0d\u5230 \u2192 \u6362 404.html \u7684\u5185\u5bb9\u5f53\u6b63\u6587 \u2192 \u72b6\u6001\u7801 404\u3002\u6ce8\u610f\u90a3\u4e2a filesize <= 0 \u7684\u4fdd\u62a4：404.html \u81ea\u5df1\u4e5f\u4e22\u4e86\u7684\u8bdd，FileSize \u8fd4\u56de -1，Content-Length: -1 \u53d1\u51fa\u53bb\u6d4f\u89c8\u5668\u76f4\u63a5\u61f5\u2014\u2014\u62a5\u5934\u6570\u503c\u6c38\u8fdc\u662f\u5bf9\u65b9\u89e3\u6790\u7684\u5bf9\u8c61，\u4e0d\u80fd\u6709\u975e\u6cd5\u503c\u3002<\/p>\n<\/li>\n

    • \n

      Set-Cookie：\u6210\u529f\u54cd\u5e94\u987a\u624b\u79cd\u4e86\u4e2a cookie\u3002\u6d4f\u89c8\u5668\u4f1a\u5b58\u4e0b\u6765，\u4ee5\u540e\u6bcf\u6b21\u8bf7\u6c42\u81ea\u52a8\u5e26\u4e0a Cookie: username=zhangsan\u2014\u2014HTTP \u672c\u8eab\u65e0\u72b6\u6001，\u4f1a\u8bdd\u4fdd\u6301\u5168\u9760\u8fd9\u5bf9\u914d\u5408\u3002<\/p>\n<\/li>\n

      Uri2Suffix \u7ba1 MIME \u7c7b\u578b：<\/p>\n

      if (suffix == ".html" || suffix == ".htm")
      \n return "text\/html";
      \nelse if (suffix == ".jpg")
      \n return "image\/jpeg";
      \nelse if (suffix == ".png")
      \n return "image\/png";<\/p>\n

      \u8fd9\u91cc\u6709\u4e2a\u6211\u6293\u51fa\u6765\u7684\u7ecf\u5178 bug：\u539f\u4ee3\u7801\u5199\u7684\u662f suffix == "png"\u2014\u2014\u5c11\u4e2a\u70b9，\u6c38\u8fdc\u5339\u914d\u4e0d\u4e0a，PNG \u7684 Content-Type \u4e00\u76f4\u662f\u7a7a\u3002substr(pos) \u4ece . \u5f00\u59cb\u5207，\u5207\u51fa\u6765\u7684\u662f .png，\u5b57\u7b26\u4e32\u5339\u914d\u5dee\u4e00\u4e2a\u5b57\u7b26\u90fd\u4e0d\u884c\u3002\u6d4f\u89c8\u5668\u62ff\u5230\u7a7a\u7684 Content-Type \u5c31\u53ea\u80fd\u9760\u731c（\u55c5\u63a2），\u731c\u9519\u4e86\u5c31\u5f53\u6587\u672c\u4e0b\u8f7d\u3002\u8fd9\u7c7b bug \u7f16\u8bd1\u5668\u4e0d\u62a5\u3001\u8fd0\u884c\u4e0d\u5d29，\u9875\u9762"\u770b\u8d77\u6765"\u8fd8\u80fd\u5f00，\u6700\u5bb9\u6613\u5b58\u6d3b\u4e0b\u6765\u3002<\/p>\n

      \u8fd8\u6709 SetHeader \u7684\u8bed\u4e49\u6ce8\u91ca：<\/p>\n

      \/\/ \u6ce8\u610f\u8bed\u4e49：\u540c\u540dkey\u5df2\u5b58\u5728\u65f6\u4e0d\u8986\u76d6，\u7b2c\u4e8c\u6b21\u8bbe\u7f6e\u4f1a\u88ab\u4e22\u5f03
      \n\/\/ \u60f3\u8986\u76d6\u7684\u8bdd，\u628a\u8fd9\u91cc\u6539\u6210 _headers[key] = value; \u5373\u53ef<\/p>\n

      "\u5148\u67e5\u518d\u63d2"\u5b9e\u73b0\u7684\u662f\u4e0d\u8986\u76d6\u8bed\u4e49\u3002\u8fd9\u662f\u8bbe\u8ba1\u9009\u62e9（\u9632\u6b62\u540e\u9762\u7684\u4ee3\u7801\u8bef\u6539\u5173\u952e\u5934），\u4f46\u4f60\u5fc5\u987b\u77e5\u9053\u5b83\u2014\u2014\u4e0d\u7136\u660e\u660e\u8c03\u4e86 SetHeader \u5374"\u4e0d\u751f\u6548"，\u67e5\u534a\u5929\u67e5\u4e0d\u51fa\u95ee\u9898\u3002<\/p>\n

      \n

      7.3 \u8def\u7531\u8868 + \u670d\u52a1\u5668\u7ec4\u88c5<\/h4>\n

      using http_func_t = std::function<void(HttpRequest &req, HttpResponse &resp)>;<\/p>\n

      class Http
      \n{
      \npublic:
      \n Http(uint16_t port) : tsvrp(std::make_unique<TcpServer>(port)) {}<\/p>\n

      void RegisterService(const std::string name, http_func_t h)
      \n {
      \n std::string key = webroot + name; \/\/ .\/wwwroot\/login
      \n if (_route.find(key) == _route.end())
      \n {
      \n _route.insert(std::make_pair(key, h));
      \n }
      \n }<\/p>\n

      \u8def\u7531\u8868\u5c31\u662f unordered_map<\u8def\u5f84, \u5904\u7406\u51fd\u6570>\u3002\u6ce8\u518c\u65f6\u628a \/login \u4e5f\u62fc\u4e0a webroot \u524d\u7f00\u53d8\u6210 .\/wwwroot\/login\u2014\u2014\u548c\u8bf7\u6c42\u89e3\u6790\u540e\u7684 URI \u540c\u4e00\u5957\u683c\u5f0f，\u67e5\u627e\u624d\u80fd\u5bf9\u4e0a\u3002<\/p>\n

      \u8fd9\u5c31\u662f"\u6ce8\u518c\u548c\u67e5\u627e\u5fc5\u987b\u7528\u540c\u4e00\u79cd\u5750\u6807\u7cfb"，\u4e24\u8fb9\u5750\u6807\u7cfb\u4e0d\u4e00\u81f4，\u8def\u7531\u6c38\u8fdc 404，\u800c\u4e14\u662f\u90a3\u79cd\u4ee3\u7801\u770b\u7740\u5168\u5bf9\u3001\u5c31\u662f\u8dd1\u4e0d\u901a\u7684 404\u3002<\/p>\n

      \u6838\u5fc3\u5206\u53d1\u903b\u8f91：<\/p>\n

      void HandlerHttpRquest(std::shared_ptr<Socket> &sock, InetAddr &client)
      \n{
      \n std::string httpreqstr;
      \n \/\/ \u8fd9\u91cc\u5b9e\u9645\u662f"TCP\u7c98\u5305\u95ee\u9898"：HTTP\u62a5\u6587\u4e4b\u95f4\u9760\u7a7a\u884c(\\\\r\\\\n\\\\r\\\\n)\u5206\u754c，\u53earecv\u4e00\u6b21，
      \n \/\/ \u5927\u7f51\u9875\/\u6162\u7f51\u7edc\u65f6\u53ef\u80fd\u53ea\u6536\u5230\u534a\u4e2a\u62a5\u6587，\u4e5f\u53ef\u80fd\u4e00\u6b21\u6536\u5230\u597d\u51e0\u4e2a\u62a5\u6587
      \n \/\/ \u5b8c\u6574\u505a\u6cd5：\u5148\u8bfb\u5230\\\\r\\\\n\\\\r\\\\n\u62ff\u5230header，\u89e3\u6790\u51faContent-Length，\u518d\u5faa\u73afrecv\u628abody\u8bfb\u591f
      \n int n = sock->Recv(&httpreqstr);
      \n if (n > 0)
      \n {
      \n std::cout << "##########################" << std::endl;
      \n std::cout << httpreqstr;
      \n std::cout << "##########################" << std::endl;<\/p>\n

      HttpRequest req;
      \n HttpResponse resp;
      \n if (!req.Deserialize(httpreqstr))
      \n return;
      \n if (req.isInteract())
      \n {
      \n if (_route.find(req.Uri()) == _route.end())
      \n {
      \n \/\/ \u8def\u7531\u8868\u91cc\u6ca1\u6709\u8fd9\u4e2a\u4ea4\u4e92\u8def\u5f84：\u4e0d\u80fd\u4ec0\u4e48\u90fd\u4e0d\u56de！
      \n \/\/ \u4e0d\u56de\u6570\u636e\u7684\u8bdd，\u6d4f\u89c8\u5668\u4f1a\u4e00\u76f4\u5e72\u7b49\u5230\u8d85\u65f6，\u8868\u73b0\u5c31\u662f\u9875\u9762\u5361\u6b7b\u8f6c\u5708
      \n resp.SetCode(404);
      \n std::string text = "<html><h1>404 Not Found<\/h1><\/html>";
      \n resp.SetHeader("Content-Type", "text\/html");
      \n resp.SetHeader("Content-Length", std::to_string(text.size()));
      \n resp.SetText(text);
      \n sock->Send(resp.Serialize());
      \n }
      \n else
      \n {
      \n _route[req.Uri()](req, resp);
      \n std::string response_str = resp.Serialize();
      \n sock->Send(response_str);
      \n }
      \n }
      \n else
      \n {
      \n resp.SetTargetFile(req.Uri());
      \n if (resp.MakeResponse())
      \n {
      \n std::string response_str = resp.Serialize();
      \n sock->Send(response_str);
      \n }
      \n }
      \n }
      \n}<\/p>\n

      \u8fd9\u6bb5\u91cc\u6700\u503c\u5f97\u5708\u51fa\u6765\u7684\u662f\u4ea4\u4e92\u8def\u5f84\u672a\u6ce8\u518c\u65f6\u7684\u5904\u7406\u3002\u539f\u4ee3\u7801\u90a3\u91cc\u662f\u7a7a\u7684\u2014\u2014\u627e\u5230\u8def\u7531\u8d70\u56de\u8c03，\u627e\u4e0d\u5230\u5c31\u4ec0\u4e48\u90fd\u4e0d\u5e72\u3002TCP \u8fde\u63a5\u8fd8\u5f00\u7740，\u5bf9\u65b9\u5728\u7b49\u54cd\u5e94，\u6211\u4eec\u4e0d\u56de\u4e5f\u4e0d\u5173，\u6d4f\u89c8\u5668\u5c31\u4e00\u76f4\u8f6c\u5708\u7b49\u5230\u8d85\u65f6\u3002\u6211\u5b9e\u6d4b：curl exit 52（\u7a7a\u54cd\u5e94）\u3002\u4efb\u4f55\u5206\u652f\u90fd\u5fc5\u987b\u7ed9\u5bf9\u65b9\u4e00\u4e2a\u4ea4\u4ee3，\u54ea\u6015\u662f\u4e2a 404\u3002<\/p>\n

      \u6700\u540e Start \u628a\u81ea\u5df1\u548c TcpServer \u7f1d\u5408：<\/p>\n

      void Start()
      \n{
      \n tsvrp->Start([this](std::shared_ptr<Socket> &sock, InetAddr &client)
      \n { this->HandlerHttpRquest(sock, client); });
      \n}<\/p>\n

      lambda \u6355\u83b7 this，\u628a Http \u7684\u6210\u5458\u65b9\u6cd5\u5305\u88c5\u6210 TcpServer \u8981\u7684 ioservice_t\u3002\u81f3\u6b64：TcpServer \u7ba1\u8fde\u63a5\u548c\u8fdb\u7a0b，Http \u7ba1\u534f\u8bae，Main.cc \u7ba1\u4e1a\u52a1\u2014\u2014\u4e09\u5c42\u5404\u5e72\u5404\u7684\u3002<\/p>\n

      \n

      \u516b\u3001Main.cc\u2014\u2014\u628a\u6240\u6709\u79ef\u6728\u62fc\u8d77\u6765<\/h3>\n

      \"\"<\/p>\n

      int main(int argc, char *argv[])
      \n{
      \n if(argc != 2)
      \n {
      \n std::cout << "Usage: " << argv[0] << " port" << std::endl;
      \n exit(USAGE_ERR);
      \n }
      \n \/\/ \u57511：stoi\u9047\u5230\u975e\u6570\u5b57\u4f1a\u629bstd::invalid_argument，\u8fdb\u7a0b\u76f4\u63a5\u5d29
      \n \/\/ \u57512：stoi\u8fd4\u56deint，\u8d85\u51fa\u7aef\u53e3\u8303\u56f4\u76f4\u63a5\u585e\u8fdbuint16_t\u4f1a\u88ab\u622a\u65ad(99999->34463)
      \n int port_num = 0;
      \n try
      \n {
      \n port_num = std::stoi(argv[1]);
      \n }
      \n catch (const std::exception &e)
      \n {
      \n std::cout << "port must be a number! " << e.what() << std::endl;
      \n exit(USAGE_ERR);
      \n }
      \n if (port_num < 0 || port_num > 65535)
      \n {
      \n std::cout << "port must be in [0, 65535]!" << std::endl;
      \n exit(USAGE_ERR);
      \n }
      \n uint16_t port = static_cast<uint16_t>(port_num);<\/p>\n

      std::unique_ptr<Http> httpsvr = std::make_unique<Http>(port);
      \n httpsvr->RegisterService("\/login", Login); \/\/ \u6ce8\u518c\u8def\u7531：uri -> \u5904\u7406\u51fd\u6570<\/p>\n

      httpsvr->Start();
      \n return 0;
      \n}<\/p>\n

      \u547d\u4ee4\u884c\u53c2\u6570\u7ed9\u7aef\u53e3\u2014\u2014\u7aef\u53e3\u53f7\u4e0d\u8be5\u5199\u6b7b\u5728\u4ee3\u7801\u91cc，\u4e0d\u7136\u6d4b\u8bd5\u73af\u5883 8080\u3001\u7ebf\u4e0a 80 \u5c31\u5f97\u6539\u4ee3\u7801\u91cd\u7f16\u3002<\/p>\n

      std::stoi \u8fd9\u5757\u662f\u6211\u52a0\u56fa\u8fc7\u7684，\u4e24\u5751\u90fd\u5b9e\u6d4b\u8fc7（\u89c1\u7b2c\u4e5d\u8282\u73b0\u8c616）：\u4f20\u5b57\u6bcd\u629b\u5f02\u5e38；\u4f20 99999 \u4e0d\u629b\u5f02\u5e38\u4f46\u585e\u8fdb uint16_t \u9759\u9ed8\u622a\u65ad\u6210 34463，\u670d\u52a1\u5668\u7ed1\u4e86\u4e2a\u83ab\u540d\u5176\u5999\u7684\u7aef\u53e3，\u4f60\u67e5\u534a\u5929"\u4e3a\u4ec0\u4e48 99999 \u8fde\u4e0d\u4e0a"\u3002\u7aef\u53e3\u672c\u8d28\u662f\u4e2a 16 \u4f4d\u65e0\u7b26\u53f7\u6570，\u8303\u56f4 [0, 65535]，\u8fb9\u754c\u5fc5\u987b\u81ea\u5df1\u5b88\u3002<\/p>\n

      \u4e1a\u52a1\u56de\u8c03 Login：<\/p>\n

      void Login(HttpRequest &req, HttpResponse &resp)
      \n{
      \n LOG(LogLevel::DEBUG) << req.Args() << ", \u6211\u4eec\u6210\u529f\u8fdb\u5165\u5230\u4e86\u5904\u7406\u6570\u636e\u7684\u903b\u8f91";
      \n std::string text = "hello: " + req.Args();<\/p>\n

      resp.SetCode(200);
      \n resp.SetHeader("Content-Type","text\/plain");
      \n resp.SetHeader("Content-Length", std::to_string(text.size()));
      \n resp.SetText(text);
      \n}<\/p>\n

      \u771f\u5b9e\u7684\u4e1a\u52a1\u51fd\u6570\u5c31\u8be5\u8fd9\u4e48\u5e72\u51c0：\u4ece req \u62ff\u53c2\u6570（\u8fd9\u91cc\u5077\u61d2\u76f4\u63a5\u56de\u663e），\u5f80 resp \u586b\u72b6\u6001\u7801\u3001\u62a5\u5934\u3001\u6b63\u6587\u3002\u4e1a\u52a1\u4ee3\u7801\u5b8c\u5168\u4e0d\u78b0 socket\u3001\u4e0d\u78b0 recv\/send\u2014\u2014\u7f51\u7edc\u7684\u4e8b TcpServer \u7ba1\u4e86，\u534f\u8bae\u7684\u4e8b Http \u7ba1\u4e86\u3002\u8fd9\u5c31\u662f\u5206\u5c42\u7ed9\u4f60\u7684\u81ea\u7531\u3002<\/p>\n

      \u6ce8\u610f Content-Length \u5fc5\u987b\u548c text.size() \u4e00\u81f4，\u865a\u6807\u957f\u5ea6\u6d4f\u89c8\u5668\u5c31\u50bb\u7b49\u4e0d\u5b58\u5728\u7684\u5b57\u8282\u3002<\/p>\n

      Makefile \u5c31\u56db\u884c，\u4e24\u5904\u8bb2\u7a76：<\/p>\n

      # Mutex.hpp\u7528\u4e86pthread_mutex，\u94fe\u63a5\u8981\u5e26-pthread
      \nmyhttp:Main.cc
      \ng++ -o $@ $^ -std=c++17 -pthread
      \n.PHONY:clean
      \nclean:
      \nrm -f myhttp<\/p>\n

      -std=c++17：std::filesystem\u3001inline \u53d8\u91cf\u3001string::data() \u975e const \u7248，\u5168\u8981 17\u3002-pthread：\u7f16\u8bd1\u5668\/\u94fe\u63a5\u5668\u9700\u8981\u77e5\u9053\u4f60\u5728\u7528 POSIX \u7ebf\u7a0b\u5e93\u2014\u2014\u4e0d\u52a0\u5728\u67d0\u4e9b\u5e73\u53f0\u4e0a\u80fd\u8fc7，\u67d0\u4e9b\u5e73\u53f0\u4e0a\u8fd0\u884c\u65f6\u70b8，\u522b\u8d4c\u3002<\/p>\n

      \u8fd8\u6709\u4e2a Makefile \u7684\u6697\u5751：recipe \u884c（Tab \u5f00\u5934\u7684\u547d\u4ee4）\u91cc\u7684 # \u4f1a\u539f\u6837\u4f20\u7ed9 shell，\u6211\u7b2c\u4e00\u7248\u628a\u6ce8\u91ca\u5199\u5728 g++ \u884c\u5c3e，\u80fd\u8dd1\u4f46\u810f，\u540e\u6765\u632a\u5230\u4e86\u72ec\u7acb\u884c\u3002<\/p>\n

      \n

      \u4e5d\u3001\u8fd0\u884c\u73b0\u8c61：\u771f\u8dd1\u8d77\u6765\u662f\u4ec0\u4e48\u6837<\/h3>\n

      \u7f16\u8bd1\u3001\u542f\u52a8（-pthread \u5df2\u5c31\u4f4d）：<\/p>\n

      $ make
      \ng++ -o myhttp Main.cc -std=c++17 -pthread
      \n$ .\/myhttp 8080
      \n[2026-09-19 15:50:36] [INFO] [2778366] [Socket.hpp] [72] – socket success
      \n[2026-09-19 15:50:36] [INFO] [2778366] [Socket.hpp] [83] – bind success
      \n[2026-09-19 15:50:36] [INFO] [2778366] [Socket.hpp] [93] – listen success<\/p>\n

      \u4e09\u6761\u65e5\u5fd7，\u5bf9\u5e94 BuildTcpSocketMethod \u7684\u4e09\u6b65\u3002[2778366] \u662f\u7236\u8fdb\u7a0b PID\u3002\u670d\u52a1\u5668\u542f\u52a8\u53ea\u5e72\u8fd9\u4e09\u4ef6\u4e8b，\u4e4b\u540e\u6240\u6709\u65e5\u5fd7\u90fd\u662f\u6bcf\u4e2a\u8fde\u63a5\u7684\u5904\u7406\u8fc7\u7a0b\u3002<\/p>\n

      \u73b0\u8c611：curl \u9996\u9875\u2014\u2014\u4e00\u4e2a\u5b8c\u6574\u8bf7\u6c42\u7684\u5168\u8fc7\u7a0b<\/h4>\n

      $ curl -s -o \/dev\/null -w "%{http_code} %{size_download}B %{content_type}\\\\n" http:\/\/127.0.0.1:8080\/
      \n200 2872B text\/html<\/p>\n

      \u670d\u52a1\u7aef\u8fd9\u8fb9\u540c\u65f6\u6253\u51fa\u4e86\u5b8c\u6574\u7684\u4e00\u5957\u65e5\u5fd7：<\/p>\n

      ##########################
      \nGET \/ HTTP\/1.1
      \nHost: 127.0.0.1:8080
      \nUser-Agent: curl\/7.81.0
      \nAccept: *\/*<\/p>\n

      ##########################
      \n[DEBUG] [2778380] [Http.hpp] [54] – GET \/ HTTP\/1.1 <- \u5e72\u6d3b\u7684\u8fdb\u7a0bPID\u662f2778380，\u4e0d\u662f\u7236\u8fdb\u7a0b2778366
      \n[DEBUG] [2778380] [Http.hpp] [65] – _uri: .\/wwwroot\/index.html
      \n[DEBUG] [2778380] [Http.hpp] [66] – _version: HTTP\/1.1
      \n[DEBUG] [2778380] [Http.hpp] [223] – \u8bfb\u53d6\u6587\u4ef6: .\/wwwroot\/index.html<\/p>\n

      \u51e0\u4e2a\u73b0\u8c61\u503c\u5f97\u54c1：<\/p>\n

    • \n

      ##### \u5305\u7740\u7684\u539f\u59cb\u62a5\u6587\u5c31\u662f\u6d4f\u89c8\u5668\/curl \u53d1\u6765\u7684\u7b2c\u4e00\u624b\u6570\u636e，\u7a7a\u884c\u8089\u773c\u53ef\u89c1\u2014\u2014\u548c\u7b2c\u4e8c\u8282\u8bb2\u7684\u683c\u5f0f\u56fe\u4e00\u4e00\u5bf9\u4e0a\u3002<\/p>\n<\/li>\n

    • \n

      \u5904\u7406\u8bf7\u6c42\u7684\u8fdb\u7a0b PID \u662f 2778380，\u542f\u52a8\u65e5\u5fd7\u662f 2778366\u2014\u2014fork \u6a21\u578b\u7684\u76f4\u63a5\u8bc1\u636e：\u7236\u8fdb\u7a0b\u63a5\u5ba2，\u5b64\u513f\u8fdb\u7a0b\u5e72\u6d3b，\u65e5\u5fd7\u91cc\u7684 PID \u4e0d\u4f1a\u9a97\u4eba\u3002<\/p>\n<\/li>\n

    • \n

      URI \/ \u88ab\u81ea\u52a8\u8865\u6210 .\/wwwroot\/index.html\u2014\u2014\u9ed8\u8ba4\u9996\u9875\u903b\u8f91\u751f\u6548\u3002<\/p>\n<\/li>\n

    • \n

      \u6ce8\u610f header \u6253\u5370\u987a\u5e8f\u6bcf\u6b21\u53ef\u80fd\u4e0d\u4e00\u6837（Set-Cookie \u6709\u65f6\u6392\u5728\u6700\u524d）\u2014\u2014\u56e0\u4e3a\u62a5\u5934\u5b58\u5728 unordered_map \u91cc，\u54c8\u5e0c\u8868\u65e0\u5e8f，\u5e8f\u5217\u5316\u65f6\u6309\u904d\u5386\u5e8f\u8f93\u51fa\u3002HTTP \u62a5\u5934\u7684\u987a\u5e8f\u534f\u8bae\u4e0d\u8981\u6c42，\u6d4f\u89c8\u5668\u4e0d\u5728\u4e4e，\u4f46\u5f3a\u8feb\u75c7\u770b\u7740\u96be\u53d7（\u60f3\u56fa\u5b9a\u987a\u5e8f\u5c31\u6362 std::map \u6216\u8005 vector<pair>）\u3002<\/p>\n<\/li>\n

      \u5b8c\u6574\u54cd\u5e94\u6293\u51fa\u6765\u770b：<\/p>\n

      HTTP\/1.0 200 OK
      \nSet-Cookie: username=zhangsan;
      \nContent-Length: 2872
      \nContent-Type: text\/html<\/p>\n

      \u6211\u8fd8\u505a\u4e86\u4e2a\u5b57\u8282\u7ea7\u6821\u9a8c：Content-Length: 2872，\u5b9e\u9645 body \u4e5f\u662f 2872 \u5b57\u8282，\u5206\u6beb\u4e0d\u5dee\u3002\u957f\u5ea6\u62a5\u5934\u865a\u6807\u662f HTTP \u7684\u5927\u5fcc，\u6d4f\u89c8\u5668\u4f1a\u6309 Content-Length \u8bfb\u6b63\u6587，\u865a\u4e86\u5c31\u6c38\u8fdc\u8bfb\u4e0d\u6ee1\u3002<\/p>\n

      \n

      \u73b0\u8c612：\u6d4f\u89c8\u5668\u4f1a\u5077\u5077\u8981 favicon.ico<\/h4>\n

      \u7528 curl \u6a21\u62df\u6d4f\u89c8\u5668\u8865\u4e00\u5200：<\/p>\n

      $ curl -s -o \/dev\/null -w "%{http_code}\\\\n" –max-time 2 http:\/\/127.0.0.1:8080\/favicon.ico
      \n000 <- 2\u79d2\u5185\u670d\u52a1\u5668\u4e00\u4e2a\u5b57\u8282\u90fd\u6ca1\u56de
      \n$ echo $?
      \n52 <- curl: Empty reply from server<\/p>\n

      \u670d\u52a1\u7aef\u65e5\u5fd7：<\/p>\n

      [DEBUG] [2804378] [Http.hpp] [54] – GET \/favicon.ico HTTP\/1.1
      \n[DEBUG] [2804378] [Http.hpp] [65] – _uri: .\/wwwroot\/favicon.ico
      \n[DEBUG] [2804378] [Http.hpp] [193] – \u7528\u6237\u8bf7\u6c42: .\/wwwroot\/favicon.ico\u5ffd\u7565\u5b83<\/p>\n

      \u6d4f\u89c8\u5668\u8bbf\u95ee\u4efb\u4f55\u7f51\u7ad9\u90fd\u4f1a\u81ea\u52a8\u5e26\u4e00\u6b21 \/favicon.ico \u8bf7\u6c42（\u6807\u7b7e\u9875\u56fe\u6807），\u8fd9\u662f\u6d4f\u89c8\u5668\u884c\u4e3a，\u8ddf\u9875\u9762\u4ee3\u7801\u65e0\u5173\u3002\u6211\u4eec\u9009\u62e9\u5ffd\u7565\u2014\u2014\u6d4f\u89c8\u5668\u5bf9\u8fd9\u4e2a\u8bf7\u6c42\u6709\u81ea\u5df1\u7684\u5bb9\u9519，\u9875\u9762\u7167\u5e38\u6e32\u67d3\u3002\u5982\u679c\u4f60\u5728\u65e5\u5fd7\u91cc\u770b\u5230\u83ab\u540d\u5176\u5999\u7684 favicon \u8bf7\u6c42，\u4e0d\u662f\u8c01\u5728\u653b\u51fb\u4f60，\u662f\u6d4f\u89c8\u5668\u7684\u5c0f\u4e60\u60ef\u3002<\/p>\n

      \n

      \u73b0\u8c613：404\u2014\u2014\u515c\u5e95\u9875\u9762<\/h4>\n

      $ curl -s -o \/dev\/null -w "%{http_code} %{size_download}B\\\\n" http:\/\/127.0.0.1:8080\/no_such.html
      \n404 1506B<\/p>\n

      \u8bf7\u6c42\u7684\u6587\u4ef6\u4e0d\u5b58\u5728，\u670d\u52a1\u5668\u8bfb wwwroot\/404.html \u5f53\u6b63\u6587\u8fd4\u56de，1506 \u5b57\u8282\u5c31\u662f 404 \u9875\u9762\u7684\u5927\u5c0f\u3002\u670d\u52a1\u7aef WARNING \u65e5\u5fd7：client want get : .\/wwwroot\/no_such.html but not found\u3002<\/p>\n

      \n

      \u73b0\u8c614：\u52a8\u6001\u4ea4\u4e92 \/login<\/h4>\n

      $ curl -s "http:\/\/127.0.0.1:8080\/login?username=zhangsan&password=123456"
      \nhello: username=zhangsan&password=123456<\/p>\n

      \u8d70\u4e86\u5b8c\u5168\u4e0d\u540c\u7684\u8def：is_interact=true \u2192 \u67e5\u8def\u7531\u8868\u547d\u4e2d .\/wwwroot\/login \u2192 \u56de\u8c03 Login \u2192 \u56de\u663e\u53c2\u6570\u3002\u9759\u6001\u8bf7\u6c42\u8bfb\u6587\u4ef6\u3001\u52a8\u6001\u8bf7\u6c42\u8dd1\u4ee3\u7801，\u5728\u8fd9\u4e2a curl \u91cc\u8089\u773c\u53ef\u89c1\u5730\u5206\u5c94\u4e86\u3002<\/p>\n

      \u53c2\u6570\u91cc\u7684 & \u8bb0\u5f97\u7ed9 shell \u52a0\u5f15\u53f7，\u4e0d\u7136 shell \u628a\u5b83\u5f53\u540e\u53f0\u8fd0\u884c\u7b26，\u4f60\u7684 curl \u4f1a\u83ab\u540d\u5176\u5999\u53ea\u53d1\u4e00\u534a\u3002<\/p>\n

      \n

      \u73b0\u8c615：301 \u91cd\u5b9a\u5411<\/h4>\n

      $ curl -s -o \/dev\/null -w "%{http_code} -> %{redirect_url}\\\\n" http:\/\/127.0.0.1:8080\/redir_test
      \n301 -> https:\/\/www.qq.com\/<\/p>\n

      \u670d\u52a1\u5668\u53ea\u56de\u4e86\u72b6\u6001\u884c 301 Moved Permanently + Location: https:\/\/www.qq.com\/，\u8df3\u8f6c\u662f\u6d4f\u89c8\u5668\/\u5ba2\u6237\u7aef\u5b8c\u6210\u7684\u2014\u2014\u670d\u52a1\u5668\u4ece\u4e0d\u66ff\u4f60\u8df3，\u5b83\u53ea\u6307\u8def\u3002<\/p>\n

      \n

      \u73b0\u8c616：\u53c2\u6570\u4f20\u9519\u7684\u9632\u5b88<\/h4>\n

      $ .\/myhttp abc
      \nport must be a number! stoi
      \n$ echo $?
      \n1
      \n$ .\/myhttp 99999
      \nport must be in [0, 65535]!
      \n$ .\/myhttp -1
      \nport must be in [0, 65535]!
      \n$ .\/myhttp
      \nUsage: .\/myhttp port<\/p>\n

      \u4fee\u590d\u524d\u4f20 abc \u662f\u672a\u6355\u83b7\u7684 std::invalid_argument \u76f4\u63a5 core；\u4f20 99999 \u9759\u9ed8\u622a\u65ad\u6210 34463 \u7ed1\u4e86\u4e2a\u9b3c\u7aef\u53e3\u3002\u73b0\u5728\u90fd\u62e6\u5728\u95e8\u53e3\u3002<\/p>\n

      \n

      \u73b0\u8c617：\u5e76\u53d1<\/h4>\n

      \u591a\u5f00\u51e0\u4e2a\u7ec8\u7aef\u540c\u65f6 curl，\u670d\u52a1\u7aef\u65e5\u5fd7\u4f1a\u51fa\u73b0\u4e0d\u540c\u7684 PID \u4ea4\u9519\u5904\u7406\u2014\u2014\u6bcf\u4e2a\u8fde\u63a5\u4e00\u4e2a\u5b64\u513f\u8fdb\u7a0b，\u5929\u7136\u5e76\u53d1\u3002<\/p>\n

      \u8fd9\u4e5f\u662f fork \u6a21\u578b\u7684\u597d\u5904：\u8fdb\u7a0b\u95f4\u9694\u79bb，\u4e00\u4e2a\u8fde\u63a5\u7684\u5904\u7406\u5d29\u4e86（\u6bd4\u5982 stoi \u629b\u5f02\u5e38），\u6b7b\u7684\u662f\u90a3\u4e2a\u5b64\u513f\u8fdb\u7a0b，\u7236\u8fdb\u7a0b\u548c\u5176\u4ed6\u8fde\u63a5\u6beb\u53d1\u65e0\u635f\u3002\u4ee3\u4ef7\u662f fork \u5f00\u9500\u5927，\u8fde\u63a5\u91cf\u7ea7\u4e0a\u53bb\u4e86\u8981\u6362\u591a\u7ebf\u7a0b\/epoll\u2014\u2014\u90a3\u662f\u540e\u7eed\u8bfe\u7a0b\u7684\u4e8b\u3002<\/p>\n

      \n

      \u5341\u3001\u8e29\u5751\u5b9e\u5f55：\u8fd9\u6b21\u68c0\u67e5\u4fee\u6389\u7684\u95ee\u9898\u6e05\u5355<\/h3>\n

      \u8fd9\u4e00\u8282\u662f\u6211\u6700\u60f3\u5199\u7684\u3002\u8fd9\u7248\u4ee3\u7801\u7f16\u8bd1\u96f6\u8b66\u544a\u3001\u4e00\u8dd1\u5168\u662f\u5751\u2014\u2014\u4e0b\u9762\u6bcf\u4e00\u4e2a\u90fd\u662f\u5b9e\u9645\u8fd0\u884c\u6293\u51fa\u6765\u7684，\u4e0d\u662f\u7eb8\u9762\u63a8\u6f14：<\/p>\n\n\n\n

      #<\/p>\n

      \u4f4d\u7f6e<\/p>\n

      \u95ee\u9898<\/p>\n

      \u73b0\u8c61<\/p>\n

      \u4fee\u6cd5<\/p>\n<\/tr>\n

      \n\n\n\n\n\n\n\n\n\n\n\n
      \n

      1<\/p>\n<\/td>\n

      		\n

      webroot<\/p>\n<\/td>\n

      		\n

      \u4ee3\u7801\u5199 .\/wwwroot，\u78c1\u76d8\u76ee\u5f55\u53eb www.root，\u5dee\u4e00\u4e2a\u70b9<\/p>\n<\/td>\n

      		\n

      \u6240\u6709\u8bf7\u6c42 404，\u5305\u62ec\u9996\u9875<\/p>\n<\/td>\n

      		\n

      \u76ee\u5f55\u6539\u540d wwwroot\u3002Linux \u6587\u4ef6\u7cfb\u7edf\u5927\u5c0f\u5199\u654f\u611f\u3001\u540d\u5b57\u7cbe\u786e\u5339\u914d，\u5dee\u4e00\u4e2a\u5b57\u7b26\u90fd\u4e0d\u884c<\/p>\n<\/td>\n<\/tr>\n

      \n

      2<\/p>\n<\/td>\n

      		\n

      MakeResponse<\/p>\n<\/td>\n

      		\n

      \u6210\u529f\u5206\u652f\u62a5\u5934\u5199\u6210 Conent-Type（\u62fc\u5199\u9519）<\/p>\n<\/td>\n

      		\n

      \u6d4f\u89c8\u5668\u6536\u4e0d\u5230\u6b63\u786e\u7c7b\u578b\u5934<\/p>\n<\/td>\n

      		\n

      \u6539\u56de Content-Type<\/p>\n<\/td>\n<\/tr>\n

      \n

      3<\/p>\n<\/td>\n

      		\n

      Uri2Suffix<\/p>\n<\/td>\n

      		\n

      suffix == "png" \u5c11\u4e2a\u70b9<\/p>\n<\/td>\n

      		\n

      PNG \u6c38\u8fdc\u5339\u914d\u4e0d\u4e0a，Content-Type \u4e3a\u7a7a<\/p>\n<\/td>\n

      		\n

      \u6539\u6210 ".png"<\/p>\n<\/td>\n<\/tr>\n

      \n

      4<\/p>\n<\/td>\n

      		\n

      \u4ea4\u4e92\u8def\u7531\u672a\u547d\u4e2d<\/p>\n<\/td>\n

      		\n

      \u4ec0\u4e48\u90fd\u4e0d\u56de<\/p>\n<\/td>\n

      		\n

      curl exit 52，\u6d4f\u89c8\u5668\u5361\u6b7b\u8f6c\u5708<\/p>\n<\/td>\n

      		\n

      \u56de 404<\/p>\n<\/td>\n<\/tr>\n

      \n

      5<\/p>\n<\/td>\n

      		\n

      ReadFileContent<\/p>\n<\/td>\n

      		\n

      \u6253\u5f00\u6587\u4ef6\u6ca1\u52a0 std::ios::binary；(char*)c_str() \u5f3a\u8f6c\u5199\u5165 UB<\/p>\n<\/td>\n

      		\n

      Windows \u4e0a\u8bfb\u56fe\u5fc5\u574f<\/p>\n<\/td>\n

      		\n

      \u52a0 binary；\u6539\u7528 data()<\/p>\n<\/td>\n<\/tr>\n

      \n

      6<\/p>\n<\/td>\n

      		\n

      stoi<\/p>\n<\/td>\n

      		\n

      \u975e\u6570\u5b57\u5d29 \/ 99999 \u622a\u65ad<\/p>\n<\/td>\n

      		\n

      \u670d\u52a1\u5668\u7ed1\u9519\u7aef\u53e3<\/p>\n<\/td>\n

      		\n

      try-catch + \u8303\u56f4\u68c0\u67e5<\/p>\n<\/td>\n<\/tr>\n

      \n

      7<\/p>\n<\/td>\n

      		\n

      HttpResponse \u6784\u9020<\/p>\n<\/td>\n

      		\n

      _code \u672a\u521d\u59cb\u5316<\/p>\n<\/td>\n

      		\n

      \u5fd8\u8c03 SetCode \u5c31\u53d1\u968f\u673a\u72b6\u6001\u7801<\/p>\n<\/td>\n

      		\n

      \u6784\u9020\u65f6\u7ed9\u9ed8\u8ba4\u503c<\/p>\n<\/td>\n<\/tr>\n

      \n

      8<\/p>\n<\/td>\n

      		\n

      inet_ntop<\/p>\n<\/td>\n

      		\n

      \u7f13\u51b2\u533a\u5927\u5c0f\u4f20\u6210 sizeof(_addr)<\/p>\n<\/td>\n

      		\n

      IPv4 \u6700\u957f\u6070\u597d 16 \u5b57\u8282，\u7eaf\u649e\u5927\u8fd0<\/p>\n<\/td>\n

      		\n

      \u4f20 sizeof(ipbuffer)<\/p>\n<\/td>\n<\/tr>\n

      \n

      9<\/p>\n<\/td>\n

      		\n

      \u521d\u59cb\u5316\u987a\u5e8f<\/p>\n<\/td>\n

      		\n

      \u521d\u59cb\u5316\u5217\u8868\u987a\u5e8f\u548c\u6210\u5458\u58f0\u660e\u987a\u5e8f\u4e0d\u4e00\u81f4<\/p>\n<\/td>\n

      		\n

      -Wall \u62a5 -Wreorder<\/p>\n<\/td>\n

      		\n

      \u6309\u58f0\u660e\u987a\u5e8f\u5199<\/p>\n<\/td>\n<\/tr>\n

      \n

      10<\/p>\n<\/td>\n

      		\n

      Log.hpp \u5168\u5c40\u7b26\u53f7<\/p>\n<\/td>\n

      		\n

      \u5934\u6587\u4ef6\u91cc\u5b9a\u4e49\u51fd\u6570\u548c\u5168\u5c40\u53d8\u91cf\u6ca1\u52a0 inline<\/p>\n<\/td>\n

      		\n

      \u591a\u4e2a .cpp \u5305\u542b\u4f1a multiple definition<\/p>\n<\/td>\n

      		\n

      inline \u51fd\u6570 + C++17 inline \u53d8\u91cf<\/p>\n<\/td>\n<\/tr>\n

      \n

      11<\/p>\n<\/td>\n

      		\n

      Makefile<\/p>\n<\/td>\n

      		\n

      \u6ca1\u5e26 -pthread<\/p>\n<\/td>\n

      		\n

      \u90e8\u5206\u5e73\u53f0\u8fd0\u884c\u65f6\u70b8<\/p>\n<\/td>\n

      		\n

      \u8865\u4e0a<\/p>\n<\/td>\n<\/tr>\n

      \n

      12<\/p>\n<\/td>\n

      		\n

      favicon\/\u7a7aPNG<\/p>\n<\/td>\n

      		\n

      0 \u5b57\u8282\u7684\u56fe\u7247\u6587\u4ef6<\/p>\n<\/td>\n

      		\n

      ReadFileContent \u8fd4\u56de false \u2192 404<\/p>\n<\/td>\n

      		\n

      \u8fd9\u4e0d\u662f bug：\u7a7a\u6587\u4ef6\u672c\u6765\u5c31\u8be5 404，\u653e\u771f\u56fe\u5373\u53ef<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u6700\u5bb9\u6613\u6d3b\u4e0b\u6765\u7684 bug \u662f #2 \u548c #3：\u7f16\u8bd1\u5668\u4e0d\u62a5\u3001\u8fdb\u7a0b\u4e0d\u5d29\u3001\u9875\u9762"\u770b\u8d77\u6765"\u8fd8\u80fd\u5f00\u3002\u8fd9\u79cd bug \u7684\u5b58\u6d3b\u65f6\u95f4\u53ef\u4ee5\u4ee5\u5e74\u8ba1\u3002<\/p>\n

      \u6240\u4ee5\u6211\u7684\u6d41\u7a0b\u662f：\u6539\u5b8c\u5fc5\u987b -Wall -Wextra \u7f16\u8bd1 + curl \u9010\u9879\u5b9e\u6d4b + \u6821\u9a8c\u54cd\u5e94\u5934\u548c\u5b57\u8282\u6570，\u5149"\u770b\u4ee3\u7801\u6ca1\u95ee\u9898"\u4e0d\u4f5c\u6570\u3002<\/p>\n

      \n

      \u5341\u4e00\u3001\u6536\u4e2a\u5c3e：\u8fd9\u4e2a\u9879\u76ee\u7684\u53e3\u8bc0<\/h3>\n

      \u6574\u4e2a\u670d\u52a1\u5668\u62c6\u5b8c，\u5c31\u5e72\u56db\u4ef6\u4e8b：<\/p>\n

      \u5efa\u8fde\u63a5（socket\/bind\/listen），\u63a5\u5ba2\u4eba（accept + fork）， \u6536\u62a5\u6587（recv + \u5207\u884c\u89e3\u6790），\u56de\u62a5\u6587（\u8bfb\u6587\u4ef6 \/ \u8dd1\u4e1a\u52a1 + \u62fc\u54cd\u5e94）\u3002<\/p>\n

      \u5206\u5c42\u53e3\u8bc0：<\/p>\n

      TcpServer \u7ba1\u8fdb\u7a0b，Http \u7ba1\u534f\u8bae，\u4e1a\u52a1\u51fd\u6570\u7ba1\u903b\u8f91，\u8c01\u4e5f\u522b\u8d8a\u754c\u3002<\/p>\n

      \u51e0\u4e2a\u523b\u8fdb DNA \u7684\u70b9：<\/p>\n

    • \n

      TCP \u662f\u5b57\u8282\u6d41，\u62a5\u6587\u8fb9\u754c\u662f\u5e94\u7528\u5c42\u7684\u4e8b\u2014\u2014HTTP \u9760 \\\\r\\\\n \u548c Content-Length，\u4f60\u7684\u534f\u8bae\u5f97\u81ea\u5df1\u5b9a（\u4e0a\u6b21\u662f len\\\\r\\\\njson\\\\r\\\\n，\u4e00\u56de\u4e8b）<\/p>\n<\/li>\n

    • \n

      fork \u540e\u4e0d\u7528\u7684 fd \u7acb\u523b\u5173，\u7236\u5b50\u5404\u5173\u5404\u7684<\/p>\n<\/li>\n

    • \n

      \u4e8c\u6b21 fork：\u513f\u5b50\u4ea4\u63a5\u73ed，\u5b59\u5b50\u5e72\u6d3b，waitpid \u4e0d\u7b49\u5e72\u5b8c\u6d3b<\/p>\n<\/li>\n

    • \n

      \u4efb\u4f55\u5206\u652f\u90fd\u8981\u7ed9\u5bf9\u7aef\u4e00\u4e2a\u4ea4\u4ee3，\u4e0d\u56de\u6570\u636e\u4eba\u5bb6\u5c31\u6302\u7740<\/p>\n<\/li>\n

    • \n

      \u62a5\u5934\u6570\u503c（Content-Length）\u548c\u5b9e\u9645\u5b57\u8282\u6570\u5fc5\u987b\u5206\u6beb\u4e0d\u5dee<\/p>\n<\/li>\n

    • \n

      \u6539\u5b8c\u4ee3\u7801：-Wall -Wextra \u96f6\u8b66\u544a + \u5b9e\u6d4b\u6bcf\u4e00\u9879，\u518d\u76f8\u4fe1"\u6211\u5199\u5bf9\u4e86"<\/p>\n<\/li>\n","protected":false},"excerpt":{"rendered":"

      C \u7f51\u7edc\u7f16\u7a0b\u5b9e\u6218 ：C\u3001HTTP \u670d\u52a1\u5668\u3001socket \u7f16\u7a0b\u3001fork \u591a\u8fdb\u7a0b\u3001HTTP \u534f\u8bae\u89e3\u6790\u3001Linux \u7f51\u7edc\u7f16\u7a0bTCP \u4e09\u6b21\u63e1\u624b\u80cc\u5f97\u6eda\u74dc\u70c2\u719f，socket \u90a3\u51e0\u4e2a\u51fd\u6570\u4e5f\u4f1a\u8c03，\u53ef\u4e00\u65e6\u8981\u81ea\u5df1\u6512\u4e00\u4e2a HTTP \u670d\u52a1\u5668，\u5f88\u591a\u4eba\u5c31\u5361\u4f4f\u4e86：\u62a5\u6587\u683c\u5f0f\u8bb0\u4e0d\u7262\u3001\u4e0d\u77e5\u9053\u8be5\u5207\u51e0\u5c42\u3001\u5199\u5b8c\u4e5f\u4e0d\u77e5\u9053\u5bf9\u4e0d\u5bf9，\u53ea\u80fd\u9760\\”\u770b\u8d77\u6765\u80fd\u8dd1\\”\u81ea\u6211\u5b89\u6170\u3002\u66f4\u9ebb\u70e6\u7684\u662f，\u7b49\u4f60\u771f\u53bb\u8bfb\u522b\u4eba\u7684 HTTP \u670d\u52a1\u5668\u4ee3\u7801&#xff0c<\/p>\n","protected":false},"author":2,"featured_media":108178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11653,151,58,78,191,396],"topic":[],"class_list":["post-108189","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-11653","tag-http","tag-linux","tag-78","tag-191","tag-396"],"yoast_head":"\n\u3010Linux\u3011\u4e09\u5341\u516b.C++ \u624b\u5199 HTTP \u670d\u52a1\u5668\uff1a\u88f8 socket + fork \u591a\u8fdb\u7a0b\uff0c\u4ece HTTP \u62a5\u6587\u89e3\u6790\u5230\u6d4f\u89c8\u5668\u6253\u5f00\u7f51\u9875 - 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