示例 这些程序的源码和编译脚本存放在 [path_link example example] 目录里。 客户端 这些 HTTP 客户端会向命令行指定的服务器发送 GET 请求，并输出返回结果。爬取客户端会异步抓取排名前 10000 的站点的文档根目录，可用于评估程序的健壮性。所有异步客户端都支持超时设置。 HTTP 同步 [path_link example/http/client/sync/http_client_sync.cpp http_client_sync.cpp] [path_link example/http/client/sync-ssl/http_client_sync_ssl.cpp http_client_sync_ssl.cpp] HTTP 异步 [path_link example/http/client/async/http_client_async.cpp http_client_async.cpp] [path_link example/http/client/async-ssl/http_client_async_ssl.cpp http_client_async_ssl.cpp] HTTP 异步 Unix 域套接字 [path_link example/http/client/async-local/http_client_async_local.cpp http_client_async_local.cpp] 使用 __system_executor__ 的 HTTP 异步模式 [path_link example/http/client/async-ssl-system-executor/http_client_async_ssl_system_executor.cpp http_client_async_ssl_system_executor.cpp] HTTP 协程 [path_link example/http/client/coro/http_client_coro.cpp http_client_coro.cpp] [path_link example/http/client/coro-ssl/http_client_coro_ssl.cpp http_client_coro_ssl.cpp] HTTP C++20 协程 [path_link example/http/client/awaitable/http_client_awaitable.cpp http_client_awaitable.cpp] [path_link example/http/client/awaitable-ssl/http_client_awaitable_ssl.cpp http_client_awaitable_ssl.cpp] HTTP 爬取（异步） [path_link example/http/client/crawl/http_crawl.cpp http_crawl.cpp] HTTP json_body（同步） [path_link example/http/client/body/json_body.hpp json_body.hpp] [path_link example/http/client/body/json_client.cpp json_client.cpp] HTTP client for all methods (synchronous) [path_link example/http/client/methods/http_client_methods.cpp http_client_methods.cpp] 这些 WebSocket 客户端会先连接服务器，发一条消息，收到回复后打印结果，最后断开连接。所有异步客户端都支持设置超时时间。 WebSocket 同步 [path_link example/websocket/client/sync/websocket_client_sync.cpp websocket_client_sync.cpp] [path_link example/websocket/client/sync-ssl/websocket_client_sync_ssl.cpp websocket_client_sync_ssl.cpp] WebSocket 异步 [path_link example/websocket/client/async/websocket_client_async.cpp websocket_client_async.cpp] [path_link example/websocket/client/async-ssl/websocket_client_async_ssl.cpp websocket_client_async_ssl.cpp] WebSocket 异步 Unix 域套接字 [path_link example/websocket/client/async-local/websocket_client_async_local.cpp websocket_client_async_local.cpp] 使用 __system_executor__ 的 WebSocket 异步模式 [path_link example/websocket/client/async-ssl-system-executor/websocket_client_async_ssl_system_executor.cpp websocket_client_async_ssl_system_executor.cpp] WebSocket 协程 [path_link example/websocket/client/coro/websocket_client_coro.cpp websocket_client_coro.cpp] [path_link example/websocket/client/coro-ssl/websocket_client_coro_ssl.cpp websocket_client_coro_ssl.cpp] WebSocket C++20 协程 [path_link example/websocket/client/awaitable/websocket_client_awaitable.cpp websocket_client_awaitable.cpp] 服务器端 这些 HTTP 服务器会从命令行指定的根目录中读取文件并提供给客户端。所有异步服务器都支持设置超时时间。 HTTP 同步 [path_link example/http/server/sync/http_server_sync.cpp http_server_sync.cpp] [path_link example/http/server/sync-ssl/http_server_sync_ssl.cpp http_server_sync_ssl.cpp] HTTP 同步 [path_link example/http/server/async/http_server_async.cpp http_server_async.cpp] [path_link example/http/server/async-ssl/http_server_async_ssl.cpp http_server_async_ssl.cpp] HTTP 异步 Unix 域套接字 [path_link example/http/server/async-local/http_server_async_local.cpp http_server_async_local.cpp] HTTP 协程 [path_link example/http/server/coro/http_server_coro.cpp http_server_coro.cpp] [path_link example/http/server/coro-ssl/http_server_coro_ssl.cpp http_server_coro_ssl.cpp] HTTP 无栈协程 [path_link example/http/server/stackless/http_server_stackless.cpp http_server_stackless.cpp] [path_link example/http/server/stackless-ssl/http_server_stackless_ssl.cpp http_server_stackless_ssl.cpp] HTTP C++20 协程 [path_link example/http/server/awaitable/http_server_awaitable.cpp http_server_awaitable.cpp] HTTP 快速模式（速度优先） [path_link example/http/server/fast/http_server_fast.cpp http_server_fast.cpp] HTTP 精简模式（空间优先） [path_link example/http/server/small/http_server_small.cpp http_server_small.cpp] HTTP 灵活模式（普通 + SSL） [path_link example/http/server/flex/http_server_flex.cpp http_server_flex.cpp] 这些 WebSocket 服务器会把收到的任何消息原样返回，并且保持会话不断开，直到客户端主动断开为止。所有异步服务器都支持设置超时时间。 WebSocket 同步 [path_link example/websocket/server/sync/websocket_server_sync.cpp websocket_server_sync.cpp] [path_link example/websocket/server/sync-ssl/websocket_server_sync_ssl.cpp websocket_server_sync_ssl.cpp] WebSocket 异步 [path_link example/websocket/server/async/websocket_server_async.cpp websocket_server_async.cpp] [path_link example/websocket/server/async-ssl/websocket_server_async_ssl.cpp websocket_server_async_ssl.cpp] WebSocket 异步 Unix 域套接字 [path_link example/websocket/server/async-local/websocket_server_async_local.cpp websocket_server_async_local.cpp] WebSocket 协程 [path_link example/websocket/server/coro/websocket_server_coro.cpp websocket_server_coro.cpp] [path_link example/websocket/server/coro-ssl/websocket_server_coro_ssl.cpp websocket_server_coro_ssl.cpp] WebSocket 无栈协程 [path_link example/websocket/server/stackless/websocket_server_stackless.cpp websocket_server_stackless.cpp] [path_link example/websocket/server/stackless-ssl/websocket_server_stackless_ssl.cpp websocket_server_stackless_ssl.cpp] WebSocket C++20 协程 [path_link example/websocket/server/awaitable/websocket_server_awaitable.cpp websocket_server_awaitable.cpp] WebSocket 快速模式（适用于基准测试） [path_link example/websocket/server/fast/websocket_server_fast.cpp websocket_server_fast.cpp] 服务器端（进阶篇） 这些服务器在同一端口上同时提供 HTTP 和 WebSocket 服务，并展示了高级功能的实现方式。 进阶篇 [itemized_list [Timeouts] [Multi-threaded] [HTTP pipelining] [Parser-oriented HTTP reading] [Dual protocols: HTTP and WebSocket] [Clean exit via SIGINT (CTRL+C) or SIGTERM (kill)] ] [path_link example/advanced/server/advanced_server.cpp advanced_server.cpp] 进阶篇，灵活模式（普通 + SSL） [itemized_list [Timeouts] [Multi-threaded] [HTTP pipelining] [Parser-oriented HTTP reading] [Dual protocols: HTTP and WebSocket] [Flexible ports: plain and SSL on the same port] [Clean exit via SIGINT (CTRL+C) or SIGTERM (kill)] ] [path_link example/advanced/server-flex/advanced_server_flex.cpp advanced_server_flex.cpp] 进阶篇，灵活模式（普通 + SSL）支持可等待操作 [itemized_list [Timeouts] [Multi-threaded] [HTTP pipelining] [Parser-oriented HTTP reading] [Dual protocols: HTTP and WebSocket] [Flexible ports: plain and SSL on the same port] [Clean exit via SIGINT (CTRL+C) or SIGTERM (kill)] [Usage of cancellation_signals] ] [path_link example/advanced/server-flex-awaitable/advanced_server_flex_awaitable.cpp advanced_server_flex_awaitable.cpp] 聊天服务器，多线程版 [itemized_list [Multi-threaded] [Broadcasting Messages] [Multi-user Chat Server] [JavaScript Browser Client] [Parser-oriented HTTP reading] [Dual protocols: HTTP and WebSocket] [Clean exit via SIGINT (CTRL+C) or SIGTERM (kill)] ] [path_link example/websocket/server/chat-multi chat-multi] 聊天服务器 __视频__ 这个示例展示了一个 WebSocket 聊天服务器，支持多个用户同时连接并参与实时群聊。它附带了一个用 JavaScript 和 HTML5 实现的小型前端界面，可以在任意浏览器中运行。该示例还配有一小时的演讲视频，内容包括网络概念讲解，以及客户端和服务器实现细节的深度剖析。该演讲于 [@https://cppcon.org CppCon 2018] 上发布。Beast 示例中的源码相比原始程序有所改进。 WebSocket 聊天服务器与 JavaScript 客户端 组件 特性 源码 服务器 [itemized_list [C++] [Timeouts] [Multi-threaded] [Broadcast to multiple peers] [Dual protocols: HTTP and WebSocket] [Clean exit via SIGINT (CTRL+C) or SIGTERM (kill)] ] [path_link example/websocket/server/chat-multi chat-multi] 客户端 [itemized_list [JavaScript / HTML5] [Runs in the browser] [Delivered by the server] [Only 60 lines total including UI] [Completely portable graphics] ] [path_link example/websocket/server/chat-multi/chat_client.html chat_client.html]