{"id":31320,"date":"2025-11-25T05:22:03","date_gmt":"2025-11-25T05:22:03","guid":{"rendered":"https:\/\/www.dotcom-monitor.com\/blog\/what-is-a-websocket\/"},"modified":"2026-07-16T02:02:28","modified_gmt":"2026-07-16T02:02:28","slug":"what-is-a-websocket","status":"publish","type":"post","link":"https:\/\/www.dotcom-monitor.com\/blog\/zh-hans\/what-is-a-websocket\/","title":{"rendered":"\u4ec0\u4e48\u662f WebSocket\uff1f\u534f\u8bae\u3001API \u548c\u5b9e\u65f6\u8fde\u63a5\u89e3\u6790"},"content":{"rendered":"

\"\u4ec0\u4e48\u662f<\/p>\n

\u4ec0\u4e48\u662f WebSockets\uff1f<\/h2>\n

WebSockets<\/b> \u662f\u4e00\u79cd\u73b0\u4ee3\u7684\u7f51\u7edc\u901a\u4fe1\u534f\u8bae\uff0c\u80fd\u591f\u5b9e\u73b0\u5ba2\u6237\u7aef\uff08\u4f8b\u5982\u7f51\u9875\u6d4f\u89c8\u5668\uff09\u4e0e\u540e\u7aef\u670d\u52a1\u5668\u4e4b\u95f4\u901a\u8fc7\u5355\u4e2a\u6301\u4e45\u7684 TCP \u8fde\u63a5<\/b>\u8fdb\u884c\u7684\u5b9e\u65f6\u53cc\u5411\u4ea4\u4e92<\/b>\u3002<\/p>\n

\u4e0e\u4f20\u7edf\u7684HTTP<\/b>\u4e0d\u540c\uff0cHTTP\u4f9d\u8d56\u4e8e\u5ba2\u6237\u7aef\u4e0d\u65ad\u5411\u670d\u52a1\u5668\u53d1\u51fa\u8bf7\u6c42\u4ee5\u83b7\u53d6\u66f4\u65b0\u7684\u8bf7\u6c42-\u54cd\u5e94\u6a21\u5f0f<\/b>\uff0c\u800cWebSockets\u5efa\u7acb\u4e86\u4e00\u4e2a\u6301\u7eed\u7684\u8fde\u63a5\uff0c\u4f7f\u5f97\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u53cc\u65b9\u90fd\u53ef\u4ee5\u968f\u65f6\u53d1\u9001\u6216\u63a5\u6536\u6d88\u606f<\/b>\u3002\u8fd9\u79cd\u5b9e\u65f6\u6570\u636e\u4ea4\u6362\u6d88\u9664\u4e86\u7531\u53cd\u590d\u8f6e\u8be2\u6216\u5237\u65b0\u9875\u9762\u5e26\u6765\u7684\u5ef6\u8fdf\u3002<\/p>\n

\u7531\u4e8e\u5176\u9ad8\u6548\u548c\u54cd\u5e94\u8fc5\u901f\uff0cWebSockets \u975e\u5e38\u9002\u5408\u9700\u8981\u5373\u65f6\u66f4\u65b0\u548c\u52a8\u6001\u7528\u6237\u4f53\u9a8c\u7684\u5e94\u7528<\/b>\uff0c\u5982\u5b9e\u65f6\u804a\u5929\u5e73\u53f0\u3001\u5b9e\u65f6\u4eea\u8868\u677f\u3001\u591a\u4eba\u6e38\u620f\u3001\u534f\u4f5c\u5de5\u5177\u53ca\u80a1\u7968\u884c\u60c5\u63a8\u9001<\/b>\u3002<\/p>\n

\u901a\u8fc7\u4fdd\u6301\u901a\u4fe1\u901a\u9053\u7684\u5f00\u653e\uff0cWebSockets \u786e\u4fdd\u4e86\u65e0\u7f1d\u7684\u4e8b\u4ef6\u9a71\u52a8\u4ea4\u4e92\uff0c<\/strong>\u5e2e\u52a9\u5f00\u53d1\u8005\u6784\u5efa\u66f4\u5feb\u3001\u66f4\u5177\u5438\u5f15\u529b\u4e14\u9ad8\u5ea6\u4ea4\u4e92\u7684\u7f51\u7edc\u5e94\u7528\uff0c<\/strong>\u5c24\u5176\u662f\u7ed3\u5408\u5f3a\u5927\u7684API \u53ef\u89c2\u6d4b\u5e73\u53f0<\/a>\uff0c\u80fd\u591f\u63d0\u4f9b\u8fde\u63a5\u5065\u5eb7\u3001\u6d88\u606f\u6d41\u53ca\u540e\u7aef\u4f9d\u8d56\u7684\u53ef\u89c6\u5316\u3002<\/p>\n

WebSockets \u5982\u4f55\u5de5\u4f5c<\/h2>\n

\u5efa\u7acb\u8fde\u63a5<\/h3>\n

WebSocket \u8fde\u63a5<\/b>\u59cb\u4e8e\u79f0\u4e3a\u63e1\u624b<\/b>\u7684\u8fc7\u7a0b\u3002\u5ba2\u6237\u7aef\uff08\u901a\u5e38\u662f\u7f51\u9875\u6d4f\u89c8\u5668\uff09\u53d1\u8d77\u4e00\u4e2a\u5305\u542bUpgrade<\/b>\u5934\u8bbe\u7f6e\u4e3a\u201cwebsocket\u201d\u7684HTTP\u8bf7\u6c42<\/b>\u7ed9\u670d\u52a1\u5668\u3002\u8fd9\u8868\u660e\u5ba2\u6237\u7aef\u5e0c\u671b\u4ece\u6807\u51c6HTTP\u534f\u8bae\u5207\u6362\u5230WebSocket\u534f\u8bae<\/b>\u3002<\/p>\n

\u8bf7\u6c42\u4e2d\u8fd8\u5305\u542b\u4e00\u4e2aConnection: Upgrade<\/b>\u5934\u4ee5\u786e\u8ba4\u5347\u7ea7\u8fc7\u7a0b\u3002\u5982\u679c\u670d\u52a1\u5668\u652f\u6301WebSockets\uff0c\u5b83\u5c06\u4ee5\u72b6\u6001\u7801101 Switching Protocols<\/b>\u54cd\u5e94\uff0c\u5e76\u5305\u542b\u4e00\u4e2aUpgrade: websocket<\/b>\u5934\u3002\u63e1\u624b\u5b8c\u6210\u540e\uff0c\u8fde\u63a5\u6210\u529f\u4eceHTTP\u5347\u7ea7\u4e3aWebSocket\u2014\u2014\u5728\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u521b\u5efa\u4e00\u4e2a\u6301\u4e45\u7684\u5168\u53cc\u5de5\u901a\u4fe1\u901a\u9053<\/b>\u3002<\/p>\n

\u5168\u53cc\u5de5\u901a\u4fe1<\/h3>\n

\u8fde\u63a5\u5efa\u7acb\u540e\uff0cWebSockets \u5141\u8bb8\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u8fdb\u884c\u5b9e\u65f6\u7684\u53cc\u5411\u6570\u636e\u4f20\u8f93<\/b>\u3002\u4e0d\u540c\u4e8e\u4f20\u7edfHTTP\u4e2d\u4e25\u683c\u7684\u8bf7\u6c42\u4e0e\u54cd\u5e94\uff0cWebSockets\u5141\u8bb8\u53cc\u65b9\u540c\u65f6\u53d1\u9001\u548c\u63a5\u6536\u6d88\u606f<\/b>\u3002<\/p>\n

\u8fd9\u79cd\u53cc\u5411\u901a\u4fe1<\/b>\u4e00\u76f4\u4fdd\u6301\u6d3b\u8dc3\uff0c\u76f4\u5230\u4efb\u4e00\u65b9\u51b3\u5b9a\u5173\u95ed\u8fde\u63a5\u3002\u6b64\u5916\uff0cWebSockets\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5b50\u534f\u8bae<\/b>\uff0c\u5373\u5728\u6838\u5fc3WebSocket\u534f\u8bae\u4e4b\u4e0a\u5b9a\u4e49\u5e94\u7528\u7279\u5b9a\u7684\u901a\u4fe1\u89c4\u5219\uff0c\u66f4\u65b9\u4fbf\u5904\u7406\u590d\u6742\u6570\u636e\u6d41\u548c\u7279\u6b8a\u6d88\u606f\u683c\u5f0f\u3002<\/p>\n

\u6d88\u606f\u5e27\u7ed3\u6784<\/h3>\n

WebSocket\u901a\u4fe1\u91c7\u7528\u6d88\u606f\u5e27<\/b>\u7ed3\u6784\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u9ad8\u6548\u4e14\u53ef\u9760\u5730\u4f20\u8f93\u3002\u6bcf\u4e2aWebSocket\u6d88\u606f\u7531\uff1a<\/p>\n