{"id":7662,"date":"2026-08-17T21:14:25","date_gmt":"2026-08-17T13:14:25","guid":{"rendered":"https:\/\/i007.cc\/wordpress\/?p=7662"},"modified":"2026-08-17T23:17:30","modified_gmt":"2026-08-17T15:17:30","slug":"day-2-%e7%bd%91%e7%bb%9c%e5%8d%8f%e8%ae%ae-%e9%9d%a2%e8%af%95%e5%a4%87%e8%80%83%e6%89%8b%e5%86%8c","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7662","title":{"rendered":"Day 2 \u7f51\u7edc\u534f\u8bae \u2014 \u9762\u8bd5\u5907\u8003\u624b\u518c"},"content":{"rendered":"
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\u00a01. TCP \u4e09\u6b21\u63e1\u624b \/ \u56db\u6b21\u6325\u624b<\/h2>\n

\u4e09\u6b21\u63e1\u624b\uff08\u5efa\u7acb\u8fde\u63a5\uff09<\/h4>\n
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Client                    Server\r\n  |  \u2500\u2500 SYN, seq=X \u2500\u2500\u25b6  |    \u7b2c\u4e00\u6b21\uff1a\u6211\u60f3\u8fde\u4f60\uff0c\u6211\u7684\u5e8f\u53f7\u662fX\r\n  |  \u25c0\u2500 SYN+ACK, seq=Y \u2500|    \u7b2c\u4e8c\u6b21\uff1a\u6536\u5230\uff0c\u6211\u7684\u5e8f\u53f7\u662fY\uff0c\u786e\u8ba4\u4f60\u7684X\r\n  |  \u2500\u2500 ACK \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25b6  |    \u7b2c\u4e09\u6b21\uff1a\u6536\u5230\uff0c\u8fde\u63a5\u5efa\u7acb<\/pre>\n
 <\/p>\n<\/div>\n<\/div>\n
\u4e3a\u4ec0\u4e48\u5fc5\u987b\u4e09\u6b21\uff0c\u4e0d\u80fd\u4e24\u6b21\uff1f<\/strong><\/p>\n
\u4e24\u6b21\u63e1\u624b\u540e Client \u5df2\u7ecf\u786e\u8ba4\u53cc\u5411\u901a\u4fe1\u6b63\u5e38\uff0c\u4f46 Server \u4e0d\u77e5\u9053\u81ea\u5df1\u7684\u53d1\u9001\u662f\u5426\u6709\u6548<\/p>\n
\u7b2c\u4e09\u6b21\u63e1\u624b\u5c31\u662f Client \u544a\u8bc9 Server “\u4f60\u53d1\u7684\u6211\u6536\u5230\u4e86”\u3002\u4e09\u6b21\u63e1\u624b\u786e\u4fdd\u53cc\u65b9\u90fd\u80fd\u6b63\u5e38\u6536\u53d1\u3002<\/p>\n
\u8fd8\u6709\u4e00\u4e2a\u539f\u56e0\uff1a\u9632\u6b62\u7f51\u7edc\u4e2d\u5ef6\u8fdf\u7684\u65e7 SYN \u5305\u88ab\u8bef\u8ba4\u4e3a\u65b0\u8fde\u63a5\u8bf7\u6c42\uff0c\u9020\u6210\u8d44\u6e90\u6d6a\u8d39\u3002<\/p>\n
\n
\u56db\u6b21\u6325\u624b\uff08\u65ad\u5f00\u8fde\u63a5\uff09<\/h4>\n
\n
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<\/div>\n<\/div>\n
\n
Client                    Server\r\n  |  \u2500\u2500 FIN \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25b6 |    \u6211\u53d1\u5b8c\u4e86\uff0c\u60f3\u65ad\u5f00\r\n  |  \u25c0\u2500 ACK \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 |    \u6536\u5230\uff0c\u4f46\u6211\u8fd8\u6709\u6570\u636e\u6ca1\u53d1\u5b8c\r\n  |  \u25c0\u2500 FIN \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 |    \u6211\u4e5f\u53d1\u5b8c\u4e86\r\n  |  \u2500\u2500 ACK \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25b6 |    \u597d\u7684\uff0c\u518d\u89c1<\/pre>\n
 <\/p>\n<\/div>\n<\/div>\n
\u4e3a\u4ec0\u4e48\u6325\u624b\u8981\u56db\u6b21\uff1f<\/strong>
\nTCP \u662f\u5168\u53cc\u5de5\u7684\uff0cClient \u548c Server \u5404\u81ea\u6709\u4e00\u4e2a\u53d1\u9001\u901a\u9053\uff0c\u5fc5\u987b\u5206\u522b\u5173\u95ed\u3002Server \u6536\u5230 FIN \u540e\u53ef\u80fd\u8fd8\u6709\u6570\u636e\u6ca1\u53d1\u5b8c\uff0c\u6240\u4ee5 ACK \u548c FIN \u5fc5\u987b\u5206\u5f00\uff0c\u4e0d\u80fd\u5408\u5e76\u6210\u4e09\u6b21\u3002<\/p>\n
TIME_WAIT \u72b6\u6001\uff1a<\/strong> Client \u53d1\u51fa\u6700\u540e\u7684 ACK \u540e\uff0c\u8981\u7b49 2\u00d7MSL\uff08\u7ea6 2 \u5206\u949f\uff09\u624d\u771f\u6b63\u5173\u95ed\uff0c\u9632\u6b62\u6700\u540e\u7684 ACK \u4e22\u5931\u540e Server \u91cd\u53d1 FIN \u65f6\u65e0\u4eba\u54cd\u5e94\u3002<\/p>\n
\n
2. HTTP vs HTTPS \/ TLS \u63e1\u624b \/ \u8bc1\u4e66\u94fe<\/h3>\n
HTTP vs HTTPS<\/h4>\n
HTTP \u662f\u660e\u6587\u4f20\u8f93\uff0c\u6ca1\u6709\u52a0\u5bc6\u3001\u6ca1\u6709\u8eab\u4efd\u9a8c\u8bc1\u3002HTTPS = HTTP + TLS\uff0c\u89e3\u51b3\u4e86\u4e09\u4e2a\u95ee\u9898\uff1a<\/p>\n
    \n
  • \u52a0\u5bc6<\/strong>\uff1a\u4f20\u8f93\u5185\u5bb9\u4e0d\u88ab\u7a83\u542c<\/li>\n
  • \u8ba4\u8bc1<\/strong>\uff1a\u786e\u8ba4\u4f60\u8bbf\u95ee\u7684\u662f\u771f\u6b63\u7684\u670d\u52a1\u5668<\/li>\n
  • \u5b8c\u6574\u6027<\/strong>\uff1a\u5185\u5bb9\u6ca1\u88ab\u7be1\u6539<\/li>\n<\/ul>\n
    \n
    TLS \u63e1\u624b\u8fc7\u7a0b\uff08\u9762\u8bd5\u53ea\u9700\u8bb0\u4f4f\u8fd9\u4e2a\u6d41\u7a0b\uff09<\/h4>\n
    \n
    \n
    <\/div>\n<\/div>\n
    \n
    Client                          Server\r\n  |  \u2500\u2500 Client Hello \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25b6 |   \u53d1\u9001\uff1a\u652f\u6301\u7684\u52a0\u5bc6\u7b97\u6cd5\u3001\u968f\u673a\u6570A\r\n  |  \u25c0\u2500 Server Hello \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 |   \u56de\u590d\uff1a\u9009\u62e9\u7684\u52a0\u5bc6\u7b97\u6cd5\u3001\u968f\u673a\u6570B\u3001\u6570\u5b57\u8bc1\u4e66\r\n  |   \u9a8c\u8bc1\u8bc1\u4e66\uff08\u8bc1\u4e66\u94fe\uff09           |\r\n  |  \u2500\u2500 Pre-Master Secret \u2500\u2500\u2500\u2500\u2500\u25b6|   \u7528\u670d\u52a1\u5668\u516c\u94a5\u52a0\u5bc6\u540e\u53d1\u9001\r\n  |   \u53cc\u65b9\u5404\u81ea\u751f\u6210\u5bf9\u79f0\u5bc6\u94a5          |   \u7528 \u968f\u673a\u6570A + \u968f\u673a\u6570B + Pre-Master Secret \u63a8\u5bfc\r\n  |  \u25c0\u2550\u2550\u2550\u2550\u2550\u2550 \u52a0\u5bc6\u901a\u4fe1\u5f00\u59cb \u2550\u2550\u2550\u2550\u2550\u2550\u25b6 |<\/pre>\n
     <\/p>\n<\/div>\n<\/div>\n
    TLS 1.3 \u7684\u6539\u8fdb\uff1a<\/strong> \u63e1\u624b\u4ece 2-RTT \u7f29\u77ed\u5230 1-RTT\uff0c\u91cd\u8fde\u53ef\u4ee5 0-RTT\uff0c\u5e9f\u5f03\u4e86\u8001\u65e7\u4e0d\u5b89\u5168\u7684\u52a0\u5bc6\u5957\u4ef6\u3002<\/p>\n
    \n
    \u8bc1\u4e66\u94fe<\/h4>\n
    \n
    \n
    <\/div>\n<\/div>\n
    \n
    Root CA\uff08\u6839\u8bc1\u4e66\uff0c\u6d4f\u89c8\u5668\u5185\u7f6e\u4fe1\u4efb\uff09\r\n  \u2514\u2500\u2500 Intermediate CA\uff08\u4e2d\u95f4\u8bc1\u4e66\uff09\r\n        \u2514\u2500\u2500 End Entity Certificate\uff08\u4f60\u7684\u7f51\u7ad9\u8bc1\u4e66\uff09<\/pre>\n
     <\/p>\n<\/div>\n<\/div>\n
    \u9a8c\u8bc1\u8fc7\u7a0b\uff1a\u4ece\u7f51\u7ad9\u8bc1\u4e66\u5f80\u4e0a\u9010\u7ea7\u9a8c\u7b7e\uff0c\u76f4\u5230\u627e\u5230\u6d4f\u89c8\u5668\u5185\u7f6e\u4fe1\u4efb\u7684\u6839\u8bc1\u4e66\u3002\u9a8c\u8bc1\u5185\u5bb9\u5305\u62ec\uff1a\u6709\u6548\u671f\u3001\u57df\u540d\u662f\u5426\u5339\u914d\u3001\u7b7e\u540d\u662f\u5426\u6b63\u786e\u3002<\/p>\n
    \n
    3. DNS \u89e3\u6790\u5168\u6d41\u7a0b<\/h3>\n
    \u7528\u6237\u8f93\u5165 www.example.com<\/code>\uff0c\u53d1\u751f\u4e86\u4ec0\u4e48\uff1a<\/p>\n
    \n
    \n
    <\/div>\n<\/div>\n
    \n
    1. \u6d4f\u89c8\u5668\u7f13\u5b58  \u2192  \u547d\u4e2d\u5c31\u8fd4\u56de\r\n2. \u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58 \/ hosts \u6587\u4ef6  \u2192  \u547d\u4e2d\u5c31\u8fd4\u56de\r\n3. \u672c\u5730 DNS \u89e3\u6790\u5668\uff08\u8def\u7531\u5668\/ISP\uff09  \u2192  \u7f13\u5b58\u672a\u547d\u4e2d\uff0c\u5f00\u59cb\u5411\u5916\u67e5\u8be2\r\n4. \u2192 \u6839\u57df\u540d\u670d\u52a1\u5668\uff1a\".com \u7684 TLD \u670d\u52a1\u5668\u5728\u54ea\uff1f\"\r\n5. \u2192 .com TLD \u670d\u52a1\u5668\uff1a\"example.com \u7684\u6743\u5a01 DNS \u5728\u54ea\uff1f\"\r\n6. \u2192 example.com \u6743\u5a01 DNS\uff1a\"www.example.com \u7684 IP \u662f\u4ec0\u4e48\uff1f\"\r\n7. \u2190 \u8fd4\u56de IP \u5730\u5740\uff0c\u672c\u5730 DNS \u7f13\u5b58\uff08\u6309 TTL\uff09\uff0c\u8fd4\u56de\u7ed9\u6d4f\u89c8\u5668<\/pre>\n
     <\/p>\n<\/div>\n<\/div>\n
    \u5173\u952e\u6982\u5ff5\uff1a<\/strong><\/p>\n
      \n
    • TTL<\/strong>\uff1aDNS \u8bb0\u5f55\u7684\u7f13\u5b58\u6709\u6548\u65f6\u95f4\uff0c\u8d8a\u5c0f\u66f4\u65b0\u8d8a\u5feb\u4f46\u67e5\u8be2\u8d8a\u9891\u7e41<\/li>\n
    • \u8fed\u4ee3\u67e5\u8be2<\/strong>\uff1a\u672c\u5730 DNS \u81ea\u5df1\u4e00\u6b65\u6b65\u95ee\uff08\u4e0a\u9762\u7684\u6d41\u7a0b\uff09<\/li>\n
    • \u9012\u5f52\u67e5\u8be2<\/strong>\uff1a\u6d4f\u89c8\u5668\u95ee\u672c\u5730 DNS\uff0c\u672c\u5730 DNS \u5168\u6743\u4ee3\u52b3<\/li>\n
    • DoH \/ DoT<\/strong>\uff1aDNS over HTTPS \/ TLS\uff0c\u9632\u6b62 DNS \u67e5\u8be2\u88ab\u76d1\u542c\u7be1\u6539<\/li>\n<\/ul>\n
      \n
      4. HTTP\/1.1 vs HTTP\/2 vs HTTP\/3<\/h3>\n
      \u6838\u5fc3\u95ee\u9898\u4e0e\u6f14\u8fdb<\/h4>\n
      \n\n\n\n\n\n\n\n\n\n\n\n
      \u95ee\u9898<\/th>\nHTTP\/1.1<\/th>\nHTTP\/2<\/th>\nHTTP\/3<\/th>\n<\/tr>\n<\/thead>\n
      \u5e76\u53d1\u8bf7\u6c42<\/td>\n\u6bcf\u57df\u540d 6 \u4e2a TCP \u8fde\u63a5<\/td>\n\u5355\u8fde\u63a5\u591a\u8def\u590d\u7528<\/td>\n\u5355\u8fde\u63a5\u591a\u8def\u590d\u7528<\/td>\n<\/tr>\n
      \u961f\u5934\u963b\u585e<\/td>\n\u6709\uff08\u5e94\u7528\u5c42\uff09<\/td>\n\u89e3\u51b3\u4e86\u5e94\u7528\u5c42\uff0cTCP \u5c42\u4ecd\u6709<\/td>\n\u5f7b\u5e95\u89e3\u51b3<\/td>\n<\/tr>\n
      Header<\/td>\n\u6bcf\u6b21\u5b8c\u6574\u53d1\u9001\uff0c\u5197\u4f59\u5927<\/td>\nHPACK \u538b\u7f29<\/td>\nQPACK \u538b\u7f29<\/td>\n<\/tr>\n
      \u4f20\u8f93\u683c\u5f0f<\/td>\n\u6587\u672c<\/td>\n\u4e8c\u8fdb\u5236\u5206\u5e27<\/td>\n\u4e8c\u8fdb\u5236<\/td>\n<\/tr>\n
      \u5e95\u5c42\u534f\u8bae<\/td>\nTCP<\/td>\nTCP<\/td>\nQUIC\uff08\u57fa\u4e8e UDP\uff09<\/td>\n<\/tr>\n
      \u8fde\u63a5\u5efa\u7acb<\/td>\nTCP + TLS \u5171 3-RTT<\/td>\n\u540c\u5de6<\/td>\n1-RTT\uff0c\u91cd\u8fde 0-RTT<\/td>\n<\/tr>\n
      \u7f51\u7edc\u5207\u6362<\/td>\n\u65ad\u8fde<\/td>\n\u65ad\u8fde<\/td>\n\u4e0d\u65ad\u8fde\uff08Connection ID\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
      \u8bb0\u4f4f\u4e00\u53e5\u8bdd\uff1a<\/strong> HTTP\/2 \u89e3\u51b3\u4e86\u5e94\u7528\u5c42\u7684\u961f\u5934\u963b\u585e\uff0c\u4f46 TCP \u4e22\u5305\u65f6\u6574\u4e2a\u8fde\u63a5\u90fd\u8981\u7b49\u91cd\u4f20\uff1bHTTP\/3 \u6362\u6210 QUIC\uff08UDP\uff09\uff0c\u6bcf\u4e2a stream \u72ec\u7acb\uff0c\u4e22\u5305\u53ea\u5f71\u54cd\u90a3\u4e00\u4e2a\u6d41\u3002<\/p>\n
      \n
      5. REST vs gRPC<\/h3>\n
      \u4e00\u53e5\u8bdd\u533a\u522b<\/h4>\n
      REST<\/strong> \u662f\u7ed9\u4eba\u548c\u6d4f\u89c8\u5668\u7528\u7684\uff0cgRPC<\/strong> \u662f\u7ed9\u670d\u52a1\u548c\u670d\u52a1\u7528\u7684\u3002<\/p>\n
      \u8be6\u7ec6\u5bf9\u6bd4<\/h4>\n
      \n\n\n\n\n\n\n\n\n\n\n\n
      \u7ef4\u5ea6<\/th>\nREST<\/th>\ngRPC<\/th>\n<\/tr>\n<\/thead>\n
      \u534f\u8bae<\/td>\nHTTP\/1.1 \u6216 HTTP\/2<\/td>\nHTTP\/2<\/td>\n<\/tr>\n
      \u6570\u636e\u683c\u5f0f<\/td>\nJSON\uff08\u6587\u672c\uff0c\u53ef\u8bfb\uff09<\/td>\nProtocol Buffers\uff08\u4e8c\u8fdb\u5236\uff0c\u9ad8\u6548\uff09<\/td>\n<\/tr>\n
      \u7c7b\u578b\u5b89\u5168<\/td>\n\u65e0\u5f3a\u5236\u7ea6\u675f<\/td>\n.proto \u6587\u4ef6\u5b9a\u4e49\uff0c\u5f3a\u7c7b\u578b<\/td>\n<\/tr>\n
      \u901a\u4fe1\u6a21\u5f0f<\/td>\n\u8bf7\u6c42-\u54cd\u5e94<\/td>\n\u652f\u6301\u53cc\u5411\u6d41\u5f0f\u901a\u4fe1<\/td>\n<\/tr>\n
      \u6027\u80fd<\/td>\n\u4e2d\u7b49<\/td>\n\u9ad8\uff08\u5e8f\u5217\u5316\u5feb\u7ea6 5-10 \u500d\uff09<\/td>\n<\/tr>\n
      \u6d4f\u89c8\u5668\u652f\u6301<\/td>\n\u5b8c\u7f8e<\/td>\n\u6709\u9650\uff08\u9700\u8981 grpc-web\uff09<\/td>\n<\/tr>\n
      \u8c03\u8bd5<\/td>\n\u5bb9\u6613\uff08curl\/Postman\uff09<\/td>\n\u76f8\u5bf9\u590d\u6742<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
      \u4ec0\u4e48\u65f6\u5019\u7528 REST\uff1a<\/strong> \u516c\u5f00 API\u3001\u9700\u8981\u6d4f\u89c8\u5668\u76f4\u63a5\u8bbf\u95ee\u3001\u7b80\u5355 CRUD\u3001\u5bf9\u5916\u63a5\u53e3\u3002<\/p>\n
      \u4ec0\u4e48\u65f6\u5019\u7528 gRPC\uff1a<\/strong> \u5fae\u670d\u52a1\u4e4b\u95f4\u5185\u90e8\u8c03\u7528\u3001\u9700\u8981\u9ad8\u541e\u5410\u4f4e\u5ef6\u8fdf\u3001\u9700\u8981\u6d41\u5f0f\u4f20\u8f93\uff08\u5982\u5b9e\u65f6\u65e5\u5fd7\u3001\u89c6\u9891\u6d41\uff09\u3001\u591a\u8bed\u8a00\u7cfb\u7edf\uff08.proto \u81ea\u52a8\u751f\u6210\u5404\u8bed\u8a00\u4ee3\u7801\uff09\u3002<\/p>\n
      \n
      6. WebSocket vs Long Polling<\/h3>\n
      \u4e09\u79cd”\u5b9e\u65f6”\u65b9\u6848\u5bf9\u6bd4<\/h4>\n
      \u77ed\u8f6e\u8be2\uff08Short Polling\uff09\uff1a<\/strong>
      \n\u5ba2\u6237\u7aef\u6bcf\u9694 N \u79d2\u95ee\u4e00\u6b21”\u6709\u65b0\u6d88\u606f\u5417\uff1f”\u3002\u7b80\u5355\u7c97\u66b4\uff0c\u6d6a\u8d39\u8d44\u6e90\uff0c\u4e0d\u7b97\u5b9e\u65f6\u3002<\/p>\n
      \u957f\u8f6e\u8be2\uff08Long Polling\uff09\uff1a<\/strong><\/p>\n
      \n
      \n
      <\/div>\n<\/div>\n
      \n
      Client \u2500\u2500\u8bf7\u6c42\u2500\u2500\u25b6 Server\uff08\u6302\u8d77\uff0c\u7b49\u6570\u636e\uff09\r\n                 \u6709\u6570\u636e\u4e86\uff01\r\nClient \u25c0\u2500\u2500\u54cd\u5e94\u2500\u2500 Server\r\nClient \u2500\u2500\u7acb\u523b\u518d\u8bf7\u6c42\u2500\u2500\u25b6 Server\uff08\u7ee7\u7eed\u6302\u8d77\uff09<\/pre>\n
       <\/p>\n<\/div>\n<\/div>\n
      \u6bd4\u77ed\u8f6e\u8be2\u5b9e\u65f6\uff0c\u4f46\u672c\u8d28\u8fd8\u662f HTTP \u8bf7\u6c42-\u54cd\u5e94\uff0c\u6bcf\u6b21\u6709\u6d88\u606f\u90fd\u8981\u91cd\u5efa\u8fde\u63a5\uff0c\u9ad8\u5e76\u53d1\u65f6\u670d\u52a1\u5668\u8fde\u63a5\u6570\u538b\u529b\u5927\u3002<\/p>\n
      WebSocket\uff1a<\/strong><\/p>\n
      \n
      \n
      <\/div>\n<\/div>\n
      \n
      Client \u2500\u2500HTTP Upgrade\u2500\u2500\u25b6 Server   \u4e00\u6b21\u63e1\u624b\u5347\u7ea7\r\nClient \u25c0\u2550\u2550 \u6301\u4e45\u53cc\u5411\u8fde\u63a5 \u2550\u2550\u25b6 Server  \u4e4b\u540e\u968f\u65f6\u4e92\u53d1\u6d88\u606f<\/pre>\n
       <\/p>\n<\/div>\n<\/div>\n
      \u771f\u6b63\u7684\u5168\u53cc\u5de5\u5b9e\u65f6\u901a\u4fe1\uff0c\u670d\u52a1\u5668\u53ef\u4ee5\u4e3b\u52a8\u63a8\u9001\uff0c\u5ef6\u8fdf\u6700\u4f4e\uff0c\u9002\u5408\u804a\u5929\u3001\u6e38\u620f\u3001\u5b9e\u65f6\u6570\u636e\u9762\u677f\u3002\u4ee3\u4ef7\u662f\u9700\u8981\u670d\u52a1\u5668\u7ef4\u62a4\u957f\u8fde\u63a5\u72b6\u6001\uff0c\u6c34\u5e73\u6269\u5c55\u9700\u8981\u5904\u7406\u8fde\u63a5\u8def\u7531\u95ee\u9898\uff08\u6bd4\u5982\u7528 Redis Pub\/Sub \u505a\u8de8\u8282\u70b9\u5e7f\u64ad\uff09\u3002<\/p>\n
      \u9009\u62e9\u539f\u5219\uff1a<\/strong><\/p>\n
        \n
      • \u53ea\u9700\u670d\u52a1\u5668\u63a8\u9001 \u2192 SSE\uff08Server-Sent Events\uff0c\u66f4\u7b80\u5355\uff09<\/li>\n
      • \u9700\u8981\u53cc\u5411\u5b9e\u65f6 \u2192 WebSocket<\/li>\n
      • \u6539\u9020\u6210\u672c\u9ad8\u3001\u5076\u53d1\u63a8\u9001 \u2192 Long Polling \u4e5f\u591f\u7528<\/li>\n<\/ul>\n
        \n
        \u9ad8\u9891\u8ffd\u95ee\u5907\u5fd8<\/h3>\n
          \n
        • TCP \u548c UDP \u7684\u533a\u522b\uff1f<\/strong> TCP \u53ef\u9760\u6709\u5e8f\uff0cUDP \u5feb\u4f46\u4e0d\u4fdd\u8bc1\u5230\u8fbe\uff0c\u9002\u5408\u89c6\u9891\/\u6e38\u620f\/DNS<\/li>\n
        • HTTPS \u4e00\u5b9a\u5b89\u5168\u5417\uff1f<\/strong> \u8bc1\u4e66\u53ef\u4ee5\u88ab\u4f2a\u9020\uff08\u4e2d\u95f4\u4eba\u653b\u51fb\uff09\uff0c\u9700\u8981 HSTS + \u8bc1\u4e66\u900f\u660e\u5ea6\u65e5\u5fd7<\/li>\n
        • HTTP\/2 \u7684\u591a\u8def\u590d\u7528\u4e3a\u4ec0\u4e48\u89e3\u51b3\u4e0d\u4e86 TCP \u7684\u961f\u5934\u963b\u585e\uff1f<\/strong> TCP \u662f\u5b57\u8282\u6d41\uff0c\u4e22\u4e00\u4e2a\u5305\u6574\u4e2a\u8fde\u63a5\u7684\u6240\u6709 stream \u90fd\u8981\u7b49\u91cd\u4f20\uff0cHTTP\/2 \u7684 stream \u53ea\u662f\u5e94\u7528\u5c42\u62bd\u8c61<\/li>\n
        • gRPC \u7684\u56db\u79cd\u901a\u4fe1\u6a21\u5f0f\uff1f<\/strong> Unary\uff08\u4e00\u8bf7\u6c42\u4e00\u54cd\u5e94\uff09\u3001Server Streaming\u3001Client Streaming\u3001Bidirectional Streaming<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
          <\/div>\n<\/div>\n<\/div>\n
          \n
          <\/div>\n
          \n
          \n
          \n
          <\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
          <\/div>\n
          <\/div>\n","protected":false},"excerpt":{"rendered":"
          \u00a01. TCP \u4e09\u6b21\u63e1\u624b \/ \u56db\u6b21\u6325\u624b <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[24],"tags":[],"class_list":["post-7662","post","type-post","status-publish","format-standard","hentry","category-value_docs"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7662","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=7662"}],"version-history":[{"count":3,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7662\/revisions"}],"predecessor-version":[{"id":7665,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7662\/revisions\/7665"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=7662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=7662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=7662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}