{"id":1855,"date":"2025-01-26T11:34:01","date_gmt":"2025-01-26T03:34:01","guid":{"rendered":"https:\/\/www.fanyamin.com\/wordpress\/?p=1855"},"modified":"2025-01-26T11:34:01","modified_gmt":"2025-01-26T03:34:01","slug":"http-2-%e5%8d%8f%e8%ae%ae%e7%ae%80%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/www.fanyamin.com\/wordpress\/?p=1855","title":{"rendered":"HTTP 2 \u534f\u8bae\u7b80\u4ecb"},"content":{"rendered":"<p>\u597d\u7684\uff01\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u8bb2\u89e3 <strong>HTTP\/2<\/strong> \u534f\u8bae\u7684\u6838\u5fc3\u5185\u5bb9\u3001\u4e3b\u8981\u7279\u6027\u4ee5\u53ca\u5b83\u4e3a\u4ec0\u4e48\u5bf9\u73b0\u4ee3\u7f51\u7edc\u901a\u4fe1\uff08\u7279\u522b\u662f gRPC\uff09\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<hr \/>\n<h2><strong>\u4ec0\u4e48\u662f HTTP\/2\uff1f<\/strong><\/h2>\n<p><strong>HTTP\/2<\/strong> \u662f <strong>HTTP\/1.1<\/strong> \u7684\u4e0b\u4e00\u4ee3\u7248\u672c\uff0c\u53d1\u5e03\u4e8e 2015 \u5e74\uff0c\u662f\u7531 IETF \u5f00\u53d1\u7684\u4e00\u4e2a\u6807\u51c6\u534f\u8bae\uff08RFC 7540\uff09\u3002\u5b83\u7684\u76ee\u6807\u662f\u89e3\u51b3 HTTP\/1.1 \u7684\u6027\u80fd\u74f6\u9888\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u5ef6\u8fdf\u3001\u9ad8\u5e26\u5bbd\u73af\u5883\u4e0b\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u6548\u7387\u3002<\/p>\n<p>HTTP\/2 \u7684\u4e3b\u8981\u521b\u65b0\u70b9\u5305\u62ec\uff1a<\/p>\n<ol>\n<li><strong>\u4e8c\u8fdb\u5236\u5206\u5e27<\/strong>\uff1a\u66ff\u4ee3\u4e86 HTTP\/1.1 \u7684\u57fa\u4e8e\u6587\u672c\u7684\u683c\u5f0f\u3002<\/li>\n<li><strong>\u591a\u8def\u590d\u7528<\/strong>\uff1a\u5141\u8bb8\u5728\u540c\u4e00\u8fde\u63a5\u4e0a\u540c\u65f6\u53d1\u9001\u591a\u4e2a\u8bf7\u6c42\u548c\u54cd\u5e94\u3002<\/li>\n<li><strong>\u5934\u90e8\u538b\u7f29<\/strong>\uff1a\u51cf\u5c11\u4e86 HTTP \u62a5\u6587\u5934\u7684\u5f00\u9500\u3002<\/li>\n<li><strong>\u670d\u52a1\u5668\u63a8\u9001<\/strong>\uff1a\u670d\u52a1\u7aef\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u8bf7\u6c42\u4e4b\u524d\u4e3b\u52a8\u63a8\u9001\u8d44\u6e90\u3002<\/li>\n<\/ol>\n<hr \/>\n<h2><strong>HTTP\/2 \u7684\u6838\u5fc3\u7279\u6027<\/strong><\/h2>\n<h3><strong>1. \u4e8c\u8fdb\u5236\u534f\u8bae<\/strong><\/h3>\n<ul>\n<li><strong>HTTP\/1.1<\/strong> \u662f\u57fa\u4e8e\u7eaf\u6587\u672c\u7684\u534f\u8bae\uff0c\u8fd9\u79cd\u683c\u5f0f\u867d\u7136\u6613\u8bfb\uff0c\u4f46\u5728\u4f20\u8f93\u6548\u7387\u4e0a\u5b58\u5728\u52a3\u52bf\u3002<\/li>\n<li><strong>HTTP\/2<\/strong> \u4f7f\u7528 <strong>\u4e8c\u8fdb\u5236\u5206\u5e27<\/strong> \u7684\u65b9\u5f0f\uff0c\u5c06\u6240\u6709\u6570\u636e\u5c01\u88c5\u4e3a\u4e8c\u8fdb\u5236\u5e27\uff0c\u89e3\u6790\u66f4\u9ad8\u6548\u3002<\/li>\n<li><strong>\u5e27\uff08Frame\uff09<\/strong> \u662f HTTP\/2 \u7684\u6700\u5c0f\u901a\u4fe1\u5355\u4f4d\uff0c\u6240\u6709 HTTP \u6570\u636e\uff08\u5982\u5934\u90e8\u3001\u6570\u636e\u4f53\u7b49\uff09\u90fd\u4f1a\u88ab\u5206\u6210\u5e27\u5e76\u4f20\u8f93\u3002<\/li>\n<\/ul>\n<h3><strong>2. \u591a\u8def\u590d\u7528\uff08Multiplexing\uff09<\/strong><\/h3>\n<ul>\n<li>\u5728 HTTP\/1.1 \u4e2d\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u9700\u8981\u5355\u72ec\u7684 TCP \u8fde\u63a5\uff0c\u6216\u8005\u590d\u7528\u8fde\u63a5\u65f6\u5fc5\u987b\u6309\u987a\u5e8f\u5b8c\u6210\uff0c\u5bfc\u81f4\u201c\u961f\u5934\u963b\u585e\u201d\u95ee\u9898\u3002<\/li>\n<li><strong>HTTP\/2<\/strong> \u5141\u8bb8\u5728\u4e00\u4e2a TCP \u8fde\u63a5\u4e0a\u5e76\u884c\u53d1\u9001\u591a\u4e2a\u8bf7\u6c42\u548c\u54cd\u5e94\uff1a\n<ul>\n<li>\u6bcf\u4e2a\u8bf7\u6c42\u548c\u54cd\u5e94\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u5e27\u7ec4\u6210\uff0c\u8fd9\u4e9b\u5e27\u53ef\u4ee5\u4ea4\u9519\uff08Interleave\uff09\u4f20\u8f93\u3002<\/li>\n<li>\u901a\u8fc7\u5e27\u4e2d\u7684 <strong>\u6d41 ID<\/strong>\uff0c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u53ef\u4ee5\u533a\u5206\u4e0d\u540c\u8bf7\u6c42\u7684\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u6548\u679c\uff1a<\/strong><\/p>\n<ul>\n<li>\u4e00\u4e2a\u8fde\u63a5\u4e0a\u53ef\u4ee5\u540c\u65f6\u53d1\u9001\u591a\u4e2a\u8bf7\u6c42\uff0c\u4e0d\u518d\u6709\u963b\u585e\u95ee\u9898\u3002<\/li>\n<li>\u5e26\u5bbd\u5229\u7528\u7387\u66f4\u9ad8\uff0c\u5ef6\u8fdf\u66f4\u4f4e\u3002<\/li>\n<\/ul>\n<h3><strong>3. \u5934\u90e8\u538b\u7f29<\/strong><\/h3>\n<ul>\n<li>HTTP \u62a5\u6587\u7684\u5934\u90e8\u901a\u5e38\u5f88\u5927\uff0c\u5e76\u4e14\u4f1a\u5728\u540c\u4e00\u4f1a\u8bdd\u4e2d\u91cd\u590d\u53d1\u9001\uff08\u6bd4\u5982 Cookie \u548c User-Agent\uff09\u3002<\/li>\n<li>HTTP\/2 \u4f7f\u7528 <strong>HPACK \u7b97\u6cd5<\/strong> \u5bf9\u5934\u90e8\u8fdb\u884c\u538b\u7f29\uff1a\n<ul>\n<li>\u9759\u6001\u8868\u548c\u52a8\u6001\u8868\u4fdd\u5b58\u5e38\u7528\u7684\u5934\u5b57\u6bb5\uff0c\u907f\u514d\u91cd\u590d\u4f20\u8f93\u3002<\/li>\n<li>\u51cf\u5c11\u5e26\u5bbd\u6d6a\u8d39\uff0c\u63d0\u5347\u4f20\u8f93\u6548\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><strong>4. \u670d\u52a1\u5668\u63a8\u9001\uff08Server Push\uff09<\/strong><\/h3>\n<ul>\n<li><strong>HTTP\/2<\/strong> \u5141\u8bb8\u670d\u52a1\u7aef\u5728\u5ba2\u6237\u7aef\u8bf7\u6c42\u67d0\u4e2a\u8d44\u6e90\u65f6\uff0c\u4e3b\u52a8\u63a8\u9001\u4e0e\u8be5\u8d44\u6e90\u76f8\u5173\u7684\u5176\u4ed6\u8d44\u6e90\u3002<\/li>\n<li><strong>\u793a\u4f8b\uff1a<\/strong>\n<ul>\n<li>\u5ba2\u6237\u7aef\u8bf7\u6c42\u4e00\u4e2a HTML \u9875\u9762\u65f6\uff0c\u670d\u52a1\u7aef\u53ef\u4ee5\u540c\u65f6\u63a8\u9001 CSS \u6587\u4ef6\u548c JavaScript \u6587\u4ef6\uff0c\u800c\u65e0\u9700\u5ba2\u6237\u7aef\u989d\u5916\u53d1\u8d77\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u597d\u5904\uff1a<\/strong><\/p>\n<ul>\n<li>\u51cf\u5c11\u5ef6\u8fdf\uff1a\u5ba2\u6237\u7aef\u4e0d\u9700\u8981\u7b49\u5230\u89e3\u6790 HTML \u540e\u518d\u8bf7\u6c42\u76f8\u5173\u8d44\u6e90\u3002<\/li>\n<li>\u63d0\u9ad8\u6027\u80fd\uff1a\u7279\u522b\u9002\u7528\u4e8e\u524d\u7aef\u9875\u9762\u52a0\u8f7d\u7684\u4f18\u5316\u3002<\/li>\n<\/ul>\n<h3><strong>5. \u6d41\u4f18\u5148\u7ea7\uff08Stream Prioritization\uff09<\/strong><\/h3>\n<ul>\n<li>HTTP\/2 \u5f15\u5165\u4e86\u6d41\u7684\u4f18\u5148\u7ea7\u673a\u5236\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e3a\u4e0d\u540c\u6d41\u5206\u914d\u4f18\u5148\u7ea7\u3002<\/li>\n<li>\u670d\u52a1\u7aef\u53ef\u4ee5\u6839\u636e\u4f18\u5148\u7ea7\u51b3\u5b9a\u5982\u4f55\u8c03\u5ea6\u548c\u5206\u914d\u8d44\u6e90\uff0c\u4f18\u5316\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h3><strong>6. \u8fde\u63a5\u590d\u7528<\/strong><\/h3>\n<ul>\n<li>HTTP\/2 \u91cd\u7528\u5355\u4e2a TCP \u8fde\u63a5\uff08\u901a\u5e38\u662f HTTPS \u52a0\u5bc6\u7684\uff09\uff0c\u800c\u4e0d\u4f1a\u50cf HTTP\/1.1 \u90a3\u6837\u4e3a\u6bcf\u4e2a\u8bf7\u6c42\u5efa\u7acb\u65b0\u7684\u8fde\u63a5\u3002<\/li>\n<li>\u51cf\u5c11\u4e86 TCP \u8fde\u63a5\u7684\u521b\u5efa\u548c\u7ef4\u62a4\u5f00\u9500\uff0c\u63d0\u9ad8\u4e86\u7f51\u7edc\u5229\u7528\u7387\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2><strong>HTTP\/2 \u7684\u5e27\u548c\u6d41<\/strong><\/h2>\n<h3><strong>\u5e27\uff08Frame\uff09<\/strong><\/h3>\n<ul>\n<li><strong>\u5e27<\/strong> \u662f HTTP\/2 \u4e2d\u7684\u6700\u5c0f\u5355\u4f4d\u3002<\/li>\n<li>\u6bcf\u4e2a\u5e27\u90fd\u6709\u4e00\u4e2a\u56fa\u5b9a\u7684\u5934\u90e8\uff0c\u5305\u542b\u6d41 ID\u3001\u5e27\u7c7b\u578b\u3001\u957f\u5ea6\u7b49\u4fe1\u606f\u3002<\/li>\n<li>\u4e0d\u540c\u7c7b\u578b\u7684\u5e27\uff1a\n<ol>\n<li><strong>DATA \u5e27<\/strong>\uff1a\u4f20\u8f93\u8bf7\u6c42\u6216\u54cd\u5e94\u7684\u4e3b\u4f53\u3002<\/li>\n<li><strong>HEADERS \u5e27<\/strong>\uff1a\u5305\u542b HTTP \u5934\u90e8\u4fe1\u606f\u3002<\/li>\n<li><strong>SETTINGS \u5e27<\/strong>\uff1a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u4ea4\u6362\u53c2\u6570\u4fe1\u606f\u3002<\/li>\n<li><strong>PING \u5e27<\/strong>\uff1a\u7528\u4e8e\u8fde\u63a5\u7684\u5065\u5eb7\u68c0\u67e5\u3002<\/li>\n<li><strong>RST_STREAM \u5e27<\/strong>\uff1a\u4e2d\u6b62\u67d0\u4e2a\u6d41\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<h3><strong>\u6d41\uff08Stream\uff09<\/strong><\/h3>\n<ul>\n<li><strong>\u6d41<\/strong> \u662f\u7531\u4e00\u7ec4\u5e27\u7ec4\u6210\u7684\u53cc\u5411\u6570\u636e\u6d41\u3002<\/li>\n<li>\u6bcf\u4e2a\u6d41\u90fd\u6709\u552f\u4e00\u7684 ID\uff0c\u7528\u4e8e\u533a\u5206\u4e0d\u540c\u7684\u8bf7\u6c42\u548c\u54cd\u5e94\u3002<\/li>\n<li>\u6d41\u53ef\u4ee5\u88ab\u4f18\u5148\u7ea7\u8c03\u5ea6\uff0c\u5e76\u4e14\u53ef\u4ee5\u72ec\u7acb\u7ec8\u6b62\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2><strong>ALPN \u4e0e HTTP\/2 \u7684\u5173\u7cfb<\/strong><\/h2>\n<ul>\n<li><strong>ALPN\uff08Application-Layer Protocol Negotiation\uff09<\/strong> \u662f TLS \u534f\u8bae\u7684\u4e00\u4e2a\u6269\u5c55\uff0c\u7528\u4e8e\u5728 TLS \u63e1\u624b\u8fc7\u7a0b\u4e2d\u534f\u5546\u5177\u4f53\u7684\u5e94\u7528\u5c42\u534f\u8bae\u3002<\/li>\n<li>\u5728 HTTP\/2 \u7684\u4f7f\u7528\u573a\u666f\u4e0b\uff0cALPN \u7528\u6765\u534f\u5546\u662f\u4f7f\u7528 HTTP\/1.1 \u8fd8\u662f HTTP\/2\u3002<\/li>\n<\/ul>\n<h3><strong>ALPN \u7684\u5de5\u4f5c\u6d41\u7a0b<\/strong><\/h3>\n<ol>\n<li>\u5ba2\u6237\u7aef\u5728\u53d1\u9001 <code>ClientHello<\/code> \u65f6\uff0c\u9644\u5e26\u652f\u6301\u7684\u534f\u8bae\u5217\u8868\uff08\u4f8b\u5982 <code>http\/1.1<\/code> \u548c <code>h2<\/code>\uff09\u3002<\/li>\n<li>\u670d\u52a1\u7aef\u5728\u8fd4\u56de <code>ServerHello<\/code> \u65f6\uff0c\u9009\u62e9\u5176\u4e2d\u4e00\u4e2a\u534f\u8bae\uff08\u6bd4\u5982 <code>h2<\/code> \u8868\u793a HTTP\/2\uff09\u3002<\/li>\n<li>TLS \u63e1\u624b\u6210\u529f\u540e\uff0c\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u4f7f\u7528\u534f\u5546\u7684\u534f\u8bae\u3002<\/li>\n<\/ol>\n<hr \/>\n<h2><strong>HTTP\/2 \u7684\u4f18\u52bf<\/strong><\/h2>\n<ol>\n<li>\n<p><strong>\u6027\u80fd\u63d0\u5347<\/strong>\uff1a<\/p>\n<ul>\n<li>\u51cf\u5c11\u8bf7\u6c42\u5ef6\u8fdf\uff08\u591a\u8def\u590d\u7528\uff09\u3002<\/li>\n<li>\u66f4\u5c11\u7684 TCP \u8fde\u63a5\u6570\u964d\u4f4e\u4e86\u8d44\u6e90\u5f00\u9500\u3002<\/li>\n<li>\u538b\u7f29\u5934\u90e8\u51cf\u5c11\u4e86\u7f51\u7edc\u6d41\u91cf\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u7528\u6237\u4f53\u9a8c\u4f18\u5316<\/strong>\uff1a<\/p>\n<ul>\n<li>\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\u66f4\u5feb\uff0c\u7279\u522b\u9002\u7528\u4e8e\u9ad8\u5ef6\u8fdf\u7f51\u7edc\u3002<\/li>\n<li>\u670d\u52a1\u5668\u63a8\u9001\u53ef\u4ee5\u63d0\u524d\u52a0\u8f7d\u8d44\u6e90\uff0c\u6539\u5584\u54cd\u5e94\u65f6\u95f4\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u9002\u914d\u73b0\u4ee3\u5e94\u7528<\/strong>\uff1a<\/p>\n<ul>\n<li>HTTP\/2 \u662f gRPC \u7684\u5e95\u5c42\u4f20\u8f93\u534f\u8bae\uff0c\u9002\u5408\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u7684\u5fae\u670d\u52a1\u67b6\u6784\u3002<\/li>\n<li>\u5728\u79fb\u52a8\u7aef\u3001IoT \u548c\u5b9e\u65f6\u901a\u4fe1\u7b49\u573a\u666f\u4e2d\u8868\u73b0\u4f18\u5f02\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<h2><strong>HTTP\/2 \u7684\u5e94\u7528\u573a\u666f<\/strong><\/h2>\n<ol>\n<li>\n<p><strong>gRPC<\/strong>\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 HTTP\/2 \u7684\u591a\u8def\u590d\u7528\u7279\u6027\uff0c\u5927\u5e45\u63d0\u5347\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\uff08RPC\uff09\u7684\u6548\u7387\u3002<\/li>\n<li>\u652f\u6301\u6d41\u5f0f\u6570\u636e\u4f20\u8f93\u548c\u53cc\u5411\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Web \u6027\u80fd\u4f18\u5316<\/strong>\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 HTTP\/2 \u63d0\u9ad8\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\uff0c\u4f18\u5316\u7528\u6237\u4f53\u9a8c\u3002<\/li>\n<li>\u5e7f\u6cdb\u7528\u4e8e\u73b0\u4ee3 Web \u670d\u52a1\u5668\u548c\u6d4f\u89c8\u5668\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u5fae\u670d\u52a1\u901a\u4fe1<\/strong>\uff1a<\/p>\n<ul>\n<li>\u5728\u5fae\u670d\u52a1\u4e4b\u95f4\u4f20\u9012\u5927\u91cf\u8bf7\u6c42\uff0cHTTP\/2 \u7684\u9ad8\u6548\u4f20\u8f93\u5927\u5e45\u964d\u4f4e\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<h2><strong>\u603b\u7ed3<\/strong><\/h2>\n<p>HTTP\/2 \u662f HTTP \u534f\u8bae\u7684\u91cd\u8981\u5347\u7ea7\uff0c\u5b83\u901a\u8fc7\u4e8c\u8fdb\u5236\u5206\u5e27\u3001\u591a\u8def\u590d\u7528\u3001\u5934\u90e8\u538b\u7f29\u548c\u670d\u52a1\u5668\u63a8\u9001\u7b49\u7279\u6027\uff0c\u6781\u5927\u5730\u63d0\u5347\u4e86\u4f20\u8f93\u6548\u7387\u548c\u6027\u80fd\u3002\u5bf9\u4e8e gRPC \u8fd9\u6837\u7684\u73b0\u4ee3\u901a\u4fe1\u6846\u67b6\uff0cHTTP\/2 \u662f\u4e00\u4e2a\u7406\u60f3\u7684\u5e95\u5c42\u534f\u8bae\u3002<\/p>\n<p>\u5982\u679c\u60a8\u8fd8\u60f3\u4e86\u89e3\u67d0\u4e9b\u7ec6\u8282\u6216\u7279\u5b9a\u573a\u666f\u7684\u5b9e\u73b0\uff0c\u53ef\u4ee5\u968f\u65f6\u544a\u8bc9\u6211\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u597d\u7684\uff01\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u8bb2\u89e3 HTTP\/2 \u534f\u8bae\u7684\u6838\u5fc3\u5185\u5bb9\u3001\u4e3b\u8981\u7279\u6027\u4ee5\u53ca\u5b83\u4e3a\u4ec0\u4e48\u5bf9\u73b0\u4ee3\u7f51\u7edc\u901a\u4fe1\uff08\u7279\u522b\u662f gRPC\uff09\u975e\u5e38\u91cd\u8981\u3002 \u4ec0\u4e48\u662f HTTP\/2\uff1f HTTP\/2 \u662f HTTP\/1.1 \u7684\u4e0b\u4e00\u4ee3\u7248\u672c\uff0c\u53d1\u5e03\u4e8e 2015 \u5e74\uff0c\u662f\u7531 IETF \u5f00\u53d1\u7684\u4e00\u4e2a\u6807\u51c6\u534f\u8bae\uff08RFC 7540\uff09\u3002\u5b83\u7684\u76ee\u6807\u662f\u89e3\u51b3 HTTP\/1.1 \u7684\u6027\u80fd\u74f6\u9888\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u5ef6\u8fdf\u3001\u9ad8\u5e26\u5bbd\u73af\u5883\u4e0b\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u6548\u7387\u3002 HTTP\/2 \u7684\u4e3b\u8981\u521b\u65b0\u70b9\u5305\u62ec\uff1a \u4e8c\u8fdb\u5236\u5206\u5e27\uff1a\u66ff\u4ee3\u4e86 HTTP\/1.1 \u7684\u57fa\u4e8e\u6587\u672c\u7684\u683c\u5f0f\u3002 \u591a\u8def\u590d\u7528\uff1a\u5141\u8bb8\u5728\u540c\u4e00\u8fde\u63a5\u4e0a\u540c\u65f6\u53d1\u9001\u591a\u4e2a\u8bf7\u6c42\u548c\u54cd\u5e94\u3002 \u5934\u90e8\u538b\u7f29\uff1a\u51cf\u5c11\u4e86 HTTP \u62a5\u6587\u5934\u7684\u5f00\u9500\u3002 \u670d\u52a1\u5668\u63a8\u9001\uff1a\u670d\u52a1\u7aef\u53ef\u4ee5\u5728\u5ba2\u6237\u7aef\u8bf7\u6c42\u4e4b\u524d\u4e3b\u52a8\u63a8\u9001\u8d44\u6e90\u3002 HTTP\/2 \u7684\u6838\u5fc3\u7279\u6027 1. \u4e8c\u8fdb\u5236\u534f\u8bae HTTP\/1.1 \u662f\u57fa\u4e8e\u7eaf\u6587\u672c\u7684\u534f\u8bae\uff0c\u8fd9\u79cd\u683c\u5f0f\u867d\u7136\u6613\u8bfb\uff0c\u4f46\u5728\u4f20\u8f93\u6548\u7387\u4e0a\u5b58\u5728\u52a3\u52bf\u3002 HTTP\/2 \u4f7f\u7528 \u4e8c\u8fdb\u5236\u5206\u5e27 \u7684\u65b9\u5f0f\uff0c\u5c06\u6240\u6709\u6570\u636e\u5c01\u88c5\u4e3a\u4e8c\u8fdb\u5236\u5e27\uff0c\u89e3\u6790\u66f4\u9ad8\u6548\u3002 \u5e27\uff08Frame\uff09 \u662f HTTP\/2 \u7684\u6700\u5c0f\u901a\u4fe1\u5355\u4f4d\uff0c\u6240\u6709 HTTP \u6570\u636e\uff08\u5982\u5934\u90e8\u3001\u6570\u636e\u4f53\u7b49\uff09\u90fd\u4f1a\u88ab\u5206\u6210\u5e27\u5e76\u4f20\u8f93\u3002 2. \u591a\u8def\u590d\u7528\uff08Multiplexing\uff09 \u5728 HTTP\/1.1 \u4e2d\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u9700\u8981\u5355\u72ec\u7684 TCP \u8fde\u63a5\uff0c\u6216\u8005\u590d\u7528\u8fde\u63a5\u65f6\u5fc5\u987b\u6309\u987a\u5e8f\u5b8c\u6210\uff0c\u5bfc\u81f4\u201c\u961f\u5934\u963b\u585e\u201d\u95ee\u9898\u3002 HTTP\/2 \u5141\u8bb8\u5728\u4e00\u4e2a TCP \u8fde\u63a5\u4e0a\u5e76\u884c\u53d1\u9001\u591a\u4e2a\u8bf7\u6c42\u548c\u54cd\u5e94\uff1a \u6bcf\u4e2a\u8bf7\u6c42\u548c\u54cd\u5e94\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u5e27\u7ec4\u6210\uff0c\u8fd9\u4e9b\u5e27\u53ef\u4ee5\u4ea4\u9519\uff08Interleave\uff09\u4f20\u8f93\u3002 [&hellip;] <a class=\"read-more\" href=\"https:\/\/www.fanyamin.com\/wordpress\/?p=1855\" title=\"Permanent Link to: HTTP 2 \u534f\u8bae\u7b80\u4ecb\">&rarr;Read&nbsp;more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1855","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1855"}],"collection":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1855"}],"version-history":[{"count":1,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1855\/revisions"}],"predecessor-version":[{"id":1856,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1855\/revisions\/1856"}],"wp:attachment":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}