{"id":3384,"date":"2022-01-18T16:48:59","date_gmt":"2022-01-18T08:48:59","guid":{"rendered":"https:\/\/feizhaojun.com\/?p=3384"},"modified":"2022-01-18T16:50:26","modified_gmt":"2022-01-18T08:50:26","slug":"3384","status":"publish","type":"post","link":"https:\/\/feizhaojun.com\/?p=3384","title":{"rendered":"\u524d\u7aef\u6d4f\u89c8\u5668\u7f13\u5b58\u5728html\u914d\u7f6e"},"content":{"rendered":"

HTML \u7f13\u5b58\u914d\u7f6e\u683c\u5f0f<\/h3>\n

HTML\u6587\u4ef6\u901a\u8fc7\u6807\u7b7e\u7684 http-equiv<\/code> \u5c5e\u6027\u6765\u914d\u7f6eHTML\u6587\u4ef6\u7684 http \u54cd\u5e94\u5934<\/strong>\u3002<\/p>\n

\u5982\uff1a<\/p>\n

<meta http-equiv=\"Cache-Control\" content=\"no-cache, no-store, must-revalidate\" \/>\n<meta http-equiv=\"Pragma\" content=\"no-cache\" \/>\n<meta http-equiv=\"Expires\" content=\"0\" \/>\n<\/code><\/pre>\n
Cache-Control<\/h3>\n
Cache-Control \u88ab\u7528\u4e8e\u5728 http \u8bf7\u6c42\u548c\u54cd\u5e94\u4e2d\uff0c\u901a\u8fc7\u6307\u5b9a\u6307\u4ee4\u6765\u5b9e\u73b0\u7f13\u5b58\u673a\u5236\u3002<\/p>\n
\u7f13\u5b58\u6307\u4ee4\u662f\u5355\u5411<\/strong>\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5728\u8bf7\u6c42\u5934\u4e2d\u8bbe\u7f6e\u7684\u6307\u4ee4\uff0c\u4e0d\u4e00\u5b9a\u88ab\u5305\u542b\u5728\u54cd\u5e94\u5934\u4e2d\u3002<\/p>\n
\u8bf7\u6c42\u65f6\u7684\u7f13\u5b58\u6307\u4ee4\uff1a<\/p>\n
max-age=<seconds>\nmax-stale[=<seconds>]\nmin-fresh=<seconds>\nno-cache\nno-store\nno-transform\nonly-if-cached\n<\/code><\/pre>\n
\u54cd\u5e94\u6d88\u606f\u4e2d\u7684\u6307\u4ee4\uff1a<\/p>\n
must-revalidate\nno-cache\nno-store\nno-transform\npublic\nprivate\nproxy-revalidate\nmax-age=<seconds>\ns-maxage=<seconds>\n<\/code><\/pre>\n
\u5404\u4e2a\u6d88\u606f\u4e2d\u7684\u6307\u4ee4\u542b\u4e49\u5982\u4e0b:<\/p>\n
Public<\/strong><\/p>\n
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Private<\/strong><\/p>\n
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no-cache<\/strong><\/p>\n
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no-store<\/strong><\/p>\n
\u7528\u4e8e\u9632\u6b62\u91cd\u8981\u7684\u4fe1\u606f\u88ab\u65e0\u610f\u7684\u53d1\u5e03\u3002\u5728\u8bf7\u6c42\u6d88\u606f\u4e2d\u53d1\u9001\u5c06\u4f7f\u5f97\u8bf7\u6c42\u548c\u54cd\u5e94\u6d88\u606f\u90fd\u4e0d\u4f7f\u7528\u7f13\u5b58\u3002\u7f13\u5b58\u4e0d\u5e94\u5b58\u50a8\u6709\u5173\u5ba2\u6237\u7aef\u8bf7\u6c42\u6216\u670d\u52a1\u5668\u54cd\u5e94\u7684\u4efb\u4f55\u5185\u5bb9\uff0c\u5373\u4e0d\u4f7f\u7528\u4efb\u4f55\u7f13\u5b58\u3002<\/p>\n
max-age<\/strong><\/p>\n
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s-maxage<\/strong><\/p>\n
\u8986\u76d6max-age\u6216\u8005Expires\u5934\uff0c\u4f46\u662f\u4ec5\u9002\u7528\u4e8e\u5171\u4eab\u7f13\u5b58(\u6bd4\u5982\u5404\u4e2a\u4ee3\u7406)\uff0c\u79c1\u6709\u7f13\u5b58\u4f1a\u5ffd\u7565\u5b83\u3002<\/p>\n
max-stale<\/strong><\/p>\n
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\u6307\u793a\u5ba2\u6237\u673a\u53ef\u4ee5\u63a5\u6536\u8d85\u51fa\u8d85\u65f6\u671f\u95f4\u7684\u54cd\u5e94\u6d88\u606f\u3002\u5982\u679c\u6307\u5b9amax-stale\u6d88\u606f\u7684\u503c\uff0c\u90a3\u4e48\u5ba2\u6237\u673a\u53ef\u4ee5\u63a5\u6536\u8d85\u51fa\u8d85\u65f6\u671f\u6307\u5b9a\u503c\u4e4b\u5185\u7684\u54cd\u5e94\u6d88\u606f\u3002<\/p>\n
min-fresh<\/strong><\/p>\n
\u8868\u793a\u5ba2\u6237\u7aef\u5e0c\u671b\u83b7\u53d6\u4e00\u4e2a\u80fd\u5728\u6307\u5b9a\u7684\u79d2\u6570\u5185\u4fdd\u6301\u5176\u6700\u65b0\u72b6\u6001\u7684\u54cd\u5e94\u3002<\/p>\n
\u6307\u793a\u5ba2\u6237\u673a\u53ef\u4ee5\u63a5\u6536\u54cd\u5e94\u65f6\u95f4\u5c0f\u4e8e\u5f53\u524d\u65f6\u95f4\u52a0\u4e0a\u6307\u5b9a\u65f6\u95f4\u7684\u54cd\u5e94\u3002<\/p>\n
Pragma<\/h3>\n
\u5efa\u8bae\u53ea\u5728\u9700\u8981\u517c\u5bb9 HTTP\/1.0 \u5ba2\u6237\u7aef\u7684\u573a\u5408\u4e0b\u5e94\u7528 Pragma \u9996\u90e8\u3002<\/p>\n
HTTP\/1.1 \u4e2d\u5982\u679c\u6ca1\u6709 Cache-Control\uff0cPragma: no-cache \u4e0e Cache-Control: no-cache \u4e00\u81f4\uff0c\u4f46\u662f\u4e0d\u5efa\u8bae\u3002<\/p>\n
<meta http-equiv=\"pragma\" content=\"no-cache\">\n<\/code><\/pre>\n
\u9ed8\u8ba4\u4e3aprivate\u3002<\/p>\n
\u5176\u4f5c\u7528\u6839\u636e\u4e0d\u540c\u7684\u91cd\u65b0\u6d4f\u89c8\u65b9\u5f0f\u5206\u4e3a\u4ee5\u4e0b\u51e0\u79cd\u60c5\u51b5\uff1a<\/p>\n
1. \u6253\u5f00\u65b0\u7a97\u53e3<\/h5>\n
\u503c\u4e3aprivate\u3001no-cache\u3001must-revalidate\uff0c\u90a3\u4e48\u6253\u5f00\u65b0\u7a97\u53e3\u8bbf\u95ee\u65f6\u90fd\u4f1a\u91cd\u65b0\u8bbf\u95ee\u670d\u52a1\u5668\u3002 \u800c\u5982\u679c\u6307\u5b9a\u4e86max-age\u503c\uff0c\u90a3\u4e48\u5728\u6b64\u503c\u5185\u7684\u65f6\u95f4\u91cc\u5c31\u4e0d\u4f1a\u91cd\u65b0\u8bbf\u95ee\u670d\u52a1\u5668\uff0c\u4f8b\u5982\uff1a<\/p>\n
Cache-control: max-age=5<\/p>\n
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2. \u5728\u5730\u5740\u680f\u56de\u8f66<\/h5>\n
\u503c\u4e3aprivate\u6216must-revalidate\u5219\u53ea\u6709\u7b2c\u4e00\u6b21\u8bbf\u95ee\u65f6\u4f1a\u8bbf\u95ee\u670d\u52a1\u5668\uff0c\u4ee5\u540e\u5c31\u4e0d\u518d\u8bbf\u95ee\u3002 \u503c\u4e3ano-cache\uff0c\u90a3\u4e48\u6bcf\u6b21\u90fd\u4f1a\u8bbf\u95ee\u3002 \u503c\u4e3amax-age\uff0c\u5219\u5728\u8fc7\u671f\u4e4b\u524d\u4e0d\u4f1a\u91cd\u590d\u8bbf\u95ee\u3002<\/p>\n
3. \u6309\u540e\u9000\u6309\u626d<\/h5>\n
\u503c\u4e3aprivate\u3001must-revalidate\u3001max-age\uff0c\u5219\u4e0d\u4f1a\u91cd\u8bbf\u95ee\uff0c \u503c\u4e3ano-cache\uff0c\u5219\u6bcf\u6b21\u90fd\u91cd\u590d\u8bbf\u95ee<\/p>\n
4. \u6309\u5237\u65b0\u6309\u626d \u65e0\u8bba\u4e3a\u4f55\u503c\uff0c\u90fd\u4f1a\u91cd\u590d\u8bbf\u95ee<\/h5>\n
Cache-control\u503c\u4e3a\u201cno-cache\u201d\u65f6\uff0c\u8bbf\u95ee\u6b64\u9875\u9762\u4e0d\u4f1a\u5728Internet\u4e34\u65f6\u6587\u4ef6\u5939\u7559\u4e0b\u9875\u9762\u5907\u4efd\u3002<\/p>\n
Expires<\/h3>\n
<meta http-equiv=\"expires\" content=\"0\">\n<\/code><\/pre>\n
Expires \u54cd\u5e94\u5934\u5305\u542b\u65e5\u671f\/\u65f6\u95f4\uff0c\u5373\u5728\u6b64\u65f6\u5019\u4e4b\u540e\uff0c\u54cd\u5e94\u8fc7\u671f\u3002<\/p>\n
0 \u4ee3\u8868\u7740\u8fc7\u53bb\u7684\u65e5\u671f\uff0c\u5373\u8be5\u8d44\u6e90\u5df2\u7ecf\u8fc7\u671f\u3002<\/p>\n
\u5982\u679c Cache-Control \u8bbe\u7f6e\u4e86 max-age \u6216\u8005 s-max-age\uff0cExpires \u4f1a\u88ab\u5ffd\u7565\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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