Lua获取系统时间和时间格式化方法及格式化参数
一、系统当前时间对应的时间戳
local ntime = os.time
print(ntime)
二、格式化时间显示，参考下表
常用于设置header等
ngx.header["Last-Modified:"] = os.date("%a, %d %b %Y %X GMT")
ngx.header["Content-Type"] = "text/html; charset=utf-8"
ngx.header["Cache-Control"] = "public"
ngx.header["Expires"] = os.date("%a, %d %b %Y %X GMT", os.time() + cdnCacheTime)
%a | abbreviated weekday name (e.g., Wed) |
%A | full weekday name (e.g., Wednesday) |
%b | abbreviated month name (e.g., Sep) |
%B | full month name (e.g., September) |
%c | date and time (e.g., 09/16/98 23:48:10) |
%d | day of the month (16) [01-31] |
%H | hour, using a 24-hour clock (23) [00-23] |
%I | hour, using a 12-hour clock (11) [01-12] |
%M | minute (48) [00-59] |
%m | month (09) [01-12] |
%p | either "am" or "pm" (pm) |
%S | second (10) [00-61] |
%w | weekday (3) [0-6 = Sunday-Saturday] |
%x | date (e.g., 09/16/98) |
%X | time (e.g., 23:48:10) |
%Y | full year (1998) |
%y | two-digit year (98) [00-99] |
%% | the character '%' |