我有两种方法可以做到这一点,下面哪一种更有效,而且我需要放置。 htaccess或其他地方
方法1:
summary(bb2[is.na(bb2$time_after_first), ])
first_order_date order_date days_since_first
Min. :2015-01-31 Min. :2015-01-31 Min. : 0.0
1st Qu.:2015-08-31 1st Qu.:2016-02-10 1st Qu.: 52.0
Median :2015-11-30 Median :2016-04-08 Median :123.0
Mean :2015-10-27 Mean :2016-03-25 Mean :150.2
3rd Qu.:2016-01-31 3rd Qu.:2016-05-29 3rd Qu.:211.0
Max. :2016-05-31 Max. :2016-09-04 Max. :582.0
time_after_first
<3months : 0
12-15months: 0
15-18months: 0
18-21months: 0
3-6months : 0
(Other) : 0
NA's :7407
方法2
# Enable GZIP
<ifmodule mod_deflate.c>
AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x-javascript application/javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
</ifmodule>
# Expires Headers - 2678400s = 31 days
<ifmodule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 1 seconds"
ExpiresByType text/html "access plus 7200 seconds"
ExpiresByType image/gif "access plus 2678400 seconds"
ExpiresByType image/jpeg "access plus 2678400 seconds"
ExpiresByType image/png "access plus 2678400 seconds"
ExpiresByType text/css "access plus 518400 seconds"
ExpiresByType text/javascript "access plus 2678400 seconds"
ExpiresByType application/x-javascript "access plus 2678400 seconds"
</ifmodule>
# Cache Headers
<ifmodule mod_headers.c>
# Cache specified files for 31 days
<filesmatch "\.(ico|flv|jpg|jpeg|png|gif|css|swf)$">
Header set Cache-Control "max-age=2678400, public"
</filesmatch>
# Cache HTML files for a couple hours
<filesmatch "\.(html|htm)$">
Header set Cache-Control "max-age=7200, private, must-revalidate"
</filesmatch>
# Cache PDFs for a day
<filesmatch "\.(pdf)$">
Header set Cache-Control "max-age=86400, public"
</filesmatch>
# Cache Javascripts for 31 days
<filesmatch "\.(js)$">
Header set Cache-Control "max-age=2678400, private"
</filesmatch>
</ifmodule>
答案 0 :(得分:0)
启用gzip压缩的最简单方法是在htaccess中添加代码。如果您有权访问服务器根并且知道系统设置,则使用httpd-vhosts.conf
文件启用gzip压缩。