优化方案

服务器使用openresty，php，mysql，memcached，redis

插件：wpjam-basic，Nginx-helper

详细步骤

配置redis缓存

首先要安装好上述所有程序

然后修改网站的配置文件(vhost conf)

下面直接贴上我的配置文件，大家可以照修

• upstream redis {
• server 127.0.0.1:6379;
• keepalive 512;
• }
• server
• {
• listen 80;
• #listen [::]:80;
• server_name locjj.com www.locjj.com;
• rewrite ^(.*)$ https://www.$host$1 permanent;
• }
• server
• {
• listen 443 ssl http2;
• #listen [::]:443 ssl http2;
• server_name locjj.com www.locjj.com;
• index index.html index.htm index.php default.html default.htm default.php;
• root /home/wwwroot/locjj.com;
• set $skip_cache 0;
• #POST请求直接调用后端
• if ($request_method = POST) {
• set $skip_cache 1;
• }
• if ($query_string != “”) {
• set $skip_cache 1;
• }
• #不要缓存以下部分
• if ($request_uri ~* “/wp-admin/|/xmlrpc.php|wp-.*.php|/feed/|index.php|sitemap(_index)?.xml”) {
• set $skip_cache 1;
• }
• #不缓存登陆用户和最近评论的用户
• if ($http_cookie ~* “comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in”) {
• set $skip_cache 1;
• }
• location /redis-fetch {
• internal ;
• set $redis_key $args;
• redis_pass redis;
• }
• location /redis-store {
• internal ;
• set_unescape_uri $key $arg_key ;
• redis2_query set $key $echo_request_body;
• redis2_query expire $key 14400;
• redis2_pass redis;
• }
• ssl_certificate /home/wwwroot/ssl/1.crt;
• ssl_certificate_key /home/wwwroot/ssl/1.key;
• ssl_session_timeout 5m;
• ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
• ssl_prefer_server_ciphers on;
• ssl_ciphers “TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5”;
• ssl_session_cache builtin:1000 shared:SSL:10m;
• # openssl dhparam -out /usr/local/openresty/nginx/conf/ssl/dhparam.pem 2048
• ssl_dhparam /usr/local/openresty/nginx/conf/ssl/dhparam.pem;
• include rewrite/wordpress.conf;
• #error_page 404 /404.html;
• # Deny access to PHP files in specific directory
• #location ~ /(wp-content|uploads|wp-includes|images)/.*.php$ { deny all; }
• # include enable-php.conf;
• location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$
• {
• expires 30d;
• }
• location ~ .*.(js|css)?$
• {
• expires 12h;
• }
• location ~ /.well-known {
• allow all;
• }
• location ~ /.
• {
• deny all;
• }
• access_log off;
• location ~ [^/].php(/|$) {
• set $key “nginx-cache:$scheme$request_method$host$request_uri”;
• try_files $uri =404;
• srcache_fetch_skip $skip_cache;
• srcache_store_skip $skip_cache;
• srcache_response_cache_control off;
• set_escape_uri $escaped_key $key;
• srcache_fetch GET /redis-fetch $key;
• srcache_store PUT /redis-store key=$escaped_key;
• more_set_headers ‘X-Cache $srcache_fetch_status’;
• more_set_headers ‘X-Store $srcache_store_status’;
• #PHP版本号有出入的别弄错了
• fastcgi_pass unix:/tmp/php-cgi.sock;
• fastcgi_index index.php;
• include fastcgi.conf;
• fastcgi_param PHP_VALUE “open_basedir=$document_root:/tmp/:/proc/”;
• }

修改好后重启openresty，去wordpress后台安装Nginx-Helper插件，开启redis缓存，其他全部默认即可

这个插件的作用是能够及时的刷新缓存

命中情况可以在服务器上执行

• telnet 127.0.0.1 6379

keyspace_hits为命中次数，keyspace_misses为未命中次数

这里可以看到命中率还是很高的

配置Memcached缓存

在wordpress后台安装wpjam-basic插件，然后点击扩展管理，微信扫码登录

然后将/wp-content/plugins/wpjam-basic/template/object-cache.php复制到/wp-content

即可开启Memcached缓存，点击WPJAM-系统信息可以查看详情

WPJAM插件还有其他很多优化功能，大家可以自己摸索