nginx运用缓存并与tomcat结合提速

nginx使用缓存并与tomcat结合提速

服务器构架如下nginx+tomcat+mysql

####################nginx.conf#########################

user www-data;
worker_processes? 1;

error_log? /var/log/nginx/error.log;
pid??????? /var/run/nginx.pid;

events {
?? ?use epoll;
?? ?worker_connections? 10240;
}

http {
?? ?include?????? /etc/nginx/mime.types;
?? ?default_type? application/octet-stream;
#这里设置一下log记录方式，方便使用awstats统计。
?? ?log_format main '\$remote_addr - \$remote_user [\$time_local]? '
??????????????????????? '"\$request" \$status \$body_bytes_sent '
??????????????????????????????????????????? '"\$http_referer"
??????????????????????????????????????????? "\$http_user_agent"';

#log的文件名用host的域名来定，呵呵，省得server那里指定了
?? ?access_log /var/log/nginx/\$host.access.log combined;
?? ?sendfile??????? on;
#?? ?tcp_nopush????? on;

?? ?keepalive_timeout? 65;
?? ?tcp_nodelay??????? on;

?? ?gzip? off;#这里要关闭gzip，因为用代理后，再用gzip会有奇怪的问题

#这里是限制速度
?? ?limit_zone?? one? \$binary_remote_addr? 10m;
?? ?limit_req_zone? \$binary_remote_addr? zone=rone:10m?? rate=10r/s;

#指定缓存文件的目录，如果有多个nginx，这个可以共享使用，呵呵，一般人我不告诉他
?? ?proxy_cache_path /home/web/cache levels=1:2 keys_zone=JianelCache:100m? max_size=100m;

#引入其它的conf
?? ?include /etc/nginx/conf.d/*.conf;
?? ?include /etc/nginx/sites-enabled/*;
}

#######################server######################

# 定义后台的tomcat，可以加多个，实现负载均衡
? upstream tomcat {
??? server 127.0.0.1:8080;
??? ip_hash;#根据ip来选择后端的tomcat，使得同一个ip只访问一个tomcat
? }


server {
??? listen?? 80;
??? server_name localhost;#域名
??? location / {
??? ??? root?? /var/www;
??? ??? index? index.jsp;

#使/abc这样的目录自动转到/abc/
?? ? ?? if (-d \$request_filename){
??? ??? ??? rewrite ^/(.*)([^/])\$ http://\$host/\$1\$2/ permanent;
??? ??? }
??? }



??? #error_page? 404? /404.html;

??? # redirect server error pages to the static page /50x.html
??? #
??? error_page?? 500 502 503 504? /50x.html;
??? location = /50x.html {
??? ??? root?? /var/www/nginx-default;
??? }

#这里把首先会查看html文件在不在缓存内，没有就转到后台tomcat处，并把返回内容缓存下来，以被下次使用

#后台的tomcat会把htmlrewrite成jsp再处理，呵呵，这样就不需要真的静态化
??? location ~ \.html {
??????? proxy_set_header??????? X-Real-IP \$remote_addr;
??????? proxy_set_header??????? X-Forwarded-For \$proxy_add_x_forwarded_for;
??????? proxy_set_header??????? Host \$http_host;
??? ??? proxy_cache JianelCache;

??? ??? proxy_cache_valid 200 302 24h;#200和302状态码保存1小时
??? ??? proxy_cache_valid 301 1d;#301状态码保存一天
??? ??? proxy_cache_valid any 10h;#其它的保存一分钟
??? ??? if ( !-f \$request_filename) {
??? ??? ??? ??? proxy_pass? http://tomcat;
??? ??? }
??? }
#这里把jsp都转到后端tomcat处理
??? location ~ \.jsp {
??????? proxy_pass?? http://tomcat;
??? ??? proxy_set_header??????? X-Real-IP \$remote_addr;
??? ??? proxy_set_header??????? X-Forwarded-For \$proxy_add_x_forwarded_for;
??? ??? proxy_set_header??????? Host \$http_host;

#这里是限速，省得tomcat老是挂掉，呵呵

?? ??? limit_conn one 2;
??? ??? limit_req zone=rone burst=5;
??? }
}