Nginx与tomcat 实现负载均衡和动静分离

一 配置
1. nginx介绍就不多说了,我使用的是阿里云的centos ,使用yum命令安装 的,很容易。
2. nginx的配置文件:nginx.conf配置
我参考文章,点击查看

配置文件如下:
# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user              nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log;
#error_log  /var/log/nginx/error.log  notice;
#error_log  /var/log/nginx/error.log  info;

pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}
http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    #负载均衡设置,暂时未用到,后面会使用到
    upstream www.###.cn {
    #ip_hash;
        server 127.0.0.1:8080;
    }
    server {
        listen       80;
        server_name  www.lexinli.cn;
        index index.html index.jsp;
        root /home/wwwftp/ROOT;
        #配置Nginx动静分离,定义的静态页面直接从Nginx发布目录读取。
        location ~ .*\.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css)$ 
        { 
              root /home/wwwftp/ROOT; 
              #expires定义用户浏览器缓存的时间为1天,如果静态页面不常更新,可以设置更长这样可以节省带宽和缓解服务器的压力
              expires      1d; 
         } 
        #所有jsp、do的动态请求都交给后面的tomcat处理 
        location ~ (\.jsp)|(\.action)$ 
        { 

              #tomcat地址
              proxy_pass http://127.0.0.1:8080;  
              proxy_redirect off;  
              proxy_set_header HOST $host;  
              proxy_set_header X-Real-IP $remote_addr;  
              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;  
              client_max_body_size 10m;  
              client_body_buffer_size 128k;  
              proxy_connect_timeout 90;  
              proxy_send_timeout 90;  
              proxy_read_timeout 90;  
              proxy_buffer_size 4k;  
              proxy_buffers 4 32k;  
              proxy_busy_buffers_size 64k;  
              proxy_temp_file_write_size 64k;  
        }      
        #location / {  
        #        proxy_connect_timeout   3;  
        #        proxy_send_timeout      30;  
        #        proxy_read_timeout      30;  
        #            proxy_pass http://www.lexinli.cn;  
        #   }
    }
    # Load config files from the /etc/nginx/conf.d directory
    # The default server is in conf.d/default.conf
    include /etc/nginx/conf.d/*.conf;

}

配置完成后 /usr/sbin/nginx -s reload 重新加载配置文件

二. 测试效果:
测试Nginx 和Tomcat高并发的情况下处理静态页面性能如何?
采用了 Linux ab网站压力测试命令来测试一下性能
ab -c 10 -n 1000表示同时处理100个请求并运行1000次index.html文件
1.测试一下Nginx 处理静态页面的性能
访问nginx的:
ab -c 10 -n 1000 http://www.lexinli.cn/index.html
每秒请求数结果:Requests per second: 7095.22 [#/sec] (mean)
直接访问tomcat的:
ab -c 10 -n 1000 http://www.lexinli.cn:8080/index.html
每秒请求数结果:Requests per second: 1675.85 [#/sec] (mean)
静态交给Nginx处理,动态请求交给Tomcat,提高了性能

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