Nginx简单配置（二）负载均衡

#user  nobody;
worker_processes  1;
 
#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
 
#pid        logs/nginx.pid;
 
 
events {
    worker_connections  1024;
}
 
 
 
http {
    include       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  logs/access.log  main;
 
    sendfile        on;
    #tcp_nopush     on;
 
    #keepalive_timeout  0;
    keepalive_timeout  65;
 
    #gzip  on;
 
upstream aaa{
      server localhost:8080 weight=10 max_fails=2 fail_timeout=30s; #weight权重，值越大，在负载均衡时分配的请求越多  
  #tomcat配置 <Context docBase="boss" path="/" reloadable="true" source="org.eclipse.jst.jee.server:boss"/></Host> path改为 / 原为 "/boss"
}   #1.down 表示单前的server暂时不参与负载 
#2.weight 默认为1.weight越大，负载的权重就越大。 
#3.max_fails ：允许请求失败的次数默认为1.当超过最大次数时，返回proxy_next_upstream 模块定义的错误 
#4.fail_timeout:max_fails次失败后，暂停的时间。 
#5.backup： 其它所有的非backup机器down或者忙的时候，请求backup机器。所以这台机器压力会最轻。 
 
    server {
        listen       80;
        server_name  localhost;
index index.jsp index.htm index.php;
#root D:\Nginx;  ##项目目录 D:\Nginx\boss\WEB-INF
 
        #charset koi8-r;
 
        #access_log  logs/host.access.log  main;
 
#location / {
        #   root   html;
        #    index  index.html index.htm;   ##进入nginx 的html文件夹下的 index页， 在index 页进行重定向
        #}
 
location / {
            proxy_pass http://aaa;  ##引用upstream 
        }
  
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|txt)$ {  
root D:\Nginx\boss;
expires 24h; #设置过期时间  
  
} 
 
location ~ .*\.(js|css)?$
                {
root D:\Nginx\boss;
                                expires      12h;
                }
 
        #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   html;
        }
 
        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}
 
        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}
 
        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }
 
 
    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;
 
    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}
 
 
    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;
 
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;
 
    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;
 
    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;
 
    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}
 
}