#user  nobody;
#工作进程数(worker),一般等于cpu内核数或者两倍
worker_processes  2;

#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  30;

    #压缩设置
    #gzip  on;
    #gzip_types text/javascript text/plain text/css application/xml application/x-javascript;
	

    #Tomcat集群配置  
    upstream myserver {  
      #通过client的IP进行映射  
      #ip_hash;  
      # 负载均衡设置，weight越大越优先分配  
      #server  localhost:8099  weight=5;  
      server  127.0.0.1:8100 weight=1; 
      server  127.0.0.1:8099 weight=1;
    } 

    server {
        listen		80;
        server_name  xym.com;

        #charset koi8-r;
	charset utf-8;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
	    #代理配置
	    proxy_pass http://myserver;  
	    #关闭重定向
	    #proxy_redirect off;
	    proxy_redirect default;
        }

        #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;
    #    }
    #}

}

上面是nginx的conf文件夹的nginx.conf文件配置。

首先要配置两台tomcat的端口号,确保两台tomcat能正常运行，然后主要是下面配置负载均衡。

upstream myserver {  
      #通过client的IP进行映射  
      #ip_hash;  
      # 负载均衡设置，weight越大越优先分配  
      #server  localhost:8099  weight=5;  
      server  127.0.0.1:8100 weight=1; 
      server  127.0.0.1:8099 weight=1;
    }

nginx监听端口和域名地址，我的域名地址就在本机的host文件配置，就想localhost一样

 server {
        listen		80;
        server_name  xym.com;

       ...
       }

下面是跳转的代理配置：

 location / {
            root   html;
            index  index.html index.htm;
	    #代理配置
	    proxy_pass http://myserver;  # "myserver"是上面"upstream"配置的名称
	    #关闭重定向
	    #proxy_redirect off;
	    proxy_redirect default;
        }