Nginx 的反向代理

#user  nobody;
worker_processes  1;                                                                    //配置文件主要有events块和http块组成,在http块中又包含upstream和server,在server中又包括location块

#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;

　　　　//负载均衡
        upstream myserver {　　　　　　　　　　　　　　　　//浏览器通过172.20.248.117:9001 轮训访问8080和8081  
　　　　　　server 127.0.0.1:8080  weight =10;             
　　　　　　server 127.0.0.1:8081  weight = 5;
　　　　　　//ip_hash

　　　　　}
　　　　<!--1轮询  默认的请求是轮询每一个服务器,如果有一个服务地挂了,自动回剔除
　　　　　　2.权重 在ip后面加上  weight=数字 数字越大,权重越大,访问次数越高
　　　　　　3.ip_hash: 每一个clien固定访问一个服务器,可以解决session共享问题.
　　　　　　4.fair(第三方) 更加服务器的相应时间  响应时间越短,越容易被请求
　　　　-->

　　　　server { listen 9001; server_name 172.20.248.117; #charset koi8-r; #access_log logs/host.access.log main;

　　　　　
　　　　　location / {
　　　　　　　　proxy_pass http://myserver;       
　　　　　　}
        //方向代理
        // location ~/t1/ {
        //   root   html;
        //   proxy_pass http://127.0.0.1:8080;
        //   index  index.html index.htm;
        // }
        
         // location ~/t2/ {
         //   proxy_pass http://127.0.0.1:8081;
         // }
        #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;
    #    }
    #}

}

 

1.在linux上面部署两个tomcat :

修改tomcat中的配置文件,修改这三个地方的端口号

 

 

 

 

 

 2.配置nginx的配置环境