nginx 反向代理实例

一、nginx 反向代理实例

      1、实现效果

            通过nginx跳转到tomcat主页面上

       2、nginx配置  URL：http://127.0.0.1:8000/index.html

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    keepalive_timeout  65;

    server {
        listen       8000;
        server_name  localhost;

    

        location / {
            root   html;
			proxy_pass http://127.0.0.1:8010;
            index  one.html;
        }

       
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

     
    }

}

二、nginx 反向代理 实例

       1、实现效果

           使用nginx反向代理，根据访问的路径跳转到不同端口的服务中

        2、nginx配置  URL：http://127.0.0.1:8000/bbb/index.html

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    keepalive_timeout  65;

    server {
        listen       8000;
        server_name  localhost;

    

        location  ~ /aaa/ {

			proxy_pass http://127.0.0.1:8010;
			

        }

		   location  ~ /bbb/ {

			proxy_pass http://127.0.0.1:8013;
			
        }
		
    
    }
}

三、nginx 负载均衡配置

  1、实现效果

       访问一个地址，负载均衡到每个服务器下

①轮询

     每个请求按时间顺序逐一分配到不同的后端服务器，如果后端服务器down掉，能自动剔除。   

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    keepalive_timeout  65;

	upstream tomcatAll{
	
		server  127.0.0.1:8010;
		server  127.0.0.1:8013;
	}
	
	
    server {
        listen       8000;
        server_name  localhost;

    

        location  / {

			proxy_pass http://tomcatAll;
			

        }
    
    }
}

②weight

weight 代表权重，默认为1，权证越高被分配的客户端越多

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    keepalive_timeout  65;

	upstream tomcatAll{
	
		server  127.0.0.1:8010 weight=30;
		server  127.0.0.1:8013 weight=5;
	}
	
	
    server {
        listen       8000;
        server_name  localhost;

    

        location  / {

			proxy_pass http://tomcatAll;
			

        }
    
    }
}

③ip_hash

ip_hash每个请求按访问ip的hash结果分配，这样每个访客固定访问一个后端服务器

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    keepalive_timeout  65;

	upstream tomcatAll{
		ip_hash;	
		server  127.0.0.1:8010;
		server  127.0.0.1:8013;
	}
	
	
    server {
        listen       8000;
        server_name  localhost;

    

        location  / {

			proxy_pass http://tomcatAll;
			

        }
    
    }
}

④fair

按后端服务器的响应时间来分配请求，响应时间短的优先分配

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    keepalive_timeout  65;

	upstream tomcatAll{
		server  127.0.0.1:8010;
		server  127.0.0.1:8013;
		fair; 
	}
	
	
    server {
        listen       8000;
        server_name  localhost;

    

        location  / {

			proxy_pass http://tomcatAll;
			

        }
    
    }
}