tomcat项目集群部署

单节点改多节点以三个节点为例:

(1)nginx配置

(2)使用redis存储用户session完成session共享

(3)基于redis的发布订阅模式实现的websocket的集群部署

1,nginx配置

worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    send_timeout 25;
     
    sendfile        on;
    keepalive_timeout  65;
    fastcgi_connect_timeout 75;
    fastcgi_read_timeout 600;
    fastcgi_send_timeout 600;
    
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
    
    upstream wygyxt {
        server 192.168.11.3:8084;
        server 192.168.11.3:8082;
        server 192.168.11.3:8083;
    }
    
    server{
        listen 7778;
        server_name localhost;
        
        location / {
            proxy_pass   http://wygyxt/;
            include  uwsgi_params;
            proxy_set_header Host $host;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }
    
}

测试的三个服务分别为:

192.168.11.3:8084;
192.168.11.3:8082;
192.168.11.3:8083;
每个服务都是单独可以访问的,使用nginx代理后通过代理地址 192.168.11.3:7778 访问

这个配置涉及到websocket的代理:
(1)添加

    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }

(2)在server中添加(三部分都不能少)

proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;

(3)postman测试

 

必须是post请求;需要在header中设置Content-Type:Content-Type:text/xml;charset=utf-8;参数选择raw-xml,参数体为xml格式.

(2)redis缓存用户信息

(3)发布订阅模式解决websocket集群模式