proxy_cookie_path 语法
proxy_cookie_path source target;
source 源路径
target 目标路径

使用原因
cookie 的 path 与地址栏上的 path 不一致
浏览器就不会接受这个 cookie，无法传入 JSESSIONID 的 cookie
导致登录验证失败

使用场景
当 nginx 配置的反向代理的路径和源地址路径不一致时使用

使用 Demo

upstream tomcatserver1 {  
             server localhost:5173;  
  
        }
		upstream tomcatserver2 {  
             server 127.0.0.1:84;  
  
        }
server {
        listen        80;
        server_name  d.com;
        
		location /ws/ {
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;		
           proxy_pass  http://tomcatserver2/;      
           proxy_cookie_path / /ws/;
           proxy_set_header   Cookie $http_cookie;
           index index.html index.htm;    
  
         } 
		location / { 
           proxy_set_header Host $host;
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;		
           proxy_pass  http://tomcatserver1;      
           proxy_set_header Cookie $http_cookie;
           index index.html index.htm;    
           proxy_cookie_path / /ws/;
           proxy_set_header   Cookie $http_cookie;
         }
         		 
      
}