Nginx 指令详解

location

正则表达式：依次匹配，位置优先；URI：从左匹配，长度优先；先正则、后 URI。正则表达式支持括号捕获。

语法

location [ = | ~ | ~* | ^~ ] uri { ... }
location @name { ... }

修饰符 

proxy_pass

WebSocket

1.3.13 起支持反向代理 WebSocket。

http {
    # 根据 Upgrade 值设置 Connection
    map $http_upgrade $connection_upgrade {
        default upgrade;
        ''      close;
    }

    server {
        

        location /chat/ {
            proxy_pass http://backend;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }
}

try_files