Nginx WebSocket 配置

location /ws {
    proxy_pass http://127.0.0.1:7270;  // 代理转发地址
    proxy_http_version 1.1;  // 使用http版本为1.1
    proxy_set_header   Host             $host:$server_port;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_read_timeout 120s;  // 超时设置，如果 120 秒内没有通讯，会断开

    // 启用支持websocket连接
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
}

https://www.cnblogs.com/kevingrace/p/9512287.html