在Nginx中實現WebSocket心跳檢測和重連的方法通常是通過配置proxy_next_upstream和proxy_connect_timeout來實現。具體步驟如下:
proxy_next_upstream error timeout;
proxy_connect_timeout 5s;
upstream websocket_servers {
server 127.0.0.1:8080;
server 127.0.0.1:8081;
}
server {
location /ws/ {
proxy_pass http://websocket_servers;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $http_host;
}
}
通過以上配置,Nginx會在發起連接失敗時嘗試連接其他后端服務器,實現WebSocket的心跳檢測和重連。