WebSocket 如何有效保持长连接？

WebSocket 如何有效保持长连接？

WebSocket - Web APIs | MDN

What is WebSocket? How it works, performance, and use cases explained

 

Protocol	Use Case Fit	Limitations
WebSockets	Realtime messaging, chat	No built-in fallback or ordering
Server-Sent Events (SSE)	One-way updates	Not bidirectional, no binary support
gRPC	Microservices, API streaming	Limited browser support
HTTP/2	Efficient REST delivery	Still request-response
MQTT	IoT/embedded devices	Complex broker management