Verified70% confidenceFactTime unknown
WebSocket协议建立持久化双向通信通道，服务器可主动向客户端推送数据，延迟可低至毫秒级
4
Sources
70%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedOnce a WebSocket connection is established, the server can proactively push data to the client without requiring repeated client requests.76% similarUnverified轮询机制相比WebSocket长连接方案的优势在于实现简单、网络要求低、无需维护持久连接，但存在一定延迟和额外网络开销74% similarUnverified通过 HTTP 代理建立 WebSocket 连接时需先发送 CONNECT 请求让代理打开 TCP 隧道，部分轻量级代理不完整支持 CONNECT 处理 WebSocket 持久化特性71% similarUnverified流式输出在技术上依赖HTTP的Server-Sent Events（SSE）或WebSocket协议，两者都需要长连接支持71% similarUnverified流式架构依赖WebSocket或gRPC双向流等长连接协议，而非传统HTTP请求-响应模型70% similar
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