問題描述

WebSocket connection to 'ws://localhost:8888/MetroCity/ws/endpointChat' failed: Error during WebSocket handshake: Unexpected response code: 403?

官方文檔

http://docs.spring.io/spring/docs/current/spring-framework-reference/html/websocket.html?

問題分析

1、WebSocket 設(shè)置為不允許跨域。

2、服務(wù)器/代理服務(wù)器不支持WebSocket

解決方案

JAVA?

在registry.addEndpoint("/websocket")添加一句setAllowedOrigins("*")?

較舊版本：https://www.iteye.com/blog/mr-shang-2190758?

服務(wù)器設(shè)置

以Nginx為例?

server {listen 6340;location / {proxy_pass http://web;proxy_http_version 1.1; #Nginx在與Node后端通信時使用HTTP/1.1，是WebSockets所必需的proxy_set_header Origin '';proxy_set_header Upgrade $http_upgrade; #Nginx響應(yīng)升級請求，當(dāng)瀏覽器想要使用WebSocket時，該請求由HTTP啟動proxy_set_header Connection "Upgrade";}}

參考文章

https://www.cnblogs.com/fan-gx/p/nginx.html

https://stackoverflow.com/questions/34792682/websocket-failed-error-during-websocket-handshake-unexpected-response-code-40

https://blog.csdn.net/u013269532/article/details/93476458

https://www.iteye.com/blog/mr-shang-2190758

https://blog.csdn.net/weixin_40099554/article/details/83502158

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