本篇文章主要介紹了詳解Nginx反向代理WebSocket響應403的解決辦法，小編覺得挺不錯的，現在分享給大家，也給大家做個參考。一起跟隨小編過來看看吧
在Nginx反向代理一個帶有WebSocket功能的Spring Web程序（源代碼地址 ）時，發現訪問WebSocket接口時總是出現403響應，Nginx的配置參考的是 官方文檔 :
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http {
// ssl 相關配置 ...
map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}
server {
listen 8020;
location /ws {
proxy_pass http://some-ip:8080;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
}
}
}
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唯一不同的是我們的Nginx配置了https。
於是打開Spring日志查看直接訪問和通過Nginx訪問的差別。
直接訪問的日志：
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DEBUG ... o.s.web.servlet.DispatcherServlet : DispatcherServlet with name 'dispatcherServlet' processing GET request for [/ws/gs-guide-websocket/786/kz0qai5l/websocket]
DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Looking up handler method for path /gs-guide-websocket/786/kz0qai5l/websocket
DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Did not find handler method for [/gs-guide-websocket/786/kz0qai5l/websocket]
DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping : Matching patterns for request [/gs-guide-websocket/786/kz0qai5l/websocket] are [/gs-guide-websocket/**]
DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping : URI Template variables for request [/gs-guide-websocket/786/kz0qai5l/websocket] are {}
DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping : Mapping [/gs-guide-websocket/786/kz0qai5l/websocket] to HandlerExecutionChain with handler [org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler@307f6b8c] and 1 interceptor
DEBUG ... o.s.web.servlet.DispatcherServlet : Last-Modified value for [/ws/gs-guide-websocket/786/kz0qai5l/websocket] is: -1
DEBUG ... o.s.web.cors.DefaultCorsProcessor : Skip CORS processing: request is from same origin
DEBUG ... o.s.w.s.s.t.h.DefaultSockJsService : Processing transport request: GET http://localhost:8080/ws/gs-guide-websocket/786/kz0qai5l/websocket
DEBUG ... o.s.web.servlet.DispatcherServlet : Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling
DEBUG ... o.s.web.servlet.DispatcherServlet : Successfully completed request
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通過Nginx訪問的日志：
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DEBUG ... o.s.web.servlet.DispatcherServlet : DispatcherServlet with name 'dispatcherServlet' processing GET request for [/ws/gs-guide-websocket/297/jp1c3ab5/websocket]
DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Looking up handler method for path /gs-guide-websocket/297/jp1c3ab5/websocket
DEBUG ... s.w.s.m.m.a.RequestMappingHandlerMapping : Did not find handler method for [/gs-guide-websocket/297/jp1c3ab5/websocket]
DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping : Matching patterns for request [/gs-guide-websocket/297/jp1c3ab5/websocket] are [/gs-guide-websocket/**]
DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping : URI Template variables for request [/gs-guide-websocket/297/jp1c3ab5/websocket] are {}
DEBUG ... o.s.w.s.s.s.WebSocketHandlerMapping : Mapping [/gs-guide-websocket/297/jp1c3ab5/websocket] to HandlerExecutionChain with handler [org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler@307f6b8c] and 1 interceptor
DEBUG ... o.s.web.servlet.DispatcherServlet : Last-Modified value for [/ws/gs-guide-websocket/297/jp1c3ab5/websocket] is: -1
DEBUG ... o.s.w.s.s.t.h.DefaultSockJsService : Processing transport request: GET http://localhost:8080/ws/gs-guide-websocket/297/jp1c3ab5/websocket
DEBUG ... o.s.w.s.s.s.OriginHandshakeInterceptor : Handshake request rejected, Origin header value https://some-host.com not allowed
DEBUG ... o.s.w.s.s.s.HandshakeInterceptorChain : org.springframework.web.socket.server.support.OriginHandshakeInterceptor@25ce6ad4 returns false from beforeHandshake - precluding handshake
DEBUG ... o.s.web.servlet.DispatcherServlet : Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling
DEBUG ... o.s.web.servlet.DispatcherServlet : Successfully completed request
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注意到直接訪問的日志里有這么一條：
復制代碼代碼如下:
DEBUG ... o.s.web.cors.DefaultCorsProcessor : Skip CORS processing: request is from same origin
通過Nginx訪問的日志里有這么一條：
復制代碼代碼如下:
DEBUG ... o.s.w.s.s.s.OriginHandshakeInterceptor : Handshake request rejected, Origin header value https://some-host.com not allowed
然后Google查詢相關解決辦法，找到github上的這個 issue ，所以只需要修改Nginx的配置，添加 proxy_set_header Origin ""; 就行了：
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http {
// ssl 相關配置 ...
map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}
server {
listen 8020;
location /ws {
proxy_pass http://some-ip:8080;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header Origin "";
}
}
}
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