我正在尝试使用Rails 5 ActionCable构build一个消息应用程序，但是在JS控制台中出现了上述错误。
ws://localhost:3002/cable' failed: Error during WebSocket handshake: Unexpected response code: 404
我正在使用Redis和Pumagem。
我有一个运行7937:M 24 Jul 18:20:53.379 * The server is now ready to accept connections on port 6379的Redis服务器7937:M 24 Jul 18:20:53.379 * The server is now ready to accept connections on port 6379
我用Puma启动Rails服务器： rails s Puma -p 3002 （甚至需要？）
config/cable.yml看起来像这样…
development: adapter: redis url: redis://localhost:6379 test: adapter: async production: adapter: redis url: redis://localhost:6379/1
当我inputrails c并执行广播时：
2.2.4 :003 > ActionCable.server.broadcast("messages:1", text: "test") [ActionCable] Broadcasting to messages:1: {:text=>"test"} => 0
…你可以看到它返回0，所以它失败。 控制台错误消息看起来像…
WebSocket connection to 'ws://localhost:3002/cable' failed: WebSocket is closed before the connection is established.
谈到NGINX，我是一个完整的初学者。 这是NGINX的问题吗？ 如果是这样，我该如何解决呢？ 我要在/usr/local/etc/nginx/重新configuration我的nginx.conf文件吗？ 目前看起来像这样…
#user nobody; worker_processes 1; #error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info; #pid logs/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; #log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"'; #access_log logs/access.log main; sendfile on; #tcp_nopush on; #keepalive_timeout 0; keepalive_timeout 65; #gzip on; server { listen 8080; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; location / { root html; index index.html index.htm; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443 ssl; # server_name localhost; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } #} include servers/*; }
解
确保你有
<%= action_cable_meta_tag %>
也，
在config/environments/development.rb里config.action_cable.url = "ws://localhost:3000/cable"
把这个放在你的环境配置文件里
config.action_cable.allowed_request_origins = [/http:\/\/*/, /https:\/\/*/]