websocket是html5中用來實現長連接的一個協議。
在同時使用nginx反向代理和websocket的時候,因爲websocket的通信管道必須都要一直處於開啓狀態。
所以,有必要在nginx的配置文件中加入配置。
關鍵的地方筆者用紅色標記出來:
#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;
upstream netitcast.com { #服務器集羣名字
server 127.0.0.1:8080;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
proxy_pass http://netitcast.com;
proxy_redirect default;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# 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;
# }
#}
}
加上如上的兩行紅色的配置就可以放nginx支持websocket了,但是nginx的版本需在1.3以上。
但是吧項目跑起來的時候,發現還是報錯了,
a:155 WebSocket connection to 'ws://localhost/bannerWs?id=1' failed: Error during WebSocket handshake: Unexpected response code: 403
截圖如下:
經過一番搜索,原來是因爲筆者使用了Spring-websocket。
Spring 默認的情況下會設置一個webSocket客戶端的鏈接域的檢查。
org.springframework.web.socket.server.support.OriginHandshakeInterceptor
這個類來檢查客戶端連接域是否和服務器的域是否一致,不一致,服務端就返回了403這個響應碼。
我們只需要在註冊Spring webSocketHandler 的時候,加入如下代碼就可以了。
關鍵的地方,筆者用紅色標出。
webSocketHandlerRegistry.addHandler(bannerWebSocketHandler, "/bannerWs").addInterceptors(new BannerWebSocketHandShaker()).setAllowedOrigins("http://localhost");
說明允許,的域是http://localhost ,這裏說一下筆者自己跑的Tomcat的域是http://localhost:8080
處於不同一個域,所以,之前報http響應嗎403,說是連接失敗。