使用Nginx的NHPM模块和jQuery进行的Comet测试

原文在这里：http://blog.jamieisaacs.com/2010/08/27/comet-with-nginx-and-jquery/ 

一直很想了解Comet的实现，正好看见了上面的这个文章，就装了个CentOS做了一下实验，过程如下： 

1、下载软件和安装 引用wget http://pushmodule.slact.net/downloads/nginx_http_push_module-0.692.tar.gz tar -xvzf nginx_http_push_module-0.692.tar.gz wget http://nginx.org/download/nginx-0.8.52.tar.gz tar -xvzf nginx-0.8.52.tar.gz ./configure --prefix=/usr/local/nginx --add-module=/root/nginx_http_push_module-0.692 make sudo make install configure过程中会提示哪些包没有，我的就是pcre-devel包没有，直接使用光盘rpm 安装上就可以了 

2、配置文件，修改nginx的配置文件nginx.conf，并启动nginx 引用#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 81; server_name localhost; root /var/www/localhost; location /cheetah { push_channel_group pushmodule_cheetah; location /cheetah/pub { set $push_channel_id cheetah; push_publisher; push_message_timeout 5s; # Give the clients time push_message_buffer_length 10; # to catch up } location /cheetah/sub { set $push_channel_id cheetah; push_subscriber; send_timeout 3600; } } } } 启动nginx 引用/usr/local/nginx/sbin/nginx 

3、编辑html测试文件，send.html用来发送信息，listen.html则是接受信息，当然保证jquery在相应的目录中。 send.html

大功告成，只要在send.html里面输入内容并发送，listen.html就会接收到信息