場景：1臺nginx去代理4臺apache
需求：根據不同的請求uri 代理到不同的apache
nginx的配置文件爲：
upstream aa.com {
server 192.168.0.121;
server 192.168.0.122;
}
upstream bb.com {
server 192.168.0.123;
server 192.168.0.124;
}
server {
listen 80;
server_name www.abc.com;
location ~ aa.php
{
proxy_pass http://aa.com/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location ~ bb.php
{
proxy_pass http://bb.com/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}