详解nginx rewrite和根据url参数location
(编辑：jimmy 日期: 2024/9/21 浏览：3 次 )
最近项目中涉及到旧老项目迁移，需要在nginx上做些配置，所以简单学习了下，好记性不如烂笔头，先记下来。
rewrite
首先查看下nginx是否支持rewrite：
./nginx -V
不支持说明安装nginx时候缺少pcre,需要重新安装nginx：
#安装pcre wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.34.tar.gz tar -zxvf pcre-8.34.tar.gz cd pcre-8.34 ./configure make make install #安装nginx cd nginx-1.0.12 ./configure --conf-path=/usr/local/nginx/conf/nginx.conf --pid-path=/usr/local/nginx/nginx.pid --with-http_ssl_module --with-pcre=/usr/local/src/pcre-8.34 make make install #启动nginx ./nginx #重启nginx ./nginx –s reload
示例：
比如现有如下的nginx配置：
worker_processes 24;
#worker_cpu_affinity 0000000000000001;
worker_rlimit_nofile 65535;
error_log logs/error.log crit;
pid logs/nginx.pid;
events {
use epoll;
worker_connections 2048000;
}
http {
include mime.types;
default_type application/octet-stream;
charset utf-8;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 60;
client_max_body_size 10m;
client_body_buffer_size 128k;
upstream log {
server 192.168.80.147:8338;
}
server {
listen 6061;
server_name 192.168.71.51;
location / {
proxy_pass http://log;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header Remote_Addr $remote_addr;
proxy_set_header X-REAL-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
log_format log '$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.log log;
#设定查看Nginx状态的地址
location /NginxStatus {
#stub_status on;
access_log on;
auth_basic "NginxStatus";
#auth_basic_user_file conf/htpasswd;
}
}
}
现在需要作如下的重定向：
192.168.71.51/log.aspx –> 192.168.80.147:8338/log
192.168.71.51/do.aspx –> 192.168.80.147:8338/do
192.168.71.51/uplog.aspx –> 192.168.80.147:8338/log
可以如下配置：
server {
listen 6061;
server_name 192.168.71.51;
rewrite ^(.*)("http://192.168.71.51:6061/do1.aspx">http://192.168.71.51:6061/do1.aspx"htmlcode">
……
upstream other {
server 192.168.71.41:2210;
}
……
然后在location里增加如下的判断即可：
……
location / {
if ( $query_string ~* ^(.*)c=config\b|uplog\b(.*)$ ){
proxy_pass http://other;
}
……
关键是标红的行，$query_string表示url参数，后面是标准的正则匹配，需要的注意的是nginx中if有很多限制，语法很苛刻，具体参看上面的文档。
很简单却很实用的配置，希望能帮到正在找这方面信息的同学。
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