详解nginx rewrite和根据url参数location

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pcrewget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.34.tar.gztar -zxvf pcre-8.34.tar.gzcd pcre-8.34./configuremakemake install#安装nginxcd 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 /makemake 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 ^(.*)(?i)uplog.aspx(.*)$ $1log$2 break;  rewrite ^(.*)(?i)log.aspx(.*)$ $1log$2 break;  rewrite ^(.*)(?i)do.aspx(.*)$ $1do$2 break;      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;    }