10.12-10.15 rewrite配置if,break和last的用法,rewrite规则,Nginx全局变量
Nginx的Rwrite配置
加粗 域名跳转(重定向)、URL重写（伪静态）、动静分离（跳转域名，并接入CDN实现加速）
依赖PCRE库
模块：ngx_http_rewrite_module
加粗 Rwrite相关指令
if (条件) { command } coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/if.md
break和last coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/break.md
开启rewrite日志记录：
1.在server加入 rewrite_log on;
2.在nginx.conf 配置error_log logs/nginx_error.log notice; notice会记录rewrite错误信息
配置：
vim nginx/conf/nginx.conf
error_log logs/nginx_error.log notice;
vim nginx/conf/vhost/1.com_default.conf
server{
listen 80;
server_name *.1.com 1.com;
index index.html 80.html;
root /data/t-nginx/1.com;
rewrite_log on;
rewrite /1.html /2.html ;
rewrite /2.html /3.html ;
}
# curl -x127.0.0.1:80 1.com/1.html
3333
3.当我们请求1.html时，最终访问到的是3.html，两条rewrite规则先后执行。
tail nginx/logs/nginx_error.log 2018/10/22 11:21:00 [notice] 20967#0: *1906 "/1.html" matches "/1.html", client: 127.0.0.1, server: *.1.com, request: "GET HTTP://1.com/1.html HTTP/1.1", host: "1.com" 2018/10/22 11:21:00 [notice] 20967#0: *1906 rewritten data: "/2.html", args: "", client: 127.0.0.1, server: *.1.com, request: "GET HTTP://1.com/1.html HTTP/1.1", host: "1.com" 2018/10/22 11:21:00 [notice] 20967#0: *1906 "/2.html" matches "/2.html", client: 127.0.0.1, server: *.1.com, request: "GET HTTP://1.com/1.html HTTP/1.1", host: "1.com" 2018/10/22 11:21:00 [notice] 20967#0: *1906 rewritten data: "/3.html", args: "", client: 127.0.0.1, server: *.1.com, request: "GET HTTP://1.com/1.html HTTP/1.1", host: "1.com"
日志解释：
以""为分界，左边规则，右边匹配
return 后面跟状态码、URL、text（支持变量）coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/return.md
反馈字符串可以这样写
return 200 "it's 200";
格式：return 状态码 "字符串";
rewrite规则 coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/rewrite_ruler.md
rewrite_log定义rewrite日志 rewrite_log on; 写到error_log notice级别
Rwrite相关全局变量
coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/variable.md
Rwrite实战
coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/example.md