How nginx rewrite implements URL jump

PHPz
Release: 2023-06-03 11:55:28
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url跳转

这里说的url跳转就是用户在访问一个url时将其跳转到另一个url上。

常见的应用场景是让多个域名跳转到同一个url上,(例如让旧域名跳转到新域名上)

将静态文件请求跳转到cdn上等

根据用户设备跳转到不同站点(pc版,wap版)等。

url跳转可以通过js在页面上设置的window.location实现

也可以通过php设置header来实现

当然也可以用nginx 的 rewrite功能实现

nginx rewrite模块

rewrite 是 nginx的静态重写模块

基本用法是 rewrite patten replace flag

patten是正则表达式,与patten匹配的url会被改写为replace,flag可选

例如将旧域名跳转到新域名上

server
{
 listen 80;
 server_name www.old.com;
 rewrite ".*" http://www.new.com;
}
Copy after login

跳转到新域名上时保留路径

server
{
 listen 80;
 server_name www.old.com;
 rewrite "^/(.*)$" http://www.new.com/$1;
}
rewrite与location配合实现图片文件跳转到cdn
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ {
 expires 30d;
 rewrite "^/uploadfile\/(.*)$" http://static.xxx.com/uploadfile/$1;
}
Copy after login

rewrite 后面可以加flag,flag标记有:

last 相当于apache里的[l]标记,表示完成rewrite

break 终止匹配, 不再匹配后面的规则

redirect 返回302临时重定向 地址栏会显示跳转后的地址

permanent 返回301永久重定向 地址栏会显示跳转后的地址

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source:yisu.com
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