如何通过.htaccess将所有请求重定向到www目录？

我正在尝试创建一个.htaccess，它将为子域“测试”重定向所有请求，如下所示：

http://test.mydomain.com/something/something2             (1)

到

所以在浏览器的地址栏中仍然是地址（1）

我有Apache2.0

我试着写了两个小时，但仍然找不到正确的方法

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谢谢

你会想要这样的东西：

RewriteEngine On

# Only redirect if we're on the subdomain and haven't redirected
# (internally) to /www/ yet
RewriteCond %{HTTP_HOST}    ^test
RewriteCond %{REQUEST_URI} !^/www/
RewriteRule ^.*$ /www/$0 [L]

# Let's also prevent them from being able to go to our /www path manually
RewriteCond %{THE_REQUEST}  ^(POST|GET)\s/www
RewriteRule ^www/?(.*)$ http://test.mydomain.com/$1 [R,L]

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将apache虚拟主机中的文档根指向www是一个选项吗？不幸的是，我没有这个选项。

RewriteEngine On

# Only redirect if we're on the subdomain and haven't redirected
# (internally) to /www/ yet
RewriteCond %{HTTP_HOST}    ^test
RewriteCond %{REQUEST_URI} !^/www/
RewriteRule ^.*$ /www/$0 [L]

# Let's also prevent them from being able to go to our /www path manually
RewriteCond %{THE_REQUEST}  ^(POST|GET)\s/www
RewriteRule ^www/?(.*)$ http://test.mydomain.com/$1 [R,L]