/localhost/可以看到it works.
在user文件夹下面配置了，

   1 <Directory "/Users/bjhl/Sites/">
  2     Options FollowSymLinks Indexes MultiViews
  3     AllowOverride All
  4     Order allow,deny
  5     Allow from all
  6 </Directory>

httpd.conf里面的deny都改掉了
但是/localhost/~用户名/显示的是：
Not Found
The requested URL /~bjhl was not found on this server.

建议用虚拟主机，把httpd.conf里面的

Virtual hosts

Include /private/etc/apache2/extra/httpd-vhosts.conf（这句注释去掉）

建议使用virtual host
参考：
apache virtual host