这是第一次使用CodeIngiter，我有url访问问题。我必须在url中包含index.php才能访问页面。
为了解决这个问题，我在here进行了引用。我遵循了所有步骤。
我已经在config.php更新为

$config['base_url'] = 'http://'.$_SERVER['SERVER_NAME'].'/Your Ci folder_name';
$config['index_page'] = '';
$config['uri_protocol'] = 'AUTO';

根目录下的.htaccess文件为

RewriteEngine On
RewriteCond $1 !^(index\.php | assets | images | js | css | uploads | favicon.png)
RewriteCond %(REQUEST_FILENAME) !-f
RewriteCond %(REQUEST_FILENAME) !-d
RewriteRule ^(.*)$ ./index.php/$1 [L]

ubuntu@ip-172-31-28-229:/var/www/html/CodeIgniter$ a2enmod rewrite
Module rewrite already enabled

我无法将/etc/apache 2/apache2.conf文件中的所有AllowOverride None更改为AllowOverride All.。如果我这样做，我甚至无法访问我的根URL。我的/etc/apache 2/apache2.conf文件如下所示。

# Sets the default security model of the Apache2 HTTPD server. It does
# not allow access to the root filesystem outside of /usr/share and /var/www.
# The former is used by web applications packaged in Debian,
# the latter may be used for local directories served by the web server. If
# your system is serving content from a sub-directory in /srv you must allow
# access here, or in any related virtual host.
<Directory />
        Options FollowSymLinks
        AllowOverride None
        Require all denied
</Directory>

<Directory /usr/share>
        AllowOverride None
        Require all granted
</Directory>

<Directory /var/www/>
        Options Indexes FollowSymLinks
        AllowOverride None
        Require all granted
</Directory>

#<Directory /srv/>
#       Options Indexes FollowSymLinks
#       AllowOverride None
#       Require all granted
#</Directory>



# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives.  See also the AllowOverride
# directive.
#
AccessFileName .htaccess

我重新启动了apache 2服务器。
但是如果我的url中没有index.php，我仍然无法访问。