创建.htaccess文件：
AuthUserFile /home/<your_username>/webapps/<webapp_name>/.htpasswd
AuthName EnterPassword
AuthType Basic
require valid-user
# Hide files starting with a dot (.htaccess and .htpasswd in particular)
<Files .*>
order allow,deny
deny from all
</Files>
创建密码：
htpasswd -c .htpasswd username
