数据库连接出错的问题困恼了我好几天了，原因是连接数据库时必须通过C:\Windows\temp目录作缓存进行数据交换，所以必须给IIS的匿名用户“IUSR_计算机名”访问此目录的权限。以下在NTFS格式分区给文件夹设置权限的方法请仔细看，如果你的网站目录放在NTFS格式分区的话，也要用同样方法赋予权限网站才能访问。-The database connection error distress days, because when you connect to the database through the C: the \ Windows \ temp directory for the cache for data exchange, it is necessary to the IIS anonymous user IUSR_ computer name to access this directory permissions. The following folder to the file on NTFS-formatted partition set permissions carefully to see if your site directory on an NTFS formatted partition, then also given permission to site to access the same way.