Error: Access denied for user 'username'@'localhost' (using password: NO)

 安装DZ时提示：
Discuz! info: Can not connect to MySQL server

Time: 2009-11-26 7:45am
Script:

Error: Access denied for user 'username'@'localhost' (using password: NO)
Errno.: 1045
 

解决办法：将DZ安装程序下的"upload"目录加上user的写入权限即可，当然前提是数据库的用户名和密码是正确的