tomcat啓動mysql報錯：SQLNestedException: Cannot create PoolableConnectionFactory

tomcat啓動mysql報錯：SQLNestedException: Cannot create PoolableConnectionFactory


報錯錯信息爲：
......
2010-02-24 15:50:40,843 ERROR [org.hibernate.util.JDBCExceptionReporter] - <Cannot create PoolableConnectionFactory (null, message from server: "Host
'SVCTAG-0' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'")>
2010-02-24 15:50:40,843 WARN [org.hibernate.cfg.SettingsFactory] - <Could not obtain connection metadata>
org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (null, message from server: "[b]Host 'SVCTAG-0' is blocked because o
f many connection errors[/b]; unblock with 'mysqladmin flush-hosts'")
.......


經過網絡查詢，問題原因：數據庫中該主機的錯誤鏈接過多。mysql當你爲非法連接，不允許登陸並邊接。
解決方法：
更改mysql的配置文件中的允許錯誤連接參數——max_connect_errors=100。
具體爲：在MYSQL安裝目錄下，找到my.ini文件，在文件中找到錯誤連接配置並進行更改，如果沒有該參數設置，直接添加即可。


遺留問題：
未發現：該機器的錯誤連接是如何產生的，以及產生原因。