连不上SQL Server数据库,不明白啊

azan 03-08-07

我的日志:
Starting ConnectionPool:
dbDriver = com.microsoft.jdbc.sqlserver.SQLServerDriver
dbServer = jdbc.microsoft:sqlserver://localhost:1433;DatabaseName=jive
dbLogin = sa
log file = D:\JAVA2K3\jakarta-tomcat-4.1.27\webapps\jive\WEB-INF\jiveHome\logs\DefaultConnectionProvider.log
minconnections = 20
maxconnections = 10
Total refresh interval = 0.5 days
-----------------------------------------
--->Attempt (1 of 5) failed to create new connections set at startup:
java.sql.SQLException: No suitable driver
Will try again in 10 seconds...
--->Attempt (2 of 5) failed to create new connections set at startup:
java.sql.SQLException: No suitable driver
Will try again in 10 seconds...
--->Attempt (3 of 5) failed to create new connections set at startup:
java.sql.SQLException: No suitable driver
Will try again in 10 seconds...
--->Attempt (4 of 5) failed to create new connections set at startup:
java.sql.SQLException: No suitable driver
Will try again in 10 seconds...

All attempts at connecting to Database exhausted

老是连不上,怎么回事啊!