错误如下：

严重: Prototype
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC][SQLServer]用户 'sa' 登录失败。
    at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
    at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
    at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processErrorToken(Unknown Source)
    at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReplyToken(Unknown Source)
    at com.microsoft.jdbc.sqlserver.tds.TDSLoginRequest.processReplyToken(Unknown Source)
    at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReply(Unknown Source)
    at com.microsoft.jdbc.sqlserver.SQLServerImplConnection.open(Unknown Source)
    at com.microsoft.jdbc.base.BaseConnection.getNewImplConnection(Unknown Source)
    at com.microsoft.jdbc.base.BaseConnection.open(Unknown Source)
    at com.microsoft.jdbc.base.BaseDriver.connect(Unknown Source)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:154)
    at org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(DefaultConnectionBuilder.java:39)
    at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:159)
    at org.logicalcobwebs.proxool.Prototyper.sweep(Prototyper.java:102)
    at org.logicalcobwebs.proxool.PrototyperThread.run(PrototyperThread.java:44)
请高手指教啦,多谢！