连接sql出现异常？？？？连接不上

ammdy

ava.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.
        at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
        at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
        at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
        at com.microsoft.jdbc.sqlserver.tds.TDSConnection.<init>(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(Unknown Source)
        at java.sql.DriverManager.getConnection(Unknown Source)
不知道这是什么意思望高手解答
应该如何处理，下面是连接程序，我在connection处设了断点，每次到那里就跳到了exception
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
                Connection con=DriverManager.getConnection("jdbc:microsoft:sqlserver://127.0.0.1:1433;databasename=school","sa","");
                stmt=con.createStatement();

esprit

SQLSserver 打了补丁了吗？

ammdy

问题解决
没打补丁
谢谢