我是xp系统,SQL打了sp4补丁,驱动程序也打了补丁,运行测试代码后连接成功,但是查询数据时提示:[Microsoft][SQL Server 2000 Drive for JDBC]Can’t start a cloned connection while in manual transaction mode.
解决方案:(1)
你在尝试打开一个克隆连接,有两种解决办法: 每个数据库的连接在执行完毕后,关闭,第二,在连接时,判断是否已经有连接存在,有则使用现成的连接。 数据库连接可以设置成一个常量,不需要到处定义。便于维护。
解决方案:(2)
你在DatabaseURL字符串中加入SelectMethod=Cursor;如下
jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName=Partner;SelectMethod=Cursor; ss
very good
是因为连接完成后,加了一个设置语句,呜呜
if (conn.getAutoCommit())
conn.setAutoCommit(false);
这两句不要写就ok了,现在自己帖出答案来给万一以后碰到跟我一样问题的人看看
昨天调试程序时出现这个问题:Can't start a cloned connection while in manual transaction mode
原因一般是当你在一个SQL SERVER的JDBC连接上执行多个STATEMENTS的操作,或者是手动事务状态(AutoCommit=false) 并且使用 direct (SelectMethod=direct) 模式.
Direct 模式是默认的模式.
解决办法
当你使用手动事务模式时,必须把SelectMethod 属性的值设置为 Cursor, 或者是确保在你的连接只有一个STATEMENT操作。
修改url
加入SelectMethod=cursor即可
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