Topic: selectByPrimary()方法问题。 |
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1.selectByPrimary()方法问题。 | Copy to clipboard |
Posted by: valen Posted on: 2004-09-20 16:21 我在使用了 con.setAutoCommit(false);之后,第一次执行没有问题,第二次执行含有查询语句的方法时候又 出现下面的异常,请问是什么问题?接着第三次执行又正常,请问是什么原因呢,我在jbuilder9中开发,查找 方法如下: private boolean selectByPrimarykey(String primaryKey) throws Exception{ String str="select au_id from authors where au_id='"+primaryKey+"'"; con.setAutoCommit(false); boolean result = false; System.out.println("调用selectByPrimaryKey()"); try { Statement pre=con.createStatement(); ResultSet rs = pre.executeQuery(str); result = rs.next(); System.out.println("selectByPrimaryKey()-result="+result); rs.close(); pre.close(); } catch (SQLException ex){System.out.println("selectByPrimaryKey()出现异常!"+ex); } con.setAutoCommit(defaultCommit); //con.close(); return result; } java.sql.SQLException: The transaction is no longer active - status: 'Committed'. No further JDBC access is allowed within this transaction. (缩略图,点击图片链接看原图) |
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