1. Operation not allowed after ResultSet closed的解决方法 报错原因: Operation not allowed after ResultSet closed翻译后的意思是ResultSet关闭后不允许操作,也就是说在ResultSet的实例调用 ...
一个stmt多个rs进行操作.那么从stmt得到的rs ,必须马上操作此rs 后,才能去得到另外的rs ,再对rs 操作.不能互相交替使用,会引起rs已经关闭错误 Operation not allowed after ResultSet closed. 错误的代码如下: stmt conn.createStatement rs stmt.executeQuery select from t rs ...
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1. Operation not allowed after ResultSet closed的解决方法 报错原因: Operation not allowed after ResultSet closed翻译后的意思是ResultSet关闭后不允许操作,也就是说在ResultSet的实例调用 ...
问题 Mysql服务器默认的“wait_timeout”是8小时,也就是说一个connection空闲超过8个小时,Mysql将自动断开该connection。 可以用show global variables LIKE'wait_timeout';查看mysql的等待时间。 这就是问题 ...
异常信息 org.hibernate.exception.JDBCConnectionException: could not execute query at org.hibernate.e ...
错误sql Operation not allowed for reason code "1" on table "MARKET.PURE_USER".. SQLC //执行sql select * from PURE_USER 可能有一行或多行违反了对数据定义 ...
原因分析 查看了Mysql的文档,以及Connector/J的文档以及在线说明发现,出现这种异常的原因是: Mysql服务器默认的“wait_timeout”是8小时,也就是说一个connection空闲超过8个小时,Mysql将自动断开该connection。这就是问题的所在,在C3P0 ...
ERROR - No operations allowed after connection closed. 2011-12-07 11:36:09 - ERROR - query failed ...
异常信息(部分): 2014-11-26 12:01:47,815 [http-6888-6] WARN com.mchange.v2.c3p0.impl.NewPooledConnection ...
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed ...