WARN run, com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1de6191 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!WARN run, com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1de6191…

这个Bug是因为在取出ResultSet对象,对其进行操作时,没有采用.next()方法将ResultSet对象的光标移至指定行,不管Statement对象执行SQL语句是否十分确定能搜出记录,也不可以在没有ResultSet的next()方法之前直接对ResultSet对象进行取值…

今天在使用mysql数据库查找数据的时候报错,错误信息如下: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'dd' in 'where clause' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newI…

严重: Servlet.service() for servlet jsp threw exceptioncom.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column '??????' in 'field list'    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)    at sun.reflect.Nati…

Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(3), primary key (ID_))…

这两天项目一直在报这个错误消息: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: SELECT command denied to user 'xxxxx'@'xxx.xxx.xxx.xxx' for table 'xxxxxx' at sun.reflect.GeneratedConstructorAccessor54.newInstance(Unknown Source) at sun.reflect.Delegating…

com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'receiverTel='123131' payment=0,time ='2015-04-10 10:14', trade…

编写第一个Hibernate程序的时候,就发现出现了错误 Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not insert: [zhongfucheng.domain.User] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92) at org.hibernate.ex…

1 错误描写叙述 at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandler…

1.错误描述 INFO:2015-05-01 14:20:44[main] - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> nu…