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…

1.错误描述 2014-7-12 21:06:05 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource getPoolManager 信息: Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000,…

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'test' 报错原因是:MySQL数据库没有 创建 test 数据库 解决办法:在MySQL中创建test:create database test…

1.错误描写叙述 2014-7-12 21:06:05 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource getPoolManager 信息: Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 100…

一直很奇怪,为什么报错,进入mysql命令行,show databases:发现多谢了一个空格,如上图.…

问题介绍:   com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown error 1146 MySql语法错误, 但是错误是未知的, 执行所有的增删改查操作都会报这个错误! 原因分析: 原来是在mybatis配置数据库的db.proerties中,忘记修改数据库名字了 解决办法: 把jdbc.url=jdbc:mysql://localhost:3306/xiaomi?characterEncoding=utf-8&…

MyBatis中,出现Unknown column的提示是mapper.xml中的数据库字段写错了. 错误示例: XxMapper.xml中 <sql id="KnowlegeSectionAndPart_Column_List"> s.knowledge_section_id, s.create_time, s.update_time, s.section_name, s.repository_id, s.bool_close, p.knowlege_part_id, p…

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…

1.错误原因 [ERROR:]2015-04-18 13:20:31,883 [异常拦截] com.skycloud.oa.exception.ExceptionHandler org.hibernate.exception.SQLGrammarException: error executing work at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.j…