系统启动，一段时间不操作，然后在来操作时，报错如下： Caused by: java.sql.SQLException: Couldn't perform the operation getAutoCommit: You can't perform any operations ...

错误描述：java.sql.SQLException: Couldn't perform the operation setAutoCommit: You can't perform any operations on this connection. It has been ...

（1）Access denied for user 'root}'@'localhost' 原因：数据库连接配置的username值，多写一个"}" （2）Access denied for us ...

解决java.sql.SQLException: Access denied for user ‘root’@‘localhost’ (using password: YES） 我在一次javaWeb项目中遇到java.sql.SQLException: Access denied ...

Mybatis向MySQL插入数据时一直报错java.sql.SQLException: Field ‘id’ doesn’t have a default value 解决办法：在数据库的主键设置自增 ...

hibernate 插入数据错误：Caused by: java.sql.SQLException: Field 'id' doesn't have a default value 无法插入数据； 错误原因： id在数据库表中是作为主键，但是在插入的过程中，没有给予数值 ...

转自：https://www.cnblogs.com/TTTTT/p/6266022.html 1、错误描述 [plain] view pl ...

♦ 所存储的数据与数据库表的字段类型定义不匹配。♦ 解决办法： 　　检查dao层（数据访问层）的sql语句中赋值的参数是否与数据库中的字段个数、字段类型一致。 ...