服务器未知运行时异常: 
### Error querying database.  Cause: java.sql.SQLIntegrityConstraintViolationException: Column 'dept_id' in where clause is ambiguous
### The error may exist in file [D:\cz\203\徐州计量\code\casic-metering\casic-metering-dao\target\classes\mapper\sys\MessagePushMapper.xml]
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: select su.id         from sys_user su         join meter_staff   ms  ON su.name=ms.name         where dept_id = ?
### Cause: java.sql.SQLIntegrityConstraintViolationException: Column 'dept_id' in where clause is ambiguous
; Column 'dept_id' in where clause is ambiguous; nested exception is java.sql.SQLIntegrityConstraintViolationException: Column 'dept_id' in where clause is ambiguous