[转]实体类与数据库字段不匹配问题,java.sql.SQLSyntaxErrorException: Unknown column 'xxx' in 'field list'

?

1 2 3 4 5 6 7 8 9 10 11 12 13

控制台报错   ### Error querying database.  Cause: java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list' ### The error may exist in panfeng/mapper/StudentMapper.java (best guess) ### The error may involve panfeng.mapper.StudentMapper.selectByPrimaryKey-Inline ### The error occurred while setting parameters ### SQL: SELECT id,user_name,password,email  FROM student  WHERE  id = ? ### Cause: java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list' ; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list'] with root cause   java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list'     at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120) ~[mysql-connector-java-8.0.16.jar:8.0.16]     at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.16.jar:8.0.16]

　　

?

1 2 3 4 5 6 7 8

浏览器报错   Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback.   Tue Aug 06 13:10:39 CST 2019 There was an unexpected error (type=Internal Server Error, status=500). ### Error querying database. Cause: java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list' ### The error may exist in panfeng/mapper/StudentMapper.java (best guess) ### The error may involve panfeng.mapper.StudentMapper.selectByPrimaryKey-Inline ### The error occurred while setting parameters ### SQL: SELECT id,user_name,password,email FROM student WHERE id = ? ### Cause: java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list' ; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: Unknown column 'user_name' in 'field list'

　　

出错的时候

 

 

修改之后,修改之后重启,就可以正常访问了!!!

 

 

原文链接：实体类与数据库字段不匹配问题,java.sql.SQLSyntaxErrorException: Unknown column 'xxx' in 'field list'