Exception in thread "main" java.sql.SQLException

源自：2-2 JDBC实战---打通数据库

Exception in thread "main" java.sql.SQLException: Column 'user_name,28' not found.

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)

at com.mysql.jdbc.ResultSetImpl.findColumn(ResultSetImpl.java:1136)

at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5531)

at com.imooc.db.DBUtil.main(DBUtil.java:24)

代码跟老师的一样

提问者：慕粉0947393229 2018-05-04 23:19