提示 列名无效 检查 sql字段名跟类属性一致 请问是什么问题
java.sql.SQLException: 列名无效
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:199)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:263)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:271)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:445)
at oracle.jdbc.driver.OracleStatement.getColumnIndex(OracleStatement.java:3367)
at oracle.jdbc.driver.OracleResultSetImpl.findColumn(OracleResultSetImpl.java:2009)
at oracle.jdbc.driver.OracleResultSet.getInt(OracleResultSet.java:434)
at org.apache.tomcat.dbcp.dbcp2.DelegatingResultSet.getInt(DelegatingResultSet.java:282)
at org.apache.tomcat.dbcp.dbcp2.DelegatingResultSet.getInt(DelegatingResultSet.java:282)
at UserManagementSystem.service.UserService.login(UserService.java:140)
at UserManagementSystem.service.UserService.start(UserService.java:56)
at UserManagementSystem.service.UserService.main(UserService.java:369)