ResultSetMetaData类的getColumnName和getColumnLabel的不同
如果你进行多表链接查询的时候并且重新定义了列明比如说下一条的sql语句:"SELECTd.namedoctorName,a.visitTimevisitTime,dep.namedepartmentName,a.timetime,a.symptomsymptom,arr.idNumarrangeIdNum,p.namepatientName"+"FROMdoctord,departmentdep,