仅在某些字段更改时才调用insertHisotry（）

Question

我的程序中有update（）api，如果我更改了某些内容，则在其中进行了insertHistory（）api的调用。 我想让我的程序像任何字段都发生更改一样，然后仅insertHistory（）进行调用，否则不进行。

我的目的是当用户在编辑页面上不执行任何操作并单击“保存”按钮时，更新方法将不运行。

我对update（）的原始编程是这样的：

public static boolean updateDetails(StudentSVO svo, Connection con, AppLogger logger) {

        boolean returnValue = true;

        PreparedStatement ps = null;
        StringBuffer updateQuery = new StringBuffer();

        updateQuery.append("\nUPDATE STUDENT_DETAIL SET NAME = ? ,ROLL_NO = ? ,LAST_UPDATED_BY = ? ,LAST_UPDATED_ON = ? WHERE ID = ? ");
        updateQuery.append("\n ");

        try {

            VocMasterSVO currentSVO = getById(svo.getId(), con, logger);
            if(currentSVO!=null){
                insertHistory(currentSVO, con, logger);
            }

            ps = con.prepareStatement(updateQuery.toString());

            ps.setInt(DBManager.RS_INDEX_1, svo.getName());
            ps.setInt(DBManager.RS_INDEX_2, svo.getRollNo());
            ps.setInt(DBManager.RS_INDEX_3, svo.getLastUpdatedBy());
            ps.setLong(DBManager.RS_INDEX_4, svo.getLastUpdatedOn());
            ps.setInt(DBManager.RS_INDEX_5, svo.getId());
            ps.executeUpdate();

        } catch (SQLException ex) {
            logger.error("Exception occured in updateDetails method:" + ex, ex);
            return false;
        } catch (Exception ex) {
            logger.error("Exception occured in updateDetails method:" + ex, ex);
            return false;
        } finally {
            try {
                if (ps != null) {
                    ps.close();
                }
            } catch (Exception ex) {}
        }
        return returnValue;
    }

我尝试过：

public static boolean updateDetails(StudentSVO svo, Connection con, AppLogger logger) {

        boolean returnValue = true;

        PreparedStatement ps = null;
        StringBuffer updateQuery = new StringBuffer();

        updateQuery.append("\nUPDATE STUDENT_DETAIL SET NAME = ? ,ROLL_NO = ? ,LAST_UPDATED_BY = ? ,LAST_UPDATED_ON = ? WHERE ID = ? ");
        updateQuery.append("\n ");

        try {

            StudentSVO currentSVO = getById(svo.getId(), con, logger);
            if(currentSVO!=null){

                if(!currentSVO.getName().equalsIgnoreCase(svo.getName()) || currentSVO.getRollNo()!=svo.getRollNo() ) {

                    ps = con.prepareStatement(updateResolutionDetailsQuery.toString());

                    ps.setInt(DBManager.RS_INDEX_1, svo.getName());
                    ps.setInt(DBManager.RS_INDEX_2, svo.getRollNo());
                    ps.setInt(DBManager.RS_INDEX_3, svo.getLastUpdatedBy());
                    ps.setLong(DBManager.RS_INDEX_4, svo.getLastUpdatedOn());
                    ps.setInt(DBManager.RS_INDEX_5, svo.getId());
                    ps.executeUpdate();

                    insertHistory(currentSVO, con, logger);
                }

            } catch (SQLException ex) {
            logger.error("Exception occured in updateDetails method:" + ex, ex);
            return false;
        } catch (Exception ex) {
            logger.error("Exception occured in updateDetails method:" + ex, ex);
            return false;
        } finally {
            try {
                if (ps != null) {
                    ps.close();
                }
            } catch (Exception ex) {}
        }
        return returnValue;
    }

有什么建议吗？