The noka tag is a set of JSP tags that integrates data processing and display processing on JSP and supports multiple databases. Among them are: Coding interceptor tool class data table (DBTable) label time date (DateOrTime) label combination selection box (selectDouble) label drop-down selection box (select) label tree menu (TreeDB) label <without Checkbox box> Tree menu (TreeMenuCheckbox) label tab (tabs/Divs) label data query entry (dataselectinput) label to QQ menu label drop-down selection box tree menu year selection label (YearSelect) Date and time formatting tag (FormatData) String format tag (StringLenFormat) File service tag (fileserverpath)