Introduction - If you have any usage issues, please Google them yourself
Paging: when the amount of data is large, the user has to drag the page to browse more data, and the page is verbose
A) determine the amount of data displayed per page (e.g., 10 pageSize=10] per page)
(b) determine the total number of pages needed for paging display [query the total number of all the tables, and then count the number of pages per page]
C) write SQL query statements, to achieve data queries (pageSize display data per page)
D) paging display settings in the JSP page