Three ways to achieve pagination

Three ways to achieve pagination
(1) Every time you fetch all the data from the query results, and then display the specified records according to the page
(2) Based on the page to fetch only one page of data, and then display this page, here to construct the SQL statement
(3) Take a certain number of pages of data, is the first two kinds of compromise


To implement the paging process:
1. Create a class to encapsulate the paging-related properties and operations
2. Add paging navigation bar functionality from the page
3. Realize paging query function, from page request->servlet->dao implementation

Three ways to achieve pagination