?? page.java
字號:
package web.breakpage;
public class Page
{
private int totalRows; //總行數
private int pageSize; //每頁顯示的行數
private int currentPage; //當前頁號
private int totalPages; //總頁數
private int startRow; //當前頁在數據庫中的起始行
public Page(int _totalRows,int _pageSize)
{
totalRows = _totalRows;
totalPages = totalRows / _pageSize;
int mod = totalRows % _pageSize;
if (mod > 0)
{
totalPages++;
}
pageSize = _pageSize;
currentPage = 1;
startRow = 0;
}
public int getStartRow()
{
return startRow;
}
public int getTotalPages()
{
return totalPages;
}
public int getCurrentPage()
{
return currentPage;
}
public int getPageSize()
{
return pageSize;
}
public void setTotalRows(int totalRows)
{
this.totalRows = totalRows;
}
public void setStartRow(int startRow)
{
this.startRow = startRow;
}
public void setTotalPages(int totalPages)
{
this.totalPages = totalPages;
}
public void setCurrentPage(int currentPage)
{
this.currentPage = currentPage;
}
public void setPageSize(int pageSize)
{
this.pageSize = pageSize;
}
public int getTotalRows()
{
return totalRows;
}
public void first()
{
currentPage = 1;
startRow = 0;
}
public void previous()
{
if (currentPage == 1)
{
return;
}
currentPage--;
startRow = (currentPage - 1) * pageSize;
}
public void next()
{
if (currentPage < totalPages)
{
currentPage++;
}
startRow = (currentPage - 1) * pageSize;
}
public void last()
{
currentPage = totalPages;
startRow = (currentPage - 1) * pageSize;
}
public void select(int _currentPage)
{
currentPage = _currentPage;
startRow = (currentPage-1) * pageSize;
}
public void refresh(int _currentPage)
{
currentPage = _currentPage;
if (currentPage > totalPages)
{
last();
}
}
}
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