分页编程

//定义分页类实例

public class Page{

private int currentPage; //当前页
private int pageSize = 50;//每页大小
private int recordTotal;//总记录数
private int pageCount;//总页数
private int startIndex;//起始位置

public int getCurrentPage() {
return currentPage;
}

private int increaseCurrentPage(){
return currentPage++;
}

public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}

public int getPageSize() {
return pageSize;
}

public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}

public int getTotal() {
return recordTotal;
}

public void setTotal(int total) {
this.recordTotal = total;
}

public int getPageCount() {
pageCount = this.recordTotal % pageSize == 0 ? recordTotal/pageSize : recordTotal/pageSize + 1;
return pageCount;
}

public void setPageCount(int pageCount) {
this.pageCount = pageCount;
}

public int getStartIndex() {
startIndex = (this.currentPage-1)*pageSize;
return startIndex;
}

public void setStartIndex(int startIndex) {
this.startIndex = startIndex;
}

public boolean hasNextPage(){
increaseCurrentPage();
return this.currentPage <= getPageCount();
}

public Page() {
super();
}

public Page(int recordTotal) {
super();
this.recordTotal = recordTotal;
}

public static void main(String[] args) {


}
}



//使用例子
Page page = this.countTicketQueueUnfinishForQuota();
while(page.hasNextPage()){
     
}



private Page countTicketQueueUnfinishForQuota(){
int recordTotal = this.dao.queryForInt("charge.preProcessing.countTicketQueueUnfinishForQuota", new HashMap<String,Object>());
return new Page(recordTotal);
}