paginationcs.java

这是本人以前在学校时

package com.funddeal.base.pagination;

import java.util.ArrayList;
import java.util.Collection;

import com.funddeal.base.PublicFunction;
import com.funddeal.base.interfaces.PaginationInterface;
import com.funddeal.model.dao.config_bring_number.ConfigBringNumberDAO;
import com.funddeal.model.pojo.custom_entity.PaginactionParamEntity;

public class PaginationCs implements PaginationInterface{
	public static String errorMsg;
	/**
	 * 得到配置记录数据集(带分页)
	 * @param pageIndex：当前页
	 * @param pageSize：每页的记录条数
	 * @return PageParaPOJO：分页对象实体
	 * @return pojoName: 分页实体名
	 */
	public PageParaPOJO searchConfigBringNumJB(int pageIndex,int pageSize ,String pojoName){
		errorMsg="";
		PageParaPOJO pp=new PageParaPOJO();
		PublicFunction pf=new PublicFunction();
		//总页数
		int resultCount;
		//得到总记录数
		int resultInt = pf.resultNum(pojoName);
		//计算出总页数
		int tempInt=pageSize;
		if(resultInt%tempInt==0)
			resultCount=resultInt/tempInt;
		else
			resultCount=resultInt/tempInt+1;
		//如果当前页大于最大页，当前页为最后一页
		if(pageIndex<1)
			pageIndex=1;
		if(resultCount==0)
			resultCount=1;
		if(pageIndex>resultCount)
			pageIndex=resultCount;
		//实例化分页参数实体并赋值
		PaginactionParamEntity ppe=new PaginactionParamEntity();
		String hql="from  " + pojoName;
		ppe.setHql(hql);
		ppe.setPageIndex(pageIndex);
		ppe.setPageSize(pageSize);
		//实例化数据访问对象
		ConfigBringNumberDAO cbnDAO=new ConfigBringNumberDAO();
		//取得数据集
		Collection col=cbnDAO.search(ppe);
		if(col==null){
			errorMsg=ConfigBringNumberDAO.errorMsg;
			pp=null;
			return pp;
		}
		try{
		pp.setPageArray((ArrayList) col);
		pp.setPageCount(resultCount);
		pp.setPageIndex(pageIndex);
		pp.setPageSize(resultInt);
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return pp;
	}
}