pagehandle.java

模拟网上购物系统

package pageHandle;

import javax.servlet.http.HttpServletRequest;

import dao.adminDAO;

import page.page;

public class pageHandle {
	
	private int totalRows = 0;
	
	public page pagehand(HttpServletRequest request,String sql)
	{
		totalRows = new adminDAO().count(sql);
		page p = new page(totalRows);
		
		String myPage = request.getParameter("current");
		String method = request.getParameter("method");
		if(myPage != null)
		{
			//调用page对象的方法,刷新其他相关的属性信息
			 if(method.equals("privous"))
			 {
				 p.Privous(Integer.parseInt(myPage));
			 }
			 else if(method.equals("next"))
			 {
				 p.Next(Integer.parseInt(myPage));
			 }
			 else if(method.equals("first"))
			 {
				 p.First();
			 }
			 else if(method.equals("last"))
			 {
				 p.Last();
			 }
			 else if(method.equals("select"))
			 {
				 p.Select(Integer.parseInt(myPage));
			 }
			 else
			 {
				 p.First();
			 }
		}
		//返回处理的结果
		return p;
	}

}