stockshoppingselectall.java

是一个企业的进销存系统。账号问1001密码为123456

package com.jxc.StockShoppingServlet;

import java.io.IOException;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.jxc.dao.*;

import com.jxc.page.ListPage;

public class StockShoppingSelectAll extends HttpServlet {

	private static final long serialVersionUID = 1L;

	
	public void destroy() {
		super.destroy(); 
	}

	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		this.doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		 Connection conn=Conn.getConnection();
	     int pagenumber = 0;
			if ("".equals(request.getParameter("pagenumber"))
					|| null == request.getParameter("pagenumber")) {
				pagenumber = 1;
			} else {
				pagenumber = Integer.parseInt((String) request
						.getParameter("pagenumber"));
			}
	     ArrayList<?> list=new StockShoppingTreat().selectAll(conn);
	     if(list.size()==0){
	     HttpSession session=request.getSession();
	     session.setAttribute("list", list);
	     response.sendRedirect("../stockshopping/StockShoppingAll.jsp");
	     }else{
	    	 ListPage listpage = new ListPage(list, pagenumber,16);
				int lastpagenumber = listpage.getLastPageNumber();
				if (pagenumber >= lastpagenumber) {
					pagenumber = lastpagenumber;
				}
				List list1 = (List) listpage.getThisPageElements();
				HttpSession session=request.getSession();
				session.setAttribute("lastpagenumber", lastpagenumber);
				session.setAttribute("pagenumber", pagenumber);
				session.setAttribute("list", list1);
				 response.sendRedirect("../stockshopping/StockShoppingAll.jsp");
	    	 
	     }
	}
	public void init() throws ServletException {
	}

}