Servlet层：DataServlet

package cn.csdn.customer.servlet;

import java.io.IOException;
import java.util.List;

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

import cn.csdn.customer.dao.CustomerDao;
import cn.csdn.customer.dao.CustomerDaoImpl;
import cn.csdn.customer.domain.Customer;

public class DataServlet extends HttpServlet {

 private static final long serialVersionUID = 1L;
 
 private CustomerDao customerDao = new CustomerDaoImpl();
 final static int count = 10;

 public void doGet(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  this.doPost(request, response);
 }

 
 public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  
   /* 获取要显示当前页参数 */
   int pages=Integer.parseInt(request.getParameter("pages"));
   /* 查寻数据的起始点 */
   int start =(pages-1)* count;
   /* 查询要显示的数据 */
   List<Customer> entities = customerDao.findAll(start,count);
   /* 查询数据的条数 */
   int sum=customerDao.getCount();
   /* 查询数据的条数 */
   int sumpages=(sum/count==0?sum/count:sum/count+1);
   request.setAttribute("pages",pages);
   request.setAttribute("entities", entities);