Java Web page numbering pagination

The beginning of the show is 1,2,3,4,5 the second page is when I click 2,3 when the display or 1,2.3,4,5 Click 4 when the display is 2,3,4,5,65 when the 3,4,5,6,76 is 4,5,6,7,8

package com.kt.servlet_qt;import java.io.ioexception;import java.io.printwriter;import  java.util.arraylist;import java.util.list;import javax.servlet.servletexception;import  javax.servlet.http.cookie;import javax.servlet.http.httpservlet;import  javax.servlet.http.httpservletrequest;import javax.servlet.http.httpservletresponse;import  Com.kt.bean.easybuy_shangpin;import com.kt.dao.impl.easybuyimpl;public class ecommodityservlet  extends httpservlet {public void doget (httpservletrequest request,  Httpservletresponse response) Throws servletexception, ioexception {printwriter out  = response.getwriter (); Easybuyimpl e = new easybuyimpl ();//  shows how many data int pagesize = 8;//  Get total number of items int record = e.total ();//  calculates how many pages a product has int totalpage = record %  pagesize == 0 ?  (record / pagesize)  :  (record/ pagesize + 1);//  get how many pages string  Curpage = request.getparameter ("Curpage");//  current page int count = -1;if  (curpage  != null)  {count = integer.parseint (curpage);//  determine if the current page is less than 0if  ( Integer.parseint (curpage)  < 1)  {count = 1;}   Determine whether the current page exceeds the existing page if  (Integer.parseint (curpage)  >= totalpage)  {count =  Totalpage;}}  else {count = 1;}   Paging List<easybuy_shangpin> findall_shangpinfenye = e.findall_shangpinfenye ((count  - 1)  * pagesize, pagesize);//  Total pages request.getsession (). SetAttribute ("TotalPage",  totalpage);//  current page request.getsession (). SetAttribute ("Count",  count);//  Number of pages of data request.getsession (). SetAttribute ("Findall_shangpinfenye", findall_shangpinfenye); Request.getrequestdispatcher ("product-list.jsp"). Forward (reqUest,response); Out.flush (); Out.close ();}} 

<div class= "Pager" ><ul class= "Clearfix" ><li><a href= "Ecommodityservlet? Curpage=${count-1} "> Prev </a></li><c:choose><c:when test=" ${COUNT&LT;=3&NBSP;} "> <c:foreach begin= "0"  end= "4"  var= "V" ><c:if test= "${count==v+1}" ><li>< a href= "Ecommodityservlet?curpage=${count-1}" style= "color: red" >${v+1 }</a></li> </c:if><c:if test= "${count!=v+1}" ><li><a href= "ecommodityservlet?curpage=${v+1} ">${v+1}</a></li></c:if></c:foreach></c:when><c:when test=" ${count  < totalpage-3 } "><c:foreach begin=" ${COUNT-2&NBSP;} " end=" ${COUNT+2&NBSP;} "  var= "V" ><c:if test= "${count==v+1 }" ><li><a href= "Ecommodityservlet? curpage=${v+1} "style=" color: red ">${v+1 }</a></li></c:if><c:if test=" ${ COUNT!=V+1} "><li><a href= "Ecommodityservlet?curpage=${v+1}" &GT;${V+1}&LT;/A&GT;&LT;/LI&GT;&LT;/C:IF&GT;&LT;/C: Foreach></c:when><c:otherwise><c:foreach begin= "${TOTALPAGE-5&NBSP;}"  end= "${ totalpage-1 } " var=" V "><c:if test=" ${count==v+1 } "><li><a href=" ecommodityservlet?curpage=${v+1} "style=" color: red ">${v+1 }</a></li></c:if>< C:if test= "${COUNT!=V+1&NBSP;}" ><li><a href= "Ecommodityservlet?curpage=${v+1}" >${v+1} </a></li></c:if></c:forEach></c:otherwise></c:choose><li><a  href= "Ecommodityservlet?curpage=${ count+1}" > next page </a></li></ul></div></div ></div>

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Java Web page numbering pagination