自己写的分页代码

来源：互联网发布：xcode8 mac 编辑：程序博客网时间：2024/04/29 09:10

类
public List<Food> findFoodList(int page) {
  //每页显示的产品数量
  int temp=6;
  List<Food> list=new ArrayList<Food>();
  Food food=null;
  int rowBegin=0;
        if(page>1 && page<=this.findTotalPage()){
   rowBegin=temp*(page-1);
  }else if(page>this.findTotalPage()){
   page=this.findTotalPage();
   rowBegin=temp*(page-1);
  }
  String sql="SELECT TOP "+temp+" * FROM food WHERE foodID NOT IN(select top "+rowBegin+" foodID FROM food order by foodID ) order by foodID ";
  Connection con=BaseDao.getCon();
  PreparedStatement pstmt=null;
  ResultSet rs=null;
  try {
   pstmt=con.prepareStatement(sql);
   rs=pstmt.executeQuery();
   while(rs.next()){
    food=new Food(rs.getInt(1),rs.getString(2),rs.getString(3),rs.getFloat(4),rs.getString(5),rs.getString(6));
    list.add(food);

}
} catch (SQLException e) {

   e.printStackTrace();
  }finally{
   BaseDao.closeALL(con, pstmt, rs);
  }
  return list;
}

jsp:

<%//分页 %>
<div>
<%
int pageTotal=foodBiz.findTotalPage();
int foodTotal=foodBiz.findCountFood();
if(p<1){
  p=1;
}else if(p>pageTotal){
  p=pageTotal;
}
int pStart=p-3;
int pDone=p+3;
if(pStart<=0){
  pStart=1;
}
if(pDone>pageTotal-3){
  pDone=pageTotal;
}
%>
<a href="index.jsp?p=1"><<</a> | 
<% for(int i=pStart;i<=pDone;i++){%>
<a href="index.jsp?p=<%=i %>"><%=i%></a> | 
<%} %>
<a href="index.jsp?p=<%=pageTotal %>">>></a>
</div>