Spring Hibernate实现分页功能 Spring Hibernate实现分页功能

时间:2021-03-24 Coder_py 人气:0

想了解Spring Hibernate实现分页功能的相关内容吗，Coder_py在本文为您仔细讲解Spring Hibernate实现分页功能的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：Spring,Hibernate,分页，下面大家一起来学习吧。

本实例采用Spring+Hibernate实现简单的分页功能，供大家参考，具体内容如下

最关键的是运用Hibernate的query里面的两个方法：

query.setFirstResult((p.getPage()-1)*p.getRows()); 指定从那个对象开始查询，参数的索引位置是从0开始的。

query.setMaxResults(p.getRows()); 分页时，一次最多产寻的对象数主要实现类：

package com.paging;

import java.util.List;

import javax.annotation.Resource;

import org.hibernate.Query;
import org.hibernate.SessionFactory;

import com.user.User;

import sun.nio.cs.US_ASCII;

public class Paging {
 final int num=3;
 @Resource
 SessionFactory sessionFactory;

 public void setSessionFactory(SessionFactory sessionFactory) {
 this.sessionFactory = sessionFactory;
 }
 
 
 public List<User> paging(int index) {
 
 String hql = "from User";
 Query query = sessionFactory.getCurrentSession().createQuery(hql);
 query.setFirstResult((index-1)*num);
 query.setMaxResults(num);
 
 return query.list();
 
 }
 
 
 
 

}

web层:

package com.web;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.paging.Paging;
import com.user.User;



@Controller
@RequestMapping("/Page")
public class Web {
 @Resource
 Paging paging;

 public void setPaging(Paging paging) {
 this.paging = paging;
 }
 
 
 @RequestMapping("/page")
 public String page(Model model,int index) {
 List<User> list = paging.paging(index);
 model.addAttribute("list", list);
 return "index";
 
 
 }
 
}

jsp页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 <head>
 <base href="<%=basePath%>" rel="external nofollow" >
 
 <title>My JSP 'index.jsp' starting page</title>
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0"> 
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css" rel="external nofollow" >
 -->
 </head>
 
 <body>
 <h1><a href="/Paging/Page/page?index=1" rel="external nofollow" >1</a></h1>
 <h1><a href="/Paging/Page/page?index=2" rel="external nofollow" >2</a></h1>
 <h1><a href="/Paging/Page/page?index=3" rel="external nofollow" >3</a></h1>
 
 <c:if test="${!empty list }">
 <c:forEach items="${list}" var="list">
 
 ${list.name}
 ${list.adderss}
 
 
 
     </c:forEach>
 </c:if>
 



 </body>
</html>

因为是简单例子所以界面就很简陋了。

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