SpringData JPA 的 PagingAndSortingRepository接口已经提供了对分页的支持，查询的时候我们只需要传入一个 org.springframework.data.domain.Pageable
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接口的实现类,指定PageNumber和pageSize即可
springData包中的 PageRequest类已经实现了Pageable接口，我们可以直接使用下边是部分代码：
DAO：
package com.jiaoyiping.jdjy.sourcecode.dao;
import com.jiaoyiping.jdjy.sourcecode.bean.SourceCode;
import org.springframework.data.repository.PagingAndSortingRepository;
/**
* Created with IntelliJ IDEA.
* User: 焦一平
* Date: 14-11-20
* Time: 下午11:18
* To change this template use File | Settings | File Templates.
*/
public interface SourceCodeDao extends PagingAndSortingRepository {
}
service：
package com.jiaoyiping.jdjy.sourcecode.service;
import com.jiaoyiping.jdjy.sourcecode.bean.SourceCode;
import com.jiaoyiping.jdjy.sourcecode.dao.SourceCodeDao;
import org.apache.solr.client.solrj.SolrServerException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import javax.transaction.Transactional;
import java.io.IOException;
import java.sql.Timestamp;
import java.util.List;
/**
* Created with IntelliJ IDEA.
* User: 焦一平
* Date: 14-11-20
* Time: 下午11:24
* To change this template use File | Settings | File Templates.
*/
public class SourceCodeService {
@Autowired
private SourceCodeDao sourceCodeDao;public Page getSourceCode(int pageNumber,int pageSize){
PageRequest request = this.buildPageRequest(pageNumber,pageSize);
Page sourceCodes= this.sourceCodeDao.findAll(request);
return sourceCodes;
}
//构建PageRequest
private PageRequest buildPageRequest(int pageNumber, int pagzSize) {
return new PageRequest(pageNumber - 1, pagzSize, null);
}
}
controller：
package com.jiaoyiping.jdjy.sourcecode.controller;
import com.jiaoyiping.jdjy.sourcecode.Const;
import com.jiaoyiping.jdjy.sourcecode.bean.SourceCode;
import com.jiaoyiping.jdjy.sourcecode.service.SourceCodeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Created with IntelliJ IDEA.
* User: 焦一平
* Date: 14-11-20
* Time: 下午11:22
* To change this template use File | Settings | File Templates.
*/
@Controller
@RequestMapping(value = "/sourcecode")
public class SourceCodeController {
@Autowired
private SourceCodeService sourceCodeService;
@RequestMapping(value = "list")
public ModelAndView listSourceCode(HttpServletRequest request, HttpServletResponse response){
String pageNumberStr=request.getParameter("pageNumber");
if(pageNumberStr==null ||"".equals(pageNumberStr)){
pageNumberStr="1";
}
int pageNumber = Integer.parseInt(pageNumberStr);
int pageSize = Const.PAGE_SIZE;
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("/sourcecode/listSourceCode");
Page sourceCodes = this.sourceCodeService.getSourceCode(pageNumber, pageSize);
modelAndView.addObject("sourceCodeList",sourceCodes.getContent());
modelAndView.addObject("totalPageNumber",sourceCodes.getTotalElements());
modelAndView.addObject("pageSize",pageSize);
return modelAndView;
}
}
前端分页：
前端分页组件我们使用bootstrap提供的分页组件：
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%--
Created by IntelliJ IDEA.
User: 焦一平
Date: 2014/12/27
Time: 9:57
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
String basePath = request.getContextPath();
String MethodURL=basePath+"/sourcecode/list.action?pageNumber=";
%>
源代码列表
源代码列表
" class="list-group-item">
最终结果如下：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持创新互联。
当前标题：SpringDataJPA实现查询分页demo
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