Spring MVC结合Spring Data JPA实现按条件查询和分页
作者：王晓东1号
这篇文章主要为大家详细介绍了Spring MVC结合Spring Data JPA实现按条件查询，以及分页效果，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Android九宫格图片展示的具体代码，供大家参考，具体内容如下
推荐视频：尚硅谷Spring Data JPA视频教程，一学就会，百度一下就有。
后台代码：在DAO层继承Spring Data JPA的PagingAndSortingRepository接口实现的 （实现方法主要在SbglServiceImpl.java类中）
前台表现：用kkpaper表现出来
实现效果：
1、实体类
package com.jinhetech.yogurt.sbgl.entity;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
import org.hibernate.annotations.GenericGenerator;
import org.springframework.cache.annotation.Cacheable;
@Entity
@Table(name="SYS_SBGL")
@PrimaryKeyJoinColumn(name = "SBBM")
@Cacheable(value = "baseCache")
public class Sbgl implements Serializable{
private static final long serialVersionUID = -1423899016746755470L;
@Id
private String sbbm;
private String sbmc;
private String sblx;
private String sssx;
private String ssjd;
private String azsj;
private String azry;
private String sbzt;
private String sbjd;
private String sbwd;
private String wxlxr;
private String wxlxdh;
private String sbywxcs;
private String jzpylyz;
private String mqsbcyr;
private String bzsm;
//setter、getter方法省略
}
2、jsp页面，看最下面的分页组件（kkpaper）
resultMap集合是下面Controller中最后查询和分页后获得的所有数据信息，resultMap.resultList：resultList是Map集合的属性，里面存着<key,value>数据
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core_rt" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>
<!doctype html>
<c:set var="ctx" value="${pageContext.request.contextPath}" scope="session"/>
<html>
<head>
<title>设备管理</title>
<!-- zTree需要的样式和js -->
<link rel="stylesheet" href="${ctx }/yogurtResource/assembly/ztree/css/zTreeStyle.css" rel="external nofollow" type="text/css">
<script type="text/javascript" src="${ctx }/yogurtResource/assembly/ztree/jquery.ztree.core-3.5.js"></script>
<script type="text/javascript" src="${ctx }/yogurtResource/assembly/ztree/jquery.ztree.excheck-3.5.js"></script>
<!-- 验证框架 -->
<script type="text/javascript" src="${ctx }/yogurtResource/assembly/yogurt/user/formValidate.js"></script>
<!-- 修改表单验证错误提示样式 -->
<style type="text/css">
.table-bordered-ul li{ margin:0 5px; float:left}
label.error {
padding-left: 16px;
padding-bottom: 2px;
font-weight: bold;
color: #F00;
}
</style>
<script type="text/javascript">
function console(consoleTag, userId, stateTag) {
// 添加用户。
if("add" == consoleTag) {
$('#formid').prop("action", "${ctx}/sbgl/sbgl_add_list");
}
}
/**
* 搜索。
*/
function search() {
$('#searchForm').submit();
}
</script>
</head>
<body>
<div class="clear">
<div class="panel panel-default yogurt_route" id="yogurt_route">
<a href="${ctx }/home/home_list" rel="external nofollow" >首页</a> > <a
href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="navigate();">设备管理</a> > 设备列表
</div>
</div>
<ul id="bqnum">
<li><a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="navigate();">导航</a>
</li>
<li><a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="orgTree();">机构</a>
</li>
</ul>
<!-- 根据条件查询 -->
<div class="clear ppd10" style="line-height:32px">
<form action="${ctx }/sbgl/sbgl_list" method="post" id="searchForm">
<div style="float:left; width:200px">
设备名称：
<input type="text" name="serSbmc" id="serSbmc" >
</div>
<div class="floatleft">
设备类型：
<input type="text" name="serSblx" id="serSblx" >
</div>
<div class="floatleft">
所属市县：
<input type="text" name="serSssx" id="serSssx" >
</div>
<div class="floatleft">
基地名称：
<input type="text" name="serJdmc" id="serJdmc" >
</div>
<div class="floatleft">
设备状态：
<select class="form-control" style="display:inline-block; width:80px" name="serSbzt" id="serSbzt">
<option value="">全部</option>
<option value="Y">正常</option>
<option value="N">异常</option>
</select>
</div>
<button type="submit" class="btn btn-success yogurt_search_button" onclick="search();">
<img src="${ctx }/yogurtResource/images/Panel/search.png" width="18" height="18" />
</button>
</form>
</div>
<!-- 新增、删除 -->
<div class="panel panel-default" style="margin-top:10px">
<div class="yogurt_panel_title_core">
<span class="state_bold">共查询出数据结果：<span class="state_red">${resultMap.totalNum}</span>条</span>
</div>
<div class="more_core3">
<!-- <button type="button" class="btn btn-success yogurt_search_button2" onclick="console('add','');">新增设备</button> -->
<button type="button" class="btn btn-success yogurt_search_button2" onclick="window.location.href='${ctx }/sbgl/sbgl_add_list' ">新增设备</button>
<button type="button" class="btn btn-success yogurt_search_button2" onclick="console('delete','');">删除设备</button>
</div>
</div>
<!-- 列表 -->
<div class="yogurt_elementsbox_core clear">
<div class="yogurt_elementsbox_table_article" id="yogurt_elementsbox_table_article">
<table id="tableBody" border="0" cellspacing="0" cellpadding="0" class="table yogurt_elementsbox_table">
<thead>
<tr class="yogurt_tab_back" onmouseover="this.className='yogurt_tab_trhover'" onmouseout="this.className='yogurt_tab_back'">
<th width="3%"><input type="checkbox" onClick="allchecked(this)"></th>
<th width="10%">设备名称</th>
<th width="10%">设备类型</th>
<th width="10%">所属市县</th>
<th width="10%">基地名称</th>
<th width="10%">设备状态</th>
<th width="10%">维修联系人</th>
<th width="10%">联系电话</th>
<th width="10%">设备持有人</th>
<th width="17%" style="text-align:center;">操作</th>
</tr>
</thead>
<tbody id="userTb">
<c:forEach var="sbgl" items="${resultMap.resultList}" varStatus="status">
<tr>
<td><input type="checkbox" ></td>
<td>${sbgl.sbmc }</td>
<td>${sbgl.sblx }</td>
<td>${sbgl.sssx }</td>
<td>${sbgl.ssjd }</td>
<td>${sbgl.sbzt }</td>
<td>${sbgl.wxlxr }</td>
<td>${sbgl.wxlxdh }</td>
<td>${sbgl.mqsbcyr }</td>
<td style="text-align:center">
<a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="console('update', '${user.userId}')"> 修改</a>
<a href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="showRoles('${user.userId}')">| 查看</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<!--分页-->
<div style="clear:both; height:50px">
<!--加载分页组件-->
<div id="kkpager"></div>
<script type="text/javascript">
var param = "";
$(function() {
var totalPage = "${resultMap.totalPage}";
var totalRecords = "${resultMap.totalNum}";
var pageSize = "${resultMap.pageSize}";
var pageNum = parseInt("${resultMap.pageNum}") + 1;
//初始化分页控件
//有些参数是可选的，比如lang，若不传有默认值
kkpager.init({
pno: pageNum,
//总页码
total: "${resultMap.totalPage}",
//总数据条数
totalRecords: totalRecords,
//链接前部
hrefFormer: 'sbgl_list',
//链接尾部
hrefLatter: '',
getLink: function(n) {
return getInitParam() + "&pageNum=" + n + "&pageSize=" + pageSize;
},
lang: {
prePageText: '上一页',
nextPageText: '下一页',
totalPageBeforeText: '共',
totalPageAfterText: '页',
totalRecordsAfterText: '条数据',
gopageBeforeText: '转到',
gopageButtonOkText: '确定',
gopageAfterText: '页',
buttonTipBeforeText: '第',
buttonTipAfterText: '页'
}
});
//生成
kkpager.generPageHtml();
$('#mykkpagerselect').val(pageSize);
});
function returnoption(pageSize) {
window.location.href = getInitParam() + "&pageNum=1&pageSize=" + pageSize;
}
function getInitParam() {
var serSbmc = $('#serSbmc').val();
var serSblx = $('#serSblx').val();
var serSssx = $('#serSssx').val();
var serJdmc = $('#serJdmc').val();
var serSbzt = $('#serSbzt').val();
var attr = "?serSbmc=" + encodeURI(encodeURI(serSbmc))
+ "&serSblx=" + serSblx + "&serSssx=" + serSssx + "&serJdmc=" + serJdmc+ "&serSbzt=" + serSbzt;
return "${ctx}/sbgl/sbgl_list" + attr;
}
</script>
<!--分页结束-->
</div>
<!--分页end-->
</body>
</html>
3、Controller（看红色字体下面那个处理方法）
package com.jinhetech.yogurt.sbgl.controller;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.Resource;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.apache.shiro.authz.annotation.RequiresRoles;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import org.springframework.web.servlet.view.RedirectView;
import com.jinhetech.yogurt.dictionary.crop.service.impl.CropServiceImpl;
import com.jinhetech.yogurt.func.entity.Func;
import com.jinhetech.yogurt.func.service.FuncService;
import com.jinhetech.yogurt.menu.entity.Menu;
import com.jinhetech.yogurt.menu.service.MenuService;
import com.jinhetech.yogurt.menu.util.MenuUtil;
import com.jinhetech.yogurt.organization.entity.OrgTable;
import com.jinhetech.yogurt.organization.service.OrgService;
import com.jinhetech.yogurt.organization.util.OrgUtil;
import com.jinhetech.yogurt.role.entity.Role;
import com.jinhetech.yogurt.role.service.RoleService;
import com.jinhetech.yogurt.sbgl.dao.SbglDao;
import com.jinhetech.yogurt.sbgl.entity.Sbgl;
import com.jinhetech.yogurt.sbgl.service.SbglService;
import com.jinhetech.yogurt.sbgl.util.SbglUtil;
import com.jinhetech.yogurt.user.entity.User;
import com.jinhetech.yogurt.user.entity.UserInfo;
import com.jinhetech.yogurt.user.service.UserService;
import com.jinhetech.yogurt.user.util.UserUtil;
import com.jinhetech.yogurt.util.base.BaseController;
import com.jinhetech.yogurt.util.base.Constants;
import com.jinhetech.yogurt.util.common.TextUtils;
import com.jinhetech.yogurt.util.common.UUIDHexGenerator;
/**
* 系统用户管理控制类
*
* @author Wang Hao
* @version 1.0 2014-02-28 初版
*/
@Controller("sbglController")
@RequestMapping("/sbgl")
public class SbglController extends BaseController {
// @Resource(name = "sbglDao")
// private SbglDao sbglDao;
@Resource(name = "sbglService")
private SbglService sbglService;
/**
* 平台权限管理导航*/
@RequestMapping("/home_list")
public ModelAndView home() {
return new ModelAndView("iot/permis/permis_home");
}
/**
* 查询设备信息列表(支持分页和多条件查询)。
*
*/
@RequestMapping("sbgl_list")
@RequiresRoles("sbgl/sbgl_list")
public String getUserList(Model model) throws Exception {
//显示设备列表
// List<Sbgl> lst=new ArrayList<Sbgl>();
// lst=(List<Sbgl>) sbglService.getAll();
Map<String, Object> resultMap = null;
// 查询表单或分页保持请求时 请求参数的接收
Map<String, String> serArgs = new HashMap<String, String>();
serArgs = SbglUtil.getSelArgsToMap(request);//这个类在下面给出
resultMap = sbglService.getUserBySearch(serArgs, "wxlxdh");
model.addAttribute("resultMap", resultMap);
// model.addAttribute("lst", lst);
return "sbgl/sbgl_list";
}
/**
* 新增设备信息列表(支持分页和多条件查询)。
*
* @author YangZhenghua 2014-5-28
* @throws Exception
*/
@RequestMapping("sbgl_add_list")
@RequiresRoles("sbgl/sbgl_add_list")
public String getAddList(Model model) throws Exception {
System.out.println("aaa");
model.addAttribute("aaa","aaa");
model.addAttribute("resultMap", "hello world");
return "sbgl/sbgl_add_list";
}
/**
* 保存、修改用户信息。
*
* @author YangZhenghua 2014-5-28
* @throws Exception
*/
@RequestMapping("sbgl_save_list")
@RequiresRoles("sbgl/sbgl_save_list")
public ModelAndView SaveSbgl(Sbgl sbgl) throws Exception {
String sbmc=request.getParameter("sbmc");
String sblx=request.getParameter("sblx");
String sssx=request.getParameter("sssx");
String ssjd=request.getParameter("ssjd");
String azsj=request.getParameter("azsj");
String azry=request.getParameter("azry");
String sbzt=request.getParameter("sbzt");
String sbjd=request.getParameter("sbjd");
String sbwd=request.getParameter("sbwd");
String wxlxr=request.getParameter("wxlxr");
String wxlxdh=request.getParameter("wxlxdh");
String sbywxcs=request.getParameter("sbywxcs");
String jzpylyz=request.getParameter("jzpylyz");
String mqsbcyr=request.getParameter("mqsbcyr");
String bzsm=request.getParameter("bzsm");
sbgl.setSbbm(UUIDHexGenerator.generate());
sbgl.setSbmc(sbmc);
sbgl.setSblx(sblx);
sbgl.setSssx(sssx);
sbgl.setSsjd(ssjd);
sbgl.setAzsj(azsj);
sbgl.setAzry(azry);
sbgl.setSbzt(sbzt);
sbgl.setSbjd(sbjd);
sbgl.setSbwd(sbwd);
sbgl.setWxlxr(wxlxr);
sbgl.setWxlxdh(wxlxdh);
sbgl.setSbywxcs(sbywxcs);
sbgl.setJzpylyz(jzpylyz);
sbgl.setMqsbcyr(mqsbcyr);
sbgl.setBzsm(bzsm);
sbglService.save(sbgl);
return new ModelAndView(new RedirectView("sbgl_list"));
}
}
3.2、SbglUtil.java
封装从前台传递过来的查询参数、前台传递过来的分页参数，都放到Map集合serArgs中
package com.jinhetech.yogurt.sbgl.util;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import com.jinhetech.yogurt.organization.entity.OrgTable;
import com.jinhetech.yogurt.report.entity.Report;
import com.jinhetech.yogurt.role.entity.Role;
import com.jinhetech.yogurt.user.entity.User;
import com.jinhetech.yogurt.user.entity.UserInfo;
import com.jinhetech.yogurt.util.common.JSONUtils;
import com.jinhetech.yogurt.util.common.TextUtils;
/**
* 用户功能模块工具类。
*
* @author YangZhenghua
* @version V1.0 2014-5-16 初版
*
*/
public class SbglUtil {
/**
* 封装从前台传递过来的查询参数。
*
* @author YangZhenghua
* @date 2014-6-26
*/
public static Map<String, String> getSelArgsToMap(HttpServletRequest request) throws Exception {
Map<String, String> serArgs = new HashMap<String, String>();
String serSbmc = request.getParameter("serSbmc");
String serSblx = request.getParameter("serSblx");
String serSssx = request.getParameter("serSssx");
String serJdmc = request.getParameter("serJdmc");
String serSbzt = request.getParameter("serSbzt");
String pageNum = request.getParameter("pageNum") == null ? "1" : request.getParameter("pageNum");
String pageSize = request.getParameter("pageSize") == null ? "10" : request.getParameter("pageSize");
//serArgs.put("serUserName", java.net.URLDecoder.decode(serUserName == null ? "" : serUserName, "UTF-8"));
serArgs.put("serSbmc", serSbmc);
serArgs.put("serSblx", serSblx);
serArgs.put("serSssx", serSssx);
serArgs.put("serJdmc", serJdmc);
serArgs.put("serSbzt", serSbzt);
serArgs.put("pageNum", pageNum);
serArgs.put("pageSize", pageSize);
return serArgs;
}
}
3.3、SbglService.java
package com.jinhetech.yogurt.sbgl.service;
import java.util.List;
import java.util.Map;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.jinhetech.yogurt.sbgl.entity.Sbgl;
public interface SbglService {
public List<Sbgl> getAll() throws Exception;
public Sbgl save(Sbgl sbgl) throws Exception;
public Map<String, Object> getUserBySearch(Map<String, String> serArgs, final String sortType) throws Exception;
}
3.4、SbglServiceImpl.java (根据前台传递来的查询参数进行查询，获得的结果数据放到Page objPage参数)
package com.jinhetech.yogurt.sbgl.service.impl;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.JoinType;
import javax.persistence.criteria.ListJoin;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.jinhetech.yogurt.role.entity.Role;
import com.jinhetech.yogurt.sbgl.dao.SbglDao;
import com.jinhetech.yogurt.sbgl.entity.Sbgl;
import com.jinhetech.yogurt.sbgl.service.SbglService;
import com.jinhetech.yogurt.user.entity.UserInfo;
import com.jinhetech.yogurt.util.common.PageUtils;
import com.jinhetech.yogurt.util.common.TextUtils;
@Service("sbglService")
@Transactional
public class SbglServiceImpl implements SbglService{
@Resource(name = "sbglDao")
private SbglDao sbglDao;
public List<Sbgl> getAll() throws Exception{
return (List<Sbgl>) this.sbglDao.findAll();
}
public Sbgl save(Sbgl sbgl) throws Exception {
return sbglDao.save(sbgl);
}
/**
* 查询用户信息列表(支持分页和多条件查询)。
*
* @author YangZhenghua 2014-6-19
*/
public Map<String, Object> getUserBySearch(final Map<String, String> serArgs, final String sortType) throws Exception {
// 获得分页对象pageable，并且在pageable中页码是从0开始，设定按照sortType升序排列
Pageable pageable = PageUtils.buildPageRequest(Integer.valueOf(serArgs.get("pageNum")),
Integer.valueOf(serArgs.get("pageSize")), sortType);
Page<Sbgl> objPage = sbglDao.findAll(new Specification<Sbgl>() {
public Predicate toPredicate(Root<Sbgl> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
List<Predicate> lstPredicates = new ArrayList<Predicate>();
if (TextUtils.isNotBlank(serArgs.get("serSbmc"))) {
lstPredicates.add(cb.like(root.get("sbmc").as(String.class), "%" + serArgs.get("serSbmc") + "%"));
}
if (TextUtils.isNotBlank(serArgs.get("serSblx"))) {
lstPredicates.add(cb.like(root.get("sblx").as(String.class), "%" + serArgs.get("serSblx") + "%"));
}
if (TextUtils.isNotBlank(serArgs.get("serSssx"))) {
lstPredicates.add(cb.like(root.get("sssx").as(String.class), "%" + serArgs.get("serSssx") + "%"));
}
if (TextUtils.isNotBlank(serArgs.get("serJdmc"))) {
lstPredicates.add(cb.like(root.get("jdmc").as(String.class), "%" + serArgs.get("serJdmc") + "%"));
}
if (TextUtils.isNotBlank(serArgs.get("serSbzt"))) {
lstPredicates.add(cb.equal(root.get("sbzt"), serArgs.get("serSbzt")));
}
Predicate[] arrayPredicates = new Predicate[lstPredicates.size()];
return cb.and(lstPredicates.toArray(arrayPredicates));
}
}, pageable);
return PageUtils.getPageMap(objPage);
}
}
3.4.1、PageUtils.java(分页数据工具类)
package com.jinhetech.yogurt.util.common;
import java.util.HashMap;
import java.util.Map;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.domain.Sort.Direction;
import com.jinhetech.yogurt.util.base.Constants;
/**
* 分页数据工具类。
*
* @author YangZhenghua
* @version V1.0 2014-6-24 初版
*
*/
public class PageUtils {
/**
* 封装分页数据到Map中。
*/
public static Map<String, Object> getPageMap(Page<?> objPage) {
Map<String, Object> resultMap = new HashMap<String, Object>();
resultMap.put(Constants.PAGE_RESULT_LIST, objPage.getContent()); // 数据集合
resultMap.put(Constants.PAGE_TOTAL_NUM, objPage.getTotalElements()); // 总记录数
resultMap.put(Constants.PAGE_TOTAL_PAGE, objPage.getTotalPages()); // 总页数
resultMap.put(Constants.PAGE_NUM, objPage.getNumber()); // 当前页码
resultMap.put(Constants.PAGE_SIZE, objPage.getSize()); // 每页显示数量
return resultMap;
}
/**
* 创建分页请求。
*
* @author YangZhenghua
* @date 2014-7-14
*
* @param pageNum 当前页
* @param pageSize 每页条数
* @param sortType 排序字段
* @param direction 排序方向
*/
public static PageRequest buildPageRequest(int pageNum, int pageSize, String sortType, String direction) {
Sort sort = null;
if (!TextUtils.isNotBlank(sortType)) {
return new PageRequest(pageNum - 1, pageSize);
} else if (TextUtils.isNotBlank(direction)) {
if (Direction.ASC.equals(direction)) {
sort = new Sort(Direction.ASC, sortType);
} else {
sort = new Sort(Direction.DESC, sortType);
}
return new PageRequest(pageNum - 1, pageSize, sort);
} else {
sort = new Sort(Direction.ASC, sortType);
return new PageRequest(pageNum - 1, pageSize, sort);
}
}
/**
* 创建分页请求(该方法可以放到util类中).
*/
public static PageRequest buildPageRequest(int pageNum, int pageSize, String sortType) {
return buildPageRequest(pageNum, pageSize, sortType, null);
}
/**
* 创建分页请求
*
* @author YangZhenghua
* @date 2014-11-12
*
* @param pageNum
* @param pageSize
* @param sort
* @return
*/
public static PageRequest buildPageRequest(int pageNum, int pageSize, Sort sort) {
return new PageRequest(pageNum - 1, pageSize, sort);
}
/**
* 创建分页请求(该方法可以放到util类中).
*/
public static PageRequest buildPageRequest(int pageNum, int pageSize) {
return buildPageRequest(pageNum, pageSize, null, null);
}
}
4、DAO（SbglDao.java）,对，只需要继承Spring Data JPA的PagingAndSortingRepository接口，Controller中调用其findAll()方法
package com.jinhetech.yogurt.sbgl.dao;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.repository.CrudRepository;
import org.springframework.data.repository.PagingAndSortingRepository;
import org.springframework.stereotype.Repository;
import com.jinhetech.yogurt.sbgl.entity.Sbgl;
import com.jinhetech.yogurt.user.entity.UserInfo;
@Repository("sbglDao")
public interface SbglDao extends PagingAndSortingRepository<Sbgl, String>, JpaSpecificationExecutor<Sbgl> {
}
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脚本之家。