SpringMVC + Mybatis + maven 后台分页设计

2021-12-24 04:47:53

一.前端jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<%@ include file="/common/taglibs.jsp"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

function searchHS(){

var housenum=$("#housenum").val();

var housename=$("#housename").val();

var para = "housenum=" + housenum ;

para += "&housename=" + housename ;

para = para.replace(/[\r\n]/g,"").replace(/undefined/g,"").replace(/[]/g,"");

window.location.href=encodeURI("${path}/house/list?" + para);

}

</script>

<style>

label {

display: block;

margin-bottom: 5px;

display: inline-table;

}

.input-btn {

width: 130px;

}

.mr5 {

margin-right: 5px;

}

.ss-btn {

border: 1px solid #1ba794;

background-color: #1ba794;

margin-top: 0px;

height: 24px;

color: #fff;

font-size: 14px;

}

input[type="text"]{

height: 23px;

margin-bottom: 0px;

}

</style>

</head>

</div>

</div>

</div>

<%-- 加载分页时请求路径及请求方式--%>

</form>

<thead>

<tr>

<th style="display:none">${userid}</th>

</tr>

</thead>

<c:forEach items="${houselist}" var="list">

<tbody>

<td class="ddbh">${list.houseNum }</td>

<td class="ddyzf">${list.houseName}</td>

<td class="ddyzf" >${list.createPeople}</td>

</td>

</tr>

</tbody>

</c:forEach>

</table>

</div>

${houseRec.pageNoDisp }

</body>

</html>

二.后台代码

/////////////////////////////////1.业务控制层（controller层）////////////////////////////

package com.sykj.haoguanjia.controller.system;

import java.util.List;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.ResponseBody;

import com.sykj.haoguanjia.model.HouseRes;

import com.sykj.haoguanjia.service.HouseResService;

/**

* @author hykang

* @date 2017-05-09

@Controller

@RequestMapping("/house")

public class HouseController {

@Autowired

private HouseResService houseResService;

@RequestMapping("/list")

public String houseList(@RequestParam(value = "pageNo", defaultValue = "1") int pageNo,String housenum,String housename,Model model){

List<HouseRes> pagelist = null;

try {

HouseRes pageRec = new HouseRes();

pageRec.setPageNo(pageNo);

pageRec.setHouseNum(housenum);

if(!"".equals(housename) && housename != null){

housename=new String(housename.getBytes("ISO-8859-1"),"UTF-8");

//housename = java.net.URLDecoder.decode(housename, "utf-8");

}

pageRec.setHouseName(housename);

pageRec.setDeleteFlag(0);

pagelist = houseResService.findPageData(pageRec);

model.addAttribute("houselist", pagelist);

model.addAttribute("houseRec", pageRec);

model.addAttribute("housenum", housenum);

model.addAttribute("housename", housename);

} catch (Exception e) {

e.printStackTrace();

}

return "house/list";

}

////////////////////////////////2.service层//////////////////////////////////////////

package com.sykj.haoguanjia.service;

import java.util.List;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.dao.DataAccessException;

import org.springframework.stereotype.Service;

import com.sykj.haoguanjia.dao.HouseResMapper;

import com.sykj.haoguanjia.model.HouseRes;

/**

* @author hekang

@Service

public class HouseResService {

@Autowired

private HouseResMapper houseResMapper;

public List<HouseRes> findPageData(HouseRes record) throws DataAccessException{

return houseResMapper.findPageData(record);

}

////////////////////////////////////////3.DAO层///////////////////////////////////////

package com.sykj.haoguanjia.dao;

import java.util.List;

import com.sykj.haoguanjia.model.HouseRes;

public interface HouseResMapper {

List<HouseRes> findPageData(HouseRes record);

}

////////////////////////////////////////4.Mapper.xml/////////////////////////////////////

</resultMap>

select

from tb_house_res

order by ${orderByClause}

</if>

</select>

////////////////////////////////////5.房源实体类////////////////////////////////////////////////////

package com.sykj.haoguanjia.model;

import java.math.BigDecimal;

import java.util.Date;

import com.sykj.haoguanjia.page.PageHelper;

public class HouseRes extends PageHelper{

private Long houseresid;

private String houseNum;

private String houseName;

private Long createPeople;

public Long getHouseresid() {

return houseresid;

}

public void setHouseresid(Long houseresid) {

this.houseresid = houseresid;

}

public String getHouseNum() {

return houseNum;

}

public void setHouseNum(String houseNum) {

this.houseNum = houseNum == null ? null : houseNum.trim();

}

public String getHouseName() {

return houseName;

}

public void setHouseName(String houseName) {

this.houseName = houseName == null ? null : houseName.trim();

}

public Long getCreatePeople() {

return createPeople;

}

public void setCreatePeople(Long createPeople) {

this.createPeople = createPeople;

}

//////////////////////////////////6.分页类///////////////////////////////////////////

package com.sykj.haoguanjia.page;

import java.util.List;

import java.util.Map;

import org.apache.log4j.Logger;

import org.codehaus.jackson.map.ObjectMapper;

import com.google.common.collect.Lists;

import com.google.common.collect.Maps;

/**

* 封装分页数据

public class PageHelper {

private static final Logger logger = Logger.getLogger(PageHelper.class);

private static ObjectMapper mapper = new ObjectMapper();

public static String DEFAULT_PAGESIZE = "10";

private int pageNo; // 当前页码

private int pageSize; // 每页行数

private int totalRecord; // 总记录数

private int totalPage; // 总页数

private Map<String, String> params; // 查询条件

private Map<String, List<String>> paramLists; // 数组查询条件

private String searchUrl; // Url地址

private String pageNoDisp; // 可以显示的页号(分隔符"|"，总页数变更时更新)

private String orderByClause;

public PageHelper() {

pageNo = 1;

pageSize = Integer.valueOf(DEFAULT_PAGESIZE);

totalRecord = 0;

totalPage = 0;

params = Maps.newHashMap();

paramLists = Maps.newHashMap();

searchUrl = "";

pageNoDisp = "";

}

public static PageHelper newBuilder(int pageNo, int pageSize, String url) {

PageHelper page = new PageHelper();

page.setPageNo(pageNo);

page.setPageSize(pageSize);

page.setSearchUrl(url);

return page;

}

/**

* 查询条件转JSON

public String getParaJson() {

Map<String, Object> map = Maps.newHashMap();

for (String key : params.keySet()) {

if (params.get(key) != null) {

map.put(key, params.get(key));

}

String json = "";

try {

json = mapper.writeValueAsString(map);

} catch (Exception e) {

logger.error("转换JSON失败", e);

}

return json;

}

/**

* 数组查询条件转JSON

public String getParaListJson() {

Map<String, Object> map = Maps.newHashMap();

for (String key : paramLists.keySet()) {

List<String> lists = paramLists.get(key);

if (lists != null && lists.size() > 0) {

map.put(key, lists);

}

String json = "";

try {

json = mapper.writeValueAsString(map);

} catch (Exception e) {

logger.error("转换JSON失败", e);

}

return json;

}

/**

* 总件数变化时，更新总页数并计算显示样式

private void refreshPage() {

// 总页数计算

totalPage = totalRecord % pageSize == 0 ? totalRecord / pageSize : (totalRecord / pageSize + 1);

// 防止超出最末页（浏览途中数据被删除的情况）

if (pageNo > totalPage && totalPage != 0) {

pageNo = totalPage;

}

pageNoDisp = computeDisplayStyleAndPage();

}

/**

* 计算页号显示样式这里实现以下的分页样式("[]"代表当前页号)，可根据项目需求调整 [1],2,3,4,5,6,7,8..12,13

* 1,2..5,6,[7],8,9..12,13 1,2..6,7,8,9,10,11,12,[13]

private String computeDisplayStyleAndPage() {

StringBuffer buffer = new StringBuffer();

List<Integer> pageDisplays = Lists.newArrayList();

if (totalPage <= 11) {

for (int i = 1; i <= totalPage; i++) {

pageDisplays.add(i);

}

} else if (pageNo < 7) {

for (int i = 1; i <= 8; i++) {

pageDisplays.add(i);

}

pageDisplays.add(0);// 0 表示省略部分(下同)

pageDisplays.add(totalPage - 1);

pageDisplays.add(totalPage);

} else if (pageNo > totalPage - 6) {

pageDisplays.add(1);

pageDisplays.add(2);

pageDisplays.add(0);

for (int i = totalPage - 7; i <= totalPage; i++) {

pageDisplays.add(i);

}

} else {

pageDisplays.add(1);

pageDisplays.add(2);

pageDisplays.add(0);

for (int i = pageNo - 2; i <= pageNo + 2; i++) {

pageDisplays.add(i);

}

pageDisplays.add(0);

pageDisplays.add(totalPage - 1);

pageDisplays.add(totalPage);

}

buffer.append("<div style='text-align:right;padding-right:20px;'>");

if (pageNo==1) {

buffer.append("首页");

buffer.append("上一页");

}else{

buffer.append("<a class='tcdNumber' href='javascript:_doQuery(1);'>首页</a>");

buffer.append("<a class='tcdNumber' href='javascript:_doQuery("+(pageNo-1)+");'>上一页</a>");

}

for(Integer i:pageDisplays){

if(i==0){

buffer.append("<a class='tcdNumber' >"+"..."+"</a>");

}else if( i == pageNo ) {

buffer.append("<a class='curNumber' href='javascript:_doQuery("+i+");'>"+i+"</a>");

} else {

buffer.append("<a class='tcdNumber' href='javascript:_doQuery("+i+");'>"+i+"</a>");

}

if (pageNo==totalPage) {

buffer.append("下一页");

buffer.append("尾页");

}else{

buffer.append("<a class='tcdNumber' href='javascript:_doQuery("+(pageNo+1)+");'>下一页</a>");

buffer.append("<a class='tcdNumber' href='javascript:_doQuery("+totalPage+");'>尾页</a>");

}

buffer.append("</div>");

buffer.append("<script type='text/javascript'>");

buffer.append("function _doQuery(pageNo){document.queryForm.pageNo.value=pageNo;document.queryForm.submit();}");

buffer.append("</script>");

return buffer.toString();

}

public String getHTML(){

return null;

}

public int getPageNo() {

return pageNo;

}

public void setPageNo(int pageNo) {

this.pageNo = pageNo;

}

public int getPageSize() {

return pageSize;

}

public void setPageSize(int pageSize) {

this.pageSize = pageSize;

}

public int getTotalRecord() {

return totalRecord;

}

public void setTotalRecord(int totalRecord) {

this.totalRecord = totalRecord;

refreshPage();

}

public int getTotalPage() {

return totalPage;

}

public void setTotalPage(int totalPage) {

this.totalPage = totalPage;

}

public Map<String, String> getParams() {

return params;

}

public void setParams(Map<String, String> params) {

this.params = params;

}

public Map<String, List<String>> getParamLists() {

return paramLists;

}

public void setParamLists(Map<String, List<String>> paramLists) {

this.paramLists = paramLists;

}

public String getSearchUrl() {

return searchUrl;

}

public void setSearchUrl(String searchUrl) {

this.searchUrl = searchUrl;

}

public String getPageNoDisp() {

return pageNoDisp;

}

public void setPageNoDisp(String pageNoDisp) {

this.pageNoDisp = pageNoDisp;

}

public String getOrderByClause() {

return orderByClause;

}

public void setOrderByClause(String orderByClause) {

this.orderByClause = orderByClause;

}

本文转自沉淀人生 51CTO博客，原文链接:http://blog.51cto.com/825272560/1941378

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