datatables 合併單元格(rowspan)

目前在項目中我們用到的是datatable插件。在官網中有一定的例子介紹的是複雜的合併表頭。並沒有具體的說怎麼去動態的合併tbody下的單元格

查閱資料有一下幾種，統計幾篇可行的文章先做記錄，再行研究防止原博主博文刪除：

第一種：

<table id="example" class="display table table-bordered" cellspacing="0" width="600" style="margin-top: 50px">
    <thead>
    <tr>
        <th>Name</th>
        <th>Position</th>
        <th>Age</th>
    </tr>
    </thead>
</table>

var dataSet = [
        [ "Tiger Nixon",  "Edinburgh",20,1  ],
        [ "Garrett Winters", "Tokyo",22,2],
        [ "Ashton Cox", "Tokyo",21,0 ]
            ];

    $('#example').DataTable({
        data: dataSet,
        paging: true,
        searching:false, //搜索欄
        lengthChange : false, //是否允許改變每頁顯示的數據條數
        ordering:false,
        columnDefs: [{
            targets: 1,
            createdCell: function (td, cellData, rowData, row, col) {
                var rowspan = rowData[3];
                if (rowspan > 1) {
                    $(td).attr('rowspan', rowspan)
                }
                if (rowspan == 0) {
                    $(td).remove();
                }
            }
        }]
    });

說明一下：要實現rowspan/colspan這樣的特殊效果需要用到createdCell回調函數，此函數可配置在columns配置中,亦可配置在columnDefs中，此例採用columnDefs配置實現。具體原理是，在創建單元格cell的是否控制怎樣渲染，後臺需要定義好rowspan的值，這個需要後臺想辦法給出這個值。

後臺給出rowspan的思路：

將需要分組的屬性構造Map<key,count> map，遍歷list得到map,再遍歷list設置rowspan=map.get(key)，get過的key設置0再get, OK, 搞定

具體實現：

http://www.cnblogs.com/hdwang/p/7169255.html

效果圖如上。

2.html代碼，含js代碼

2.1 common.js

/**
 * Created by hdwang on 2017/6/23.
 */
var language = { "search": "", "sSearch" : "搜索", "sUrl" : "", "sProcessing" : "正在加載數據...", "sLengthMenu" : "顯示_MENU_條 ", "sZeroRecords" : "沒有您要搜索的內容",
    "sInfo" : "從_START_ 到 _END_ 條記錄——總記錄數爲 _TOTAL_ 條", "sInfoEmpty" : "記錄數爲0", "sInfoFiltered" : "(全部記錄數 _MAX_  條)", "sInfoPostFix" : "",
    "oPaginate": { "sFirst" : "第一頁", "sPrevious" : " 上一頁 ", "sNext" : " 下一頁 ", "sLast" : " 最後一頁 " }
};

/**
 * 將參數對象轉換成url查詢參數
 * @param params 參數對象
 * @returns {string} url查詢參數
 */
function getUrlParams(params) {
    var queryStr = '';
    var isFirstParam = true;
    for(var key in params){
        if(isFirstParam){
            queryStr += key + '=' + params[key];
            isFirstParam = false;
        }else{
            queryStr += '&' + key + '=' + params[key];
        }
    }
    return queryStr;
}

2.2 home.ftl

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 上述3個meta標籤*必須*放在最前面，任何其他內容都*必須*跟隨其後！ -->
    <title>cpm system</title>

    <!-- Bootstrap -->
    <link href="/thirdlib/bootstrap/css/bootstrap.min.css" rel="stylesheet">

    <!-- datatables -->
    <link href="/thirdlib/datatables/css/jquery.dataTables.min.css" rel="stylesheet"/>

    <link href="/css/common.css" rel="stylesheet" />
</head>
<body>


<div id="tableArea" style="padding: 100px;">
<div>
    <a href="/home/export">導出</a>
</div>


    <table id="rowspanTable" class="table table-bordered">
        <thead>
            <th>地區</th>
            <th>公司</th>
            <th>部門</th>
            <th>員工姓名</th>
        </thead>
    </table>

</div>

</body>

<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="/thirdlib/jquery/jquery-2.0.3.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="/thirdlib/bootstrap/js/bootstrap.min.js"></script>

<!-- datatables -->
<script src="/thirdlib/datatables/js/jquery.dataTables.min.js"></script>

<script src="/js/common.js"></script>

<script type="text/javascript">
    $(function(){

        $('#rowspanTable').dataTable( {
            "paging": true,
            "processing": true,
            "serverSide": true,
            "searching":false, //搜索欄
            "lengthChange" : false, //是否允許改變每頁顯示的數據條數
            "pageLength": 10, //每行顯示記錄數
            "info":true, //開啓Datatables信息顯示（記錄數等）
            "ordering":false, //全局定義是否啓用排序，優先級比columns.orderable高
            "language": language,
            "ajax": {
                "url": "/home/query",
                "type": "POST"
            },
            "columns": [
                {"data":"area", "orderable": false,"searchable": false},
                { "data": "company", "orderable": false ,"searchable": false},
                { "data": "department", "orderable": false,"searchable": false },
                { "data": "userName", "orderable": false ,"searchable": false}
            ],
            "columnDefs": [{
                targets: [0,1,2], //第1，2，3列
                createdCell: function (td, cellData, rowData, row, col) {
                    var rowspan = 1;
                    if(col == 0){
                        rowspan = rowData.areaRowSpan;
                    }
                    if(col ==1){
                        rowspan = rowData.companyRowSpan;
                    }
                    if(col ==2){
                        rowspan = rowData.departmentRowSpan;
                    }

                    if (rowspan > 1) {
                        $(td).attr('rowspan', rowspan)
                    }
                    if (rowspan == 0) {
                        $(td).remove();
                    }
                }
            }]
        } );


    });

</script>

</html>

3.後臺代碼

3.1 分頁參數對象

/**
 * Created by hdwang on 2017/6/22.
 * 分頁參數
 */
public class PageParam {

    /**
     * 第幾次繪畫（前端標識）
     */
    private int draw;

    /**
     * 起始記錄(從0開始)，mysql也是從0開始，吻合，good！
     */
    private int start;

    /**
     * 頁大小
     */
    private int length;

    public int getDraw() {
        return draw;
    }

    public void setDraw(int draw) {
        this.draw = draw;
    }

    public int getStart() {
        return start;
    }

    public void setStart(int start) {
        this.start = start;
    }

    public int getLength() {
        return length;
    }

    public void setLength(int length) {
        this.length = length;
    }

    /**
     * 第幾頁(0-n)
     */
    public int getPage(){
        return this.start/this.length;
    }
}

3.2 數據返回對象

import java.util.List;

/**
 * Created by hdwang on 2017/6/22.
 * 表格數據（datatables）
 */
public class TableData<T> {

    /**
     * 第幾次繪畫（前端標識）
     */
    private int draw;

    /**
     * 行過濾（不知道幹嘛的）
     */
    private int recordsFiltered;

    /**
     * 總行數
     */
    private int recordsTotal;

    /**
     * 行數據
     */
    private List<T> data;

    /**
     * 起始記錄(用於前端初始化序列號用的)
     */
    private int start;

    /**
     *  錯誤信息
     */
    private String error;

    public int getDraw() {
        return draw;
    }

    public void setDraw(int draw) {
        this.draw = draw;
    }

    public int getRecordsFiltered() {
        return recordsFiltered;
    }

    public void setRecordsFiltered(int recordsFiltered) {
        this.recordsFiltered = recordsFiltered;
    }

    public int getRecordsTotal() {
        return recordsTotal;
    }

    public void setRecordsTotal(int recordsTotal) {
        this.recordsTotal = recordsTotal;
    }

    public List<T> getData() {
        return data;
    }

    public void setData(List<T> data) {
        this.data = data;
    }

    public int getStart() {
        return start;
    }

    public void setStart(int start) {
        this.start = start;
    }

    public String getError() {
        return error;
    }

    public void setError(String error) {
        this.error = error;
    }
}

3.3 數據實體對象

import java.io.Serializable;

/**
 * Created by hdwang on 2017/7/14.
 */
public class Member{

    private String area;
    private String company;
    private String department;
    private String userName;

    private Integer areaRowSpan;
    private Integer companyRowSpan;
    private Integer departmentRowSpan;


    public Member(String area,String company,String department,String userName){
        this.area = area;
        this.company = company;
        this.department = department;
        this.userName = userName;
    }

    public String getArea() {
        return area;
    }

    public void setArea(String area) {
        this.area = area;
    }

    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public Integer getAreaRowSpan() {
        return areaRowSpan;
    }

    public void setAreaRowSpan(Integer areaRowSpan) {
        this.areaRowSpan = areaRowSpan;
    }

    public Integer getCompanyRowSpan() {
        return companyRowSpan;
    }

    public void setCompanyRowSpan(Integer companyRowSpan) {
        this.companyRowSpan = companyRowSpan;
    }

    public Integer getDepartmentRowSpan() {
        return departmentRowSpan;
    }

    public void setDepartmentRowSpan(Integer departmentRowSpan) {
        this.departmentRowSpan = departmentRowSpan;
    }
}

3.4 導出相關類

/**
 * Created by hdwang on 2017/7/14.
 */
public class ExcelData {
    private String value;//單元格的值
    private int colSpan = 1;//單元格跨幾列
    private int rowSpan = 1;//單元格跨幾行
    private boolean alignCenter;//單元格是否居中，默認不居中，如果選擇是，則水平和上下都居中
    public boolean isAlignCenter() {
        return alignCenter;
    }
    public void setAlignCenter(boolean alignCenter) {
        this.alignCenter = alignCenter;
    }
    public String getValue() {
        return value;
    }
    public void setValue(String value) {
        this.value = value;
    }
    public int getColSpan() {
        return colSpan;
    }
    public void setColSpan(int colSpan) {
        this.colSpan = colSpan;
    }
    public int getRowSpan() {
        return rowSpan;
    }
    public void setRowSpan(int rowSpan) {
        this.rowSpan = rowSpan;
    }
}

package com.xincheng.cpm.common;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.util.List;

/**
 * Created by hdwang on 2017/7/14.
 */
public class ExcelUtil {


    /**
     * 生成excel工作簿
     * @param sheetTitle sheet名稱
     * @param titles 標題
     * @param rows 行數據
     * @return 工作簿
     */
    public XSSFWorkbook execute(String sheetTitle,String[] titles,List<List<ExcelData>> rows) {
        //定義工作簿
        XSSFWorkbook workbook = new XSSFWorkbook();

        //th樣式
        CellStyle titleStyle = workbook.createCellStyle();
        titleStyle.setBorderBottom((short) 1);
        titleStyle.setBorderRight((short)1);
        titleStyle.setBorderLeft((short)1);
        titleStyle.setBorderTop((short)1);
        titleStyle.setVerticalAlignment((short)1);
        titleStyle.setAlignment((short)2);
        XSSFFont font = workbook.createFont();
        font.setBold(true);
        titleStyle.setFont(font);
        //td樣式
        CellStyle style = workbook.createCellStyle();
        style.setBorderBottom((short)1);
        style.setBorderRight((short)1);
        style.setBorderLeft((short)1);
        style.setBorderTop((short)1);
        style.setVerticalAlignment((short)1);

        //創建工作表
        XSSFSheet sheet = workbook.createSheet(sheetTitle);
        sheet.setDefaultRowHeightInPoints(20.0F);

        //創建標題行
        XSSFRow titleRow = sheet.createRow(0);


        for(int col=0;col<titles.length;col++) { //遍歷列
            Cell cell = titleRow.createCell(col);
            cell.setCellStyle(titleStyle);
            cell.setCellValue(titles[col]);

            for(int row=0;row<rows.size();row++){ //遍歷行
                int rowIndex = row+1;
                XSSFRow contentRow = sheet.getRow(rowIndex);
                if(contentRow == null){
                    contentRow = sheet.createRow(rowIndex);
                }
                ExcelData data = rows.get(row).get(col);
                Cell contentRowCell = contentRow.createCell(col);
                contentRowCell.setCellStyle(style);
                contentRowCell.setCellValue(data.getValue());
                //合併單元格
                if (data.getColSpan() > 1 || data.getRowSpan() > 1) {
                    CellRangeAddress cra = new CellRangeAddress(rowIndex, rowIndex + data.getRowSpan() - 1, col, col + data.getColSpan() - 1);
                    sheet.addMergedRegion(cra);
                }
            }
        }

        return workbook;
    }
}

3.5 controller層

package com.xincheng.cpm.controller;

import com.chenrd.common.excel.ExportExcel;
import com.xincheng.cpm.common.*;
import com.xincheng.cpm.entity.cpm.User;
import com.xincheng.cpm.service.UserService;
import com.xincheng.cpm.vo.IncomeDailyVO;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.*;

/**
 * Created by hdwang on 2017/6/19.
 */
@Controller
@RequestMapping("/home")
public class HomeController {

    @Autowired
    UserService userService;

    @RequestMapping("")
    public String index(HttpSession session, ModelMap map, HttpServletRequest request){
        User user = (User) session.getAttribute("user");
        map.put("user",user);
        return "home";
    }


    @RequestMapping(value="/query",method= RequestMethod.POST)
    @ResponseBody
    public TableData<Member> getUserByPage(PageParam pageParam, User user){
        Page<Member> userPage = this.getMembers(pageParam);
        TableData<Member> datas = new TableData<>();
        datas.setDraw(pageParam.getDraw());
        datas.setStart(pageParam.getStart());
        datas.setData(userPage.getContent());
        datas.setRecordsFiltered((int)userPage.getTotalElements());
        datas.setRecordsTotal((int)userPage.getTotalElements());
        return datas;
    }

    private Page<Member> getMembers(PageParam pageParam) {
        //1.模擬數據庫查詢
        Pageable pageable = new PageRequest(pageParam.getPage(), pageParam.getLength());
        long count = 6;
        List<Member> members = getMembersFromDb();

        //2.計算rowspan
        this.countRowspan(members);


        Page<Member> memberPage = new PageImpl<Member>(members,pageable,count);
        return memberPage;
    }

    private void countRowspan(List<Member> members) {
        Map<String,Integer> propertyCountMap = this.countPropertyCount(members);
        List<String> hadGetKeys = new ArrayList<>(); //曾經取過的key
        for(Member member:members){
            String areaKey = member.getArea();
            String companyKey = areaKey+member.getCompany();
            String departmentKey = companyKey+ member.getDepartment();

            Integer areaCount = propertyCountMap.get(areaKey);
            if(areaCount == null){
                member.setAreaRowSpan(1);
            }else{
                if(hadGetKeys.contains(areaKey)){
                    member.setAreaRowSpan(0); //曾經取過
                }else{
                    member.setAreaRowSpan(areaCount); //第一次取
                    hadGetKeys.add(areaKey);
                }
            }

            Integer companyCount = propertyCountMap.get(companyKey);
            if(companyCount == null){
                member.setCompanyRowSpan(1);
            }else {
                if(hadGetKeys.contains(companyKey)){
                    member.setCompanyRowSpan(0);
                }else{
                    member.setCompanyRowSpan(companyCount);
                    hadGetKeys.add(companyKey);
                }
            }

            Integer departmentCount = propertyCountMap.get(departmentKey);
            if(companyCount == null){
                member.setDepartmentRowSpan(1);
            }else {
                if(hadGetKeys.contains(departmentKey)){
                    member.setDepartmentRowSpan(0);
                }else{
                    member.setDepartmentRowSpan(departmentCount);
                    hadGetKeys.add(departmentKey);
                }
            }
        }
    }

    private List<Member> getMembersFromDb() {
        Member member1 = new Member("安徽","A","人力資源部"," 小紅");
        Member member2 = new Member("安徽","B","人力資源部"," 小明");
        Member member3 = new Member("浙江","C","人力資源部"," 小君");
        Member member4 = new Member("浙江","C","技術部"," 小王");
        Member member5 = new Member("浙江","D","技術部"," 小李");
        Member member6 = new Member("浙江","D","人力資源部"," 小剛");
        List<Member> members = new ArrayList<>();
        members.add(member1);
        members.add(member2);
        members.add(member3);
        members.add(member4);
        members.add(member5);
        members.add(member6);
        return members;
    }

    /**
     * 統計每個字段的每組成員個數
     * @param rows  記錄
     * @return 每個字段的每組成員個數
     */
    private Map<String,Integer> countPropertyCount(List<Member> rows){

        Map<String,Integer> propertyCountMap = new HashMap<>();

        for(Member member:rows){
            // "area": 無父級分組
            String area = member.getArea();
            if(propertyCountMap.get(area) == null){
                propertyCountMap.put(area,1);
            }else{
                int count = propertyCountMap.get(area);
                propertyCountMap.put(area,count+1);
            }

            // "company":有area父組
            String company = member.getCompany();
            String uniqueParent = member.getArea();
            String key = uniqueParent + company;
            if(propertyCountMap.get(key) == null){
                propertyCountMap.put(key,1);
            }else{
                int count = propertyCountMap.get(key);
                propertyCountMap.put(key,count+1);
            }

            // "department": 有area,company這兩個父組
            String department = member.getDepartment();
            uniqueParent = member.getArea()+member.getCompany();
            key = uniqueParent + department;
            if(propertyCountMap.get(key) == null){
                propertyCountMap.put(key,1);
            }else{
                int count = propertyCountMap.get(key);
                propertyCountMap.put(key,count+1);
            }
        }

        return propertyCountMap;
    }


    @RequestMapping("/export")
    public void export(HttpServletResponse response) throws IOException {
        List<Member> members = this.getMembersFromDb();
        this.countRowspan(members);

        List<List<ExcelData>> rows = new ArrayList<>();
        for(Member member:members){
            List<ExcelData> row = new ArrayList<>();
            ExcelData col1 = new ExcelData();
            col1.setValue(member.getArea());
            col1.setRowSpan(member.getAreaRowSpan());
            row.add(col1);

            ExcelData col2 = new ExcelData();
            col2.setValue(member.getCompany());
            col2.setRowSpan(member.getCompanyRowSpan());
            row.add(col2);

            ExcelData col3 = new ExcelData();
            col3.setValue(member.getDepartment());
            col3.setRowSpan(member.getDepartmentRowSpan());
            row.add(col3);

            ExcelData col4 = new ExcelData();
            col4.setValue(member.getUserName());
            row.add(col4);

            rows.add(row);
        }

        OutputStream outputStream = response.getOutputStream();
        try {
            String filename = URLEncoder.encode("員工" + ".xlsx", "UTF-8");
            response.setContentType("application/vnd.ms-excel");
            response.addHeader("Content-Disposition", "octet-stream;filename=" + filename);

            ExcelUtil excelUtil = new ExcelUtil();
            XSSFWorkbook workbook = excelUtil.execute("sheet1",new String[]{"地區","公司","部門","員工姓名"},rows);
            workbook.write(outputStream);
        } finally {
            if (outputStream != null) outputStream.close();
        }
    }




}

導出excel功能使用poi類庫實現。至此，頁面展示和導出均OK！

以上參考鏈接：https://www.cnblogs.com/hdwang/p/7115835.html

https://www.cnblogs.com/hdwang/p/7169255.html?utm_source=itdadao&utm_medium=referral

https://blog.csdn.net/u011974797/article/details/77983645

第二種：（第二篇文章）

原文地址：https://github.com/ssy341/datatables-cn/issues/211#issuecomment-372928301

"drawCallback": function (settings) {//
                    var api = this.api();
                    var rows = api.rows({ page: 'current' }).nodes();
 
 
                    // console.log('idx = ' + rows[0].cells.length);
 
 
                    var idx = 0;    // 第一列進行合併
                    var last = null;
                    var tr = null;
                    var ltd = null;
 
 
                    api.column(idx, { page: 'current' }).data().each(function (group, i) {
                        tr = $(rows[i]);
                        var td = $("td:eq(" + idx + ")", tr);
                        if (last !== group) {
                            td.attr("rowspan", 1);
                            td.text(group);
                            ltd = td;
                            last = group;
                            td.css("vertical-align", "middle");
                        } else {
                            ltd.attr("rowspan", parseInt(ltd.attr("rowspan")) + 1);
                            td.remove();
                        }
                    });
                    idx = 1//稍微修改了一下。根據項目需要完成第一列和第二列前五行的單元格合併
                    last = null;
                    tr = null;
                    ltd = null;
                    api.column(idx, { page: 'current' }).data().each(function (group, i) {
                        tr = $(rows[i]);
                        var td = $("td:eq(" + idx + ")", tr);
                        if (last !== group) {
                            td.attr("rowspan", 1);
                            td.text(group);
                            ltd = td;
                            last = group;
                            td.css("vertical-align", "middle");
                            idx = 0;
                        } else {
                            ltd.attr("rowspan", parseInt(ltd.attr("rowspan")) + 1);
                            td.remove();
                            if (parseInt(ltd.attr("rowspan")) === 5) {
                                idx = 1;//第二個五行
                            }
                        }
                    });
                },

第三種（篇）：datatables 多列行合併

原文地址：https://www.jianshu.com/p/ff094dc360f4

1、行合併想要的樣式如下，需要合併4列的行，如下圖（數據爲模擬數據，如有雷同，純屬人品爆發）

##controller代碼：

// 計算計劃類型的合併的planRowSpan

int tiefaRowSpan = Integer.parseInt(String.valueOf(statisticsTieFaConList.size()));

int tiedaoRowSpan = Integer.parseInt(String.valueOf(statisticsTieDaoConList.size()));

// 客戶所在位置下標

int logFlag = 0;

// 客戶名稱1,是判斷標準

String logName1 = "";

// 客戶名稱2，隨着循環變化

String logName2 = "";

// 客戶的合併的行數

int logRowSpan = 1;

// 供應商所在位置下標

int supFlag = 0;

// 供應商名稱1,是判斷標準

String supName1 = "";

// 供應商名稱2，隨着循環變化

String supName2 = "";

// 供應商的合併的行數

int supRowSpan = 1;

// 貨票號所在位置下標

int cargoFlag = 0;

// 貨票號1,是判斷標準

String cargoName1 = "";

// 貨票號2，隨着循環變化

String cargoName2 = "";

// 貨票號的合併的行數

int cargoRowSpan = 1;

// 計算行的合併的rowspan的值 1、planRowSpan:計劃類型，2、logRowSpan:客戶公司，3、supRowSpan：運輸公司，4、cargoRowSpan:貨票號

for (int i=0; i < resultList.size(); i++) {

// 因爲鐵發和鐵到是按照類別分開的，所以按照鐵發的數量進行判斷的分割

if (i == 0) {

resultList.get(i).put("planRowSpan", tiefaRowSpan);

logFlag = i;

logName1 = String.valueOf(resultList.get(i).get("logCompany"));

supFlag = i;

supName1 = String.valueOf(resultList.get(i).get("supCompany"));

cargoFlag = i;

cargoName1 = String.valueOf(resultList.get(i).get("cargobillCode"));

} else if (i < tiefaRowSpan){

resultList.get(i).put("planRowSpan", 0);

} else if (i == tiefaRowSpan) {

resultList.get(i).put("planRowSpan", tiedaoRowSpan);

resultList.get(supFlag).put("supRowSpan", supRowSpan);

resultList.get(cargoFlag).put("cargoRowSpan", cargoRowSpan);

supFlag = i;

supName1 = String.valueOf(resultList.get(i).get("supCompany"));

cargoFlag = i;

cargoName1 = String.valueOf(resultList.get(i).get("cargobillCode"));

} else if (i > tiefaRowSpan) {

resultList.get(i).put("planRowSpan", 0);

}

// 取物流商的名稱進行對比

if (i != 0 && i != tiefaRowSpan) {

logName2 = String.valueOf(resultList.get(i).get("logCompany"));

supName2 = String.valueOf(resultList.get(i).get("supCompany"));

cargoName2 = String.valueOf(resultList.get(i).get("cargobillCode"));

if (logName1.equals(logName2)) {

logRowSpan = logRowSpan + 1;

resultList.get(i).put("logRowSpan", 0);

if (supName1.equals(supName2)) {

supRowSpan = supRowSpan + 1;

resultList.get(i).put("supRowSpan", 0);

if (cargoName1.equals(cargoName2)) {

cargoRowSpan = cargoRowSpan + 1;

resultList.get(i).put("cargoRowSpan", 0);

} else {

resultList.get(cargoFlag).put("cargoRowSpan", cargoRowSpan);

cargoFlag = i;

cargoRowSpan = 1;

cargoName1 = String.valueOf(resultList.get(i).get("cargobillCode"));

cargoName2 = "";

}

} else {

resultList.get(supFlag).put("supRowSpan", supRowSpan);

supFlag = i;

supRowSpan = 1;

supName1 = String.valueOf(resultList.get(i).get("supCompany"));

supName2 = "";

resultList.get(cargoFlag).put("cargoRowSpan", cargoRowSpan);

cargoFlag = i;

cargoRowSpan = 1;

cargoName1 = String.valueOf(resultList.get(i).get("cargobillCode"));

cargoName2 = "";

}

} else {

resultList.get(logFlag).put("logRowSpan", logRowSpan);

logFlag = i;

logRowSpan = 1;

logName1 = String.valueOf(resultList.get(i).get("logCompany"));

logName2 = "";

resultList.get(supFlag).put("supRowSpan", supRowSpan);

supFlag = i;

supRowSpan = 1;

supName1 = String.valueOf(resultList.get(i).get("supCompany"));

supName2 = "";

resultList.get(cargoFlag).put("cargoRowSpan", cargoRowSpan);

cargoFlag = i;

cargoRowSpan = 1;

cargoName1 = String.valueOf(resultList.get(i).get("cargobillCode"));

cargoName2 = "";

}

} else if (i == tiefaRowSpan) {

resultList.get(logFlag).put("logRowSpan", logRowSpan);

logFlag = i;

logRowSpan = 1;

logName1 = String.valueOf(resultList.get(i).get("logCompany"));

logName2 = "";

resultList.get(supFlag).put("supRowSpan", supRowSpan);

supFlag = i;

supRowSpan = 1;

supName1 = String.valueOf(resultList.get(i).get("supCompany"));

supName2 = "";

resultList.get(cargoFlag).put("cargoRowSpan", cargoRowSpan);

cargoFlag = i;

cargoRowSpan = 1;

cargoName1 = String.valueOf(resultList.get(i).get("cargobillCode"));

cargoName2 = "";

}

}

resultList.get(logFlag).put("logRowSpan", logRowSpan);

resultList.get(supFlag).put("supRowSpan", supRowSpan);

resultList.get(cargoFlag).put("cargoRowSpan", cargoRowSpan);



##js代碼：



"ordering" : false,

// 按照最新下發的訂單，訂單編碼是升序的排列順序

// order: [[ 5, "desc" ]],

columnDefs: [{

targets: [0,1,2,3], //第1，2，3列

createdCell: function (td, cellData, rowData, row, col) {

var rowspan = 1;

if(col == 0){

rowspan = rowData.planRowSpan;

}

if(col == 1){

rowspan = rowData.logRowSpan;

}

if(col == 2){

rowspan = rowData.supRowSpan;

}

if(col == 3){

rowspan = rowData.cargoRowSpan;

}

if (rowspan > 1) {

$(td).attr('rowspan', rowspan)

}

if (rowspan == 0) {

$(td).remove();

}

}

}],

第四篇文章 datatables 分多行合併單元格：http://blog.sina.com.cn/s/blog_b92442710102wfhu.html

function Deployment_map_DataTable2() {    //datatables的數據請求
    //重繪
    if ( $.fn.dataTable.isDataTable( '#Deployment_point_datatables1bottom' ) ) {
       var table1 = $('#Deployment_point_datatables1bottom').DataTable();
       table1.destroy();
      $('#Deployment_point_datatables1bottom').empty();
       $('#Deployment_point_datatables1bottom').after(' ');
       console.log(3);
    }
    //重繪
    if ( $.fn.dataTable.isDataTable( '#Deployment_point_datatables2bottom' ) ) {
       var table2 = $('#Deployment_point_datatables2bottom').DataTable();
       table2.destroy();
      $('#Deployment_point_datatables2bottom').empty();
       console.log(4);
    }
    var dataSet=[
       ['2','東小口鎮','256','大望村','300'],
       ['2','東小口鎮','256','大望村','300'],
       ['2','東小口鎮','256','大望村','300'],
       ['3','東小口鎮','256','大望村','300'],
       ['3','東小口鎮','256','大望村','300'],
       ['3','東小口鎮','256','大望村','300'],
    ]
    var t = $('#Deployment_point_datatables2bottom').DataTable( {
          "bAutoWidth":false,
          "processing": true,
          "bProcessing": true,
          "searching":false,
          "oLanguage" :{
                 "sLengthMenu": "每頁顯示 _MENU_ 條",
                 "sZeroRecords": "抱歉， 沒有找到",
                 "sInfo": "從 _START_ 到 _END_ /共 _TOTAL_ 條數據",
                 "sInfoEmpty": "沒有數據",
                 "sInfoFiltered": "(從 _MAX_ 條數據中檢索)",
                 "sZeroRecords": "沒有檢索到數據",
                  "sSearch": "搜索",
                 "oPaginate": {
                 "sFirst": "首頁",
                 "sPrevious": "前一頁",
                 "sNext": "後一頁",
                 "sLast": "尾頁"
            }
         },
          "scrollY": "300px",
         "scrollCollapse": "true",
          "paging": "false",
         "lengthMenu": [[10, 25, 50, -1], [10, 25, 50, "All"]],
          "data": dataSet,
          rowsGroup: [
              0,
              1,
              2
           ],
           "columns": [
              { "title": "排名" },
              { "title": "名稱" },
              { "title": "PM2.5" },
              { "title": "區域監點" },
              { "title": "PM2.5" }
           ]
       } );
};

第五篇：

我的需求與這種相似都需要多列的單元格合併並且比這種稍微複雜一列合併一個單元格後還得分兩列

然後貼上代碼吧。

首先是模擬的數據。

    sDom: '"top"i',
    pageLength: 6,//每頁顯示的條數
    autoWidth: false,
    destroy: true,
    info: true,
    scrollX:true, //橫向滾動條
    columns: [
        {"data": null,     title: "序號",     "width": "8%"},
        {"data": "id",     visible:false},
        {"data": "name", title: "一級流程", "width": "15%"},
        {"data": "comp",   title: "末級流程", "width": "15%"},
        {"data": "Pjtime",title: "控制點編號",   "width": "15%"},
        {"data": "Tjtime",title: "控制點描述",   "width": "15%"},
        {"data": "main",title: "評價要點",   "width": "40%"},
        {"data": "mode",title: "測試方式",   "width": "15%"},
        {"data": "choose",title: "是否存在缺陷",   "width": "15%"},
        {"data": "proof",title: "佐證",   "width": "15%"},
        {"data": "details",title: "缺陷詳情",   "width": "15%"}
    ],

    "fnDrawCallback": function () {
        this.api().column(0).nodes().each(function (cell, i) {
            cell.innerHTML = i + 1;
        });
    },
    "columnDefs": [{     //重要的部分
        targets: [2,3], //要合併的列數（第1，2，3列）
        createdCell: function (td, cellData, rowData, row, col) { //重要的操作可以合併列的代碼
            var rowspan = rowData.merge;//這裏主要是利用了模擬數據中的merge來控制
            if (rowspan > 1) { //這裏做的判斷。相信大家也能看懂的。
                $(td).attr('rowspan', rowspan)
            }
            if (rowspan == 0) {
                $(td).remove();
            }
        },
        "data": "culture_title",
        "render": function (data, type, full) {
            return "<span title='" + data + "'>" + data + "</span>";
        }
    },{
        targets: [7,8,9,10], //第1，2，3列    //這塊是另外一模塊的合併。所以是寫成了對象的形式。
        createdCell: function (td, cellData, rowData, row, col) { //和上面一樣的思想
            var rowspan = rowData.imerge;
            if (rowspan > 1) {
                $(td).attr('rowspan', rowspan)
            }
            if (rowspan == 0) {
                $(td).remove();
            }
        }
    }]

});

最後來說下數據中的merge和imerge代表的意思

merge是第一次要合併的數據值 3.是代表的要合併的行數、如果要合併的話。就在具體的行數上寫合併的行數。例如：3.不合並的寫1.但在合併的行後邊要寫上0.也就是不合並的意思。

imerge也是這樣的思想。

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