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使用LuckySheet实现线上Excel与导入导出

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2023-12-01

使用LuckySheet实现线上Excel与导入导出

一 Java使用LuckySheet实现线上Excel

首先准备好相关的静态资源内容

再定义一个div,当做线上Excel的容器

然后定义luckysheet的属性option,创建对象: luckysheet.create(options)

<!DOCTYPE html >
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <link rel="stylesheet" href="/css/plugins.css">
    <link rel="stylesheet" href="/css/pluginsCss.css">
    <link rel="stylesheet" href="/css/iconfont.css">
    <link rel="stylesheet" href="/css/luckysheet.css">
    <link rel="stylesheet" href="/bootstrap/css/bootstrap.css">

    <script src="/plugins/js/jquery.min.js"></script>
    <script src="/bootstrap/js/bootstrap.js"></script>

    <script type="text/javascript" src="/js/plugin.js" ></script>
    <script type="text/javascript" src="/js/luckysheet.umd.js" ></script>
    <script type="text/javascript" src="/js/xlsx.full.min.js"></script>
    <script type="text/javascript" src="/js/luckyexcel.umd.js"></script>


</head>
<style>
    #luckysheet {
        margin:0px;
        padding:0px;
        position:absolute;
        width:100%;
        height:95%;
        left: 0px;
        top: 40px;
    }
</style>
<body>
    <div id="container">
        <input id="importExcel_input" type="file" name="file" placeholder="導入" />
        <div id="luckysheet" ></div>
    </div>

</body>

<script src="/js/sheet/demoFeature.js"></script>
<script src="/js/sheet/sheetFormula.js"></script>
<script src="/js/sheet/sheetCell.js"></script>
<script src="/js/sheet/sheetConditionFormat.js"></script>
<script src="/js/sheet/sheetTable.js"></script>
<script src="/js/sheet/sheetComment.js"></script>
<script src="/js/sheet/sheetPivotTableData.js"></script>
<script src="/js/sheet/sheetPivotTable.js"></script>
<script src="/js/sheet/sheetSparkline.js"></script>
<script src="/js/sheet/sheetChart.js"></script>
<script src="/js/sheet/sheetPicture.js"></script>
<script src="/js/sheet/sheetDataVerification.js"></script>


<script th:inline="javascript">
    //配置项
    var options = {
        container: 'luckysheet', //luckysheet为容器id
        column: 20, //空表格默认的列数量
        row: 20, //空表格默认的行数据量
        // title:"title001",
        lang: 'zh', // 设定表格语言
        allowEdit: true,//作用:是否允许前台编辑
        // allowUpdate: true,
        allowCopy: true, //是否允许拷贝
        showtoolbar: true, //是否第二列显示工具栏
        showinfobar: true, //是否显示顶部名称栏
        showsheetbar: true, //是否显示底部表格名称区域
        showstatisticBar: true, //是否显示底部计数栏
        pointEdit: false, //是否是编辑器插入表格模式
        pointEditUpdate: null, //编辑器表格更新函数
        // myFolderUrl: "/",//作用:左上角<返回按钮的链接
        // forceCalculation: false,
        // loadUrl: "downData",
        // updateUrl: "ws://localhost:8080/UserService"
        functionButton: '<button class="btn btn-primary" style=" padding:3px 6px; font-size: 16px;width: 100px;height: 27px; margin-right: 50px;" οnclick="downExcelData(this)">導出</button>',

    }
    $(function () {
        luckysheet.create(options)
    })

    //监听文件上传
    var input = document.querySelector('input');
    input.addEventListener('change', importExcel);

    /**
     * 获取excel数据加載到頁面上
     * @param event
     */
    function importExcel(event) {

        var file = event.target.files[0];
        var fileName = file.name;
        fileName = fileName + "";
        //將文件加載到頁面上
        LuckyExcel.transformExcelToLucky(file, function(exportJson, luckysheetfile){

            if(exportJson.sheets==null || exportJson.sheets.length==0){
                alert("Failed to read the content of the excel file, currently does not support xls files!");
                return;
            }
            console.log(exportJson, luckysheetfile);
            window.luckysheet.destroy();

            window.luckysheet.create({
                container: 'luckysheet', //luckysheet is the container id
                showinfobar:false,
                lang: 'zh', // 设定表格语言
                allowEdit: true,//作用:是否允许前台编辑
                // allowUpdate: true,
                allowCopy: true, //是否允许拷贝
                showtoolbar: true, //是否第二列显示工具栏
                showinfobar: true, //是否显示顶部名称栏
                showsheetbar: true, //是否显示底部表格名称区域
                showstatisticBar: true, //是否显示底部计数栏
                pointEdit: false, //是否是编辑器插入表格模式
                pointEditUpdate: null, //编辑器表格更新函数
                data:exportJson.sheets,
                title:exportJson.info.name,
                userInfo:exportJson.info.name.creator,
                functionButton: '<button id="" class="btn btn-primary" style=" padding:3px 6px; font-size: 16px;width: 100px;height: 27px; margin-right: 85px;" οnclick="downExcelData()">導出</button>',

            });
        });

    }

    /**
     * 將在線Excel下載到本地
     */
    function downExcelData() {
        var fileName = $("#luckysheet_info_detail_input").val()
        fileName = (fileName + "").trim();
        $.post("/excel/downfile", {
            exceldatas: JSON.stringify(luckysheet.getAllSheets()),
            fileName: fileName
        }, function (data) {
            //console.log("data = " + data)
        });
    }


</script>
</html>

二 LuckySheet和POI实现文件导入导出

将线上的Excel通过POI报保存为本地文件,首先就是要明确lucksheet的重要属性,然后将各属性的内容通过POI进行填充。

package com.lmc.excel.util;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.HorizontalAlignment;
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.*;

import java.awt.*;
import java.io.*;
import java.util.HashMap;
import java.util.Map;

/**
 * @ClassName: ExcelUtils
 * @author: Leemon
 * @Description: TODO
 * @date: 2021/6/9 18:06
 * @version: 1.0
 */
public class ExcelUtils {
    
    /***
     * 基于POI解析 从0开始导出xlsx文件,
     * @param title 表格名
     * @param newFileDir 保存的文件夹名
     * @param newFileName 保存的文件名
     * @param excelData luckysheet 表格数据
     */
    public static void exportLuckySheetXlsxByPOI(String title, String newFileDir, String newFileName, String excelData) {
        //去除luckysheet中 &#xA 的换行
        excelData = excelData.replace("&#xA;", "\\r\\n");
        //获取luckysheet数据  sheet:[{name:sheet1, ...},{}, ...]
        JSONArray jsonArray = (JSONArray) JSONObject.parse(excelData);
        //创建操作Excel的XSSFWorkbook对象
        XSSFWorkbook excel = new XSSFWorkbook();
        for (int sheetIndex = 0; sheetIndex < jsonArray.size(); sheetIndex++) {
            //获取sheet
            JSONObject jsonObject = (JSONObject) jsonArray.get(sheetIndex);
            JSONArray celldataObjectList = jsonObject.getJSONArray("celldata");//获取所有单元格(坐标,内容,字体类型,字体大小...)
            JSONArray rowObjectList = jsonObject.getJSONArray("visibledatarow");
            JSONArray colObjectList = jsonObject.getJSONArray("visibledatacolumn");
            JSONArray dataObjectList = jsonObject.getJSONArray("data");//获取所有单元格,与celldata类似(坐标,内容,字体类型,字体大小...)
            JSONObject mergeObject = jsonObject.getJSONObject("config").getJSONObject("merge");//合并单元格
            JSONObject columnlenObject = jsonObject.getJSONObject("config").getJSONObject("columnlen");//表格列宽
            JSONObject rowlenObject = jsonObject.getJSONObject("config").getJSONObject("rowlen");//表格行高
            JSONArray borderInfoObjectList = jsonObject.getJSONObject("config").getJSONArray("borderInfo");//边框样式

            //参考:https://blog.csdn.net/jdtugfcg/article/details/84100315
            XSSFCellStyle cellStyle = excel.createCellStyle();
            //创建XSSFSheet对象
            XSSFSheet sheet = excel.createSheet(jsonObject.getString("name"));

            //我们都知道excel是表格,即由一行一行组成的,那么这一行在java类中就是一个XSSFRow对象,我们通过XSSFSheet对象就可以创建XSSFRow对象
            //如:创建表格中的第一行(我们常用来做标题的行)  XSSFRow firstRow = sheet.createRow(0); 注意下标从0开始
            //根据luckysheet创建行列
            //创建行和列
            if (rowObjectList != null && rowObjectList.size() > 0) {
                for (int i = 0; i < rowObjectList.size(); i++) {
                    XSSFRow row = sheet.createRow(i);//创建行
                    try {
                        row.setHeightInPoints(Float.parseFloat(rowlenObject.get(i) + ""));//行高px值
                    } catch (Exception e) {
                        row.setHeightInPoints(20f);//默认行高
                    }

                    if (colObjectList != null && colObjectList.size() > 0) {
                        for (int j = 0; j < colObjectList.size(); j++) {
                            if (columnlenObject != null && columnlenObject.getInteger(j + "") != null) {
                                sheet.setColumnWidth(j, columnlenObject.getInteger(j + "") * 42);//列宽px值
                            }
                            row.createCell(j);//创建列
                        }
                    }
                }
            }

            //设置值,样式
            setCellValue(celldataObjectList, borderInfoObjectList, sheet, excel);

            // 判断路径是否存在
            File dir = new File(newFileDir);
            if (!dir.exists()) {
                dir.mkdirs();
            }
            OutputStream out = null;
            try {
                out = new FileOutputStream(newFileDir + newFileName);

                excel.write(out);

                out.close();

            } catch (FileNotFoundException e) {
                e.printStackTrace();

            } catch (IOException e) {
                e.printStackTrace();

            }
        }


    }


    /**
     * 合并单元格与填充单元格颜色
     * @param jsonObjectValue
     * @param sheet
     * @param style
     */
    private static void setMergeAndColorByObject(JSONObject jsonObjectValue, XSSFSheet sheet, XSSFCellStyle style) {
        JSONObject mergeObject = (JSONObject) jsonObjectValue.get("mc");
        //合併單元格
        if (mergeObject != null) {
            int r = (int) (mergeObject.get("r"));
            int c = (int) (mergeObject.get("c"));
            if ((mergeObject.get("rs") != null && (mergeObject.get("cs") != null))) {
                int rs = (int) (mergeObject.get("rs"));
                int cs = (int) (mergeObject.get("cs"));
                CellRangeAddress region = new CellRangeAddress(r, r + rs - 1, (short) (c), (short) (c + cs - 1));
                sheet.addMergedRegion(region);
            }
        }
        //填充顏色
        if (jsonObjectValue.getString("bg") != null) {
            int bg = Integer.parseInt(jsonObjectValue.getString("bg").replace("#", ""), 16);
            style.setFillPattern(FillPatternType.SOLID_FOREGROUND);    //设置填充方案
            style.setFillForegroundColor(new XSSFColor(new Color(bg)));  //设置填充颜色
        }

    }

    private static void setBorder(JSONArray borderInfoObjectList, XSSFWorkbook workbook, XSSFSheet sheet) {
        //设置边框样式map
        Map<Integer, BorderStyle> bordMap = new HashMap<>();
        bordMap.put(1, BorderStyle.THIN);
        bordMap.put(2, BorderStyle.HAIR);
        bordMap.put(3, BorderStyle.DOTTED);
        bordMap.put(4, BorderStyle.DASHED);
        bordMap.put(5, BorderStyle.DASH_DOT);
        bordMap.put(6, BorderStyle.DASH_DOT_DOT);
        bordMap.put(7, BorderStyle.DOUBLE);
        bordMap.put(8, BorderStyle.MEDIUM);
        bordMap.put(9, BorderStyle.MEDIUM_DASHED);
        bordMap.put(10, BorderStyle.MEDIUM_DASH_DOT);
        bordMap.put(11, BorderStyle.MEDIUM_DASH_DOT_DOT);
        bordMap.put(12, BorderStyle.SLANTED_DASH_DOT);
        bordMap.put(13, BorderStyle.THICK);

        //一定要通过 cell.getCellStyle()  不然的话之前设置的样式会丢失
        //设置边框
        if (borderInfoObjectList != null && borderInfoObjectList.size() > 0) {
            for (int i = 0; i < borderInfoObjectList.size(); i++) {
                JSONObject borderInfoObject = (JSONObject) borderInfoObjectList.get(i);
                if (borderInfoObject.get("rangeType").equals("cell")) {//单个单元格
                    JSONObject borderValueObject = borderInfoObject.getJSONObject("value");

                    JSONObject l = borderValueObject.getJSONObject("l");
                    JSONObject r = borderValueObject.getJSONObject("r");
                    JSONObject t = borderValueObject.getJSONObject("t");
                    JSONObject b = borderValueObject.getJSONObject("b");


                    int row = borderValueObject.getInteger("row_index");
                    int col = borderValueObject.getInteger("col_index");

                    XSSFCell cell = sheet.getRow(row).getCell(col);


                    if (l != null) {
                        cell.getCellStyle().setBorderLeft(bordMap.get((int) l.get("style"))); //左边框
                        int bg = Integer.parseInt(l.getString("color").replace("#", ""), 16);
                        cell.getCellStyle().setLeftBorderColor(new XSSFColor(new Color(bg)));//左边框颜色
                    }
                    if (r != null) {
                        cell.getCellStyle().setBorderRight(bordMap.get((int) r.get("style"))); //右边框
                        int bg = Integer.parseInt(r.getString("color").replace("#", ""), 16);
                        cell.getCellStyle().setRightBorderColor(new XSSFColor(new Color(bg)));//右边框颜色
                    }
                    if (t != null) {
                        cell.getCellStyle().setBorderTop(bordMap.get((int) t.get("style"))); //顶部边框
                        int bg = Integer.parseInt(t.getString("color").replace("#", ""), 16);
                        cell.getCellStyle().setTopBorderColor(new XSSFColor(new Color(bg)));//顶部边框颜色
                    }
                    if (b != null) {
                        cell.getCellStyle().setBorderBottom(bordMap.get((int) b.get("style"))); //底部边框
                        int bg = Integer.parseInt(b.getString("color").replace("#", ""), 16);
                        cell.getCellStyle().setBottomBorderColor(new XSSFColor(new Color(bg)));//底部边框颜色
                    }
                } else if (borderInfoObject.get("rangeType").equals("range")) {//选区
                    int bg_ = Integer.parseInt(borderInfoObject.getString("color").replace("#", ""), 16);
                    int style_ = borderInfoObject.getInteger("style");

                    JSONObject rangObject = (JSONObject) ((JSONArray) (borderInfoObject.get("range"))).get(0);

                    JSONArray rowList = rangObject.getJSONArray("row");
                    JSONArray columnList = rangObject.getJSONArray("column");


                    for (int row_ = rowList.getInteger(0); row_ < rowList.getInteger(rowList.size() - 1) + 1; row_++) {
                        for (int col_ = columnList.getInteger(0); col_ < columnList.getInteger(columnList.size() - 1) + 1; col_++) {
                            XSSFCell cell = sheet.getRow(row_).getCell(col_);

                            cell.getCellStyle().setBorderLeft(bordMap.get(style_)); //左边框
                            cell.getCellStyle().setLeftBorderColor(new XSSFColor(new Color(bg_)));//左边框颜色
                            cell.getCellStyle().setBorderRight(bordMap.get(style_)); //右边框
                            cell.getCellStyle().setRightBorderColor(new XSSFColor(new Color(bg_)));//右边框颜色
                            cell.getCellStyle().setBorderTop(bordMap.get(style_)); //顶部边框
                            cell.getCellStyle().setTopBorderColor(new XSSFColor(new Color(bg_)));//顶部边框颜色
                            cell.getCellStyle().setBorderBottom(bordMap.get(style_)); //底部边框
                            cell.getCellStyle().setBottomBorderColor(new XSSFColor(new Color(bg_)));//底部边框颜色 }
                        }
                    }


                }
            }
        }
    }

    /**
     * 設置值和樣式
     * @param jsonObjectList
     * @param borderInfoObjectList
     * @param sheet
     * @param workbook
     */
    private static void setCellValue(JSONArray jsonObjectList, JSONArray borderInfoObjectList, XSSFSheet
            sheet, XSSFWorkbook workbook) {
        //设置字体大小和颜色
        Map<Integer, String> fontMap = new HashMap<>();
        fontMap.put(-1, "Arial");
        fontMap.put(0, "Times New Roman");
        fontMap.put(1, "Arial");
        fontMap.put(2, "Tahoma");
        fontMap.put(3, "Verdana");
        fontMap.put(4, "微软雅黑");
        fontMap.put(5, "宋体");
        fontMap.put(6, "黑体");
        fontMap.put(7, "楷体");
        fontMap.put(8, "仿宋");
        fontMap.put(9, "新宋体");
        fontMap.put(10, "华文新魏");
        fontMap.put(11, "华文行楷");
        fontMap.put(12, "华文隶书");

        //遍歷每一個單元格(先遍歷行,再遍歷列)
        for (int index = 0; index < jsonObjectList.size(); index++) {
            XSSFCellStyle style = workbook.createCellStyle();//样式
            XSSFFont font = workbook.createFont();//字体样式
            //獲取單元格
            JSONObject object = jsonObjectList.getJSONObject(index);
            //str_ = 行坐標+列坐標=內容
            String str_ = (int) object.get("r") + "_" + object.get("c") + "=" + ((JSONObject) object.get("v")).get("v") + "\n";
            JSONObject jsonObjectValue = ((JSONObject) object.get("v"));//獲取單元格樣式
            //單元格內容
            String value = "";
            if (jsonObjectValue != null && jsonObjectValue.get("v") != null) {
                value = jsonObjectValue.getString("v");
            }

            if (sheet.getRow((int) object.get("r")) != null && sheet.getRow((int) object.get("r")).getCell((int) object.get("c")) != null) {
                XSSFCell cell = sheet.getRow((int) object.get("r")).getCell((int) object.get("c"));
                //設置公式 注意:luckysheet与Java的公式可能存在不匹配问题,例如js的Int(data)
                if (jsonObjectValue != null && jsonObjectValue.get("f") != null) {//如果有公式,设置公式
                    value = jsonObjectValue.getString("f");
                    cell.setCellFormula(value.substring(1,value.length()));//不需要=符号,例:INT(12.3)
                }
                //合并单元格与填充单元格颜色
                setMergeAndColorByObject(jsonObjectValue, sheet, style);
                //填充值
                cell.setCellValue(value);
                XSSFRow row = sheet.getRow((int) object.get("r"));

                //设置垂直水平对齐方式
                int vt = jsonObjectValue.getInteger("vt") == null ? 1 : jsonObjectValue.getInteger("vt");//垂直对齐	 0 中间、1 上、2下
                int ht = jsonObjectValue.getInteger("ht") == null ? 1 : jsonObjectValue.getInteger("ht");//0 居中、1 左、2右
                switch (vt) {
                    case 0:
                        style.setVerticalAlignment(VerticalAlignment.CENTER);
                        break;
                    case 1:
                        style.setVerticalAlignment(VerticalAlignment.TOP);
                        break;
                    case 2:
                        style.setVerticalAlignment(VerticalAlignment.BOTTOM);
                        break;
                }
                switch (ht) {
                    case 0:
                        style.setAlignment(HorizontalAlignment.CENTER);
                        break;
                    case 1:
                        style.setAlignment(HorizontalAlignment.LEFT);
                        break;
                    case 2:
                        style.setAlignment(HorizontalAlignment.RIGHT);
                        break;
                }

                //设置合并单元格的样式有问题
                String ff = jsonObjectValue.getString("ff");//0 Times New Roman、 1 Arial、2 Tahoma 、3 Verdana、4 微软雅黑、5 宋体(Song)、6 黑体(ST Heiti)、7 楷体(ST Kaiti)、 8 仿宋(ST FangSong)、9 新宋体(ST Song)、10 华文新魏、11 华文行楷、12 华文隶书
                int fs = jsonObjectValue.getInteger("fs") == null ? 14 : jsonObjectValue.getInteger("fs");//字体大小
                int bl = jsonObjectValue.getInteger("bl") == null ? 0 : jsonObjectValue.getInteger("bl");//粗体	0 常规 、 1加粗
                int it = jsonObjectValue.getInteger("it") == null ? 0 : jsonObjectValue.getInteger("it");//斜体	0 常规 、 1 斜体
                String fc = jsonObjectValue.getString("fc") == null ? "" : jsonObjectValue.getString("fc");//字体颜色
//                font.setFontName(fontMap.get(ff));//字体名字
                //字體顏色
                if (fc.length() > 0) {
                    font.setColor(new XSSFColor(new Color(Integer.parseInt(fc.replace("#", ""), 16))));
                }
                font.setFontName(ff);//字体名字
                font.setFontHeightInPoints((short) fs);//字体大小
                //是否粗體
                if (bl == 1) {
                    font.setBold(true);//粗体显示
                }
                //是否斜體
                font.setItalic(it == 1 ? true : false);//斜体

                style.setFont(font);
                style.setWrapText(true);//设置自动换行
                cell.setCellStyle(style);

            } else {
                System.out.println("错误的=" + index + ">>>" + str_);
            }

        }
        //设置边框
        setBorder(borderInfoObjectList, workbook, sheet);

    }

}

再通过以下的ExcelController,就可以实现线上Luckysheet与本地的导入导出(导入与下载)

/**
     * 將在線Excel導出下載
     * @param exceldatas excel数据
     * @param fileName 文件名称
     * @return
     */
    @PostMapping("/downfile")
    @ResponseBody
    public String downData(String exceldatas, String fileName) {
        String fileDirNew = "D:/data/";//保存文件夹名
        String fileNameNew = "test" + "_" + PublicUtils.getNowDataByFormat("yyyyMMdd_HHmmss") + ".xlsx";//保存的文件名

        ExcelUtils.exportLuckySheetXlsxByPOI("", fileDirNew,fileName,exceldatas);
        return fileDirNew+fileName;

    }

相关代码与资源,在我的gitee中模块 tools-excel 中可见 : gitee仓库地址 https://gitee.com/lmchh/lmc-tools

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