Export2Excel实现多级表头以及多个sheet页

2023-10-18 18:49
文章标签 实现 表头 多个 多级 sheet export2excel

本文主要是介绍Export2Excel实现多级表头以及多个sheet页，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

安装xlsx-style:npm install --save xlsx-style，在 \node_modules\xlsx-style\dist\cpexcel.js找到 var cpt = require(’./cpt’ + ‘able’); 并改成 var cpt = cptable;

将Export2Excel.js文件修改：

import { saveAs } from "file-saver";
// import XLSX from "xlsx";
import XLSX from "xlsx-style";function generateArray(table) {var out = [];var rows = table.querySelectorAll("tr");var ranges = [];for (var R = 0; R < rows.length; ++R) {var outRow = [];var row = rows[R];var columns = row.querySelectorAll("td");for (var C = 0; C < columns.length; ++C) {var cell = columns[C];var colspan = cell.getAttribute("colspan");var rowspan = cell.getAttribute("rowspan");var cellValue = cell.innerText;if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;//Skip rangesranges.forEach(function (range) {if (R >= range.s.r &&R <= range.e.r &&outRow.length >= range.s.c &&outRow.length <= range.e.c) {for (var i = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null);}});//Handle Row Spanif (rowspan || colspan) {rowspan = rowspan || 1;colspan = colspan || 1;ranges.push({s: {r: R,c: outRow.length},e: {r: R + rowspan - 1,c: outRow.length + colspan - 1}});}//Handle ValueoutRow.push(cellValue !== "" ? cellValue : null);//Handle Colspanif (colspan)for (var k = 0; k < colspan - 1; ++k) outRow.push(null);}out.push(outRow);}return [out, ranges];
}function datenum(v, date1904) {if (date1904) v += 1462;var epoch = Date.parse(v);return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
}function sheet_from_array_of_arrays(data, opts) {var ws = {};var range = {s: {c: 10000000,r: 10000000},e: {c: 0,r: 0}};for (var R = 0; R != data.length; ++R) {for (var C = 0; C != data[R].length; ++C) {if (range.s.r > R) range.s.r = R;if (range.s.c > C) range.s.c = C;if (range.e.r < R) range.e.r = R;if (range.e.c < C) range.e.c = C;var cell = {v: data[R][C]};// 如果单元格所在的值为空，让其值为“——”，否则下面设置的边框对其不生效if (cell.v == null) {cell.v = "——";}var cell_ref = XLSX.utils.encode_cell({c: C,r: R});if (typeof cell.v === "number") cell.t = "n";else if (typeof cell.v === "boolean") cell.t = "b";else if (cell.v instanceof Date) {cell.t = "n";cell.z = XLSX.SSF._table[14];cell.v = datenum(cell.v);} else cell.t = "s";ws[cell_ref] = cell;}}if (range.s.c < 10000000) ws["!ref"] = XLSX.utils.encode_range(range);return ws;
}function Workbook() {if (!(this instanceof Workbook)) return new Workbook();this.SheetNames = [];this.Sheets = {};
}function s2ab(s) {var buf = new ArrayBuffer(s.length);var view = new Uint8Array(buf);for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xff;return buf;
}export function export_table_to_excel(id) {var theTable = document.getElementById(id);var oo = generateArray(theTable);var ranges = oo[1];/* original data */var data = oo[0];var ws_name = "SheetJS";var wb = new Workbook(),ws = sheet_from_array_of_arrays(data);/* add ranges to worksheet */// ws['!cols'] = ['apple', 'banan'];ws["!merges"] = ranges;/* add worksheet to workbook */wb.SheetNames.push(ws_name);wb.Sheets[ws_name] = ws;var wbout = XLSX.write(wb, {bookType: "xlsx",bookSST: false,type: "binary"});saveAs(new Blob([s2ab(wbout)], {type: "application/octet-stream"}),"test.xlsx");
}
// 主要修改内容在这里
export function export_json_to_excel({title, // 新增的参数，表格标题multiHeader = [],header,data,filename,merges = [],autoWidth = true,bookType = "xlsx"
} = {}) {/* original data */filename = filename || "excel-list";data = [...data];data.unshift(header);for (let i = multiHeader.length - 1; i > -1; i--) {data.unshift(multiHeader[i]);}data.unshift(title); // 表格标题var ws_name = "SheetJS";var wb = new Workbook(),ws = sheet_from_array_of_arrays(data);if (merges.length > 0) {if (!ws["!merges"]) ws["!merges"] = [];merges.forEach(item => {ws["!merges"].push(XLSX.utils.decode_range(item));});}// 设置单元格宽度if (autoWidth) {/*设置worksheet每列的最大宽度*/const colWidth = data.map(row =>row.map(val => {/*先判断是否为null/undefined*/if (val == null || val == undefined) {return {wch: 10};} else if (val.toString().charCodeAt(0) > 255) {/*再判断是否为中文*/return {wch: val.toString().length * 2};} else {return {wch: val.toString().length * 1.5};}}));/*以主表第二行为初始值，因为我的第一行是表格标题，会比较长，所以以主表第二行为初始值*/let result = colWidth[1];for (let i = 1; i < colWidth.length; i++) {for (let j = 0; j < colWidth[i].length; j++) {if (result[j]["wch"] < colWidth[i][j]["wch"]) {result[j]["wch"] = colWidth[i][j]["wch"];}}}ws["!cols"] = result;}/* add worksheet to workbook */wb.SheetNames.push(ws_name);wb.Sheets[ws_name] = ws;var dataInfo = wb.Sheets[wb.SheetNames[0]];// 设置单元格框线const borderAll = {top: {style: "thin"},bottom: {style: "thin"},left: {style: "thin"},right: {style: "thin"}};// 给所有单元格加上边框，内容居中，字体，字号，标题表头特殊格式部分后面替换for (var i in dataInfo) {if (i == "!ref" ||i == "!merges" ||i == "!cols" ||i == "!rows" ||i == "A1") { } else {dataInfo[i + ""].s = {border: borderAll,alignment: {horizontal: "center",vertical: "center"},font: {name: "微软雅黑",sz: 10}};}}// 设置表格样式const arrabc = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]// 给标题、表格描述信息、表头等部分加上特殊格式arrabc.some(function (v) {for (let j = 1; j < multiHeader.length + 3; j++) {const _v = v + jif (dataInfo[_v]) {dataInfo[_v].s = {};// 标题部分A1-Z1if (j == 1) {dataInfo[v + j].s = {font: {name: "微软雅黑",sz: 12,color: {rgb: "000000"},bold: true,italic: false,underline: false},alignment: {horizontal: "center",vertical: "center"}};} else {// 表头部分,根据表头特殊格式设置if (multiHeader.length == 0) {// multiHeader.length = 0 时表头没有合并单元格，表头只占1行A2-Z2const fv = v + (multiHeader.length + 2)dataInfo[fv].s = {border: borderAll,font: {name: "微软雅黑",sz: 11,bold: true},alignment: {horizontal: "center",vertical: "center"},fill: {fgColor: {rgb: "f0f0f0"},},}} else if (multiHeader.length == 1) {// multiHeader.length = 0 时表头有合并单元格，表头只占2行A2-Z2，A3-Z3，这是没有描述信息只有表头合并的dataInfo[v + j].s = {border: borderAll,font: {name: "微软雅黑",sz: 11,},alignment: {horizontal: "center",vertical: "center"},fill: {fgColor: {rgb: "f0f0f0"}},}} else {// multiHeader.length = 0 时表头有合并单元格，表头多行dataInfo[v + j].s = {border: borderAll,font: {name: "微软雅黑",sz: 9,},alignment: {horizontal: "left",vertical: "center"}}}}// multiHeader.length + 2 是表头的最后1行dataInfo[v + (multiHeader.length + 2)].s = {border: borderAll,font: {name: "微软雅黑",sz: 10,},alignment: {horizontal: "center",vertical: "center"},fill: {fgColor: {rgb: "f0f0f0"}},}}}});var wbout = XLSX.write(wb, {bookType: bookType,bookSST: false,type: "binary"});saveAs(new Blob([s2ab(wbout)], {type: "application/octet-stream"}),`${filename}.${bookType}`);
}export function export_json_to_excelMul({title, // 新增的参数，表格标题multiHeader = [],header,data,merges = [],autoWidth = true,ws_name,
} = {},wb,si) {/* original data */data = [...data];data.unshift(header);for (let i = multiHeader.length - 1; i > -1; i--) {data.unshift(multiHeader[i]);}data.unshift(title); // 表格标题ws_name = ws_name||"SheetJS";var ws = sheet_from_array_of_arrays(data);if (merges.length > 0) {if (!ws["!merges"]) ws["!merges"] = [];merges.forEach(item => {ws["!merges"].push(XLSX.utils.decode_range(item));});}// 设置单元格宽度if (autoWidth) {/*设置worksheet每列的最大宽度*/const colWidth = data.map(row =>{return row.map(val => {/*先判断是否为null/undefined*/if (val == null || val == undefined) {return {wch: 10};} else if (val.toString().charCodeAt(0) > 255) {/*再判断是否为中文*/return {wch: val.toString().length * 2};} else {return {wch: val.toString().length * 1.5};}})});/*以主表第二行为初始值，因为我的第一行是表格标题，会比较长，所以以主表第二行为初始值*/let result = colWidth[1];for (let i = 1; i < colWidth.length; i++) {for (let j = 0; j < colWidth[i].length; j++) {if (result[j]["wch"] < colWidth[i][j]["wch"]) {result[j]["wch"] = colWidth[i][j]["wch"];}}}ws["!cols"] = result;}/* add worksheet to workbook */wb.SheetNames.push(ws_name);wb.Sheets[ws_name] = ws;var dataInfo = wb.Sheets[wb.SheetNames[si]];// 设置单元格框线const borderAll = {top: {style: "thin"},bottom: {style: "thin"},left: {style: "thin"},right: {style: "thin"}};// 给所有单元格加上边框，内容居中，字体，字号，标题表头特殊格式部分后面替换for (var i in dataInfo) {if (i == "!ref" ||i == "!merges" ||i == "!cols" ||i == "!rows" ||i == "A1") { } else {dataInfo[i + ""].s = {border: borderAll,alignment: {horizontal: "center",vertical: "center"},font: {name: "微软雅黑",sz: 10}};}}// 设置表格样式const arrabc = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]// 给标题、表格描述信息、表头等部分加上特殊格式arrabc.some(function (v) {for (let j = 1; j < multiHeader.length + 3; j++) {const _v = v + jif (dataInfo[_v]) {dataInfo[_v].s = {};// 标题部分A1-Z1if (j == 1) {dataInfo[v + j].s = {font: {name: "微软雅黑",sz: 12,color: {rgb: "000000"},bold: true,italic: false,underline: false},alignment: {horizontal: "center",vertical: "center"}};} else {// 表头部分,根据表头特殊格式设置if (multiHeader.length == 0) {// multiHeader.length = 0 时表头没有合并单元格，表头只占1行A2-Z2const fv = v + (multiHeader.length + 2)dataInfo[fv].s = {border: borderAll,font: {name: "微软雅黑",sz: 11,bold: true},alignment: {horizontal: "center",vertical: "center"},fill: {fgColor: {rgb: "f0f0f0"},},}} else if (multiHeader.length == 1) {// multiHeader.length = 0 时表头有合并单元格，表头只占2行A2-Z2，A3-Z3，这是没有描述信息只有表头合并的dataInfo[v + j].s = {border: borderAll,font: {name: "微软雅黑",sz: 11,},alignment: {horizontal: "center",vertical: "center"},fill: {fgColor: {rgb: "f0f0f0"}},}} else {// multiHeader.length = 0 时表头有合并单元格，表头多行dataInfo[v + j].s = {border: borderAll,font: {name: "微软雅黑",sz: 9,},alignment: {horizontal: "left",vertical: "center"}}}}// multiHeader.length + 2 是表头的最后1行dataInfo[v + (multiHeader.length + 2)].s = {border: borderAll,font: {name: "微软雅黑",sz: 10,},alignment: {horizontal: "center",vertical: "center"},fill: {fgColor: {rgb: "f0f0f0"}},}}}});
}export function export_json_to_excelMultiSheet(sheetList,filename,bookType = "xlsx"){var wb = new Workbook()filename = filename || "excel-list";sheetList.forEach((s,si)=>{export_json_to_excelMul(s,wb,si)})var wbout = XLSX.write(wb, {bookType: bookType,bookSST: false,type: "binary"});saveAs(new Blob([s2ab(wbout)], {type: "application/octet-stream"}),`${filename}.${bookType}`);
}

使用：

exportHandle(){let filterVal = ['sqrmc','bmmc','kqxlmc','sqly','wcdd','wcts','ksrq','jsrq']let list = [{title:['考勤明细表'],merges:['A1:H1','A2:C2','D2:H2'],header: ['姓名','部门','类型','申请理由','外出地点','合计天数','开始时间','结束时间'],multiHeader:[['基础信息','','','其他信息','','','','']],data:this.formatJson(filterVal,[{bmmc:'123'}]),ws_name:'sheet1'},{title:['考勤明细表2'],merges:['A1:H1'],header: ['姓名2','部门2','类型','申请理由','外出地点','合计天数','开始时间','结束时间'],data:this.formatJson(filterVal,[{sqrmc:'mm',bmmc:'222',kqxlmc:'111'}]),ws_name:'sheet2'}]import("@/vendor/Export2Excel").then((excel) => {excel.export_json_to_excelMultiSheet(list,'multest');});},formatJson(filterVal,jsonData){return jsonData.map(v=>{return filterVal.map(j=>{return v[j]})})},

 

这篇关于Export2Excel实现多级表头以及多个sheet页的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/234480。

相关文章

Golang实现基于角色的访问控制(RBAC)的项目实践

Golang实现基于角色的访问控制(RBAC)的项目实践

《Golang实现基于角色的访问控制(RBAC)的项目实践》基于角色的访问控制（RBAC）是一种安全机制,通过角色来管理用户权限,本文介绍了一种可落地、易扩展的GolangRBAC实现方案,具有一定... 目录一、RBAC 核心模型设计二、RBAC 核心逻辑实现RBAC 管理器定义基础 CRUD：添加用户
阅读更多...
Python使用Spire.PDF实现为PDF添加水印

Python使用Spire.PDF实现为PDF添加水印

《Python使用Spire.PDF实现为PDF添加水印》在现代数字化办公环境中,PDF已成为一种广泛使用的文件格式,尤其是在需要保持文档格式时,下面我们就来看看如何使用Python为PDF文件添加水... 目录一、准备工作二、实现步骤1. 导入必要的库2. 创建 PdfDocument 对象3. 设置水印
阅读更多...
python在word中插入目录和更新目录实现方式

python在word中插入目录和更新目录实现方式

《python在word中插入目录和更新目录实现方式》文章主要介绍了如何在Word文档中插入和更新目录,并提供了具体的代码示例,插入目录时,需要使用`TablesOfContents`对象,并设置使用... 目录1、插入目录2、更新目录总结1、插入目录需要用到对象：TablesOfContents目录的
阅读更多...
PostgreSQ数据库实现在Windows上异地自动备份指南的详细教程

PostgreSQ数据库实现在Windows上异地自动备份指南的详细教程

《PostgreSQ数据库实现在Windows上异地自动备份指南的详细教程》这篇文章主要为大家详细介绍了如何在Windows系统上实现PostgreSQL数据库的异地自动备份,文中的示例代码讲解详细,... 目录前期准备实现步骤步骤一：创建备份脚本步骤二：配置免密登录（可选但推荐）步骤三：设置任务计划程序步
阅读更多...
基于C++的UDP网络通信系统设计与实现详解

基于C++的UDP网络通信系统设计与实现详解

《基于C++的UDP网络通信系统设计与实现详解》在网络编程领域,UDP作为一种无连接的传输层协议,以其高效、低延迟的特性在实时性要求高的应用场景中占据重要地位,下面我们就来看看如何从零开始构建一个完整... 目录前言一、UDP服务器UdpServer.hpp1.1 基本框架设计1.2 初始化函数Init详解
阅读更多...
Java中Map的五种遍历方式实现与对比

Java中Map的五种遍历方式实现与对比

《Java中Map的五种遍历方式实现与对比》其实Map遍历藏着多种玩法,有的优雅简洁,有的性能拉满,今天咱们盘一盘这些进阶偏基础的遍历方式,告别重复又臃肿的代码,感兴趣的小伙伴可以了解下... 目录一、先搞懂：Map遍历的核心目标二、几种遍历方式的对比1. 传统EntrySet遍历（最通用）2. Lambd
阅读更多...
springboot+redis实现订单过期(超时取消)功能的方法详解

springboot+redis实现订单过期(超时取消)功能的方法详解

《springboot+redis实现订单过期(超时取消)功能的方法详解》在SpringBoot中使用Redis实现订单过期（超时取消）功能,有多种成熟方案,本文为大家整理了几个详细方法,文中的示例代... 目录一、Redis键过期回调方案（推荐）1. 配置Redis监听器2. 监听键过期事件3. Redi
阅读更多...
SpringBoot全局异常拦截与自定义错误页面实现过程解读

SpringBoot全局异常拦截与自定义错误页面实现过程解读

《SpringBoot全局异常拦截与自定义错误页面实现过程解读》本文介绍了SpringBoot中全局异常拦截与自定义错误页面的实现方法,包括异常的分类、SpringBoot默认异常处理机制、全局异常拦... 目录一、引言二、Spring Boot异常处理基础2.1 异常的分类2.2 Spring Boot默
阅读更多...
基于SpringBoot实现分布式锁的三种方法

基于SpringBoot实现分布式锁的三种方法

《基于SpringBoot实现分布式锁的三种方法》这篇文章主要为大家详细介绍了基于SpringBoot实现分布式锁的三种方法,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一下... 目录一、基于Redis原生命令实现分布式锁1. 基础版Redis分布式锁2. 可重入锁实现二、使用Redisso
阅读更多...
SpringBoo WebFlux+MongoDB实现非阻塞API过程

SpringBoo WebFlux+MongoDB实现非阻塞API过程

《SpringBooWebFlux+MongoDB实现非阻塞API过程》本文介绍了如何使用SpringBootWebFlux和MongoDB实现非阻塞API,通过响应式编程提高系统的吞吐量和响应性能... 目录一、引言二、响应式编程基础2.1 响应式编程概念2.2 响应式编程的优势2.3 响应式编程相关技术
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2