一、在学习之前,先给出一些学习/下载地址:
xlsx-js-style下载地址
https://github.com/gitbrent/xlsx-js-style
或者
https://www.npmjs.com/package/xlsx-js-style
SheetJS中文教程:
https://xlsx.nodejs.cn/docs/csf/cell
二、先看样式
页面HTML显示
2.1 导出带边框的表格Excel显示样式:
2.2 表格插入表头操作Excel显示样式
三、全部代码:
<html>
<head>
<script src="dist/xlsx.bundle.js"></script>
<style type="text/css">
.tbexport {
border-collapse: collapse;
width: 500px;
}
.tbexport th, td {
border: 1px solid #ddd;
padding: 8px;
text-align: left;
}
.tbexport2 {
border-collapse: collapse;
width: 100%;
}
.tbexport2 th, td {
border: 1px solid #ddd;
text-align: left;
}
</style>
<script
src="https://code.jquery.com/jquery-3.7.1.min.js"
integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo="
crossorigin="anonymous"></script>
<!-- 如果这个jquery连接不上,可以自己下载一个-->
<head>
<body>
<table id="TableToExport" class="tbexport">
<tr>
<td>序号</td>
<td>名称</td>
<td>测试1</td>
<td>测试2</td>
<td>测试3</td>
<td>测试4</td>
</tr>
<tr>
<td>1</td>
<td>bb</td>
<td>345</td>
<td>566</td>
<td>777</td>
<td>888</td>
</tr>
<tr>
<td>2</td>
<td>bb</td>
<td rowspan="3">999</td>
<td>566</td>
<td>777</td>
<td>888</td>
</tr>
<tr>
<td>3</td>
<td>bb</td>
<td>999</td>
<td>1010</td>
<td>111</td>
</tr>
<tr>
<td>4</td>
<td>bb</td>
<td>333</td>
<td>44</td>
<td>55</td>
</tr>
<tr>
<td colSpan="2">合计</td>
<td>22</td>
<td>77</td>
<td>88</td>
<td>99</td>
</tr>
</table>
<style type="text/css">
.datatable{
}
.datatable td{
padding:10px;border:1px solid #000
}
.datatable thead td {
background-color:#f0f0f0
}
</style>
<button id="sheetjsexport" onclick = "myExportExcel()"><b>合并单元格导出带边框</b></button>
<button onclick = "myExportExcel2()"><b>导出带表头表格</b></button>
<script>
var MyStyle = {
borderStyle:{
border: {
top: {
style: 'thin',
color: {
auto: 1
}
},
left: {
style: 'thin',
color: {
auto: 1
}
},
right: {
style: 'thin',
color: {
auto: 1
}
},
bottom: {
style: 'thin',
color: {
auto: 1
}
}
},
},
centerStyle: {
alignment: {
horizontal: "center",
vertical: "center"
}
},
leftStyle :{
alignment: {
horizontal: "left",
vertical: "center"
},
},
rightStyle : {
alignment: {
horizontal: "right",
vertical: "center"
},
},
boldStyle : { //设置一级标题样式
font: {
// sz: 12,
bold: true,
// color: {rgb: "000000"}
}
},
smallStyle : { //设置一级标题样式
font: {
sz: 9,
bold: false,
color: {rgb: "222222"}
}
},
titleStyle : { //设置一级标题样式
font: {
sz: 14,
bold: true,
// color: {rgb: "000000"}
},
alignment: {
horizontal: "center",
vertical: "center"
},
},
title2Style : { //设置二级标题样式
font: {
bold: true,
// color: {rgb: "000000"}
},
alignment: {
horizontal: "center",
vertical: "center"
},
},
bgStyle : {
fill:{
fgColor: {rgb: "EEECE1"}
},
}
};
function checkEmptyItem(ws ){
var range = XLSX.utils.decode_range(ws['!ref']);
// // 计算最大列号
var maxCol = range.e.c; // 'e' 代表结束列,'c' 是列号的字段
var maxRow = range.e.r;
//不加时,合并单元格边框会缺少
for(let i = 0; i<=maxRow; i++)
{
for(let j = 0;j<=maxCol; j++)
{
if (ws[XLSX.utils.encode_cell({r: i, c: j})] == undefined) {
ws[XLSX.utils.encode_cell({r: i, c: j})] =
{t: 's', v: "", z: XLSX.utils.encode_cell({r: i, c: j})};
}
}
}
return ws;
}
function myExportExcel()
{
/* Create worksheet from HTML DOM TABLE */
var wb = XLSX.utils.table_to_book(document.getElementById("TableToExport"),{sheet:'测试',raw:true})
/* Export to file (start a download) */
var ws = wb.Sheets["测试"]; // get the current
const range = XLSX.utils.decode_range(ws['!ref']);
// // 计算最大列号
const maxCol = range.e.c; // 'e' 代表结束列,'c' 是列号的字段
const maxRow = range.e.r;
let arr = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M","N","O","P"] //总共多少列
//设置公共样式
ws = checkEmptyItem(ws);
for (let i = 1; i <= maxRow+1; i++) {
for(j = 0;j<=maxCol; j++)
{
var item = arr[j];
let str = item + i;
if (ws[str]) {
var cellStyle = { };
cellStyle = $.extend(cellStyle, MyStyle.borderStyle) ;
cellStyle = $.extend(cellStyle, MyStyle.centerStyle) ;
if(i==1)
{
cellStyle = $.extend(cellStyle, MyStyle.title2Style) ;
ws['!cols'][j]={wpx:120};//设置列的高度
}
}
Object.assign(ws[str], {s: cellStyle});
}
ws['!rows'][i-1] = { hpx:30 };//设置行的高度
}
XLSX.writeFile(wb, "SheetJSTable.xlsx");
}
//导出带表头样式
function myExportExcel2() {
/* Create worksheet from HTML DOM TABLE */
var wb = XLSX.utils.table_to_book(document.getElementById("TableToExport"), {
sheet: '测试',
raw: true,
origin: {c: 0, r: 1}
}); //从第1列,第三行开始
var ws = wb.Sheets["测试"]; // get the current
// 要插入的新行数据
const newRow = ['测试完成情况'];
//添加1行合并单元格内容
var nMergeLength = ws["!merges"].length;
ws["!merges"][nMergeLength] = XLSX.utils.decode_range("A1:F1");
// 表头设置值
ws[XLSX.utils.encode_cell({r: 0, c: 0})] =
{t: 's', v: newRow[0], z: XLSX.utils.encode_cell({r: 0, c: 0})};
//设置表头样式
Object.assign(ws["A1"], {s: MyStyle.titleStyle});
ws['!rows'][0] = {hpx: 50};
const range = XLSX.utils.decode_range(ws['!ref']);
// // 计算最大列号
const maxCol = range.e.c; // 'e' 代表结束列,'c' 是列号的字段
const maxRow = range.e.r;
let arr = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P"] //总共多少列
ws = checkEmptyItem(ws);
//设置公共样式
for (let i = 2; i <= maxRow + 1; i++) {
for (j = 0; j <= maxCol; j++) {
var item = arr[j];
let str = item + i;
if (ws[str]) {
var cellStyle = {};
cellStyle = $.extend(cellStyle, MyStyle.borderStyle);
cellStyle = $.extend(cellStyle, MyStyle.centerStyle);
if (i == 2) {
cellStyle = $.extend(cellStyle, MyStyle.title2Style, MyStyle.bgStyle);
ws['!cols'][j] = {wpx: 120};//设置列的高度
}
}
Object.assign(ws[str], {s: cellStyle});
}
ws['!rows'][i - 1] = {hpx: 30};//设置行的高度
}
XLSX.writeFile(wb, "SheetJSTable.xlsx");
}
</script>
===================================================
</body>
</html>
四、关键代码说明:
4.1. 这里主要是为了合并单元格时,给空单元格设置一个空值,不然加边框时就不会显示
function checkEmptyItem(ws ){
var range = XLSX.utils.decode_range(ws['!ref']);
// // 计算最大列号
var maxCol = range.e.c; // 'e' 代表结束列,'c' 是列号的字段
var maxRow = range.e.r;
//不加时,合并单元格边框会缺少
for(let i = 0; i<=maxRow; i++)
{
for(let j = 0;j<=maxCol; j++)
{
if (ws[XLSX.utils.encode_cell({r: i, c: j})] == undefined) {
ws[XLSX.utils.encode_cell({r: i, c: j})] =
{t: 's', v: "", z: XLSX.utils.encode_cell({r: i, c: j})};
}
}
}
return ws;
}
4.2 如果需要插入表头:
a) 加这句的意思是从第1行,第0列开始导出表格,意思就是给表头预留一行:
var wb = XLSX.utils.table_to_book(document.getElementById("TableToExport"), {
sheet: '测试',
raw: true,
origin: {c: 0, r: 1}
});
b) 给表头设置值和加入样式:
//添加1行合并单元格内容
var nMergeLength = ws["!merges"].length;
ws["!merges"][nMergeLength] = XLSX.utils.decode_range("A1:F1");
// 表头设置值
ws[XLSX.utils.encode_cell({r: 0, c: 0})] =
{t: 's', v: newRow[0], z: XLSX.utils.encode_cell({r: 0, c: 0})};
//设置表头样式
Object.assign(ws["A1"], {s: MyStyle.titleStyle});
ws['!rows'][0] = {hpx: 50};
下载地址:
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