使用 exceljs

来源于：https://blog.csdn.net/m0_38060839/article/details/86469404

官网
别人博客的参考
exceljs可以生成带样式的表格，但是解析表格来说不是很方便

引用

npm install exceljs

 

创建表格 sheet

var Excel = require('exceljs');
var workbook = new Excel.Workbook();
var sheet = workbook.addWorksheet('My Sheet');

// Remove the worksheet using worksheet id
workbook.removeWorksheet(sheet.id)

// Iterate over all sheets
// Note: workbook.worksheets.forEach will still work but this is better
workbook.eachSheet(function(worksheet, sheetId) {
    // ...
});
 
// fetch sheet by name
var worksheet = workbook.getWorksheet('My Sheet');
 
// fetch sheet by id
var worksheet = workbook.getWorksheet(1);

 

sheet的id就是 1,2,3，分别对应第几个sheet；

加表头

worksheet.columns = [
    { header: 'Id', key: 'id', width: 10 },
    { header: 'Name', key: 'name', width: 32 },
    { header: 'D.O.B.', key: 'DOB', width: 10 }
];

 

按列加内容

6是第6列，起始是1

worksheet.getColumn(6).values = [1,2,3,4,5];

 

加row

//通过key加
worksheet.addRow({id: 1, name: 'John Doe', dob: new Date(1970,1,1)});

//通过数组添加
worksheet.addRow([3, 'Sam', new Date()]);

//多行添加
var rows = [
    [5,'Bob',new Date()], // row by array
    {id:6, name: 'Barbara', dob: new Date()}
];
worksheet.addRows(rows);

 

获取row值

// Get a row object. If it doesn't already exist, a new empty one will be returned
var row = worksheet.getRow(5);
 
// Get the last editable row in a worksheet (or undefined if there are none)
var row = worksheet.lastRow;

// Set a specific row height
row.height = 42.5;
 
// make row hidden
row.hidden = true;

worksheet.getRow(1).values     //返回第一行的数组

 

获取cell

//承接上面的row

row.getCell(1).value = 5; // A5's value set to 5
row.getCell('name').value = 'Zeb'; // B5's value set to 'Zeb' - assuming column 2 is still keyed by name
row.getCell('C').value = new Date(); // C5's value set to now

var cell = worksheet.getCell('C3');
 
// Modify/Add individual cell
cell.value = new Date(1968, 5, 1);

 

eachRow

// Iterate over all rows that have values in a worksheet
worksheet.eachRow(function(row, rowNumber) {
    console.log('Row ' + rowNumber + ' = ' + JSON.stringify(row.values));
});
 
// Iterate over all rows (including empty rows) in a worksheet
worksheet.eachRow({ includeEmpty: true }, function(row, rowNumber) {
    console.log('Row ' + rowNumber + ' = ' + JSON.stringify(row.values));
});

 

eachCell

// Iterate over all non-null cells in a row
row.eachCell(function(cell, colNumber) {
    console.log('Cell ' + colNumber + ' = ' + cell.value);
});
 
// Iterate over all cells in a row (including empty cells)
row.eachCell({ includeEmpty: true }, function(cell, colNumber) {
    console.log('Cell ' + colNumber + ' = ' + cell.value);
});

row 其他

// Cut one or more rows (rows below are shifted up)
// Known Issue: If a splice causes any merged cells to move, the results may be unpredictable
//删掉第4行开始往下共三行（4,5,6），其他行上移
worksheet.spliceRows(4,3);
 
// remove one row and insert two more.
// Note: rows 4 and below will be shifted down by 1 row.
//删掉第三行，在加两行，其他行下移
var newRow3Values = [1,2,3,4,5];
var newRow4Values = ['one', 'two', 'three', 'four', 'five'];
worksheet.spliceRows(3, 1, newRow3Values, newRow4Values);
 
// Cut one or more cells (cells to the right are shifted left)
// Note: this operation will not affect other rows
//删掉row里面第3，4个cell
row.splice(3,2);
 
// remove one cell and insert two more (cells to the right of the cut cell will be shifted right)
//删掉row里面第4个cell ，在加俩cell
row.splice(4,1,'new value 1', 'new value 2');
 
// Commit a completed row to stream
row.commit();
 
// row metrics
//获取一行有几个cell
//去掉空的，真实有值的。
var rowSize = row.cellCount;
var numValues = row.actualCellCount;

 

Merged Cells

// merge a range of cells
worksheet.mergeCells('A4:B5');
 
// ... merged cells are linked
worksheet.getCell('B5').value = 'Hello, World

 

输出表格

//Writing XLSX

workbook.xlsx.writeFile('filename.xlsx')
    .then(function() {
        // done
        console.log('done')
    });
 

 

STYLE

//改字体
ws.getRow(2).font = { name: 'Comic Sans MS', family: 4, size: 16, underline: 'double', bold: true };
ws.getRow(1).font = { name: "Segoe UI", size: 10, color: { argb: 'FFFFFFFF' }, family: 1 }

 

 

Font Property	Description	Example Value(s)
name		‘Arial’, ‘Calibri’, etc.
family	一般选1正常字体	1 - Serif, 2 - Sans Serif, 3 - Mono, Others - unknown
scheme		‘minor’, ‘major’, ‘none’
charset		1, 2, etc.
color	16进制颜色，前两个就是FF（透明度），后面就是颜色	{ argb: ‘FFFF0000’}
bold		true, false
italic		true, false
underline		true, false, ‘none’, ‘single’, ‘double’, ‘singleAccounting’, ‘doubleAccounting’

align

// set cell alignment to top-left, middle-center, bottom-right
ws.getCell('A1').alignment = { vertical: 'top', horizontal: 'left' };
ws.getCell('B1').alignment = { vertical: 'middle', horizontal: 'center' };
ws.getCell('C1').alignment = { vertical: 'bottom', horizontal: 'right' };
 
// set cell to wrap-text
ws.getCell('D1').alignment = { wrapText: true };
 
// set cell indent to 1
ws.getCell('E1').alignment = { indent: 1 };
 
// set cell text rotation to 30deg upwards, 45deg downwards and vertical text
ws.getCell('F1').alignment = { textRotation: 30 };
ws.getCell('G1').alignment = { textRotation: -45 };
ws.getCell('H1').alignment = { textRotation: 'vertical' };

//目前我用到了 ：水平垂直居中，wraptext
sheet.getCell(col+1).alignment={ vertical: 'middle', horizontal: 'center', wrapText: true };

 

border

Valid Border Styles

• thin （常用）
• dotted
• dashDot
• hair
• dashDotDot
• slantDashDot
• mediumDashed
• mediumDashDotDot
• mediumDashDot
• medium
• double
• thick

// set single thin border around A1
//封装成函数每个cell都要加一遍

ws.getCell('A1').border = {
    top: {style:'thin'},
    left: {style:'thin'},
    bottom: {style:'thin'},
    right: {style:'thin'}
};
 
// set double thin green border around A3
ws.getCell('A3').border = {
    top: {style:'double', color: {argb:'FF00FF00'}},
    left: {style:'double', color: {argb:'FF00FF00'}},
    bottom: {style:'double', color: {argb:'FF00FF00'}},
    right: {style:'double', color: {argb:'FF00FF00'}}
};
 
// set thick red cross in A5
ws.getCell('A5').border = {
    diagonal: {up: true, down: true, style:'thick', color: {argb:'FFFF0000'}}
};

 

//
ws.getCell(xx).fill={ type: "pattern", pattern: "solid", fgColor: { argb: 'FF223962' } }

 

目前就用到这些 that’s all！！！！

readfile

// read from a file
var workbook = new Excel.Workbook();
workbook.xlsx.readFile(filename)
    .then(function() {
        // use workbook
        workbook.worksheets
        	能得到每个worksheet已json形式的数组集合。
        	其中 workbook.worksheets[0].name 能得到第一个sheet的表名。
    });
 
// pipe from stream
var workbook = new Excel.Workbook();
stream.pipe(workbook.xlsx.createInputStream());