深入浅出使用JS/TS轻松搞定Excel与XML互转

npm install xlsx xml2js ts-node typescript @types/node xml-js
npm install @types/xml2js @types/xlsx @types/xml-js -D

import * as XLSX from 'xlsx';

// 读取Excel文件
const workbook = XLSX.readFile('users.xlsx');

// 获取第一个工作表
const sheetName = workbook.SheetNames[0];
const worksheet = workbook.Sheets[sheetName];

// 将工作表转换为JSON对象数组
const jsonData = XLSX.utils.sheet_to_json<{ id: number; name: string; email: string }>(worksheet);

console.log(jsonData);
/*
输出:
[
  { id: 1, name: 'Alice', email: 'Alice@163.com' },
  { id: 2, name: 'Bob', email: 'Bob@163.com' },
  { id: 3, name: 'Charlie', email: 'Charlie@163.com' }
]
*/

import * as convert from 'xml-js';

// 假设 jsonData 来自上一步
const dataForXml = {
    _declaration: { _attributes: { version: '1.0', encoding: 'utf-8' } },
    users: {
        user: jsonData.map((u) => ({
            _attributes: { id: u.id },
            name: { _text: u.name },
            email: { _text: u.email },
        })),
    },
};

const xmlData = convert.js2xml(dataForXml, { compact: true, spaces: 4 });

console.log(xmlData);

<?xml version="1.0" encoding="utf-8"?>
<users>
    <user id="1">
        <name>Alice</name>
        <email>Alice@163.com</email>
    </user>
    <user id="2">
        <name>Bob</name>
        <email>Bob@163.com</email>
    </user>
    <user id="3">
        <name>Charlie</name>
        <email>Charlie@163.com</email>
    </user>
</users>

import * as fs from 'fs';
import * as convert from 'xml-js';

// 读取XML文件内容
const xmlFile = fs.readFileSync('output.xml', 'utf8');

// 将XML转换为JavaScript对象
const jsonDataFromXml = convert.xml2js(xmlFile, { compact: true }) as any;

// 提取我们需要的用户数据数组
const users = jsonDataFromXml.users.user.map((u: any) => ({
    id: u._attributes.id,
    name: u.name._text,
    email: u.email._text,
}));

console.log(users);
/*
[
  { id: '1', name: 'Alice', email: 'alice@163.com' },
  { id: '2', name: 'Bob', email: 'bob@163.com' },
  { id: '3', name: 'Charlie', email: 'charlie@163.com' }
]
*/

import * as XLSX from 'xlsx';

// 1. 创建一个新的工作簿
const newWorkbook = XLSX.utils.book_new();

// 2. 将JSON数据转换为工作表
const newWorksheet = XLSX.utils.json_to_sheet(users);

// 3. 将工作表附加到工作簿，并命名为 "Users"
XLSX.utils.book_append_sheet(newWorkbook, newWorksheet, 'Users');

// 4. 生成Excel文件并写入磁盘
XLSX.writeFile(newWorkbook, 'users_from_xml.xlsx');