Export2Excel.ts
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import * as xlsx from 'xlsx';
import type { WorkBook } from 'xlsx';
import type { JsonToSheet, AoAToSheet } from './typing';
import { AoaToMultipleSheet, JsonToMultipleSheet } from './typing';
const { utils, writeFile } = xlsx;
const DEF_FILE_NAME = 'excel-list.xlsx';
const DEF_SHEET_NAME = 'sheet';
/**
* @param data source data
* @param worksheet worksheet object
* @param min min width
*/
function setColumnWidth(data, worksheet, min = 3) {
const obj = {};
worksheet['!cols'] = [];
data.forEach((item) => {
Object.keys(item).forEach((key) => {
const cur = item[key];
const length = cur?.length ?? min;
obj[key] = Math.max(length, obj[key] ?? min);
});
});
Object.keys(obj).forEach((key) => {
worksheet['!cols'].push({
wch: obj[key],
});
});
}
export function jsonToSheetXlsx<T = any>({
data,
header,
filename = DEF_FILE_NAME,
sheetName = DEF_SHEET_NAME,
json2sheetOpts = {},
write2excelOpts = { bookType: 'xlsx' },
}: JsonToSheet<T>) {
const arrData = [...data];
if (header) {
arrData.unshift(header);
json2sheetOpts.skipHeader = true;
}
const worksheet = utils.json_to_sheet(arrData, json2sheetOpts);
setColumnWidth(arrData, worksheet);
/* add worksheet to workbook */
const workbook: WorkBook = {
SheetNames: [sheetName],
Sheets: {
[sheetName]: worksheet,
},
};
/* output format determined by filename */
writeFile(workbook, filename, write2excelOpts);
/* at this point, out.xlsb will have been downloaded */
}
export function aoaToSheetXlsx<T = any>({
data,
header,
filename = DEF_FILE_NAME,
write2excelOpts = { bookType: 'xlsx' },
}: AoAToSheet<T>) {
const arrData = [...data];
if (header) {
arrData.unshift(header);
}
const worksheet = utils.aoa_to_sheet(arrData);
/* add worksheet to workbook */
const workbook: WorkBook = {
SheetNames: [filename],
Sheets: {
[filename]: worksheet,
},
};
/* output format determined by filename */
writeFile(workbook, filename, write2excelOpts);
/* at this point, out.xlsb will have been downloaded */
}
/**
* json导出多Sheet的Xlsx
* @param sheetList 多sheet配置
* @param filename 文件名(包含后缀)
* @param write2excelOpts 文件配置
*/
export function jsonToMultipleSheetXlsx<T = any>({
sheetList,
filename = DEF_FILE_NAME,
write2excelOpts = { bookType: 'xlsx' },
}: JsonToMultipleSheet<T>) {
const workbook: WorkBook = {
SheetNames: [],
Sheets: {},
};
sheetList.forEach((p, index) => {
const arrData = [...p.data];
if (p.header) {
arrData.unshift(p.header);
p.json2sheetOpts = p.json2sheetOpts || {};
p.json2sheetOpts.skipHeader = true;
}
const worksheet = utils.json_to_sheet(arrData, p.json2sheetOpts);
setColumnWidth(arrData, worksheet);
p.sheetName = p.sheetName || `${DEF_SHEET_NAME}${index}`;
workbook.SheetNames.push(p.sheetName);
workbook.Sheets[p.sheetName] = worksheet;
});
writeFile(workbook, filename, write2excelOpts);
}
/**
* aoa导出多Sheet的Xlsx
* @param sheetList 多sheet配置
* @param filename 文件名(包含后缀)
* @param write2excelOpts 文件配置
*/
export function aoaToMultipleSheetXlsx<T = any>({
sheetList,
filename = DEF_FILE_NAME,
write2excelOpts = { bookType: 'xlsx' },
}: AoaToMultipleSheet<T>) {
const workbook: WorkBook = {
SheetNames: [],
Sheets: {},
};
sheetList.forEach((p, index) => {
const arrData = [...p.data];
if (p.header) {
arrData.unshift(p.header);
}
const worksheet = utils.aoa_to_sheet(arrData);
p.sheetName = p.sheetName || `${DEF_SHEET_NAME}${index}`;
workbook.SheetNames.push(p.sheetName);
workbook.Sheets[p.sheetName] = worksheet;
});
/* output format determined by filename */
writeFile(workbook, filename, write2excelOpts);
/* at this point, out.xlsb will have been downloaded */
}