组件内导入

import {TouchableOpacity,PermissionsAndroid} from 'react-native';
import RNFS from 'react-native-fs';
import XLSX from 'xlsx';
import DocumentPicker from 'react-native-document-picker';
import {Buffer} from 'buffer';// 需要安装一下三个,Buffer和react-native无需安装"xlsx": "^0.18.5""react-native-fs": "^2.20.0","react-native-document-picker": "^9.0.1",

下面是逻辑代码

// 导入设备代码function importdevice() {console.log('导入设备');requestFileAccessPermission(async state => {if (state) {openDocumentPicker();} else {ToastAndroid.show('权限获取失败', 1500);}});}function parseDataArray(data) {// 第一行为表头，从第二行开始为数据行const header = ['name', 'gender', 'birthday', 'height', 'weight'];const dataArray = [];for (let i = 1; i < data.length; i++) {const row = data[i];const rowData = {};// 将表头与数据行的每个数据项组装成键值对for (let j = 0; j < header.length; j++) {rowData[header[j]] = row[j];}dataArray.push(rowData);}return dataArray;}async function openDocumentPicker() {try {const result = await DocumentPicker.pick({type: [DocumentPicker.types.allFiles], // 允许用户选择所有类型的文件});// 使用RNFS模块来读取文件内容const fileContents = await RNFS.readFile(result[0].uri, 'base64');const binaryData = Buffer.from(fileContents, 'base64');const workbook = XLSX.read(binaryData, {type: 'buffer'});const sheetNameList = workbook.SheetNames;const firstSheetName = sheetNameList[0];const worksheet = workbook.Sheets[firstSheetName];const data = XLSX.utils.sheet_to_json(worksheet, {header: 1});const members = parseDataArray(data);console.log('members',members);  // 这里就是excel文档数据,以数组格式展开} catch (error) {ToastAndroid.show('导入失败', 1500);if (DocumentPicker.isCancel(error)) {console.log('User cancelled the document picker.');} else {console.log('Error while picking the document:', error);}}}// 定义一个异步函数，用于请求文件访问权限async function requestFileAccessPermission(callBack) {try {const granted = await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.READ_EXTERNAL_STORAGE,{title: 'File Access Permission',message: 'This app needs access to your files.',buttonPositive: 'OK',},);if (granted === PermissionsAndroid.RESULTS.GRANTED) {console.log('File access permission granted.');callBack(true);} else {callBack(false);console.log('File access permission denied.');}} catch (error) {console.log('Error while requesting file access permission:', error);}}

触发导入的按钮

		  <TouchableOpacitystyle={[styles.beginSession]}onPress={importdevice}><Text style={styles.buttonTitle}>批量导入</Text></TouchableOpacity>

如下所示文档

打印结果如下