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这篇文章主要介绍了vue怎么导入excel文件和多个sheets的相关知识,内容详细易懂,操作简单快捷,具有一定借鉴价值,相信大家阅读完这篇vue怎么导入excel文件和多个sheets文章都会有所收获,下面我们一起来看看吧。
<el-button v-waves :loading='downloadLoading' class='filter-item' type='primary' icon='el-icon-download' @click='daoru'> 导入 </el-button> <el-dialog title="导入文件" :visible.sync="excelImportShow"> <a href="javascript:;" rel="external nofollow" class="file"> <input id="upload" type="file" @change="importfxx(this)" accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel" /> </a> <div id="demo"></div> <div slot="footer" class="dialog-footer"> <el-button @click.native="excelImportShow = false">取消</el-button> <el-button type="primary" @click.native="submit">提交</el-button> </div> </el-dialog>
excelImportShow: false, //导入文件的弹框 uploadArr: [], // 上传给后台的数据 realname: '', // 以下都是我要转换的数据,因人而异 gender: '', age: '', minzu: '', wenhua: '', shengfenzheng: '', job: '', mobile: '', mark: ''
daoru() { this.excelImportShow = true },
// 导入 importfxx(obj) { let _this = this; let inputDOM = this.$refs.inputer; // 通过DOM取文件数据 this.file = event.currentTarget.files[0]; var rABS = false; //是否将文件读取为二进制字符串 var f = this.file; var reader = new FileReader(); FileReader.prototype.readAsBinaryString = function(f) { var binary = ""; var rABS = false; //是否将文件读取为二进制字符串 var pt = this; var wb; //读取完成的数据 var outdata; var reader = new FileReader(); reader.onload = function(e) { var bytes = new Uint8Array(reader.result); var length = bytes.byteLength; for (var i = 0; i < length; i++) { binary += String.fromCharCode(bytes[i]); } var XLSX = require('xlsx'); if (rABS) { wb = XLSX.read(btoa(fixdata(binary)), { //手动转化 type: 'base64' }); } else { wb = XLSX.read(binary, { type: 'binary' }); } outdata = XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]]); //outdata就是你想要的东西 this.da = [...outdata] let arr = [] let nameArr = outdata[1] for (let v in nameArr) { // 拿到 excel 里面的列名,根据列名得到里面的键名 let title = nameArr[v] switch (title){ case '姓名': console.log('这是姓名',nameArr[v]); _this.realname = v console.log('这是realname',v); break; case '性别': console.log('这是性别',nameArr[v]); _this.gender = v console.log('这是gender',v); break; case '年龄': console.log('这是年龄',nameArr[v]); _this.age = v console.log('这是age',v); break; case '民族': console.log('这是民族',nameArr[v]); _this.minzu = v console.log('这是minzu',v); break; case '学历': console.log('这是性别',nameArr[v]); _this.wenhua = v console.log('这是job',v); break; case '身份证号': console.log('这是身份证号',nameArr[v]); _this.shengfenzheng = v console.log('这是shenfengzheng',v); break; case '工作单位/学校/社区': console.log('"工作单位/学校/社区"',nameArr[v]); _this.job = v console.log('这是job',v); break; case '手机/电话': console.log('这是手机/电话',nameArr[v]); _this.mobile = v console.log('这是mobile',v); break; case '备注': console.log('这是备注',nameArr[v]); _this.mark = v console.log('这是mark',v); break; default: break; } } let obj let uploadArr = [] // 这里是一个excel里面会有多个sheets,把里面的恶数据整个到这个数组里面一起上传 let leng = Object.keys(wb.Sheets).length // 用for循环,leng 是sheets的个数,用来循环次数 for (var i = 0; i < leng+1; i++) { XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[i]]) let arrr = XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[i]]) arrr = arrr.slice(2) //如果从第三行开始是数据,那这里就是1,如果从第四行开始是数据,那这里就是2 uploadArr.push.apply(uploadArr,arrr) _this.uploadArr = uploadArr } this.da.map(v => { let obj = {} obj.id = v.id obj.status = v.status arr.push(obj) }) let para = { withList: arr } _this.$message({ message: '请耐心等待导入成功', type: 'success' }); } reader.readAsArrayBuffer(f); } if (rABS) { reader.readAsArrayBuffer(f); } else { reader.readAsBinaryString(f); } },
(其实这里就是上传到后台接口的,存到数据库里面才能保存)
// 确认导入 submit() { let uploadArr = this.uploadArr this.excelImportShow = false let obj for (let v in uploadArr) { obj = {realname:uploadArr[v][""+this.realname+""], age:uploadArr[v][""+this.age+""], gender: uploadArr[v][""+this.gender+""]=='男'?'MALE':'FEMALE', minzu: uploadArr[v][""+this.minzu+""], wenhua: uploadArr[v][""+this.wenhua+""], shengfenzheng: uploadArr[v][""+this.shengfenzheng+""], job: uploadArr[v][""+this.job+""], wenhua: uploadArr[v][""+this.wenhua+""], mobile:uploadArr[v][""+this.mobile+""], mark:uploadArr[v][""+this.mark+""], place: "00"} // 这里的obj 就是后台需要的参数,用变量表示键名 [""+此处是你的变量+""] createUser(obj).then((res) => { 这是后台添加的方法 if (res.data.return_code === '200') { this.dialogFormVisible = false } else { this.$notify.error(res.data.return_msg) } }) if (parseInt(v) === parseInt(uploadArr.length)-1) { console.log(v+'和'+uploadArr.length); setTimeout(()=>{ this.$notify({ title: '成功', message: '创建成功', type: 'success', duration: 2000 }) this.getList({ page: 1,limit: 20 }) // 添加成功之后调用list 接口,展示所添加的数据 },1500) } } },
vue导入Excel表格主要有两种常用的方法,一个是借助ElementUI文件上传进行表格导入,另一个是自带的input做文件上传;以下对两个方法做详细介绍;
1.1 使用ElementUI中的upload组件 安装ElementUI
npm i element-ui -S
安装Excel表格解析插件
npm i xlsx -S
导入需要用的工具包
import Vue from "vue"; import ElementUI from "element-ui"; import "element-ui/lib/theme-chalk/index.css"; import { read, utils } from "xlsx"; // 注意处理方法引入方式 Vue.use(ElementUI);
引入组件
<el-upload action="https://jsonplaceholder.typicode.com/posts/" :on-success="handleChange" :file-list="fileList" class="el-upload" >
添加处理逻辑
// 导入成功时执行 handleChange(res, file, fileList) { // 将文件放入 for (let i = 0; i < fileList.length; i++) { if (file.name != fileList[i].name) { this.fileList.push({ name: file.name, url: "", uid: file.uid }); } } const files = { 0: file }; this.readExcel(files); }, readExcel(file) { const fileReader = new FileReader(); fileReader.onload = ev => { try { const data = ev.target.result; const workbook = read(data, { type: "binary" }); const params = []; // 取对应表生成json表格内容 workbook.SheetNames.forEach(item => { this.tableData.push(utils.sheet_to_json(workbook.Sheets[item])); }); // 该算法仅针对表头无合并的情况 if (this.tableData.length > 0) { // 获取excel中第一个表格数据tableData[0][0],并且将表头提取出来 for (const key in this.tableData[0][0]) { this.tableHead.push(key); } } // 重写数据 } catch (e) { console.log("error:" + e); return false; } }; fileReader.readAsBinaryString(file[0].raw); }
以上处理的数据我这边用组件展示在了页面上,效果如下图:
1.2 使用input文件上传 安装Excel表格解析插件
npm i xlsx -S
导入需要用的工具包
import { read, utils } from "xlsx"; // 注意处理方法引入方式
使用input
<div class="flex-display"> <div class="left-box">文件上传(input):</div> <input type="file" v-on:change="onChange" class="file-ipt" /> </div>
添加处理逻辑
基本与上面处理逻辑相同
onChange(e) { const file = e.target.files[0]; const fileReader = new FileReader(); fileReader.onload = ev => { try { const data = ev.target.result; const workbook = read(data, { type: "binary" }); const params = []; // 取对应表生成json表格内容 workbook.SheetNames.forEach(item => { params.push({ name: item, dataList: utils.sheet_to_json(workbook.Sheets[item]) }); this.tableData.push(utils.sheet_to_json(workbook.Sheets[item])); }); // 该算法仅针对表头无合并的情况 if (this.tableData.length > 0) { // 获取excel中第一个表格数据tableData[0][0],并且将表头提取出来 for (const key in this.tableData[0][0]) { this.tableHead.push(key); } } return params; // 重写数据 } catch (e) { console.log("error:" + e); return false; } }; fileReader.readAsBinaryString(file); }
效果如下:
总的样式以及代码如下:
<template> <div> <div class="flex-display"> <div class="left-box">表格上传(ElementUI):</div> <el-upload action="https://jsonplaceholder.typicode.com/posts/" :on-success="handleChange" :file-list="fileList" class="el-upload" > <el-button size="small" type="primary" class="el-btn" >点击上传</el-button > <div slot="tip" class="el-upload-tip"> 只能上传xlsx文件,且不超过5MB </div> </el-upload> </div> <el-table v-if="tableHead.length" :data="tableData[0]" > <el-table-column v-for="(data, key) in tableHead" :prop="data" :label="data" :key="key" width="180" > </el-table-column> </el-table> <div class="flex-display"> <div class="left-box">文件上传(input):</div> <input type="file" v-on:change="onChange" class="file-ipt" /> </div> </div> </template>
<script> import Vue from "vue"; import ElementUI from "element-ui"; import "element-ui/lib/theme-chalk/index.css"; import { read, utils } from "xlsx"; Vue.use(ElementUI); export default { data() { return { fileList: [], //上传文件列表 tableHead: [], //表头 tableData: [] // 表数据 }; }, methods: { onChange(e) { const file = e.target.files[0]; const fileReader = new FileReader(); fileReader.onload = ev => { try { const data = ev.target.result; const workbook = read(data, { type: "binary" }); const params = []; // 取对应表生成json表格内容 workbook.SheetNames.forEach(item => { params.push({ name: item, dataList: utils.sheet_to_json(workbook.Sheets[item]) }); this.tableData.push(utils.sheet_to_json(workbook.Sheets[item])); }); // 该算法仅针对表头无合并的情况 if (this.tableData.length > 0) { // 获取excel中第一个表格数据tableData[0][0],并且将表头提取出来 for (const key in this.tableData[0][0]) { this.tableHead.push(key); } } return params; // 重写数据 } catch (e) { console.log("error:" + e); return false; } }; fileReader.readAsBinaryString(file); }, handleChange(res, file, fileList) { // 将文件放入 for (let i = 0; i < fileList.length; i++) { if (file.name != fileList[i].name) { this.fileList.push({ name: file.name, url: "", uid: file.uid }); } } // this.fileList = fileList.slice(-3); const files = { 0: file }; this.readExcel(files); }, readExcel(file) { const fileReader = new FileReader(); fileReader.onload = ev => { try { const data = ev.target.result; const workbook = read(data, { type: "binary" }); const params = []; // 取对应表生成json表格内容 workbook.SheetNames.forEach(item => { params.push({ name: item, dataList: utils.sheet_to_json(workbook.Sheets[item]) }); this.tableData.push(utils.sheet_to_json(workbook.Sheets[item])); }); // 该算法仅针对表头无合并的情况 if (this.tableData.length > 0) { // 获取excel中第一个表格数据tableData[0][0],并且将表头提取出来 for (const key in this.tableData[0][0]) { this.tableHead.push(key); } } return params; // 重写数据 } catch (e) { console.log("error:" + e); return false; } }; fileReader.readAsBinaryString(file[0].raw); } } }; </script>
<style lang="scss" scoped> .upload-demo { width: 100%; } .flex-display { margin: 50px 30px; width: 100%; display: flex; justify-content: flex-start; .left-box { margin: 20 30; height: 36px; line-height: 36px; } } .el-upload { margin-left: 40px; .el-btn { font-size: 16px; } .el-upload-tip { display: inline; font-size: 12px; } } .file-ipt { width: 200px; height: 36px; line-height: 36px; button { background-color: #409eff; } } input #file-upload-button { background-color: #409eff; } </style>
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