vue2项目导出操作实现方法(后端接口导出、前端直接做导出)

axios({
        method: "get",  //请求方式
        url: url,   //接口
        params: params,
        responseType: 'blob'  
      }).then((res) => {
        if (+res.status == 200) {
          var blob = res.data;
          var filename = "录用统计";  
          saveAs(
            new Blob([blob], {
              type: "application/vnd.ms-excel",
            }),
            filename   //导出文件的文件名可自定义
          );
          
        }
      }).catch(err => {
        console.log(err)
      })

npm install xlsx

/**
 * excel 工具类
 *
 * 基于 js-xlsx 模块对 excel 进行读写
 * 官方文档可参照： https://www.npmjs.com/package/xlsx#acquiring-and-extracting-data
 */
import { utils, read, writeFile } from 'xlsx'

/**
 * sheet 表头解析
 * @param sheet{WorkSheet} sheet 对象
 * @returns {String[]} 表头列表
 */
function readHeaders(sheet) {
    const headerNames = []
    // cell address format: { c: 0, r: 2 }  c: column   r: row
    // range format: { s: { c: 0, r: 2 }, e: { c: 1, r: 6 } }  s: start  e: end
    const range = utils.decode_range(sheet['!ref'])
    const firstRowNum = range.s.r

    for (let columnNum = range.s.c; columnNum <= range.e.c; columnNum++) {
        const cellAddress = { c: columnNum, r: firstRowNum }
        const cell = sheet[utils.encode_cell(cellAddress)]
        const name = cell && cell.t ? cell.w : `UNKNOWN-${columnNum}`
        headerNames.push(name)
    }
    return headerNames
}

/**
 * 读 excel
 * @param file file 对象
 * @returns {Promise<{}>} 返回的对象 { sheetName: {headerNames, dataList}}
 */
export const readFile = async(file) => {
    const ret = {}
    const bufferData = await file.arrayBuffer()
    const workBook = read(bufferData)
    for (const sheetName in workBook.Sheets) {
        const sheet = workBook.Sheets[sheetName]
        const headerNames = readHeaders(sheet)
        const dataList = utils.sheet_to_json(sheet)
        ret[sheetName] = { headerNames, dataList }
    }
    return ret
}

/**
 * 输出数据到 excel
 * @param dataList {Object[]} 数据列表
 * @param dataKey {String[]} 需要导出的数据对象 key
 * @param firstRowNames {String[]} 表头
 * @param filename {String} 文件名
 */
export const write2File = (dataList, dataKey, firstRowNames, filename) => {
    const workBook = utils.book_new()
    const handledDataList = dataList.map(data => dataKey.map(key => data[key]))
    handledDataList.unshift(firstRowNames)
    const sheet = utils.aoa_to_sheet(handledDataList)
    utils.book_append_sheet(workBook, sheet, filename)
    writeFile(workBook, `${filename}.xlsx`)
}

export default {
    readFile,
    write2File
}

import { write2File } from "../../assets/js/excel-tool";  //引入excel-tool文件
import { GetNews } from "../../api/api";  //调接口拿数据
 
<script>
    export default {
  name: "articleList",
  data() {
    return {
      dataKey: [
        "title",
        "programName",
        "articelisturl",
        "draftUser",
        "groupName",
        "state",
        "draftTime"
      ],
      firstRowNames: [
        "标题",
        "所属栏目",
        "文章地址",
        "拟稿人",
        "拟稿单位",
        "状态",
        "拟稿日期"
      ],
      filename: "文章列表",
    };
    methods: {
    //导出
    daochu() {
      write2File(
        this.tableData,  //接口数据
        this.dataKey,     //表头对应的数据
        this.firstRowNames,  //表头
        this.filename  //导出内容命名
      );
    },
    //接口数据
    GetNews(num) {
      if (num === 1) {
        this.currentPage = 1;
      }
      let data = {
        pageNum: this.currentPage,
        rowLength: this.pageSize,
        title: this.queryData.title || undefined,
        programCode: this.queryData.programCode || undefined
      };
      
      GetNews(data).then(res => {
        if (res.code === 200) {
          this.tableData = res.data.dataList;
          //此处为拼接的文章地址，可删除
          this.tableData.forEach((item, index) => {
            return (item.articelisturl =
              this.url +
              "newsinfo?type=" +
              item.programName +
              "&code=" +
              item.uniqueCode);
          });

          this.total = Number(res.data.totalItems);
           //强制刷新
          this.$forceUpdate();
        }
      });
    },
    
   }
    
  },
</script>