vue下载excel文件的四种方法实例

window.location.href = `${location.origin}/operation/ruleImport/template`

window.open(`${location.origin}/operation/ruleImport/template`)

axios.get(`/operation/ruleImport/template`, {
        responseType: "blob" //服务器响应的数据类型，可以是 'arraybuffer', 'blob', 'document', 'json', 'text', 'stream'，默认是'json'
    })
    .then(res => 
        if(!res) return
        const blob = new Blob([res.data], { type: 'application/vnd.ms-excel' }) // 构造一个blob对象来处理数据，并设置文件类型
         
        if (window.navigator.msSaveOrOpenBlob) { //兼容IE10
            navigator.msSaveBlob(blob, this.filename)
        } else {
            const href = URL.createObjectURL(blob) //创建新的URL表示指定的blob对象
            const a = document.createElement('a') //创建a标签
            a.style.display = 'none'
            a.href = href // 指定下载链接
            a.download = this.filename //指定下载文件名
            a.click() //触发下载
            URL.revokeObjectURL(a.href) //释放URL对象
        }
        // 这里也可以不创建a链接，直接window.open(href)也能下载
    })
    .catch(err => {
        console.log(err)
    })

npm install js-file-download --S

import fileDownload from 'js-file-download'
 
axios.get(`/operation/ruleImport/template`, {
        responseType: 'blob' //返回的数据类型
    })
    .then(res => {
        fileDownload(res.data, this.fileName)
    })

      exportFile() {
          fetch('http://127.0.0.1:8765/course/exportCourse/33', {
              method: 'GET',
              headers: new Headers({
                  'Authorization': Cookie.get('Authorization') 
              }),
          })
         .then(res => res.blob())
         .then(data => {
              const blobUrl = window.URL.createObjectURL(data);
              const a = document.createElement('a');
              a.download = this.fileName+'.xlsx';
              a.href = blobUrl;
              a.click();
      });
      },