前端导出excel

{ responseType: ‘blob’ } 注意大文本

this.$http.post('/scoreController/export', params, { responseType: 'blob' })
        .then(res => {

          let url = window.URL.createObjectURL(res)
          let link = document.createElement('a')
          link.style.display = 'none'
          link.href = url
          link.setAttribute('download', '主体责任自评.xls')

          document.body.appendChild(link)
          link.click()
        })