前端下载excel

方式一

let params = {
        'token': Cookies.get('token')
      }
      window.location.href = `${window.SITE_CONFIG['baseURL']}/bridge/bridgeevaluatesubtaskbridge/export?${qs.stringify(params)}`

方式二

async downloadTemplate () {
await api.downloadTemplate().then(res => {
const jsonMimeType = 'application/json'
const dataType = res.type
const isBlob = res instanceof Blob && dataType !== jsonMimeType
if (isBlob) {
const realFileName = '成绩导入模板.xls'
const blob = new Blob([res], { type: 'application/vnd.ms-excel' })
const url = window.URL.createObjectURL(blob)
// 生成一个a标签
const link = document.createElement('a')
link.id = 'templateDownloadLink'
link.style.display = 'none'
link.href = url
link.download = realFileName
document.body.appendChild(link)
link.click()
document.body.removeChild(document.getElementById('templateDownloadLink'))
this.$message({
type: 'success',
message: '下载成功'
})
} else {
res.text().then(text => {
const res = JSON.parse(text)
if (res.code === 500) {
util.$message.showError('无法完成下载,请重试或者联系管理员')
}
})
}
})
},

export function exportExcel (params) {
return request({
url: '/export',
method: 'GET',
responseType: 'blob',
params
})
}