前端和后端联调 导出excel功能

方法代码：
payExcelClick (params) {
    if (!params) {
      params = {
        pageSize: this.pageSize,
        queryForm: this.queryForm
      }
    } else {
      params.pageSize = this.pageSize
      params.queryForm = this.queryForm
    }
    payExcelClick(params).then(({status, data}) => {
      if (status === 200) {
        const blob = new Blob([data], { type: "application/x-xls" })
        const fileName = `合同_${new Date().getTime()}.xlsx`
        const elink = document.createElement('a')
        elink.download = fileName
        elink.style.display = 'none'
        elink.href = URL.createObjectURL(blob)
        document.body.appendChild(elink)
        elink.click()
        URL.revokeObjectURL(elink.href)
        document.body.removeChild(elink)
      } else {
        notify('获取信息失败', data.msg, 'error')
      }
    })
},


api：

// 导出当前页的应收
export function payExcelClick (params) {
  return request({
    url: '/xxxx/xxxx/xx/xxxx',
    method: 'post',
    headers: {
      "biz-source-param": "BLG"
    },
    responseType: "blob",
    data: params
  })
}