常用业务代码

1. 从后台下载文件

async getFile (url, params = {}, filename = '') {
    axios({
      url: p + url,
      method: 'get',
      params,
      responseType: 'blob'
    })v
      .then(res => {
      /* 兼容ie内核，360浏览器的兼容模式 */
        if (window.navigator && window.navigator.msSaveOrOpenBlob) {
          let blob = new Blob([res.data])
          window.navigator.msSaveOrOpenBlob(blob, filename)
        } else {
          /* 火狐谷歌的文件下载方式 */
          var blob = new Blob([res.data])
          var downloadElement = document.createElement('a')
          var href = window.URL.createObjectURL(blob)
          downloadElement.href = href
          downloadElement.download = filename
          document.body.appendChild(downloadElement)
          downloadElement.click()
          document.body.removeChild(downloadElement)
          window.URL.revokeObjectURL(href)
        }
      })
      .catch(response => {
        console.log(response)
      })
  }

2. 获取路由 url 上的参数

export function GetUrlParam (name) {
  var url = window.location.href
  const params = url.substr(url.lastIndexOf('?') + 1).split('&')
  for (let i = 0; i < params.length; i++) {
    const param = params[i]
    const key = param.split('=')[0]
    const value = param.split('=')[1]
    if (key === name) {
      return value
    }
  }
}