常用业务代码

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• 常用业务代码

• 1. 从后台下载文件
• 2. 获取路由 url 上的参数

1. 从后台下载文件

export async function downloadFile(url: string, filename = "file") {
  axios({
    url: url,
    method: "get",
    responseType: "blob",
  })
    .then((res) => {
      /* 兼容ie内核，360浏览器的兼容模式 */
      if (window.navigator && window.navigator["msSaveOrOpenBlob"]) {
        const blob = new Blob([res.data]);
        window.navigator["msSaveOrOpenBlob"](blob, filename);
      } else {
        const downloadElement = document.createElement("a");
        const href = window.URL.createObjectURL(res.data);
        downloadElement.href = href;
        downloadElement.download = filename;
        document.body.appendChild(downloadElement);
        downloadElement.click();
        document.body.removeChild(downloadElement);
        window.URL.revokeObjectURL(href);
      }
    })
    .catch((response) => {
      console.log("err ==>", 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;
    }
  }
}