导出---后台返回二进制流文件数据，前端转换格式进行下载

isExcel(type,name, data) {
  const link = document.createElement('a')
  const blob = new Blob([data])
  link.style.display = 'none'
  link.href = URL.createObjectURL(blob)
  link.setAttribute('download', `${name}.`+type)
  document.body.appendChild(link)
  link.click()
  document.body.removeChild(link)
},

fuDown() {
      let parmas = {
        fileName: this.blogData.annexUrl.split("/")[
          this.blogData.annexUrl.split("/").length - 1
        ],
      };

      downloadFu(parmas)//集成的axios
        .then((res) => {
          console.log("下载");
          console.log(res);
          console.log("res");
          this.$tool.isExcel(this.type, this.typeName, res);
        })
        .catch((res) => {
          console.log(res.msg);
          console.log("res.msg");
        });

　　　　//原生axios//
      // axios
      //   .get("http://172.16.9.224:8090/blogs/blog/download", {
      //     params: {
      //      fileName: this.blogData.annexUrl.split("/")[ this.blogData.annexUrl.split("/").length - 1 ],  //请求参数，文件名称
      //     },
      //     headers: {
      //                   'X-Token': '1635c0cbc5f64e63b4d8f2bb171db48d#ACCOUNT#89177'
      //               },
      //      responseType: 'blob', //二进制流  ,请求时需要配置响应类型

      //   })
      //   .then((res) => {
      //     console.log("数据是:", res);

      //     this.$tool.isExcel(this.type,this.typeName,res.data)  type文件类型、typename 文件名称  data返回的二进制流数据


      //   })
      //   .catch((e) => {
      //     console.log("获取数据失败");
      //   });
    },

 补充方法：

export function buildExport(name, url, params = {}) {
  console.log("传入的参数-------------",params,(process.env.VUE_APP_API_URL?process.env.VUE_APP_API_URL:configs.baseURL.target) + url)
  axios({
    method: 'post',
    url: (process.env.VUE_APP_API_URL?process.env.VUE_APP_API_URL:configs.baseURL.target) + url,
    data:  {param:encryptList.Encrypt(JSON.stringify(params))},
    responseType: 'blob',
    headers: { 'token': tool.getToken(),appId:tool.getStorage("appId") }
  }).then(res => {
    const link = document.createElement('a')
    const blob = new Blob([res.data], { type: 'application/vnd.ms-excel' })
    link.style.display = 'none'
    link.href = URL.createObjectURL(blob)
    link.setAttribute('download', `${name}.xls`)
    document.body.appendChild(link)
    link.click()
    document.body.removeChild(link);
  }).catch(err => {
    console.log('导出报错', err);
  });
}