post 二进制流下载文件

handleClick(str){

      downLoadReport({

        id:str.id

      },{responseType:'blob'}).then((response) => {

        console.log(response.headers['content-disposition'])

        // debugger

        // let data = res.data

        // let url = window.URL.createObjectURL(new Blob([data]))

        // let link = document.createElement('a')

        // link.style.display = 'none'

        // link.href = url

        // link.setAttribute('download', 'test.rar')

        // document.body.appendChild(link)

        // link.click()

        var blob = new Blob([response.data], {type: 'application/xlsx;charset=utf-8'});

        console.log(blob, response,)

        let fileName = response.headers['content-disposition'].split(';')[1]

        fileName = decodeURI(fileName).substring(9)

        var downloadElement = document.createElement('a');

        var href = window.URL.createObjectURL(blob); // 创建下载的链接

        downloadElement.href = href;

        downloadElement.download = fileName // 下载后文件名

        document.body.appendChild(downloadElement);

        downloadElement.click(); // 点击下载

        document.body.removeChild(downloadElement); // 下载完成移除元素

        window.URL.revokeObjectURL(href); // 释放掉blob对象

      })

    },