react 文件下载

1、直接下载

window.open(url)

2、用fetch获取文件，a标签下载

fetch(url, {

            method,

            headers: {"token":token}

        }).then((response) => {

            response.blob().then(blob => {

                let blobUrl = window.URL.createObjectURL(blob);

                let aElement = document.getElementById('downloadDiv'); //获取a标签元素

                let filename = 'test.mp4';//设置文件名称

                aElement.href = blobUrl;//设置a标签路径

                aElement.download = filename;

                aElement.click();

                window.URL.revokeObjectURL(blobUrl);

            });

        }).catch((error) => {

            console.log(error)

            alert('文件下载失败');

        });