在IE11中打开由createObjectURL创建的链接
为什么不能在以下演示中打开链接:
http://html5-demos.appspot.com/static/a.download.html
你甚至不能右键点击并在新标签页/窗口中打开它。 在我需要自定义的浏览器中是否有任何设置?
此演示使用Blob URL,由于安全限制,IE不支持该URL。
IE有自己的API来创建和下载文件,这个文件叫做msSaveOrOpenBlob
。
这是我的跨浏览器解决方案,适用于IE,Chrome和Firefox:
function createDownloadLink(anchorSelector, str, fileName){
if(window.navigator.msSaveOrOpenBlob) {
var fileData = [str];
blobObject = new Blob(fileData);
$(anchorSelector).click(function(){
window.navigator.msSaveOrOpenBlob(blobObject, fileName);
});
} else {
var url = "data:text/plain;charset=utf-8," + encodeURIComponent(str);
$(anchorSelector).attr("download", fileName);
$(anchorSelector).attr("href", url);
}
}
$(function () {
var str = "hi,file";
createDownloadLink("#export", str, "file.txt");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<a id="export" class="myButton" download="" href="#">export</a>
这里是将任何文件作为blob下载的功能。 (在IE和非IE上测试)
var download_csv_using_blob = function (file_name, content) {
var csvData = new Blob([content], { type: 'text/csv' });
if (window.navigator && window.navigator.msSaveOrOpenBlob) { // for IE
window.navigator.msSaveOrOpenBlob(csvData, file_name);
} else { // for Non-IE (chrome, firefox etc.)
var a = document.createElement("a");
document.body.appendChild(a);
a.style = "display: none";
var csvUrl = URL.createObjectURL(csvData);
a.href = csvUrl;
a.download = file_name;
a.click();
a.remove();
}
};
注意:如果需要,请更改文件的类型。
如果数据来自ajax,那么你可以添加
if (window.navigator.msSaveOrOpenBlob)
xhttp.responseType = "arraybuffer";
else
xhttpGetPack.responseType = "blob";
/////////////////////////////////////////////////
var a = document.createElement("a");
document.body.appendChild(a);
a.style.display = "none";
// IE
if (window.navigator.msSaveOrOpenBlob)
{
a.onclick = ((evx) =>
{
var newBlob = new Blob([new Uint8Array(xhttpGetPack.response)]);
window.navigator.msSaveOrOpenBlob(newBlob, "myfile.ts");
});
a.click();
}
else //Chrome and safari
{
var file = URL.createObjectURL(xhttpGetPack.response);
a.href = file;
a["download"] = "myFile.ts";
a.click();
window.URL.revokeObjectURL(file);
}
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