如何设置一个blob文件在JavaScript的名称时，强制下载它通过window.location?
function newFile(data) {
var json = JSON.stringify(data);
var blob = new Blob([json], {type: "octet/stream"});
var url = window.URL.createObjectURL(blob);
window.location.assign(url);
}
运行上面的代码立即下载一个文件，而不需要页面刷新，如下所示:
bfefe410-8d9c-4883-86c5-d76c50a24a1d
我想把文件名设为my-download。json。
当前回答
晚了，但因为我遇到了同样的问题，我添加了我的解决方案:
function newFile(data, fileName) {
var json = JSON.stringify(data);
//IE11 support
if (window.navigator && window.navigator.msSaveOrOpenBlob) {
let blob = new Blob([json], {type: "application/json"});
window.navigator.msSaveOrOpenBlob(blob, fileName);
} else {// other browsers
let file = new File([json], fileName, {type: "application/json"});
let exportUrl = URL.createObjectURL(file);
window.location.assign(exportUrl);
URL.revokeObjectURL(exportUrl);
}
}
其他回答
Window.location.assign不适合我。它可以下载，但在Windows平台上下载CSV文件时没有扩展名。下面的方法对我很有效。
var blob = new Blob([csvString], { type: 'text/csv' });
//window.location.assign(window.URL.createObjectURL(blob));
var link = window.document.createElement('a');
link.href = window.URL.createObjectURL(blob);
// Construct filename dynamically and set to link.download
link.download = link.href.split('/').pop() + '.' + extension;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
saveFileOnUserDevice = function(file){ // content: blob, name: string
if(navigator.msSaveBlob){ // For ie and Edge
return navigator.msSaveBlob(file.content, file.name);
}
else{
let link = document.createElement('a');
link.href = window.URL.createObjectURL(file.content);
link.download = file.name;
document.body.appendChild(link);
link.dispatchEvent(new MouseEvent('click', {bubbles: true, cancelable: true, view: window}));
link.remove();
window.URL.revokeObjectURL(link.href);
}
}
晚了，但因为我遇到了同样的问题，我添加了我的解决方案:
function newFile(data, fileName) {
var json = JSON.stringify(data);
//IE11 support
if (window.navigator && window.navigator.msSaveOrOpenBlob) {
let blob = new Blob([json], {type: "application/json"});
window.navigator.msSaveOrOpenBlob(blob, fileName);
} else {// other browsers
let file = new File([json], fileName, {type: "application/json"});
let exportUrl = URL.createObjectURL(file);
window.location.assign(exportUrl);
URL.revokeObjectURL(exportUrl);
}
}
这是一个很好的简单的解决方法。
function downloadBloob(blob,FileName) {
var link = document.createElement("a"); // Or maybe get it from the current document
link.href = blob;
link.download = FileName;
link.click();
}
这就是我的解。在我看来，你不能绕过<a>。
函数export2json() { Const data = { 答:“111”, 乙:“222”, c:“333” }; const a = document.createElement("a"); a.href = URL.createObjectURL( 新团([JSON。Stringify (data, null, 2)]， { 类型:“application / json” }) ）; a.setAttribute(“下载”,“data.json”); document.body.appendChild(一个); a.click (); document.body.removeChild(一个); ｝ <按钮onclick = " export2json ()>导出数据到json文件</button>
