如何使用AngularJS或Javascript提供下载的文件？

<a download="content.txt" ng-href="{{ url }}">download</a>

在您的控制器：

var content = 'file content for example';
var blob = new Blob([ content ],{ type : 'text/plain' });
$scope.url = (window.URL || window.webkitURL).createObjectURL( blob );

以启用网址：

app = angular.module(...);
app.config(['$compileProvider',function ($compileProvider) {
        $compileProvider.aHrefSanitizationWhitelist(/^s*(https?|ftp|mailto|tel|file|blob):/);
}]);

请注意

Each time you call createObjectURL(),a new object URL is created,even if you’ve already created one for the same object. Each of these must be released by calling URL.revokeObjectURL() when you no longer need them. Browsers will release these automatically when the document is unloaded; however,for optimal performance and memory usage,if there are safe times when you can explicitly unload them,you should do so.

资料来源：MDN