最佳答案
使用 AngularJS 从 ASP.NET Web API 方法下载文件
在我的 Angular JS 项目中，我有一个 <a>锚标记，当单击它时，会向返回文件的 WebAPI 方法发出一个 HTTPGET请求。
现在，我希望在请求成功后将文件下载给用户。我该怎么做？
锚标签:
<a href="#" ng-click="getthefile()">Download img</a>
AngularJS:
$scope.getthefile = function () {
$http({
method: 'GET',
cache: false,
url: $scope.appPath + 'CourseRegConfirm/getfile',
headers: {
'Content-Type': 'application/json; charset=utf-8'
}
}).success(function (data, status) {
console.log(data); // Displays text data if the file is a text file, binary if it's an image
// What should I write here to download the file I receive from the WebAPI method?
}).error(function (data, status) {
// ...
});
}
我的 WebAPI 方法:
[Authorize]
[Route("getfile")]
public HttpResponseMessage GetTestFile()
{
HttpResponseMessage result = null;
var localFilePath = HttpContext.Current.Server.MapPath("~/timetable.jpg");
if (!File.Exists(localFilePath))
{
result = Request.CreateResponse(HttpStatusCode.Gone);
}
else
{
// Serve the file to the client
result = Request.CreateResponse(HttpStatusCode.OK);
result.Content = new StreamContent(new FileStream(localFilePath, FileMode.Open, FileAccess.Read));
result.Content.Headers.ContentDisposition = new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
result.Content.Headers.ContentDisposition.FileName = "SampleImg";
}
return result;
}
