这是我的HTML表单:
<form name="myForm" ng-submit="">
<input ng-model='file' type="file"/>
<input type="submit" value='Submit'/>
</form>
我想从本地机器上传一个图像,并想读取上传文件的内容。所有这些我都想用AngularJS来做。
当我试图打印$scope的值时。文件是未定义的。
这是我的HTML表单:
<form name="myForm" ng-submit="">
<input ng-model='file' type="file"/>
<input type="submit" value='Submit'/>
</form>
我想从本地机器上传一个图像,并想读取上传文件的内容。所有这些我都想用AngularJS来做。
当我试图打印$scope的值时。文件是未定义的。
当前回答
我尝试了@ anoz(正确答案)给出的所有替代方案…最好的解决方案是https://github.com/danialfarid/angular-file-upload
一些特点:
进步 多文件 字段 旧浏览器(IE8-9)
这对我来说很好。你只需要注意说明。
在服务器端,我使用NodeJs, Express 4和Multer中间件来管理多部分请求。
其他回答
我知道这是一个较晚的条目,但我已经创建了一个简单的上传指令。你可以在任何时间工作!
<input type="file" multiple ng-simple-upload web-api-url="/api/Upload" callback-fn="myCallback" />
在Github上上传更多使用Web API的示例。
我想这是angular文件的上传:
ng-file-upload
用来上传文件的轻量级Angular JS指令。
这里是演示页面。特性
Supports upload progress, cancel/abort upload while in progress, File drag and drop (html5), Directory drag and drop (webkit), CORS, PUT(html5)/POST methods, validation of file type and size, show preview of selected images/audio/videos. Cross browser file upload and FileReader (HTML5 and non-HTML5) with Flash polyfill FileAPI. Allows client side validation/modification before uploading the file Direct upload to db services CouchDB, imgur, etc... with file's content type using Upload.http(). This enables progress event for angular http POST/PUT requests. Seperate shim file, FileAPI files are loaded on demand for non-HTML5 code meaning no extra load/code if you just need HTML5 support. Lightweight using regular $http to upload (with shim for non-HTML5 browsers) so all angular $http features are available
https://github.com/danialfarid/ng-file-upload
你可以使用一个安全快速的FormData对象:
// Store the file object when input field is changed
$scope.contentChanged = function(event){
if (!event.files.length)
return null;
$scope.content = new FormData();
$scope.content.append('fileUpload', event.files[0]);
$scope.$apply();
}
// Upload the file over HTTP
$scope.upload = function(){
$http({
method: 'POST',
url: '/remote/url',
headers: {'Content-Type': undefined },
data: $scope.content,
}).success(function(response) {
// Uploading complete
console.log('Request finished', response);
});
}
上传文件
<input type="file" name="resume" onchange="angular.element(this).scope().uploadResume()" ng-model="fileupload" id="resume" />
$scope.uploadResume = function () {
var f = document.getElementById('resume').files[0];
$scope.selectedResumeName = f.name;
$scope.selectedResumeType = f.type;
r = new FileReader();
r.onloadend = function (e) {
$scope.data = e.target.result;
}
r.readAsDataURL(f);
};
下载文件:
<a href="{{applicant.resume}}" download> download resume</a>
var app = angular.module("myApp", []);
app.config(['$compileProvider', function ($compileProvider) {
$compileProvider.aHrefSanitizationWhitelist(/^\s*(https?|local|data|chrome-extension):/);
$compileProvider.imgSrcSanitizationWhitelist(/^\s*(https?|local|data|chrome-extension):/);
}]);
超文本标记语言
<input type="file" id="file" name='file' onchange="angular.element(this).scope().profileimage(this)" />
添加'profileimage()'方法到你的控制器
$scope.profileimage = function(selectimage) {
console.log(selectimage.files[0]);
var selectfile=selectimage.files[0];
r = new FileReader();
r.onloadend = function (e) {
debugger;
var data = e.target.result;
}
r.readAsBinaryString(selectfile);
}