我们的团队正在ServiceNow中进行开发,需要能够上传文档并将其附加到案例记录的功能。看了几个例子之后,我们有了一个可行的例子。我们的HTML看起来像这样:
<input type="file" file-model="myFile"/>
<button ng-click="uploadFile()">upload me</button>
在我们的控制器中,我们具有以下内容:
$scope.uploadFile = function(){
var file = $scope.myFile;
console.log('file is ' );
console.dir(file);
var uploadUrl = "/fileUpload";
fileUpload.uploadFileToUrl(file, uploadUrl);
};
我们还创建了一个名为fileUpload的依赖项:
var myApp = angular.module('myApp', []);
myApp.service('fileUpload', ['$http', function ($http) {
this.uploadFileToUrl = function(file, uploadUrl){
var fd = new FormData();
fd.append('file', file);
$http.post(uploadUrl, fd, {
transformRequest: angular.identity,
headers: {'Content-Type': undefined}
})
.success(function(){
})
.error(function(){
});
};
}]);
最后,我们有一个名为fileModel的角度提供程序:
function fileModel($parse) {
return {
restrict: 'A',
link: function(scope, element, attrs) {
var model = $parse(attrs.fileModel);
var modelSetter = model.assign;
element.bind('change', function(){
scope.$apply(function(){
modelSetter(scope, element[0].files[0]);
});
});
}
};
}
是否有一种方法可以修改此文件,以便我们可以上传多个文件而不是一个文件?我们在HTML中添加了“多个”,但控制台中仅显示1个文件。我认为我们遗漏了一些显而易见的东西,但似乎无法弄清楚……
尝试此代码并检查控制台。
<body ng-app="fileUpload" ng-controller="MyCtrl">
<input type="file" multiple="true" id="fileUpload" file="file"/>
<button ng-click="uploadFile()">upload me</button>
</body>
//inject angular file upload directives and services.
var app = angular.module('fileUpload', ['ngFileUpload']);
app.controller('MyCtrl', ['$scope', 'Upload', '$timeout', function ($scope, Upload, $timeout) {
$scope.uploadFile = function () {
var fd = new FormData();
angular.forEach($scope.file, function (value, key) {
fd.append(key, value);
});
for (var pair of fd.entries()) {
console.log(pair[0]+ ', ' + pair[1]);
}
console.log("hi")
};
}]);
app.directive('file', function () {
return {
scope: {
file: '='
},
link: function (scope, el, attrs) {
el.bind('change', function (event) {
var file = event.target.files;
scope.file = file ? file : undefined;
scope.$apply();
});
}
};
})
Codepen-https://jsfiddle.net/PratikPatel227/0rehq8g4/1/(其他)