如何从上传图像的 AngularJS $http POST 请求中获取“进度”事件?是否可以在客户端执行此操作,或者我是否需要服务器在接收数据时报告进度?
使用纯角度:
function upload(data) {
var formData = new FormData();
Object.keys(data).forEach(function(key){formData.append(key, data[key]);});
var defer = $q.defer();
$http({
method: 'POST',
data: formData,
url: <url>,
headers: {'Content-Type': undefined},
uploadEventHandlers: { progress: function(e) {
defer.notify(e.loaded * 100 / e.total);
}}
}).then(defer.resolve.bind(defer), defer.reject.bind(defer));
return defer.promise;
}
还有其他地方......
// file is a JS File object
upload({avatar:file}).then(function(responce){
console.log('success :) ', response);
}, function(){
console.log('failed :(');
}, function(progress){
console.log('uploading: ' + Math.floor(progress) + '%');
});
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