使用AngularJS上传文件

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

你可以使用flow.js实现良好的文件和文件夹上传。

https://github.com/flowjs/ng-flow

点击这里查看演示

http://flowjs.github.io/ng-flow/

它不支持IE7, IE8, IE9，所以你最终必须使用兼容层

https://github.com/flowjs/fusty-flow.js

2014-05-24 12:15:02

其他回答

该代码将帮助插入文件

<body ng-app = "myApp">
<form ng-controller="insert_Ctrl"  method="post" action=""  name="myForm" enctype="multipart/form-data" novalidate>
    <div>
        <p><input type="file" ng-model="myFile" class="form-control"  onchange="angular.element(this).scope().uploadedFile(this)">
            <span style="color:red" ng-show="(myForm.myFile.$error.required&&myForm.myFile.$touched)">Select Picture</span>
        </p>
    </div>
    <div>
        <input type="button" name="submit"  ng-click="uploadFile()" class="btn-primary" ng-disabled="myForm.myFile.$invalid" value="insert">
    </div>
</form>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script> 
<script src="insert.js"></script>
</body>

insert.js

var app = angular.module('myApp',[]);
app.service('uploadFile', ['$http','$window', function ($http,$window) {
    this.uploadFiletoServer = function(file,uploadUrl){
        var fd = new FormData();
        fd.append('file', file);
        $http.post(uploadUrl, fd, {
            transformRequest: angular.identity,
            headers: {'Content-Type': undefined}
        })
        .success(function(data){
            alert("insert successfull");
            $window.location.href = ' ';//your window location
        })
        .error(function(){
            alert("Error");
        });
    }
}]);
app.controller('insert_Ctrl',  ['$scope', 'uploadFile', function($scope, uploadFile){
    $scope.uploadFile = function() {
        $scope.myFile = $scope.files[0];
        var file = $scope.myFile;
        var url = "save_data.php";
        uploadFile.uploadFiletoServer(file,url);
    };
    $scope.uploadedFile = function(element) {
        var reader = new FileReader();
        reader.onload = function(event) {
            $scope.$apply(function($scope) {
                $scope.files = element.files;
                $scope.src = event.target.result  
            });
        }
        reader.readAsDataURL(element.files[0]);
    }
}]);

save_data.php

<?php
    require "dbconnection.php";
    $ext = pathinfo($_FILES['file']['name'],PATHINFO_EXTENSION);
    $image = time().'.'.$ext;
    move_uploaded_file($_FILES["file"]["tmp_name"],"upload/".$image);
    $query="insert into test_table values ('null','$image')";
    mysqli_query($con,$query);
?>

2018-02-19 07:37:39

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);
    });
}

2015-07-12 00:00:34

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);
    }

2017-04-07 10:39:11

http://jsfiddle.net/vishalvasani/4hqVu/在chrome和IE中运行良好(如果你在background-image中稍微更新CSS)。用于更新进度条:

 scope.progress = Math.round(evt.loaded * 100 / evt.total)

但是在FireFox中，angular的[percent]数据没有在DOM中成功更新，尽管文件上传成功。

2013-12-05 06:55:47