File Upload using AngularJS

问题

Here is my HTML form:

<form name=\"myForm\" ng-submit=\"\">
    <input ng-model=\'file\' type=\"file\"/>
    <input type=\"submit\" value=\'Submit\'/>
</form>

I want to upload an image from local machine and want to read the content of the uploaded file. All this I want to do using AngularJS.

When I try to print the value of $scope.file it comes as undefined.

回答1:

Some of the answers here propose using FormData(), but unfortunately that is a browser object not available in Internet Explorer 9 and below. If you need to support those older browsers, you will need a backup strategy such as using <iframe> or Flash.

There are already many Angular.js modules to perform file uploading. These two have explicit support for older browsers:

https://github.com/leon/angular-upload - uses iframes as a fallback
https://github.com/danialfarid/ng-file-upload - uses FileAPI/Flash as a fallback

And some other options:

https://github.com/nervgh/angular-file-upload/
https://github.com/uor/angular-file
https://github.com/twilson63/ngUpload
https://github.com/uploadcare/angular-uploadcare

One of these should fit your project, or may give you some insight into how to code it yourself.

回答2:

The easiest is to use HTML5 API, namely FileReader

HTML is pretty straightforward:

<input type="file" id="file" name="file"/>
<button ng-click="add()">Add</button>

In your controller define 'add' method:

$scope.add = function() {
    var f = document.getElementById('file').files[0],
        r = new FileReader();

    r.onloadend = function(e) {
      var data = e.target.result;
      //send your binary data via $http or $resource or do anything else with it
    }

    r.readAsBinaryString(f);
}

Browser Compatibility

Desktop Browsers

Edge 12, Firefox(Gecko) 3.6(1.9.2), Chrome 7, Opera* 12.02, Safari 6.0.2

Mobile Browsers

Firefox(Gecko) 32, Chrome 3, Opera* 11.5, Safari 6.1

Note : readAsBinaryString() method is deprecated and readAsArrayBuffer() should be used instead.

回答3:

This is the modern browser way, without 3rd party libraries. Works on all the latest browsers.

 app.directive('myDirective', function (httpPostFactory) {
    return {
        restrict: 'A',
        scope: true,
        link: function (scope, element, attr) {

            element.bind('change', function () {
                var formData = new FormData();
                formData.append('file', element[0].files[0]);
                httpPostFactory('upload_image.php', formData, function (callback) {
                   // recieve image name to use in a ng-src 
                    console.log(callback);
                });
            });

        }
    };
});

app.factory('httpPostFactory', function ($http) {
    return function (file, data, callback) {
        $http({
            url: file,
            method: "POST",
            data: data,
            headers: {'Content-Type': undefined}
        }).success(function (response) {
            callback(response);
        });
    };
});

HTML:

<input data-my-Directive type="file" name="file">

PHP:

if (isset($_FILES['file']) && $_FILES['file']['error'] == 0) {

// uploads image in the folder images
    $temp = explode(".", $_FILES["file"]["name"]);
    $newfilename = substr(md5(time()), 0, 10) . '.' . end($temp);
    move_uploaded_file($_FILES['file']['tmp_name'], 'images/' . $newfilename);

// give callback to your angular code with the image src name
    echo json_encode($newfilename);
}

js fiddle (only front-end) https://jsfiddle.net/vince123/8d18tsey/31/

回答4:

Below is working example of file upload:

http://jsfiddle.net/vishalvasani/4hqVu/

In this one function called

setFiles

From View which will update the file array in controller

You can check jQuery File Upload using AngularJS

http://blueimp.github.io/jQuery-File-Upload/angularjs.html

回答5:

You can achieve nice file and folder upload using flow.js.

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

Check out a demo here

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

It doesn't support IE7, IE8, IE9, so you'll eventually have to use a compatibility layer

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

回答6:

Use the onchange event to pass the input file element to your function.

<input type="file" onchange="angular.element(this).scope().fileSelected(this)" />

So when a user selects a file, you have a reference to it without the user needing to click an "Add" or "Upload" button.

$scope.fileSelected = function (element) {
    var myFileSelected = element.files[0];
};

回答7:

I tried all alternatives that @Anoyz (Correct answer) gives... and the best solution is https://github.com/danialfarid/angular-file-upload

Some Features:

Progress
Multifiles
Fields
Old browsers (IE8-9)

It's work fine for me. You just have to pay attention to instructions.

In server-side i use NodeJs, Express 4 and Multer middleware to manage multipart request.

回答8:

HTML

<html>
    <head></head>

<body ng-app = "myApp">

  <form ng-controller = "myCtrl">
     <input type = "file" file-model="files" multiple/>
     <button ng-click = "uploadFile()">upload me</button>
     <li ng-repeat="file in files">{{file.name}}</li>
  </form>

Scripts

  <script src = 
     "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
  <script>
    angular.module('myApp', []).directive('fileModel', ['$parse', function ($parse) {
        return {
           restrict: 'A',
           link: function(scope, element, attrs) {
              element.bind('change', function(){
              $parse(attrs.fileModel).assign(scope,element[0].files)
                 scope.$apply();
              });
           }
        };
     }]).controller('myCtrl', ['$scope', '$http', function($scope, $http){


       $scope.uploadFile=function(){
       var fd=new FormData();
        console.log($scope.files);
        angular.forEach($scope.files,function(file){
        fd.append('file',file);
        });
       $http.post('http://localhost:1337/mediaobject/upload',fd,
           {
               transformRequest: angular.identity,
               headers: {'Content-Type': undefined}                     
            }).success(function(d)
                {
                    console.log(d);
                })         
       }
     }]);

  </script>

回答9:

The <input type=file> element does not by default work with the ng-model directive. It needs a custom directive:

Working Demo of `return-files` Directive that Works with `ng-model`¹

angular.module("app",[]);

angular.module("app").directive("selectNgFiles", function() {
  return {
    require: "ngModel",
    link: function postLink(scope,elem,attrs,ngModel) {
      elem.on("change", function(e) {
        var files = elem[0].files;
        ngModel.$setViewValue(files);
      })
    }
  }
});

<script src="//unpkg.com/angular/angular.js"></script>
  <body ng-app="app">
    <h1>AngularJS Input `type=file` Demo</h1>
    
    <input type="file" select-ng-files ng-model="fileList" multiple>
    
    <h2>Files</h2>
    <div ng-repeat="file in fileList">
      {{file.name}}
    </div>
  </body>

`$http.post` from a FileList

$scope.upload = function(url, fileList) {
    var config = { headers: { 'Content-Type': undefined },
                   transformResponse: angular.identity
                 };
    var promises = fileList.map(function(file) {
        return $http.post(url, file, config);
    });
    return $q.all(promises);
};

When sending a POST with a File object, it is important to set 'Content-Type': undefined. The XHR send method will then detect the File object and automatically set the content type.

回答10:

Easy with a directive

Html:

<input type="file" file-upload multiple/>

JS:

app.directive('fileUpload', function () {
return {
    scope: true,        //create a new scope
    link: function (scope, el, attrs) {
        el.bind('change', function (event) {
            var files = event.target.files;
            //iterate files since 'multiple' may be specified on the element
            for (var i = 0;i<files.length;i++) {
                //emit event upward
                scope.$emit("fileSelected", { file: files[i] });
            }                                       
        });
    }
};

In the directive we ensure a new scope is created and then listen for changes made to the file input element. When changes are detected with emit an event to all ancestor scopes (upward) with the file object as a parameter.

In your controller:

$scope.files = [];

//listen for the file selected event
$scope.$on("fileSelected", function (event, args) {
    $scope.$apply(function () {            
        //add the file object to the scope's files collection
        $scope.files.push(args.file);
    });
});

Then in your ajax call:

data: { model: $scope.model, files: $scope.files }

http://shazwazza.com/post/uploading-files-and-json-data-in-the-same-request-with-angular-js/

回答11:

i think this is the angular file upload:

ng-file-upload

Lightweight Angular JS directive to upload files.

Here is the DEMO page.Features

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

回答12:

Your file and json data uploading at the same time .

// FIRST SOLUTION
 var _post = function (file, jsonData) {
            $http({
                url: your url,
                method: "POST",
                headers: { 'Content-Type': undefined },
                transformRequest: function (data) {
                    var formData = new FormData();
                    formData.append("model", angular.toJson(data.model));
                    formData.append("file", data.files);
                    return formData;
                },
                data: { model: jsonData, files: file }
            }).then(function (response) {
                ;
            });
        }
// END OF FIRST SOLUTION

// SECOND SOLUTION
// İf you can add plural file and  İf above code give an error.
// You can try following code
 var _post = function (file, jsonData) {
            $http({
                url: your url,
                method: "POST",
                headers: { 'Content-Type': undefined },
                transformRequest: function (data) {
                    var formData = new FormData();
                    formData.append("model", angular.toJson(data.model));
                for (var i = 0; i < data.files.length; i++) {
                    // add each file to
                    // the form data and iteratively name them
                    formData.append("file" + i, data.files[i]);
                }
                    return formData;
                },
                data: { model: jsonData, files: file }
            }).then(function (response) {
                ;
            });
        }
// END OF SECOND SOLUTION

回答13:

You can use a FormData object which is safe and fast:

// 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);
    });
}

回答14:

http://jsfiddle.net/vishalvasani/4hqVu/ works fine in chrome and IE (if you update CSS a little in background-image). This is used for updating progress bar:

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

but in FireFox angular's [percent] data is not updated in DOM successfully,although files are uploading successfully.

回答15:

You may consider IaaS for file upload, such as Uploadcare. There is an Angular package for it: https://github.com/uploadcare/angular-uploadcare

Technically it's implemented as a directive, providing different options for uploading, and manipulations for uploaded images within the widget:

<uploadcare-widget
  ng-model="object.image.info.uuid"
  data-public-key="YOURKEYHERE"
  data-locale="en"
  data-tabs="file url"
  data-images-only="true"
  data-path-value="true"
  data-preview-step="true"
  data-clearable="true"
  data-multiple="false"
  data-crop="400:200"
  on-upload-complete="onUCUploadComplete(info)"
  on-widget-ready="onUCWidgetReady(widget)"
  value="{{ object.image.info.cdnUrl }}"
 />

More configuration options to play with: https://uploadcare.com/widget/configure/

回答16:

I know this is a late entry but I have created a simple upload directive. Which you can get working in no time!

<input type="file" multiple ng-simple-upload web-api-url="/api/Upload" callback-fn="myCallback" />

ng-simple-upload more on Github with an example using Web API.

回答17:

HTML

<input type="file" id="file" name='file' onchange="angular.element(this).scope().profileimage(this)" />

add 'profileimage()' method to your controller

    $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);
    }

回答18:

This should be an update/comment to @jquery-guru's answer but as I don't have enough rep it will go here. It fixes the errors that are now generated by the code.

https://jsfiddle.net/vzhrqotw/

The change is basically:

FileUploadCtrl.$inject = ['$scope']
function FileUploadCtrl(scope) {

To:

app.controller('FileUploadCtrl', function($scope)
{

Feel free to move to a more appropriate location if desired.

回答19:

I've read all the thread and the HTML5 API solution looked the best. But it changes my binary files, corrupting them in a manner I've not investigated. The solution that worked perfectly for me was :

HTML :

<input type="file" id="msds" ng-model="msds" name="msds"/>
<button ng-click="msds_update()">
    Upload
</button>

JS:

msds_update = function() {
    var f = document.getElementById('msds').files[0],
        r = new FileReader();
    r.onloadend = function(e) {
        var data = e.target.result;
        console.log(data);
        var fd = new FormData();
        fd.append('file', data);
        fd.append('file_name', f.name);
        $http.post('server_handler.php', fd, {
            transformRequest: angular.identity,
            headers: {'Content-Type': undefined}
        })
        .success(function(){
            console.log('success');
        })
        .error(function(){
            console.log('error');
        });
    };
    r.readAsDataURL(f);
}

Server side (PHP):

$file_content = $_POST['file'];
$file_content = substr($file_content,
    strlen('data:text/plain;base64,'));
$file_content = base64_decode($file_content);

回答20:

I am able to upload files using AngularJS by using below code:

The file for the argument that needs to be passed for the function ngUploadFileUpload is $scope.file as per your question.

The key point here is to use transformRequest: []. This will prevent $http with messing with the contents of the file.

       function getFileBuffer(file) {
            var deferred = new $q.defer();
            var reader = new FileReader();
            reader.onloadend = function (e) {
                deferred.resolve(e.target.result);
            }
            reader.onerror = function (e) {
                deferred.reject(e.target.error);
            }

            reader.readAsArrayBuffer(file);
            return deferred.promise;
        }

        function ngUploadFileUpload(endPointUrl, file) {

            var deferred = new $q.defer();
            getFileBuffer(file).then(function (arrayBuffer) {

                $http({
                    method: 'POST',
                    url: endPointUrl,
                    headers: {
                        "accept": "application/json;odata=verbose",
                        'X-RequestDigest': spContext.securityValidation,
                        "content-length": arrayBuffer.byteLength
                    },
                    data: arrayBuffer,
                    transformRequest: []
                }).then(function (data) {
                    deferred.resolve(data);
                }, function (error) {
                    deferred.reject(error);
                    console.error("Error", error)
                });
            }, function (error) {
                console.error("Error", error)
            });

            return deferred.promise;

        }

回答21:

Above accepted answer is not browser compatible. If some one has compatibility issue try this.

Fiddle

View Code

 <div ng-controller="MyCtrl">
      <input type="file" id="file" name="file"/>
      <br>
      <button ng-click="add()">Add</button>
      <p>{{data}}</p>
    </div>

Controller code

var myApp = angular.module('myApp',[]);

function MyCtrl($scope) {
    $scope.data = 'none';    
    $scope.add = function(){
      var f = document.getElementById('file').files[0],
          r = new FileReader();
      r.onloadend = function(e){        
          var binary = "";
var bytes = new Uint8Array(e.target.result);
var length = bytes.byteLength;

for (var i = 0; i < length; i++) 
{
    binary += String.fromCharCode(bytes[i]);
}

$scope.data = (binary).toString();

          alert($scope.data);
      }
      r.readAsArrayBuffer(f);
    }
}

回答22:

in simple words

in Html - add below code only

     <form name="upload" class="form" data-ng-submit="addFile()">
  <input type="file" name="file" multiple 
 onchange="angular.element(this).scope().uploadedFile(this)" />
 <button type="submit">Upload </button>
</form>

in the controller - This function is called when you click "upload file button". it will upload the file. you can console it.

$scope.uploadedFile = function(element) {
$scope.$apply(function($scope) {
  $scope.files = element.files;         
});
}

add more in controllers - below code add into the function . This function is called when you click on button which is used "hitting the api (POST)". it will send file(which uploaded) and form-data to the backend .

var url = httpURL + "/reporttojson"
        var files=$scope.files;

         for ( var i = 0; i < files.length; i++)
         {
            var fd = new FormData();
             angular.forEach(files,function(file){
             fd.append('file',file);
             });
             var data ={
              msg : message,
              sub : sub,
              sendMail: sendMail,
              selectUsersAcknowledge:false
             };

             fd.append("data", JSON.stringify(data));
              $http.post(url, fd, {
               withCredentials : false,
               headers : {
                'Content-Type' : undefined
               },
             transformRequest : angular.identity
             }).success(function(data)
             {
                  toastr.success("Notification sent successfully","",{timeOut: 2000});
                  $scope.removereport()
                   $timeout(function() {
                    location.reload();
                }, 1000);

             }).error(function(data)
             {
              toastr.success("Error in Sending Notification","",{timeOut: 2000});
              $scope.removereport()
             });
        }

in this case .. i added below code as form data

var data ={
          msg : message,
          sub : sub,
          sendMail: sendMail,
          selectUsersAcknowledge:false
         };

回答23:

<form id="csv_file_form" ng-submit="submit_import_csv()" method="POST" enctype="multipart/form-data">
    <input ng-model='file' type="file"/>
    <input type="submit" value='Submit'/>
</form>

In angularJS controller

$scope.submit_import_csv = function(){

        var formData = new FormData(document.getElementById("csv_file_form"));
        console.log(formData);

        $.ajax({
            url: "import",
            type: 'POST',
            data:  formData,
            mimeType:"multipart/form-data",
            contentType: false,
            cache: false,
            processData:false,
            success: function(result, textStatus, jqXHR)
            {
            console.log(result);
            }
        });

        return false;
    }

回答24:

We have used HTML, CSS and AngularJS. Following example shows about how to upload the file using AngularJS.

<html>

   <head>
      <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
   </head>

   <body ng-app = "myApp">

      <div ng-controller = "myCtrl">
         <input type = "file" file-model = "myFile"/>
         <button ng-click = "uploadFile()">upload me</button>
      </div>

      <script>
         var myApp = angular.module('myApp', []);

         myApp.directive('fileModel', ['$parse', function ($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]);
                     });
                  });
               }
            };
         }]);

         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(){
               });
            }
         }]);

         myApp.controller('myCtrl', ['$scope', 'fileUpload', function($scope, fileUpload){
            $scope.uploadFile = function(){
               var file = $scope.myFile;

               console.log('file is ' );
               console.dir(file);

               var uploadUrl = "/fileUpload";
               fileUpload.uploadFileToUrl(file, uploadUrl);
            };
         }]);

      </script>

   </body>
</html>

回答25:

Working Example using Simple Directive (ng-file-model):

.directive("ngFileModel", [function () {
  return {
      $scope: {
          ngFileModel: "="
      },
      link: function ($scope:any, element, attributes) {
          element.bind("change", function (changeEvent:any) {
              var reader = new FileReader();
              reader.onload = function (loadEvent) {
                  $scope.$apply(function () {
                      $scope.ngFileModel = {
                          lastModified: changeEvent.target.files[0].lastModified,
                          lastModifiedDate: changeEvent.target.files[0].lastModifiedDate,
                          name: changeEvent.target.files[0].name,
                          size: changeEvent.target.files[0].size,
                          type: changeEvent.target.files[0].type,
                          data: changeEvent.target.files[0]
                      };
                  });
              }
              reader.readAsDataURL(changeEvent.target.files[0]);
          });
      }
  }
}])

and use FormData to upload file in your function.

var formData = new FormData();
 formData.append("document", $scope.ngFileModel.data)
 formData.append("user_id", $scope.userId)

all credits go for https://github.com/mistralworks/ng-file-model

I have faced a small probelm you can check it here: https://github.com/mistralworks/ng-file-model/issues/7

Finally,here's a forked repo: https://github.com/okasha93/ng-file-model/blob/patch-1/ng-file-model.js

回答26:

The code will helps to insert file

<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);
?>

回答27:

this works

file.html

<html>
   <head>
      <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
   </head>
   <body ng-app = "app">
      <div ng-controller = "myCtrl">
         <input type = "file" file-model = "myFile"/>
         <button ng-click = "uploadFile()">upload me</button>
      </div>
   </body>
   <script src="controller.js"></script>
</html>

controller.js

     var app = angular.module('app', []);

     app.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(res){
                console.log(res);
           }).error(function(error){
                console.log(error);
           });
        }
     }]);

     app.controller('fileCtrl', ['$scope', 'fileUpload', function($scope, fileUpload){
        $scope.uploadFile = function(){
           var file = $scope.myFile;

           console.log('file is ' );
           console.dir(file);

           var uploadUrl = "/fileUpload.php";  // upload url stands for api endpoint to handle upload to directory
           fileUpload.uploadFileToUrl(file, uploadUrl);
        };
     }]);

  </script>

fileupload.php

  <?php
    $ext = pathinfo($_FILES['file']['name'],PATHINFO_EXTENSION);
    $image = time().'.'.$ext;
    move_uploaded_file($_FILES["file"]["tmp_name"],__DIR__. ' \\'.$image);
  ?>

回答28:

UPLOAD FILES

<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);

        };

DOWNLOAD FILES:

          <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):/);

            }]);

回答29:

app.directive('ngUpload', function () {   
  return {    
    restrict: 'A',  
    link: function (scope, element, attrs) {

      var options = {};
      options.enableControls = attrs['uploadOptionsEnableControls'];

      // get scope function to execute on successful form upload
      if (attrs['ngUpload']) {

        element.attr("target", "upload_iframe");
        element.attr("method", "post");

        // Append a timestamp field to the url to prevent browser caching results
        element.attr("action", element.attr("action") + "?_t=" + new Date().getTime());

        element.attr("enctype", "multipart/form-data");
        element.attr("encoding", "multipart/form-data");

        // Retrieve the callback function
        var fn = attrs['ngUpload'].split('(')[0];
        var callbackFn = scope.$eval(fn);
        if (callbackFn == null || callbackFn == undefined || !angular.isFunction(callbackFn))
        {
          var message = "The expression on the ngUpload directive does not point to a valid function.";
          // console.error(message);
          throw message + "\n";
        }                      

        // Helper function to create new  i frame for each form submission
        var addNewDisposableIframe = function (submitControl) {
          // create a new iframe
          var iframe = $("<iframe id='upload_iframe' name='upload_iframe' border='0' width='0' height='0' style='width: 0px; height: 0px;
border: none; display: none' />");

          // attach function to load event of the iframe
          iframe.bind('load', function () {

              // get content - requires jQuery
              var content = iframe.contents().find('body').text();

              // execute the upload response function in the active scope
              scope.$apply(function () { callbackFn(content, content !== "" /* upload completed */); });

              // remove iframe
              if (content != "") // Fixes a bug in Google Chrome that dispose the iframe before content is ready.
                setTimeout(function () { iframe.remove(); }, 250);


              submitControl.attr('disabled', null);
              submitControl.attr('title', 'Click to start upload.');
            });

          // add the new iframe to application
          element.parent().append(iframe);
        };

        // 1) get the upload submit control(s) on the form (submitters must be decorated with the 'ng-upload-submit' class)
        // 2) attach a handler to the controls' click event
        $('.upload-submit', element).click(
          function () {

            addNewDisposableIframe($(this) /* pass the submit control */);

            scope.$apply(function () { callbackFn("Please wait...", false /* upload not completed */); });



            var enabled = true;
            if (options.enableControls === null || options.enableControls === undefined || options.enableControls.length >= 0) {
              // disable the submit control on click
              $(this).attr('disabled', 'disabled');
              enabled = false;
            }

            $(this).attr('title', (enabled ? '[ENABLED]: ' : '[DISABLED]: ') + 'Uploading, please wait...');

            // submit the form
            $(element).submit();
          }
        ).attr('title', 'Click to start upload.');
      }
      else
        alert("No callback function found on the ngUpload directive.");     
    }   
  }; 
});



<form class="form form-inline" name="uploadForm" id="uploadForm"
ng-upload="uploadForm12"  action="rest/uploadHelpFile"  method="post"
enctype="multipart/form-data" style="margin-top: 3px;margin-left:
6px"> <button type="submit" id="mbUploadBtn" class="upload-submit"
ng-hide="true"></button> </form>

@RequestMapping(value = "/uploadHelpFile", method =
RequestMethod.POST)   public @ResponseBody String
uploadHelpFile(@RequestParam(value = "file") CommonsMultipartFile[]
file,@RequestParam(value = "fileName") String
fileName,@RequestParam(value = "helpFileType") String
helpFileType,@RequestParam(value = "helpFileName") String
helpFileName) { }

来源：https://stackoverflow.com/questions/18571001/file-upload-using-angularjs

标签

angularjs

angularjs-fileupload

File Upload using AngularJS

问题

回答1:

回答2:

回答3:

回答4:

回答5:

回答6:

回答7:

回答8:

HTML

Scripts

回答9:

Working Demo of return-files Directive that Works with ng-model1

$http.post from a FileList

回答10:

回答11:

ng-file-upload

回答12:

回答13:

回答14:

回答15:

回答16:

回答17:

回答18:

回答19:

回答20:

回答21:

回答22:

回答23:

回答24:

回答25:

回答26:

回答27:

回答28:

回答29:

Working Demo of `return-files` Directive that Works with `ng-model`¹

`$http.post` from a FileList