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) { }

<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>

在angularJS控制器中

$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;
    }

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

最简单的是使用HTML5 API，即FileReader

HTML非常简单:

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

在你的控制器中定义'add'方法:

$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);
}

浏览器兼容性

桌面浏览器

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

移动浏览器

Firefox(壁虎)32, Chrome 3, 歌剧* 11.5, Safari 6.1

注意:readAsBinaryString()方法已弃用，应该使用readAsArrayBuffer()代替。

这里的一些答案建议使用FormData()，但不幸的是，这是一个浏览器对象，在Internet Explorer 9及以下版本中不可用。如果您需要支持这些旧浏览器，您将需要一个备份策略，例如使用<iframe>或Flash。

已经有很多Angular.js模块来执行文件上传。这两种浏览器都明确支持旧浏览器:

https://github.com/leon/angular-upload -使用iframes作为备份 https://github.com/danialfarid/ng-file-upload -使用FileAPI/Flash作为备份

还有一些其他的选择:

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

其中一个应该适合你的项目，或者可能会给你一些关于如何自己编写代码的见解。

我已经阅读了所有的线程，HTML5 API解决方案看起来最好。但它会改变我的二进制文件，以一种我没有调查过的方式破坏它们。最适合我的解决方案是:

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);
}

服务器端(PHP):

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