angularJs上传文件（非form上传）

<input type="file" id="file{{$index}}" class="file" ngf-select ngf-change="cacScriptUploadVm.views.changeAttach($file,$index)">

　　　　function save() { ???????????console.log(vm.views.scriptList); ???????????var form = new FormData(); ???????????for (var i = 0; i < vm.views.scriptList.length; i++) { ???????????????var file = angular.element(".file")[i].files[0]; ???????????????form.append("files", file);//files和后台接收字段名称一样 ???????????} ???????????//传入出了file以外的实体 ???????????/* var scriptList = JSON.stringify(vm.views.scriptList); ???????????form.append("script", scriptList);*/ ???????????form.append("newDir","");//传一个字符串 ???????????cacScriptService.uploadFile(form); ??????????????????} ???????function changeAttach($file, $index) { ???????????if ($file != null && vm.views.scriptList.length > 0 && vm.views.scriptList.length >= $index) { ???????????????vm.views.files[$index] = $file; ???????????} ???????}

function uploadFile(form) { ???????????var url = _appconfig.apiBaseUrls.git + ‘/api/git/cac/upload‘; ???????????$http({ ???????????????method: ‘POST‘, ???????????????url: url, ???????????????data: form, ???????????????headers: {‘Content-Type‘: undefined}, ???????????????transformRequest: angular.identity, ???????????????transformResponse: function(data) { ?// 转换response,这样就能接收后台传回来String，默认接收是json。没写这个属性之前，上传成功后却返回到error，而且会报上面的错误，写了这个就不会 ???????????????????return data; ???????????????} ???????????}).success(function (data) { ???????????????console.log(‘upload success‘); ???????????}).error(function (data) { ???????????????console.log(‘upload fail‘); ???????????}); ???????}