6.3 前端代码6.3.1 服务层
（1）在 pinyougou-shop-web 工程创建 uploadService.js

//文件上传服务层app.service("uploadService",function($http){this.uploadFile=function(){var  formData=new  FormData(); formData.append("file",file.files[0]); return  $http({method:'POST', url:"../upload.do", data:  formData,headers:  {'Content-Type':undefined}, transformRequest:  angular.identity});}});anjularjs 对于 post 和 get 请求默认的 Content-Type header 是 application/json。通过设置‘Content-Type’: undefined，这样浏览器会帮我们把 Content-Type  设置为   multipart/form-data.

通过设置 transformRequest: angular.identity ，anjularjs transformRequest function 将序列化我们的 formdata object.

（2）将 uploadService 服务注入到 goodsController 中

//商品控制层（商家后台）

app.controller('goodsController'  ,function($scope,$controller        ,goodsService,itemCa tService,uploadService){
（3）在 goods_edit.html 引入 js

<script  type="text/javascript"  class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="../js/base.js">    </script><script  type="text/javascript"  class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="../js/service/goodsService.js">    </script><script  type="text/javascript"  class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="../js/service/itemCatService.js">    </script><script  type="text/javascript"  class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="../js/service/uploadService.js">    </script><script  type="text/javascript"  class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="../js/controller/baseController.js">    </script><script  type="text/javascript"  class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="../js/controller/goodsController.js">    </script>