Spring boot+Angular Js+Bootstrap实现进度条代码有哪些？

<input type="file" data-ng-model="file">

<uib-progress data-ng-show="progress">
 <uib-bar value="progress" type="{{type}}" data-ng-bind="progress + '%'"/>
</uib-progress>
<span class="err" data-ng-show="isShowMsg" data-ng-bind="Msg"></span>
<button class="btn btn-primary" type="button" data-ng-click="upload()">确认</button>

Upload.upload(
    {
     url: "",
     data: {
      file: file
     },
     method: 'post'
    }).then(function (res) {
     //这里是success方法
     $scope.isShowMsg = true;
     $scope.Msg = res.data.msg;
     if($scope.Msg == "导入数据不符合格式要求！")
     $scope.type = "progress-bar progress-bar-danger progress-bar-striped";//设置进度条样式
     else {
      $scope.type = "progress-bar progress-bar-success progress-bar-striped";
      $scope.progress = 100;//上传成功之后，将进度条设置为100
     }

    }, function (){
    //这里是error方法
    }, function (){
    //这里是progress方法
    $scope.type = "progress-bar progress-bar-info progress-bar-striped";

    $http({
    url:"",
    method: "get"
    }).success(function (res) {
      $scope.progress = res;//绑定进度条的值
     })
    });

public Map<String, Object> batchModify(InputStream inputStream,HttpSession session) {
  Map<String, Object> res = new HashMap<>();
  Workbook workbook = null;
  try {
   workbook = Util.createWorkbook(inputStream);
  } catch (InvalidFormatException | IOException e) {
   e.printStackTrace();
  }
  session.setAttribute("progress", 5);//解析成功后我将进度设置为5
  Sheet sheet = workbook.getSheetAt(0);

  Map<String, Object> roleWithPages = new HashMap<>();
  for (int i = 1; i <= sheet.getLastRowNum(); i++) {
   Row r = sheet.getRow(i);
   if (r == null || r.getCell(0) == null || r.getCell(1) == null)
    continue;
   Set<Page> pages = null;
   if (roleWithPages.get(r.getCell(0).toString()) == null) {
    pages = new HashSet<>();
   } else {
    pages = (Set<Page>) roleWithPages.get(r.getCell(0).toString());
   }
   Page p = new Page();
   p.setId(Math.round(r.getCell(1).getNumericCellValue()));
   pages.add(p);
   roleWithPages.put(r.getCell(0).toString(), pages);
   session.setAttribute("progress", 5 + i*90/sheet.getLastRowNum());
   //我将处理文件主体进度总量设置为90（5是加上解析部分的进度)
  }

  List<Role> roles = new ArrayList<>();
  for (String rolename : roleWithPages.keySet()) {
   Role role = repo.findByName(rolename);
   role.setPages((Set<Page>) roleWithPages.get(rolename));
   roles.add(role);
  }
  repo.save(roles);
  session.setAttribute("progress", 100);//保存之后将进度设置为100
  res.put("msg", "数据导入成功!");
  return res;
 }

public int getProgress(HttpServletRequest request){
  return (int) request.getSession().getAttribute("progress");
 }