def mgmt_files(request): #列出树形目录，上传文件页面    if request.method == ‘POST‘:        path_root = "D:\\py\\ITFiles" #上传文件的主目录        myFile =request.FILES.get("file", None)    # 获取上传的文件，如果没有文件，则默认为None          if not myFile:              dstatus = "请选择需要上传的文件!"        else:            path_ostype = os.path.join(path_root,request.POST.get("ostype"))            path_dst_file = os.path.join(path_ostype,myFile.name)            # print path_dst_file            if os.path.isfile(path_dst_file):                dstatus = "%s 已存在!"%(myFile.name)            else:                destination = open(path_dst_file,‘wb+‘)    # 打开特定的文件进行二进制的写操作                  for chunk in myFile.chunks():      # 分块写入文件                      destination.write(chunk)                  destination.close()                  dstatus = "%s 上传成功!"%(myFile.name)        return HttpResponse(str(dstatus))    return render(request,‘sinfors/mgmt_files.html‘)def mgmt_file_download(request,*args,**kwargs): #提供文件下载页面    #定义文件分块下载函数     def file_iterator(file_name, chunk_size=512):        with open(file_name,‘rb‘) as f: #如果不加‘rb’以二进制方式打开，文件流中遇到特殊字符会终止下载，下载下来的文件不完整            while True:                c = f.read(chunk_size)                if c:                    yield c                else:                    break    path_root = "D:\\py\\ITFiles"    if kwargs[‘fpath‘] is not None and kwargs[‘fname‘] is not None:        file_fpath = os.path.join(path_root,kwargs[‘fpath‘]) #kwargs[‘fapth‘]是文件的上一级目录名称        file_dstpath = os.path.join(file_fpath,kwargs[‘fname‘]) #kwargs[‘fname‘]是文件名称        response = StreamingHttpResponse(file_iterator(file_dstpath))        response[‘Content-Type‘] = ‘application/octet-stream‘        response[‘Content-Disposition‘] = ‘attachment;filename="{0}"‘.format(kwargs[‘fname‘]) #此处kwargs[‘fname‘]是要下载的文件的文件名称        return response

 <form id="uploadForm" enctype="multipart/form-data"> //文件上传的form            {% csrf_token %}            <input id="file" type="file" name="file" > //上传文件            <input type="radio" name="ostype" value="Windows" />Windows             <input type="radio" name="ostype" value="Linux" />Linux            <input type="radio" name="ostype" value="Network" />Network            <input type="radio" name="ostype" value="DB" />DB            <button id="upload" type="button" style="margin:20px">上传</button>
 </form>

  $("#upload").click(function(){    // alert(new FormData($(‘#uploadForm‘)[0]));    var ostype = $(‘input:radio:checked‘).val()    if (ostype == undefined){      alert(‘请选择上传的文件类型‘);    }     //获取单选按钮的值    $.ajax({            type: ‘POST‘,            // data:$(‘#uploadForm‘).serialize(),            data:new FormData($(‘#uploadForm‘)[0]),            processData : false,               contentType : false, //必须false才会自动加上正确的Content-Type              // cache: false,            success:function(response,stutas,xhr){              // parent.location.reload();              //window.location.reload();              // alert(stutas);              alert(response);            },            // error:function(xhr,errorText,errorStatus){            //   alert(xhr.status+‘ error: ‘+xhr.statusText);            // }            timeout:6000        });  });