1. 程式人生 > 程式設計 >淺析Django 接收所有檔案,前端展示檔案(包括視訊,檔案,圖片)ajax請求

淺析Django 接收所有檔案,前端展示檔案(包括視訊,檔案,圖片)ajax請求

如果是後臺上傳檔案:

setting配置:

STATIC_URL = '/static/'
STATICFILES_DIRS = [
  os.path.join(BASE_DIR,'static'),os.path.join(BASE_DIR,"media"),]
# Django使用者上傳的都叫media檔案
MEDIA_URL = "/media/"
# media配置,使用者上傳的檔案都預設放在這個資料夾下
MEDIA_ROOT = os.path.join(BASE_DIR,"media")

model的配置:
 img = models.FileField(upload_to="img/",verbose_name="圖片")

接收任何檔案的前端程式碼:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<form method="post" action="/upload/" enctype="multipart/form-data" target="ifm1">


  <input type="file" name="file" id="file"/>


  <input type="button" value="提交" onclick="upload()"/>
</form>
<br>
<br>
<br>
<br>
<div>顯示圖片
  <img id="images">
</div>
<br>
<br>
<br>
<br>
<div>顯示路徑
  <a href="" id=" rel="external nofollow" imagess">連結</a>
</div>

</div>
<br>
<br>
<br>
<br>
<div>
  {#  href="/static/img/TC程式碼.txt" rel="external nofollow" #}
  <a id="up"> 下載檔案</a>
</div>

<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>

<script>
  function upload() {
    var formData = new FormData();
    var file = document.getElementById('file').files[0];
    formData.append("file",file);
    $.ajax({
      url: "upload/",type: "post",data: formData,dataType: "json",cache: false,//上傳檔案無需快取
      processData: false,//用於對data引數進行序列化處理 這裡必須false
      contentType: false,//必須*/
      success: function (data) {
        console.log("22",data);
        $("#images").attr("src",data.image)
        $("#imagess").attr("href",data.image)

      }
    });
  }
  $("#up").on("click",function () {
    $.ajax({
      url: "http://127.0.0.1:8000/down/",type: "get",data: {},success: function (data) {
        var $a = $('<a></a>');

        $a.attr("href","http://127.0.0.1:8000/down/");
        $("body").append($a);
        $a[0].click();
        $a.remove();
      }

    })

  });
</script>
</body>
</html>

增加任何檔案的後端介面程式碼:

from rest_framework.views import APIView
from django.shortcuts import render,redirect,HttpResponse
from dal import models
from django.http import JsonResponse

class ImageShow(APIView):

  def post(self,request):
    name = str(request.data.get("name"))
    message = {}

    img_url = "/static/img/{}".format(name)

    obj = models.Car.objects.filter(img_url=img_url).first()
    if obj :

      message['code'] = 200
      message['message'] = img_url # 返還路徑
      return JsonResponse(message)

下載檔案後端:

from django.utils.http import urlquote
from rest_framework.views import APIView
from django.shortcuts import render,HttpResponse
from dal import models
from django.http import JsonResponse,FileResponse,StreamingHttpResponse


class fileShow(APIView):

  def get(self,request):
    message = {}
    file = open('media/img/TC程式碼.txt','rb')  # 字串替換成檔案 
    print("file",file.name)
    # file_names = file.name.split('/')[-1]
    # print("file_names",file_names)

    response = FileResponse(file)
    response['Content-Type'] = 'application/octet-stream'

    response['Content-Disposition'] = "attachment;filename={}".format(urlquote("TC程式碼.txt")) # 字串替換成下載檔案
    print(response)
    return response

總結

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