浅析Django 接收所有文件,前端展示文件(包括视频,文件,图片)ajax请求
如果是后台上传文件:
setting配置:
STATIC_URL = ’/static/’STATICFILES_DIRS = [ os.path.join(BASE_DIR, ’static’), os.path.join(BASE_DIR, 'media'),]# Django用户上传的都叫media文件MEDIA_URL = '/media/'# media配置,用户上传的文件都默认放在这个文件夹下MEDIA_ROOT = os.path.join(BASE_DIR, 'media')model的配置: img = models.FileField(upload_to='img/',verbose_name='图片')
接收任何文件的前端代码:
<!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' /> <input type='button' value='提交' onclick='upload()'/></form><br><br><br><br><div>显示图片 <img id='images'></div><br><br><br><br><div>显示路径 <a href='https://www.haobala.com/bcjs/17526.html' id=' rel='external nofollow' imagess'>链接</a></div></div><br><br><br><br><div> {# href='https://www.haobala.com/static/img/TC代码.txt' rel='external nofollow' #} <a id='up'> 下载文件</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); $.ajax({ url: 'upload/', type: 'post', data: formData, dataType: 'json', cache: false, //上传文件无需缓存 processData: false,//用于对data参数进行序列化处理 这里必须false contentType: false, //必须*/ success: function (data) {console.log('22', data);$('#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>
增加任何文件的后端接口代码:
from rest_framework.views import APIViewfrom django.shortcuts import render, redirect, HttpResponsefrom dal import modelsfrom django.http import JsonResponseclass 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 # 返还路径 return JsonResponse(message)
下载文件后端:
from django.utils.http import urlquotefrom rest_framework.views import APIViewfrom django.shortcuts import render, redirect, HttpResponsefrom dal import modelsfrom django.http import JsonResponse, FileResponse, StreamingHttpResponseclass fileShow(APIView): def get(self, request): message = {} file = open(’media/img/TC代码.txt’,’rb’) # 字符串替换成文件 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代码.txt')) # 字符串替换成下载文件 print(response) return response
总结
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