Django之文件上传

亦凉 2022-03-11 08:38 253阅读 0赞

**一、简单的文件（图片）上传**  
1、url

urlpatterns = [
        url(r'^admin/', admin.site.urls),
        url(r'^upload/', views.Upload.as_view()),
    ]

2、views函数（这里用的CBV）

from django.shortcuts import render, HttpResponse
    from django.views import View
    
    class Upload(View):
        def get(self, request):
            return render(request, 'upload.html')
    
        def post(self, request):
        	user = request.POST.get('user')
            img = request.FILES.get('img')
            f = open(img.name, 'wb')
            for line in img.chunks():
                f.write(line)
            f.close()
            return HttpResponse('上传成功')

3、HTML

<form action="/upload/" method="post" enctype="multipart/form-data">
        {% csrf_token %}
        <input type="text" name="user">
        <input type="file" name="img">
        <input type="submit" name="提交">
    </form>

**二、自定义上传按钮**  
将“一”中的HTML改为

<form action="/upload/" method="post" enctype="multipart/form-data">
        {% csrf_token %}
        <input type="text" name="user">
        <div style="position: relative">
            <a>上传</a>
            <input type="file" name="img" style="opacity: 0;position: absolute;top: 0;left: 0">
        </div>
        <input type="submit" name="提交">
    </form>

**三、用Form组件上传**  
把“一”中的views改为

from django.shortcuts import render, HttpResponse
    from django.views import View
    from django import forms
    from django.forms import fields
    
    class UploadForm(forms.Form):
        user = fields.CharField()
        img = fields.FileField()
    
    class Upload(View):
        def get(self, request):
            return render(request, 'upload.html')
    
        def post(self, request):
            obj = UploadForm(request.POST, request.FILES)
            if obj.is_valid():
                user = obj.cleaned_data['user']
                img = obj.cleaned_data['img']
                f = open(img.name, 'wb')
                for line in img.chunks():
                    f.write(line)
                f.close()
                return HttpResponse('上传成功')