Django admin后台显示图片缩略图

直接上代码

定义一个upload_img来返回显示图片的html
定义显示图片说明和allow_tags
mark_safe方法于django.utils.safestring导入

from django.utils.safestring import mark_safe
from django.contrib import admin

@admin.register(AliOSSFile)
class AliOssUploadAdmin(admin.ModelAdmin):
    def upload_img(self, obj):
        try:
            img = mark_safe('' % (obj.file.url,))
        except Exception as e:
            img = ''
        return img
    upload_img.short_description = 'Thumb'
    upload_img.allow_tags = True

    list_display = ['id', 'ali_id', 'file', 'upload_img', 'created_time']
    readonly_fields = ['upload_img']