django图片上传

mysite2/settings.py

#设置图片的保存位置
MEDIA_ROOT = os.path.join(BASE_DIR,"static/media")

book/models.py

#英雄类
class HeroInfo(models.Model):
    ...
    #英雄图片 默认上传到 dedia文件夹中 将图片放入images中
    hpic = mdoels.ImageField(upload_to="images/)

图片上传需要使用form表单 提交类型为post 并加入enctype="multipart/form-data"
book/hero_add.html

<form action="{% url "book:hero_add" %}" method="post" enctype="multipart/form-data">
    
    图片:<input name="hpic" type="file"><br/>

book/views.py

#利用UUID生成不重复的图片名，避免上传相同的名字的图片被覆盖
def do_file_name(file_name):
    return str(uuid.uuid1())+os.path.splitext(file_name)[1]

def hero_add(request):
    ...
    hpic = request.FILES["hpic"]
    # 审核上传文件大小 超过30K不能上传
    if hpic.size > 1024 * 30:
        return render(request, "book/hero_add.html", {"error_link": "文件最大不超过30K"})
    # 保存到本地
    hpic_chunks = hpic.chunks()
    # 文件保存的路径
    file_name = os.path.join("images", do_file_name(hpic.name))
    file_path = os.path.join(settings.MEDIA_ROOT, file_name)
    # 写
    with open(file_path, "wb")as file:
        for chunk in hpic_chunks:
            file.write(chunk)
    hero = HeroInfo()
    ...
    hero.hpic = file_name
    hero.save()
    return render(request, "book/hero_add.html",{"ok_link": "已添加成功，你可以继续添加或返回英雄列表页"})