• Django2 + python3 上传图片


    .
    ├── db.sqlite3
    ├── manage.py
    ├── myImg
    │   ├── __init__.py
    │   ├── __pycache__
    │   │   ├── __init__.cpython-36.pyc
    │   │   ├── settings.cpython-36.pyc
    │   │   ├── urls.cpython-36.pyc
    │   │   └── wsgi.cpython-36.pyc
    │   ├── settings.py
    │   ├── urls.py
    │   └── wsgi.py
    ├── static
    │   └── media
    │       ├── 1493297157_517565.jpg
    │       ├── 3.png
    │       └── 6.png
    ├── templates
    │   └── myImg
    │       ├── showImg.html
    │       └── uploadPic.html
    └── upLoadImg
        ├── __init__.py
        ├── __pycache__
        │   ├── __init__.cpython-36.pyc
        │   ├── admin.cpython-36.pyc
        │   ├── models.cpython-36.pyc
        │   └── views.cpython-36.pyc
        ├── admin.py
        ├── apps.py
        ├── migrations
        │   ├── __init__.py
        │   └── __pycache__
        │       └── __init__.cpython-36.pyc
        ├── models.py
        ├── tests.py
        └── views.py

    这是一种简单的做法 不需要用到数据库

    setting.py中需要配置3个地方

    INSTALLED_APPS = [
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
        'upLoadImg',
    ]
    
    TEMPLATES = [
        {
            'BACKEND': 'django.template.backends.django.DjangoTemplates',
            'DIRS': [os.path.join(BASE_DIR, "templates")],
            'APP_DIRS': True,
            'OPTIONS': {
                'context_processors': [
                    'django.template.context_processors.debug',
                    'django.template.context_processors.request',
                    'django.contrib.auth.context_processors.auth',
                    'django.contrib.messages.context_processors.messages',
                ],
            },
        },
    ]
    
    STATIC_URL = '/static/'
    STATICFILES_DIRS=[os.path.join(BASE_DIR,'static')]
    MEDIA_ROOT=os.path.join(BASE_DIR,'static/media')

    urls.py

    from django.contrib import admin
    from django.urls import path
    # from myImg.uploadPic import views
    from upLoadImg import views
    
    urlpatterns = [
        path('admin/', admin.site.urls),
        path('uploadPic/',views.uploadPic),
        path('uploadHandle',views.uploadHandle)
    ]

    views.py

    from django.shortcuts import render
    from django.conf import settings
    from django.http import HttpRequest,HttpResponse
    import os
    # Create your views here.
    def uploadPic(request):
        return render(request,'myImg/uploadPic.html')
    
    def uploadHandle(request):
        if request.method == "POST":
            f1 = request.FILES['pic1']
            fname = os.path.join(settings.MEDIA_ROOT,f1.name)
            with open(fname,'wb+') as pic:
                for c in f1.chunks():
                    pic.write(c)
            return HttpResponse('<img src="/static/media/%s" width="500" height="500" alt="图片无法显示"/>'%f1.name) # 这里不给width和height会按图片本身分辨率显示
    
        else:
            return HttpResponse("error")
    
        #下面这个是直接显示路径
        # pic1 = request.FILES['pic1']
        # picName=os.path.join(settings.MEDIA_ROOT,pic1.name)
        # return HttpResponse(picName)#/Users/liuwei/myImg/static/media/6.png
        #file:///Users/liuwei/myImg/static/media/6.png
       

     upLoadPic.html

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    
    <form action="/uploadHandle" method="post" enctype="multipart/form-data">
        {% csrf_token %}
    <input type="file" name="pic1">
        <br>
        <input type="submit" value="上传">
    </form>
    </body>
    </html>

    那进入myImg/目录 运行

    python3 manage.py runserver

    在浏览器打开

    http://127.0.0.1:8000/uploadPic/

    碰到几个问题:

    1. 图片显示不了 那是因为setting .py中没有

    STATICFILES_DIRS=[os.path.join(BASE_DIR,'static')]

    2.上传不了 是因为 要用wb+ , 这个百度就可以了

    with open(fname,'wb+') as pic:
    此文仅为鄙人学习笔记之用,朋友你来了,如有不明白或者建议又或者想给我指点一二,请私信我。liuw_flexi@163.com/QQ群:582039935. 我的gitHub: (学习代码都在gitHub) https://github.com/nwgdegitHub/
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  • 原文地址:https://www.cnblogs.com/liuw-flexi/p/9356102.html
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