第三百八十七节，Django+Xadmin打造上线标准的在线教育平台—网站上传资源的配置与显示

# 上传资源路径，如果图片，上传文件等
MEDIA_URL = ‘/media/‘                           # 设置上传资源前缀名称
MEDIA_ROOT = os.path.join(BASE_DIR, ‘media‘)    # 设置上传文件路径

class CourseOrg(models.Model):
    name = models.CharField(max_length=50, verbose_name=‘机构名称‘)
    desc = models.TextField(verbose_name=‘机构描述‘)
    category = models.CharField(max_length=20, verbose_name=‘机构类别‘, default=‘pxjg‘, choices=((‘pxjg‘, ‘培训机构‘), (‘gx‘, ‘高校‘), (‘gr‘, ‘个人‘)))
    click = models.IntegerField(default=0, verbose_name=‘点击数‘)
    fav_nums = models.IntegerField(default=0, verbose_name=‘收藏数‘)
    image = models.ImageField(upload_to=‘org/%Y/%m‘, verbose_name=‘封面图‘, max_length=100)
    address = models.CharField(max_length=150, verbose_name=‘机构地址‘)
    city = models.ForeignKey(CityDict, verbose_name=‘外键城市表‘)
    add_time = models.DateTimeField(default=datetime.now, verbose_name=‘添加日期‘)

    class Meta:
        verbose_name = ‘课程机构表‘
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

# -*- coding: UTF-8 -*-
from django.core.files.storage import FileSystemStorage
from django.http import HttpResponse

class ImageStorage(FileSystemStorage):
    from django.conf import settings
    
    def __init__(self, location=settings.MEDIA_ROOT, base_url=settings.MEDIA_URL):
        # 初始化
        super(ImageStorage, self).__init__(location, base_url)

    # 重写 _save方法        
    def _save(self, name, content):
        #name为上传文件名称
        import os, time, random
        # 文件扩展名
        ext = os.path.splitext(name)[1]
        # 文件目录
        d = os.path.dirname(name)
        # 定义文件名，年月日时分秒随机数
        fn = time.strftime(‘%Y%m%d%H%M%S‘)
        fn = fn + ‘_%d‘ % random.randint(0,100)
        # 重写合成文件名
        name = os.path.join(d, fn + ext)
        # 调用父类方法
        return super(ImageStorage, self)._save(name, content)

from system.storage import ImageStorage
pic=models.ImageField(upload_to=‘img/%Y/%m/%d‘,storage=ImageStorage())  #如果上传文件可以将ImageField换为FileField

from django.conf.urls import url, include                   # 导入django自在的include逻辑
from django.contrib import admin
from django.views.generic import TemplateView               # 导入django自带的TemplateView逻辑
from django.views.static import serve                       # 导入django自带的serve静态资源逻辑
import xadmin                                               # 导入xadmin

from app_users.views import deng_lu, zhu_ce, active_code, logout                 # 导入登录逻辑处理类
from app_organization.views import org_list                                      # 导入授课机构逻辑
from MxOnline.settings import MEDIA_ROOT


urlpatterns = [
    url(r‘^xadmin/‘, xadmin.site.urls),

    url(r‘^index.html‘, TemplateView.as_view(template_name=‘index.html‘), name=‘index‘),

    # 注册
    url(r‘^register.html‘, zhu_ce.as_view(), name=‘register‘),
    url(r‘^captcha/‘, include(‘captcha.urls‘), name=‘captcha‘),
    url(r‘^active/(?P<active_de>.*)/$‘, active_code.as_view(), name="user_active"),

    # 登录
    url(r‘^login.html‘, TemplateView.as_view(template_name=‘login.html‘), name=‘login‘),
    url(r‘^deng_lu‘, deng_lu.as_view(), name=‘deng_lu‘),
    url(r‘^logout‘, logout.as_view(), name=‘deng_lu‘),

    # 授课机构
    url(r‘^org_list.html‘, org_list.as_view(), name=‘org_list‘),

    # 专门处理静态资源请求映射，也就是media上传文件夹里的请求映射
    url(r‘media/(?P<path>.*)$‘, serve, {‘document_root‘: MEDIA_ROOT})　　# MEDIA_ROOT为配置上传文件的路径变量
]

                                <a href="org-detail-homepage.html">
                                    <img width="200" height="120" class="scrollLoading"
                                         data-url="{{ MEDIA_URL }}{{ ji.image }}"/>         {# 需要拼接静态资源路径 #}
                                </a>

TEMPLATES = [
    {
        ‘BACKEND‘: ‘django.template.backends.django.DjangoTemplates‘,
        ‘DIRS‘: [os.path.join(BASE_DIR, ‘templates‘)],                      # 配置模板文件路径，也就是html路径
        ‘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‘,
                ‘django.template.context_processors.media‘,                 # 配置html页面获取MEDIA_URL路径
            ],
        },
    },
]