django将图片保存到mysql数据库并展示在前端页面的实现
小编使用python中的django框架来完成！
1，首先用pycharm创建django项目并配置相关环境这里小编默认项目都会创建
settings.py中要修改的两处配置
DATABASES = { ’default’: {# ’ENGINE’: ’django.db.backends.sqlite3’,# ’NAME’: os.path.join(BASE_DIR, ’db.sqlite3’),’ENGINE’: ’django.db.backends.mysql’,’NAME’: ’photos’,’HOST’: ’127.0.0.1’,’PORT’: ’3306’,’USER’: ’root’,’PASSWORD’: ’201314’, }}STATIC_URL = ’/static/’STATICFILES_DIRS = [ os.path.join(BASE_DIR, ’static’)]2，创建表
①先按键盘上win+s键，然后输入cmd，中文输入法两下回车，英文输入法一下回车，即可进入dos窗口。
②输入 mysql -uroot -p密码 回车进入mysql数据库，再输入 create database 库名; 一个小回车，创建数据库🆗
③在app下的models.py中创建表结构
models.py
from django.db import models# Create your models here.class Images(models.Model): img = models.ImageField(upload_to=’static/pictures/’) # upload_to=’static/pictures/’是指定图片存储的文件夹名称，上传文件之后会自动创建 img_name = models.CharField(max_length=32) create_time = models.DateTimeField(auto_now_add=True)
④迁移数据库
分别按顺序在pycharm下面的Terminal中执行下面两条语句
python manage.py makemigrationspython manage.py migrate
urls.py
from django.conf.urls import urlfrom django.contrib import adminfrom app01 import viewsurlpatterns = [ url(r’^admin/$’, admin.site.urls), url(r’^upload/$’, views.upload, name=’upload’),]
views.py
from django.shortcuts import render, redirectfrom app01 import models# Create your views here.def upload(request): error = ’’ if request.method == ’POST’:img = request.FILES.get(’img’)pic_name = img.nameif pic_name.split(’.’)[-1] == ’mp4’: error = ’暂不支持上传此格式图片！！！’else: models.Images.objects.create(img_name=pic_name, img=img) return redirect(’show’) return render(request, ’upload.html’, locals())
前端上传页面upload.html
<!DOCTYPE html><html lang='en'><head> <meta charset='UTF-8'> <title>上传照片</title></head><body><div style='height: 160px'> <form action='' method='post' enctype='multipart/form-data'>{% csrf_token %}<h1>上传图片页面</h1><table cellpadding='5px'> <tr><td>上传图片</td><td><input type='file' name='img'></td> </tr> <tr><td> <button>上传</button></td><td><strong style='color: red'>{{ error }}</strong></td> </tr></table> </form></div><div style='text-align: center;color: #2b542c;font-size: 20px;'> <a href='https://www.haobala.com/bcjs/ {% url ’show’ %} ' rel='external nofollow' >返回</a></div></body></html>
urls.py
'''from django.conf.urls import urlfrom django.contrib import adminfrom app01 import viewsurlpatterns = [ url(r’^admin/$’, admin.site.urls), url(r’^upload/$’, views.upload, name=’upload’), url(r’^show/$’, views.show, name=’show’),]
views.py
from django.shortcuts import render, redirectfrom app01 import models# Create your views here.def upload(request): error = ’’ if request.method == ’POST’:img = request.FILES.get(’img’)pic_name = img.nameif pic_name.split(’.’)[-1] == ’mp4’: error = ’暂不支持上传此格式图片！！！’else: models.Images.objects.create(img_name=pic_name, img=img) return redirect(’show’) return render(request, ’upload.html’, locals())def show(request): all_images = models.Images.objects.all() # for i in all_images: # print(i.img) return render(request, ’show.html’, locals())
前端展示show.html
<!DOCTYPE html><html lang='en'><head> <meta charset='UTF-8'> <title>展示照片</title></head><body>{% for image in all_images %} <img src='https://rkxy.com.cn/{{ image.img }}' style='width: 240px;height: 240px;'>{% endfor %}<br/><p style='text-align: center;color: #2b542c;font-size: 20px;'> <a href='https://www.haobala.com/bcjs/{% url ’upload’ %}' rel='external nofollow' rel='external nofollow' >返回</a></p></body></html>
urls.py
from django.conf.urls import urlfrom django.contrib import adminfrom app01 import viewsurlpatterns = [ url(r’^admin/$’, admin.site.urls), url(r’^upload/$’, views.upload, name=’upload’), url(r’^show/$’, views.show, name=’show’), url(r’^delete/$’, views.delete, name=’delete’),]
views.py
from django.shortcuts import render, redirectfrom app01 import models# Create your views here.def upload(request): error = ’’ if request.method == ’POST’:img = request.FILES.get(’img’)pic_name = img.nameif pic_name.split(’.’)[-1] == ’mp4’: error = ’暂不支持上传此格式图片！！！’else: models.Images.objects.create(img_name=pic_name, img=img) return redirect(’show’) return render(request, ’upload.html’, locals())def show(request): all_images = models.Images.objects.all() # for i in all_images: # print(i.img) return render(request, ’show.html’, locals())def delete(request): pk = request.GET.get(’pk’) models.Images.objects.filter(id=pk).delete() return redirect(’show’)
show.html
<!DOCTYPE html><html lang='en'><head> <meta charset='UTF-8'> <title>展示照片</title></head><body>{% for image in all_images %} <img src='https://rkxy.com.cn/{{ image.img }}' style='width: 240px;height: 240px;'> <a href='https://www.haobala.com/delete/?pk={{ image.id }}' rel='external nofollow' >删除</a>{% endfor %}<br/><p style='text-align: center;color: #2b542c;font-size: 20px;'> <a href='https://www.haobala.com/bcjs/{% url ’upload’ %}' rel='external nofollow' rel='external nofollow' >返回</a></p></body></html>
因为时间紧，故以最low方式简要实现，并没有加上漂亮的页面和样式，喜欢美的看客朋友可自行去Bootstrap官网或jq22自行添加！！！
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