# 上传图片
* 当Django在处理文件上传的时候，文件数据被保存在request.FILES
* FILES中的每个键为<input type="file" name="" />中的name
* 注意:FILES只有在请求的方法为post且提交的<form>带有enctype="multipart/form-data"的情况下才会包含数据。否则，FILES将为一个空的类似于字典的对象
* 使用模型处理上传文件:将属性定义成models.ImageFiled累心
```text
class UploadFile(models.Model):
picture = models.ImageField(upload_to='upfile/')
```
* 注意:如果属性类型为ImageField需要安装包Pilow
```text
pip insatll pillow
```
* 图片存储路径
* 在static目录下创建upfile文件夹
* 图片上传后，会保存到"/static/upfile"文件夹
* 打开settings.py文件，增加media\_root项
```text
# 上传文件目录
MDETA_ROOT = os.path.join(BASE_DIR,r'static/upfile')
```
* 使用django后台管理，遇到imageField类型的属性会出现一个file框，完成文件上传
```text
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form method="post" action="{% url 'myapp:savefile' %}" enctype="multipart/form-data">
{% csrf_token %}
<input type="file" name="file"/><br />
<input type="submit" value="submit"/>
</form>
</body>
</html>
```
配置路由:
```text
from django.conf.urls import url,include
from . import views
app_name = 'myapp'
urlpatterns = [
url(r'^index/$',views.index),
url(r'^upfile/$',views.upfile,name="upfile"),
url(r'^savefile/$',views.savefile,name='savefile'),
]
```
配置视图
```text
from django.http import HttpResponse
from django.shortcuts import render
# Create your views here.
def index(request):
return render(request,'index.html')
def upfile(request):
return render(request,'upfile.html')
import os
from test4.settings import *
def savefile(request):
if request.method == 'POST':
f = request.FILES['file']
# 合成文件在服务器端的路径
# 1
filePath = os.path.join(MDETA_ROOT,f.name)
# 2
` # filePath = os.path.join(MDETA_ROOT+"/image",f.name)
with open(filePath,'wb') as fp:
for info in f.chunks():
fp.write(info)
return HttpResponse("上传成功")
```
