在Bottle框架中使用html上传图片失败

Question

I am creating a simple web application, where you can upload your article along with an image, using bottle framework. 我正在创建一个简单的Web应用程序，您可以在这里使用Bottle框架将文章和图像一起上传。 The HTML code for the upload page is: 上传页面的HTML代码为：

<html>
    <body>
        <form action="/created" method="POST" encrypt="multipart/form-data">
            Title: <input type="text" name="title"><br>
            Body: <textarea rows = 10 name="body"></textarea><br>
            Choose image: <input type="file" name="image" ><br>
            <input type="submit" >
        </form>
    </body>
</html>

I want to store the article in mongodb database and so, I want to store the image in GridFS. 我想将文章存储在mongodb数据库中，因此，我想将图像存储在GridFS中。 The bottle framework code for the same is: 瓶子框架的代码同样是：

@post("/created")
def created():
    connect = pymongo.MongoClient(server_address)
    db = connect.practiceB3
    articles = db.articles

    title = request.forms.get('title')
    body = request.forms.get('body')


    fs = gridfs.GridFS(db)
    image = request.files.get('image')
    img_content = image.file.read()
    img_name = image.filename

    document = { "title":title,"body":body}

    articles.insert(document)

    fs.put(img_content,filename = img_name)
    return "Article successfully stored"

But when I run this code, I get the following error for the image section: 但是，当我运行此代码时，图像部分出现以下错误：

Error: 500 Internal Server Error

Sorry, the requested URL 'http://localhost:8080/created.html' caused an error:

Internal Server Error

Exception:

AttributeError("'NoneType' object has no attribute 'file'",)

Traceback:

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/bottle.py", line 862, in _handle
    return route.call(**args)
  File "/usr/local/lib/python2.7/dist-packages/bottle.py", line 1732, in wrapper
    rv = callback(*a, **ka)
  File "blogger.py", line 70, in created
    img_content = image.file.read()
AttributeError: 'NoneType' object has no attribute 'file'

I have run the exact same code on another machine and it worked perfectly. 我已经在另一台机器上运行了完全相同的代码，并且运行良好。 But on my laptop it fails. 但是在我的笔记本电脑上它失败了。 Thank you in advance. 先感谢您。

Answer 1

For your error, if request.files.get('image') have no index 'image' , it will return None (default behavior of dict.get() . 对于您的错误，如果request.files.get('image')没有索引'image' ，它将返回None （ dict.get()默认行为。

So the next line will fail image.file.read() . 因此，下一行将失败image.file.read() 。

Ensure your form do really send an image (with your browser webtools). 确保您的表单确实发送了图像（使用您的浏览器网络工具）。

在Bottle框架中使用html上传图片失败

问题描述

1 个解决方案

解决方案1
1 已采纳 2015-10-15 10:28:59

在Bottle框架中使用html上传图片失败

问题描述

1 个解决方案

解决方案1 1 已采纳 2015-10-15 10:28:59

解决方案1
1 已采纳 2015-10-15 10:28:59