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Python-Django未读取javascript表单数据文件-堆栈溢出

顺晟科技

2022-10-19 12:40:36

90

因此，当我试图将文件发送到Django服务器时，会引发大量错误:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2972, in open
    fp.seek(0)
AttributeError: 'NoneType' object has no attribute 'seek'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 482, in thread_handler
    raise exc_info[1]
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 38, in inner
    response = await get_response(request)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 233, in _get_response_async
    response = await wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 444, in __call__
    ret = await asyncio.wait_for(future, timeout=None)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\asyncio\tasks.py", line 442, in wait_for
    return await fut
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\concurrent\futures\thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 486, in thread_handler
    return func(*args, **kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\TM\سطح المكتب\New folder\web\views.py", line 86, in makeAccountApi
    IMG=RESIZE(Image)
  File "C:\Users\TM\سطح المكتب\New folder\web\helpers.py", line 110, in RESIZE
    im = Image.open(Img)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2974, in open
    fp = io.BytesIO(fp.read())
AttributeError: 'NoneType' object has no attribute 'read'

当我打印request.body和请求文件以及请求post时，它打印:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2972, in open
    fp.seek(0)
AttributeError: 'NoneType' object has no attribute 'seek'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 482, in thread_handler
    raise exc_info[1]
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 38, in inner
    response = await get_response(request)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 233, in _get_response_async
    response = await wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 444, in __call__
    ret = await asyncio.wait_for(future, timeout=None)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\asyncio\tasks.py", line 442, in wait_for
    return await fut
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\concurrent\futures\thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 486, in thread_handler
    return func(*args, **kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\TM\سطح المكتب\New folder\web\views.py", line 86, in makeAccountApi
    IMG=RESIZE(Image)
  File "C:\Users\TM\سطح المكتب\New folder\web\helpers.py", line 110, in RESIZE
    im = Image.open(Img)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2974, in open
    fp = io.BytesIO(fp.read())
AttributeError: 'NoneType' object has no attribute 'read'

打印文件时，it console.log:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2972, in open
    fp.seek(0)
AttributeError: 'NoneType' object has no attribute 'seek'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 482, in thread_handler
    raise exc_info[1]
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 38, in inner
    response = await get_response(request)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 233, in _get_response_async
    response = await wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 444, in __call__
    ret = await asyncio.wait_for(future, timeout=None)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\asyncio\tasks.py", line 442, in wait_for
    return await fut
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\concurrent\futures\thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 486, in thread_handler
    return func(*args, **kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\TM\سطح المكتب\New folder\web\views.py", line 86, in makeAccountApi
    IMG=RESIZE(Image)
  File "C:\Users\TM\سطح المكتب\New folder\web\helpers.py", line 110, in RESIZE
    im = Image.open(Img)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2974, in open
    fp = io.BytesIO(fp.read())
AttributeError: 'NoneType' object has no attribute 'read'

之后是console.log:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2972, in open
    fp.seek(0)
AttributeError: 'NoneType' object has no attribute 'seek'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 482, in thread_handler
    raise exc_info[1]
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 38, in inner
    response = await get_response(request)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 233, in _get_response_async
    response = await wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 444, in __call__
    ret = await asyncio.wait_for(future, timeout=None)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\asyncio\tasks.py", line 442, in wait_for
    return await fut
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\concurrent\futures\thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 486, in thread_handler
    return func(*args, **kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\TM\سطح المكتب\New folder\web\views.py", line 86, in makeAccountApi
    IMG=RESIZE(Image)
  File "C:\Users\TM\سطح المكتب\New folder\web\helpers.py", line 110, in RESIZE
    im = Image.open(Img)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2974, in open
    fp = io.BytesIO(fp.read())
AttributeError: 'NoneType' object has no attribute 'read'

我也没有创建按钮来触发函数，所以我从控制台触发函数 在此处输入图像描述

在此处输入图像说明

----------代码部分： 对于请求函数:

对于sumbit函数:

以下是views.py:

的完整版本

以下是views.py:

的简化版本

请求函数

图像处理功能:

我的完整HTML代码:

顺晟科技：

不要将数据转换为字符串

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2972, in open
    fp.seek(0)
AttributeError: 'NoneType' object has no attribute 'seek'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 482, in thread_handler
    raise exc_info[1]
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 38, in inner
    response = await get_response(request)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 233, in _get_response_async
    response = await wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 444, in __call__
    ret = await asyncio.wait_for(future, timeout=None)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\asyncio\tasks.py", line 442, in wait_for
    return await fut
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\concurrent\futures\thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\asgiref\sync.py", line 486, in thread_handler
    return func(*args, **kwargs)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "C:\Users\TM\سطح المكتب\New folder\web\views.py", line 86, in makeAccountApi
    IMG=RESIZE(Image)
  File "C:\Users\TM\سطح المكتب\New folder\web\helpers.py", line 110, in RESIZE
    im = Image.open(Img)
  File "C:\Users\TM\AppData\Local\Programs\Python\Python39\lib\site-packages\PIL\Image.py", line 2974, in open
    fp = io.BytesIO(fp.read())
AttributeError: 'NoneType' object has no attribute 'read'

另外，不要设置multipart/form-data的content-type标头，它将自动正确地设置。 您使用的是同步ajax，这就是为什么您会得到反对警告。这将导致可怕的用户体验，尤其是在文件上传时。 如果希望保持代码的流畅，可以查看Async/await、Promises和Fetch API。

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