如何将 json 传递给 render_to_response

Question

我正在尝试通过 render_to_response 将一个 json 文件传递给前端。前端不是 django 模板，它是用 JS、HTML 等编码的。我遇到了一些奇怪的错误。任何人都可以帮助我。我附上了代码和回溯。return render_to_response('ModelView.html', json.dumps(newDict))Traceback (most recent call last):  File "C:\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\exception.py", line 35, in inner    response = get_response(request)  File "C:\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\base.py", line 128, in _get_response    response = self.process_exception_by_middleware(e, request)  File "C:\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\base.py", line 126, in _get_response    response = wrapped_callback(request, *callback_args, **callback_kwargs)  File "C:\PythonWorkspace\ScApp\ScApp2\views.py", line 78, in ScorecardApp20    return render_to_response('ModelView.html', json.dumps(newDict))  File "C:\Users\kxc89\AppData\Local\Programs\Python\Python37\lib\site-packages\django\shortcuts.py", line 27, in render_to_response    content = loader.render_to_string(template_name, context, using=using)  File "C:\AppData\Local\Programs\Python\Python37\lib\site-packages\django\template\loader.py", line 62, in render_to_string    return template.render(context, request)  File "C:\AppData\Local\Programs\Python\Python37\lib\site-packages\django\template\backends\django.py", line 59, in render    context = make_context(context, request, autoescape=self.backend.engine.autoescape)  File "C:\AppData\Local\Programs\Python\Python37\lib\site-packages\django\template\context.py", line 274, in make_context    raise TypeError('context must be a dict rather than %s.' % context.__class__.__name__)TypeError: context must be a dict rather than str.

Answer 1

不要使用render_to_response，它已经过时了。使用render来代替。

return render(request, 'ModelView.html', {'new_dict': json.dumps(newDict)})

第三个参数必须是字典，因此您可以像我上面所做的那样将 json 字符串添加到字典中，或者您可能根本不想使用json.dumps()而只使用newDict.

Answer 2

使用下面的代码

import json

data = open('/static/JsonFile.json').read() #opens the json file and saves the raw contents

JsonData = json.dumps(data) #converts to a json structure

context = {'obj': JsonData}

return render(request, 'templates', context)

希望它应该工作！