尝试获取标头值时出现关键错误

Question

I am just trying to request a form value in flask. 我只是想在flask中请求一个表单值。 Something i have done many times before with no issue but I cannot figure out why I am getting this key error. 我之前做了很多次都没问题，但是我无法弄清楚为什么会出现这个关键错误。

I have tried many things like switching from a get request to a post request but nothing seems to be working. 我尝试了很多事情，例如从get请求切换到post请求，但似乎没有任何效果。

App Route: 应用程序路线：

@app.route('/Exercise', methods = ['GET'])
def exercise():
    test = request.form["title"]
    print(test)
    if test != None:
        info = select(["*"],"Exercises",["Name"],"And",[test])
        print(info)
    return render_template('exercise.html')

HTML: HTML：

<body>
<form>
  <h2 class="head" id="name" name="title"></h2>
  <p class="lead">Details</p>
</form>

</body>
<script type="text/javascript" src="static/js/exercise.js"></script>
</html>

Answer 1

Ok so thanks to PRMoureu I discovered I needed to make the called url contain the field I wanted to get with flask. 好的，所以感谢PRMoureu，我发现我需要使被调用的url包含我想通过flask获得的字段。 Example below: window.location.href = "/Exercise?title="+name; 下面的示例：window.location.href =“ / Exercise？title =” + name;

Thanks for the help much appreciated 感谢您的帮助，不胜感激

Answer 2

Since you're supporting the GET method only try accessing your title key like so: 由于您支持GET方法，因此请仅尝试访问您的title键，如下所示：

request.args.get('title')

instead of test = request.form["title"] as this is the way you would access the title key in a POST method. 而不是test = request.form["title"]因为这是您在POST方法中访问title键的方式。

Hopefully that helps! 希望有帮助！

尝试获取标头值时出现关键错误

问题描述

2 个解决方案

解决方案1
1 已采纳 2019-08-13 19:55:59

解决方案2
0 2019-08-13 17:29:27

尝试获取标头值时出现关键错误

问题描述

2 个解决方案

解决方案1 1 已采纳 2019-08-13 19:55:59

解决方案2 0 2019-08-13 17:29:27

解决方案1
1 已采纳 2019-08-13 19:55:59

解决方案2
0 2019-08-13 17:29:27