我有下面的python代码：

@restServer.route("/sendData", methods=['POST'])
def client():
ID = request.form.get('ID')
name = request.form.get('name')
postcode = request.form.get('postcode')
dateofbirth = request.form.get('dateofbirth')
balance = request.form.get('balance')
description = request.form.get('description')

insert_stmt = (
    "INSERT INTO clients (ID, name, postcode, dateofbirth, balance, description) "
    "VALUES (%s, %s, %s, %s, %s, %s)"

)
data = (ID, name, postcode, dateofbirth, balance, description)
cursor.execute(insert_stmt, data)
conn.commit()
print("Did we do it?")
return jsonify(data)

我还有下面的html代码：

<form method="POST">
         <p>ID of your Avenger:</p> <input type="number" id="ID" required> 
       <p>Name of your Avenger:</p> <input type="text" id="name" required> 
         <p>Post Code of your Avenger:</p> <input type="text" id="postcode" required> 
          <p>Date of Birth of your Avenger:</p> <input type="date" id="dateofbirth" required> 
          <p>Bank balance of your Avenger:</p> <input type="number" id="balance" required> 
          <p>Description of your Avenger:</p> <input type="text" id="description" required> 

        <button class="button1" type="button" id="hashButton" onclick="nameInput()">Submit</button></form>

最后是下面的javascript代码：

function nameInput() {
   var words = document.getElementById("ID", "name", "postcode", "dateofbirth", "balance", "description" ).value;
  var xhttp = new XMLHttpRequest();
  xhttp.onreadystatechange = function() {
  if(this.readyState == 4 && this.status == 200) {
  var json = JSON.parse(this.responseText);
  document.getElementById("nameInputReturn").innerHTML = 
  json.name;
  }
  }

        xhttp.open("POST", "http://127.0.0.1:5000/sendData", true);
        xhttp.setRequestHeader("Content-type", "application/x-www-form- 
 urlencoded");
        xhttp.send(words);
    }

我正在努力使它，以便您可以输入数据到表单中，然后它会上传到数据库中的数据。我已经知道如何输入我在代码中指定的数据，只需更改 data = (ID, name, postcode, dateofbirth, balance, description) 线路。当前，单击submit按钮，但数据库只添加一行，该行的每一列都为null。
我对 flask 还很陌生，所以非常感谢您的帮助！