Python flask POST请求

Question

我用Python开发了一个应用，并使用了flask。这是一段代码片段，试图通过用户输入生成一条消息，然后将其附加到我的数据库中：

@app.route('/MakeMessage',methods = ['POST', 'GET'])
def MakeMessage():
   if request.method == 'POST':
       user_id = request.form['user_id']
       content = request.form['content']
       paticipants = [request.form['participant1'],request.form['participant2'],request.form['participant3']]
       m = Message(user_id=user_id,content=content,participants=paticipants)
       return redirect('/AddMessage',m = m)

@app.route('/AddMessage',methods = ['POST', 'GET'])
def AddMessage(m):
   if request.method == 'POST':
      db.session.add(m)
      db.session.commit()
      return 'Your message has been successfully saved'

我知道代码有问题，但是我不知道是什么。有什么主意吗？

Answer 1

AddMessage 

采用参数m因此，在app.route中，应将其更改为此

@app.route('/AddMessage/<m>')

Answer 2

from flask import redirect, url_for, request

@app.route('/MakeMessage',methods = ['POST', 'GET'])
def MakeMessage():
   if request.method == 'POST':
      ...
      return redirect(url_for('/AddMessage',m=m))

@app.route('/AddMessage/<m>',methods = ['POST', 'GET'])
def AddMessage(m):
   ...