Question

这是烧瓶应用程序的Python代码：

from flask import Flask, render_template, request
from sqlalchemy import create_engine
import pymysql

db = create_engine("mysql+pymysql://root:H@r$h123@localhost:3306/database")
app = Flask(__name__)

@app.route("/")
def index():
    return render_template("index.html")

@app.route("/success", methods=["POST"])
def success():
    name = request.form.get("name")
    email = request.form.get("username")
    password = request.form.get("password")
    rpassword = request.form.get("rpassword")
    db.execute("INSERT INTO information(name, email, password, rpassword) 
    VALUES(name, email, password, rpassword)",
            {'name':name, 'email':email, 'password':password, 
   'rpassword':rpassword})
   return render_template("success.html", name=name)

这是HTML代码

<form id="sign" action="{{url_for('success')}}" method="POST">
    Name:            <input type="text" name="name"><br><br>
    Email:           <input type="text" name="username"><br><br>
    Password:        <input type="password" name="password"><br><br>
    Confirm-Password:<input type="password" name="rpassword"><br><br>
    <input type="Submit" name="submit" value="Sign Up">
</form>

每当我尝试使用HTML表单添加数据时，我都可以成功输入数据，并且success.html也会加载，但数据不会在MySQL中显示

任何建议??

Answer 1

请阅读文档。 https://www.python.org/dev/peps/pep-0249/#paramstyle

可能对于关键字参数应使用：

"INSERT INTO information(name, email, password, rpassword) VALUES(%(name)s, %(email)s, %(password)s, %(rpassword)s)"

Answer 2

当它是DML命令时，您需要提交。

https://docs.sqlalchemy.org/en/latest/core/connections.html#using-the-threadlocal-execution-strategy

try:
    db.execute(...)
    db.commit()
except:
    db.rollback()

在python中使用HTML表单输入数据时未显示MySQL数据

2 个答案: