使用virtualenv与python3,Flask和sqlite3从一个非常基本的网页查询数据库。我无法插入输入主页上字段的数据。 /what_the_f
页面一直显示"失败"。我究竟做错了什么?我怀疑是try: cursor.excecute
,但我不知道为什么这不起作用以及如何修复它以便将home.html页面中输入的文本和整数插入到数据库中。
数据库初始化文件:
import sqlite3
connection = sqlite3.connect('database.db')
connection.execute('CREATE TABLE movies (title TEXT, rating INTEGER)')
connection.close()
手动创建数据库:
(venv) Tue Mar 07 18:42:38$ python initdb.py
python脚本:
from flask import Flask, render_template, request
import sqlite3
app = Flask(__name__)
@app.route('/')
def home():
return render_template('home.html')
@app.route('/what_the_f', methods = ['POST'])
def movie():
connection = sqlite3.connect('database.db')
cursor = connection.cursor # <-------------- LOOKIE THERE!
title = request.form['title']
rating = request.form['rating']
try:
cursor.execute('INSERT INTO movies (title,rating) VALUES (?,?)', (title,rating))
connection.commit()
message = "success"
except:
connection.rollback()
message = "failure"
finally:
connection.close()
return message
/templates/home.html文件:
<!DOCTYPE html>
<html>
<head>
<title>WTF? TEST</title>
</head>
<body>
<h1>WTactualF??</h1>
<form action="/what_the_f" method="POST">
<input name="title" />
<input name="rating" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
我刚收到Flask服务器的这份报告:
127.0.0.1 - - [07/Mar/2017 18:53:02] "POST /what_the_f HTTP/1.1" 200 -
在调试模式下运行Flask,当我从服务器退出时,我得到了这个:
OSError: [Errno 9] Bad file descriptor
答案 0 :(得分:1)
哦,我的......找到了。我有
cursor = connection.cursor
它应该 - 当然 - 应该是
cursor = connection.cursor()
......我现在会羞于羞辱。请不要看我。