Python 3.x FLASK:即使执行已提交,表单中输入的新值也不会插入到数据库中 来自flask导入flask、jsonify、请求、url\u for、重定向、会话、呈现模板、g 导入sqlite3 app=烧瓶(名称) app.config['DATABASE']='./data.db' def connect_db(): path=r“C:\Users\Arjun\Documents\flask\u app\data.db” sql=sqlite3.connect(路径) sql.row\u factory=sqlite3.row 返回sql def get_db(): 如果不是hasattr(g,'sqlite3'): g、 sqlite_db=connect_db() 返回g.sqlite_db @app.teardown_appcontext def close_db(错误): 如果hasattr(g,'sqlite_db'): g、 sqlite_db.close() @app.route('/home',defaults={'name':'Default'}) @app.route(“/home/”) def home(姓名): 会话['name']=名称 返回render_模板('home.html',name=name,display=False,mylist=[1,2,3,4] @app.route('/theform5',methods=['GET','POST']) def theform5(): 如果request.method==“GET”: 返回呈现模板('form.html') 其他: name=请求。表单['name'] 位置=请求。表单['location'] db=get_db() db.execute(“插入用户(名称、位置)值(?,)”,[name,location]) db.commit() 返回重定向(url_表示('home',name=name,location=location)) @app.route(“/viewresults”) def viewresults(): db=get_db() cur=db.execute('select id,name,location from users') 结果=cur.fetchall() return'ID为{}。Name为{}。位置为{}。format(results[1]['ID'],results[1] ['name'],结果[1]['location'])
错误: 返回“ID为{}。名称为{}。位置为{}”。格式(结果[1]['ID'],结果[1]['Name'],结果[1]['location'])) 索引器:列表索引超出范围 虽然可以通过终端直接编辑表格,但在运行flask web app时无法编辑表格Python 3.x FLASK:即使执行已提交,表单中输入的新值也不会插入到数据库中 来自flask导入flask、jsonify、请求、url\u for、重定向、会话、呈现模板、g 导入sqlite3 app=烧瓶(名称) app.config['DATABASE']='./data.db' def connect_db(): path=r“C:\Users\Arjun\Documents\flask\u app\data.db” sql=sqlite3.connect(路径) sql.row\u factory=sqlite3.row 返回sql def get_db(): 如果不是hasattr(g,'sqlite3'): g、 sqlite_db=connect_db() 返回g.sqlite_db @app.teardown_appcontext def close_db(错误): 如果hasattr(g,'sqlite_db'): g、 sqlite_db.close() @app.route('/home',defaults={'name':'Default'}) @app.route(“/home/”) def home(姓名): 会话['name']=名称 返回render_模板('home.html',name=name,display=False,mylist=[1,2,3,4] @app.route('/theform5',methods=['GET','POST']) def theform5(): 如果request.method==“GET”: 返回呈现模板('form.html') 其他: name=请求。表单['name'] 位置=请求。表单['location'] db=get_db() db.execute(“插入用户(名称、位置)值(?,)”,[name,location]) db.commit() 返回重定向(url_表示('home',name=name,location=location)) @app.route(“/viewresults”) def viewresults(): db=get_db() cur=db.execute('select id,name,location from users') 结果=cur.fetchall() return'ID为{}。Name为{}。位置为{}。format(results[1]['ID'],results[1] ['name'],结果[1]['location']),python-3.x,sqlite,flask,Python 3.x,Sqlite,Flask,错误: 返回“ID为{}。名称为{}。位置为{}”。格式(结果[1]['ID'],结果[1]['Name'],结果[1]['location'])) 索引器:列表索引超出范围 虽然可以通过终端直接编辑表格,但在运行flask web app时无法编辑表格 浏览器:Chrome SQLite:v3.30.1 Python:v3.8.1 烧瓶:v1.1.1 您的home函数中的return语句出现语法错误。结尾处缺少“')。要运行db.execute,您必须首先设置光标: db=get_db()
- 浏览器:Chrome
- SQLite:v3.30.1
- Python:v3.8.1
- 烧瓶:v1.1.1
from flask import Flask, jsonify, request, url_for, redirect, session, render_template, g
import sqlite3
app = Flask(__name__)
app.config['DATABASE'] = './data.db'
def connect_db():
path = r"C:\Users\Arjun\Documents\flask_app\data.db"
sql = sqlite3.connect(path)
sql.row_factory = sqlite3.Row
return sql
def get_db():
if not hasattr(g, 'sqlite3'):
g.sqlite_db = connect_db()
return g.sqlite_db
@app.teardown_appcontext
def close_db(error):
if hasattr(g, 'sqlite_db'):
g.sqlite_db.close()
@app.route('/home', defaults={'name':'Default'})
@app.route('/home/<name>')
def home(name):
session['name'] = name
return render_template('home.html', name=name, display = False, mylist = [1,2,3,4]
@app.route('/theform5', methods=['GET', 'POST'])
def theform5():
if request.method == 'GET':
return render_template('form.html')
else:
name = request.form['name']
location = request.form['location']
db = get_db()
db.execute("insert into users (name, location) values (?, ?)", [name, location])
db.commit()
return redirect(url_for('home', name=name, location=location))
@app.route('/viewresults')
def viewresults():
db = get_db()
cur = db.execute('select id, name, location from users')
results = cur.fetchall()
return 'The ID is {}. Name is {}. The location is {}. '.format(results[1]['id'], results[1]
['name'], results[1]['location'])