如何解决尝试提交时表单请求烧瓶错误
我是 Flask 的初级程序员，遇到了一个问题，但我的代码却看不到这个问题。
在登录文件中，我有一个表单，它会向 /check 发送一个请求，但我收到了一个类似的错误：The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
代码如下：
from flask import Flask,render_template,request,url_for,redirect
from models.Data_Base import DataBase
app = Flask(__name__)
db = DataBase()
@app.route('/')
def main_page_render():
return render_template('home.html')
@app.route('/login')
def login_page_render():
return render_template('login.html')
@app.route('/check')
def check_page_render():
print('{} {}'.format(request.form['user_name'],request.form['password']))
if request.form['user_name'] == 'admin' and request.form['password']:
return redirect(url_for('admin_page_render'))
elif db.verify_login(request.form['user_name'],request.form['password']) == True:
return redirect('/fighter/{}'.format(request.form['user_name']))
@app.route('/admin')
def admin_page_render():
return 'Admin Page'
@app.route('/fighter/<username>')
def fighter_page_render(username):
return 'fighter page'
@app.route('/register')
def register_page_render():
return render_template('register.html')
if __name__ == '__main__':
app.run()
<!DOCTYPE html>
<html lang="en">
<head>
<Meta charset="UTF-8">
<title>login_page</title>
</head>
<body>
<h2>Login Page</h2>
<form action="/check">
<label for="user_name">User name:</label><br>
<input type="text" id="user_name" name="user_name"><br>
<label for="password">Password:</label><br>
<input type="password" id="password" name="password"><br><br>
<input type="submit" value="Submit">
</form>
<p>Click submit in order to get to your account</p>
</body>
</html>
解决方法
解决方案可以是这样，尝试进行这些更改。
app.py
...
@app.route('/check',methods=["GET","POST"])
def check_page_render():
print('{} {}'.format(request.form['user_name'],request.form['password']))
if request.form['user_name'] == 'admin' and request.form['password']:
return redirect(url_for('admin_page_render'))
elif db.verify_login(request.form['user_name'],request.form['password']) == True:
return redirect('/fighter/{}'.format(request.form['user_name']))
...
/templates/home.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>login_page</title>
</head>
<body>
<h2>Login Page</h2>
<form action="/check" method="POST">
<label for="user_name">User name:</label><br>
<input type="text" id="user_name" name="user_name"><br>
<label for="password">Password:</label><br>
<input type="password" id="password" name="password"><br><br>
<input type="submit" value="Submit">
</form>
<p>Click submit in order to get to your account</p>
</body>
</html>
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