Flask错误：“不允许使用方法所请求的URL不允许使用该方法”

Z时代
2024-01-10
分类：问答

每当我尝试将数据提交到Flask表单时，都会出现以下错误：

Method Not Allowed The method is not allowed for the requested URL.

我认为问题出在return redirect(url_for('database'))我正在做。我也尝试return

render_template('database.html)过。表单项提交到数据库后，我正在尝试调用数据库页面。

我的代码的相关部分如下：

@app.route('/entry', methods=['GET', 'POST'])
def entry_page():
    if request.method == 'POST':
        date = request.form['date']
        title = request.form['blog_title']
        post = request.form['blog_main']
        post_entry = models.BlogPost(date = date, title = title, post = post)
        db.session.add(post_entry)
        db.session.commit()
        return redirect(url_for('database'))
    else:
        return render_template('entry.html')
@app.route('/database')        
def database():
    query = []
    for i in session.query(models.BlogPost):
        query.append((i.title, i.post, i.date))
    return render_template('database.html', query = query)

entry.html是…

THIS IS THE BLOG ENTRY PAGE
blog:
<html>
    <form action='/database' method = "post">
        date<input name = "date" type = "text" class="text">
        title<input name = "blog_title" type = "text" class="text">
        main<input name = "blog_main" type = "text" class="text">
        <input type = "submit">
    </form> 
</html>

和database.html …

THIS IS THE QUERY:
{{query}}

回答：

这里发生的是数据库路由不接受任何url方法。

我会尝试将url方法放在应用程序路由中，就像在entry_page函数中一样：

@app.route('/entry', methods=['GET', 'POST'])
def entry_page():
    if request.method == 'POST':
        date = request.form['date']
        title = request.form['blog_title']
        post = request.form['blog_main']
        post_entry = models.BlogPost(date = date, title = title, post = post)
        db.session.add(post_entry)
        db.session.commit()
        return redirect(url_for('database'))
    else:
        return render_template('entry.html')
@app.route('/database', methods=['GET', 'POST'])        
def database():
    query = []
    for i in session.query(models.BlogPost):
        query.append((i.title, i.post, i.date))
    return render_template('database.html', query = query)