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python - 如果用户在登录时忘记了密码，则更新密码，Python Flask

问题描述

如果用户在登录时忘记了密码，我正在尝试更新密码。但它不断地给出下面给出的相同错误。

错误请求：浏览器（或代理）发送了此服务器无法理解的请求。

应用程序.py

@app.route('/NewPassword', methods=['POST', 'GET'])
def NewPassword():
    if request.method == 'POST':
        OldEmail = request.form['NewPswdInputEmail']
        OldPhone = request.form['NewPswdInputPhoneNo']
        NewPaswd = request.form['NewPaswdInputPassword']

        cur = mysql.connection.cursor(MySQLdb.cursors.DictCursor)
        cur.execute("UPDATE USERS SET Paswd='" + NewPaswd + "' WHERE Email ='" + OldEmail + "' OR Phone ='" + OldPhone + "'")
        cur.connection.commit()

        return "Password Updated"

    return render_template('NewPassword.html')

新密码.html

<form action="/NewPassword" method="post" oninput='NewPaswdConPassword.setCustomValidity(NewPaswdConPassword.value != NewPaswdInputPassword.value ? "Password does not match." : "")'>
                    <div class="form-group">
                        <label for="customRadio">Select Option to Change Password Between Email & Phone No.</label>
                        <div class="custom-control custom-radio custom-control-inline">
                            <input type="radio" id="customRadioInline1" name="customRadioInline" value="Email" class="custom-control-input" checked>
                            <label class="custom-control-label" for="customRadioInline1">Email Id</label>
                        </div>
                        <div class="custom-control custom-radio custom-control-inline">
                            <input type="radio" id="customRadioInline2" name="customRadioInline" value="Phone" class="custom-control-input">
                            <label class="custom-control-label" for="customRadioInline2">Phone No.</label>
                        </div>
                    </div>

                    <div class="form-group" id="EmailShowHide">
                        <label for="NewPswdInputEmail">Email Address</label>
                        <input type="email" class="form-control" name="loginInputEmail" id="NewPswdInputEmail" aria-describedby="emailHelp" placeholder="Email address">
                        <small id="loginemailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
                    </div>

                    <div class="form-group" id="PhoneShowHide" style="display: none">
                        <label for="NewPswdInputPhoneNo">Phone Number</label>
                        <input type="tel" id="NewPswdInputPhoneNo" name="NewPswdInputPhoneNo" class="form-control" pattern="[0-9]{4}[0-9]{2}[0-9]{4}" placeholder="Phone number">
                        <small id="NewPswdPhoneHelpInline" class="text-muted">Enter Valid Number</small>
                    </div>

                    <div class="form-group">
                        <div class="tool">
                            <label for="NewPaswdInputPassword">New Password</label>
                            <div class="input-group" id="NewPaswdShowHide">
                                <input type="password" class="form-control" name="NewPaswdInputPassword" id="NewPaswdInputPassword" pattern="^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9]).{8,20}$" placeholder="New password" required>
                                <div class="input-group-append">
                                    <a class="btn btn-primary">
                                        <i class="bi bi-eye-slash" aria-hidden="true"></i>
                                    </a>
                                </div>
                            </div>
                            <span class="tooltext">Password Must be Alphanumeric with atleast an UpperCase & LowerCase Characters</span>
                            <small id="NewPaswdHelpInline" class="text-muted">Must be 8-20 characters long.</small>
                        </div>
                    </div>
                    <div class="form-group">
                        <label for="NewPaswdInputConPassword">Confirm New Password</label>
                        <input type="password" class="form-control" name="NewPaswdConPassword" id="NewPaswdInputConPassword" placeholder="Confirm new password" required>
                    </div>
                    <button type="submit" name="Login" id="NewPaswdSubmit" class="btn btn-primary">Submit</button>
                </form>

我想做的是，如果我的数据库“用户”有电子邮件或电话号码。然后 Paswd 将使用用户输入的新密码进行更新

请告诉我我做错了什么。

标签： pythonhtmlmysqlflask

解决方案

我假设您正在使用 Flask。您的应用程序是否在debug模式下运行？在调试模式下运行应用程序有助于确定问题所在。

问题在于电子邮件 HTML 表单输入。当您提交表单时，数据会key=value成对发送，在这种情况下，您使用的是 Flask，因此它是一个 python 字典。因此，在/NewPassword路由中，当您请求时request.form['NewPswdInputEmail']，您将获取从表单提交的字典中的一个值，并将其'NewPswdInputEmail'作为键。在表单输入中，键是name属性。

这就是为什么你得到的原因，KeyError因为name电子邮件输入表单中name="loginInputEmail"的name="NewPswdInputEmail"

您需要做的就是将loginInputEmail电子邮件输入字段中的属性重命名为NewPswdInputEmail.

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