ajax提交wtform出现405错误

Question

背景：
使用flask开发的一个web系统，后台用户管理采用的是点击目录后采用load方式不刷新动态加载
1、如图，点击“兖矿集团”，动态加载出右侧的页面

主页面html名称：usermanage.html,代码如下：

{% extends 'base.html' %}

{% block headload %}
<!-- Bootstrap-table css -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/bootstrap-table.css') }}">
{% endblock headload %}

{% block sidebarfunction2 %}
{% endblock sidebarfunction2 %}

{% block sidebarfunction6 %}
{% endblock sidebarfunction6 %}

{% block sidebarfunction7 %}
{% endblock sidebarfunction7 %}

{% block sidebarfunction3 %}
{% endblock sidebarfunction3 %}

{% block sidebarfunction4 %}
<li class="active treeview">
    <a href="#">
        <i class="fa fa-gear"></i> <span>系统管理</span>
        <span class="pull-right-container">
            <i class="fa fa-angle-left pull-right"></i>
        </span>
    </a>
    <ul class="treeview-menu">
        <li class="active"><a href="{{ url_for('usermanage') }}"><i class="fa fa-user"></i> 用户管理</a></li>
        <li><a href="{{ url_for('initialize') }}"><i class="fa fa-hourglass-2"></i> 系统初始化</a></li>

    </ul>
</li>
{% endblock sidebarfunction4 %}

{% block contentheader1 %}
<h1>用户管理</h1>
{% endblock contentheader1 %}

{% block contentheader2 %}
<li> 系统管理</li>
<li class="active">用户管理</li>
{% endblock contentheader2 %}

{% block content %}
<section class="content">
    <!-- 添加custom tab -->
    <div class="row">
            <div class="col-md-12">
                <div class="nav-tabs-custom with-border">
                    <ul class="nav nav-tabs">
                        <li class="active"><a href="#user" data-toggle="tab">普通用户</a></li>
                        <li><a href="#admin" data-toggle="tab">管理员</a></li>
                    </ul>
                    <div class="tab-content">
                        <!--普通用户-->
                        <div class="tab-pane active" id="user">
                            <div class="row">
                                <div class="col-xs-3"> <!-- 设备树区域 -->
                                    <div class="box box-primary">
                                        <div class="box-header">
                                            <h3 class="box-title">组织结构</h3>
                                        </div>
                                        <div class="box-body">
                                            <div id="treeview-user" class=""></div>
                                        </div>
                                    </div>
                                </div>
                                <div class="col-xs-9"> <!-- 数据区域 -->
                                    <div id="generaluser">
                                        <div class="box box-primary">
                                            <div class="box-header">
                                                <h3 class="box-title">普通用户添加</h3>
                                            </div>
                                            <!-- /.box-header -->
                                            <div class="box-body" id="datashow-adduser">
                                                <div class="alert alert-info alert-dismissible">
                                                    <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;
                                                    </button>
                                                    <h4><i class="icon fa fa-info"></i> 提示信息!</h4>
                                                    请点击左侧组织结构节点进行操作！
                                                </div>
                                            </div>
                                            <!-- /.box-body -->
                                        </div>
                                        <div class="box box-primary">
                                            <div class="box-header">
                                                <h3 class="box-title">普通用户删除</h3>
                                            </div>
                                            <!-- /.box-header -->
                                            <div class="box-body" id="datashow-deluser">
                                                <div class="alert alert-info alert-dismissible">
                                                    <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;
                                                    </button>
                                                    <h4><i class="icon fa fa-info"></i> 提示信息!</h4>
                                                    请点击左侧组织结构节点进行操作！
                                                </div>
                                            </div>
                                            <!-- /.box-body -->
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                        <!--管理员-->
                        <div class="tab-pane" id="admin">
                            <div class="row">
                                <div class="col-xs-3"> <!-- 设备树区域 -->
                                    <div class="box box-primary">
                                        <div class="box-header">
                                            <h3 class="box-title">组织结构</h3>
                                        </div>
                                        <div class="box-body">
                                            <div id="treeview-admin" class=""></div>
                                        </div>
                                    </div>
                                </div>
                                <div class="col-xs-9"> <!-- 数据区域 -->
                                    <div class="box box-primary">
                                        <div class="box-header">
                                            <h3 class="box-title">管理员添加</h3>
                                        </div>
                                        <!-- /.box-header -->
                                        <div class="box-body" id="datashow-addadmin">
                                            <div class="alert alert-info alert-dismissible">
                                                <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;
                                                </button>
                                                <h4><i class="icon fa fa-info"></i> 提示信息!</h4>
                                                请在左侧设备树选择最终测点！
                                            </div>
                                        </div>
                                        <!-- /.box-body -->
                                    </div>
                                    <div class="box box-primary">
                                        <div class="box-header">
                                            <h3 class="box-title">管理员删除</h3>
                                        </div>
                                        <!-- /.box-header -->
                                        <div class="box-body" id="datashow-deladmin">
                                            <div class="alert alert-info alert-dismissible">
                                                <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;
                                                </button>
                                                <h4><i class="icon fa fa-info"></i> 提示信息!</h4>
                                                请在左侧设备树选择最终测点！
                                            </div>
                                        </div>
                                        <!-- /.box-body -->
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

</section>
{% endblock content %}

{% block script %}
{{ super() }}
<!-- Bootstrap Tree View js -->
<script src="{{ url_for('static', filename='admin/bootstrap-treeview.js') }}"></script>
<script src="{{ url_for('static', filename='admin/bootstrap-table.js') }}"></script>
<script type="text/javascript">
    $(function () {
        var tempdata = {{ groups | tojson }};
        var groups = JSON.parse(tempdata);


        $('#treeview-user').treeview({
            levels: 1,
            color: "#428bca",
            showTags: true,
            enableLinks: true,
            selectable: true,
            data: groups,
            onNodeSelected: function (event, node) {
                // $('div#datashow-adduser').load(url = "{{ url_for('index') }}" + 'system/usermanage_ajax/' + node.id + '/' + node.gid + '/' + node.cid + '/' + node.ccid + '/' + node.mid + '/' + node.ssid + ' #adduser'); //注意#号前的空格
                // $('div#datashow-deluser').load(url = "{{ url_for('index') }}" + 'system/usermanage_ajax/' + node.id + '/' + node.gid + '/' + node.cid + '/' + node.ccid + '/' + node.mid + '/' + node.ssid + ' #deluser');
                $('div#generaluser').load(url = "{{ url_for('index') }}" + 'system/usermanage_ajax/' + node.id + '/' + node.gid + '/' + node.cid + '/' + node.ccid + '/' + node.mid + '/' + node.ssid);

            }
        });

    });
    function changepass() {
                            window.open("{{ url_for('index') }}" + 'system/usermanage/changepass');
                            // window.open("http://133dg.com");
    }

</script>
{% endblock script %}

对应的视图函数：

@app.route('/system/usermanage/')
@login_required
def usermanage():
    current_time = datetime.utcnow()
    groups = general.Groups()
    return render_template('system/usermanage.html', groups=json.dumps(groups), current_time=current_time)

加载的右侧页面名称：usermanage_ajax.html，代码如下：

<!DOCTYPE html>


<!-- Bootstrap-table css -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/bootstrap-table.css') }}">

<link rel="stylesheet" href="{{ url_for('static', filename='admin/bower_components/bootstrap/dist/css/bootstrap.min.css') }}">
<!-- Font Awesome -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/bower_components/font-awesome/css/font-awesome.min.css') }}">
<!-- Ionicons -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/bower_components/Ionicons/css/ionicons.min.css') }}">
<!-- jvectormap -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/bower_components/jvectormap/jquery-jvectormap.css') }}">
<!-- Theme style -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/dist/css/AdminLTE.min.css') }}">
<!-- AdminLTE Skins. Choose a skin from the css/skins
     folder instead of downloading all of them to reduce the load. -->
<link rel="stylesheet" href="{{ url_for('static', filename='admin/dist/css/skins/_all-skins.min.css') }}">

<div class="box box-primary">
    <div class="box-header">
        <h3 class="box-title">普通用户添加</h3>
    </div>
    <div class="box-body" id="adduser">
    <h4>当前添加用户权限范围：<span class="text-primary text-bold"> {{ info.name }} &nbsp;</span></h4>
    <br />
        {% for message in get_flashed_messages() %}
        <div class="alert alert-warning">
            <button type="button" class="close" data-dismiss="alert">&times;</button>
            {{ message }}
        </div>
        {% endfor %}
    <form class="form" method="post" id="adduserform">
        {{ form.csrf_token() }}
        <div class="row">
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-user fa-fw fa-lg"></i></span>
                    {{ form.username(class="form-control", placeholder="用户名") }}
                    <!--<input type="text" class="form-control" placeholder="用户名" name="username">-->
                </div>
                <span style="color: red;" id="username"></span>
            </div>
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-lock fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="密码" name="password">-->
                    {{ form.password(class="form-control", placeholder="密码") }}
                </div>
                <span style="color: red;" id="password"></span>
            </div>
        </div>
        <br />
        <div class="row">
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-vcard fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="姓名" name="name">-->
                    {{ form.name(class="form-control", placeholder="姓名") }}
                </div>
                <span style="color: red;" id="name"></span>
            </div>
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-male fa-fw fa-lg"></i></span>
                    <!--<select class="form-control" name="sex">-->
                        <!--<option>男</option>-->
                        <!--<option>女</option>-->
                    <!--</select>-->
                    {{ form.sex(class="form-control") }}
                    <span class="input-group-addon"><i class="fa fa-female fa-fw fa-lg"></i></span>
                </div>
                <span style="color: red;" id="sex"></span>
            </div>
        </div>
        <br />
        <div class="row">
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-mobile fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="手机" name="mobile">-->
                    {{ form.mobile(class="form-control", placeholder="手机") }}
                </div>
                <span style="color: red;" id="mobile"></span>
            </div>
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-envelope fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="邮箱" name="email">-->
                    {{ form.email(class="form-control", placeholder="邮箱") }}<label>{{ form.email.errors[0] }}</label>
                </div>
                <span style="color: red;" id="email"></span>
            </div>
        </div>
        <br />
        <div class="row">
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-users fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="头衔" name="title">-->
                    {{ form.title(class="form-control", placeholder="职衔") }}
                </div>
                <span style="color: red;" id="title"></span>
            </div>
            <div class="col-lg-6">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-phone fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="座机" name="telephone">-->
                    {{ form.telephone(class="form-control", placeholder="座机") }}
                </div>
                <span style="color: red;" id="telephone"></span>
            </div>
        </div>
        <br />
        <div class="row">
            <div class="col-lg-12">
                <div class="input-group has-feedback">
                    <span class="input-group-addon"><i class="fa fa-address-book fa-fw fa-lg"></i></span>
                    <!--<input type="text" class="form-control" placeholder="地址" name="address">-->
                    {{ form.address(class="form-control", placeholder="地址") }}
                </div>
                <span style="color: red;" id="address"></span>
            </div>
        </div>
        <br />
        <div class="row">
            <div class="col-xs-12">
                <!--<button type="submit" class="btn btn-primary btn-block" id="btn" onclick="test()"><i class="fa fa-user-plus fa-fw fa-lg" ></i>&nbsp;&nbsp;添加用户</button>-->
                {{ form.submit(class="btn btn-primary btn-block", id="btn") }}
            </div>
        </div>
    </form>
</div>
</div>

<div class="box box-primary">
    <div class="box-header">
        <h3 class="box-title">普通用户管理</h3>
    </div>
    <div class="box-body" id="deluser">
    <h4>权限范围为{{ info.name }}的已有用户列表：</h4>
    <br />
    <table id="table" data-toggle="table" class="table table-hover table-bordered">
        <thead>
            <tr>
                <th class="text-center">序号</th>
                <th class="text-center">用户名</th>
                <th class="text-center">姓名</th>
                <th class="text-center">职衔</th>
                <th class="text-center">性别</th>
                <th class="text-center">手机号</th>
                <th class="text-center">邮箱</th>
                <th class="text-center">座机</th>
                <th class="text-center">地址</th>
                <th class="text-center">操作</th>
            </tr>
        </thead>
        <tbody>
            {% for i in user_list %}
            <tr>
                <td class="text-center">{{ loop.index }}</td>
                <td class="text-center">{{ i.username }}</td>
                <td class="text-center">{{ i.name }}</td>
                <td class="text-center">{{ i.title }}</td>
                <td class="text-center">{{ i.sex }}</td>
                <td class="text-center">{{ i.mobile }}</td>
                <td class="text-center">{{ i.email }}</td>
                <td class="text-center">{{ i.telephone }}</td>
                <td class="text-center">{{ i.address }}</td>
                <td class="text-center">
                    <button type="button" class="btn btn-warning btn-sm" data-toggle="modal" data-target="#modal1" data-username="{{ i.username }}" style="margin-right:15px;"><i class="fa fa-refresh" ></i>&nbsp;重置密码</button>
                    <button type="button" class="btn btn-danger btn-sm" data-toggle="modal" data-target="#modal2" data-username="{{ i.username }}" ><i class="fa fa-trash" ></i>&nbsp;删除用户</button>
                </td>
            </tr>
            {% endfor %}
        </tbody>
    </table>
    <!--重置密码模态框-->
    <div class="modal modal-warning fade" id="modal1">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                        <span aria-hidden="true">&times;</span></button>
                    <h4 class="modal-title">重置密码</h4>
                </div>
                <div class="modal-body">
                    <p>确认重置用户：<span id="username1" class="label-primary"></span> 的密码？</p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-outline pull-left" data-dismiss="modal">取消</button>
                    <button type="button" id="confirm1" onclick="" class="btn btn-outline">确认重置密码</button>
                </div>
            </div>
            <!-- /.modal-content -->
        </div>
        <!-- /.modal-dialog -->
    </div>
    <!--删除用户模态框-->
    <div class="modal modal-danger fade" id="modal2">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">&times;</span></button>
                <h4 class="modal-title">删除用户</h4>
            </div>
            <div class="modal-body">
                <p>确认删除用户：<span id="username2" class="label-primary"></span> ？</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-outline pull-left" data-dismiss="modal">取消</button>
                <button type="button" id="confirm2" onclick="" class="btn btn-outline">确认删除用户</button>
            </div>
        </div>
        <!-- /.modal-content -->
    </div>
    <!-- /.modal-dialog -->
</div>
</div>
</div>



<script type="text/javascript">

        $('#modal1').on('show.bs.modal', function (e) {

        //get data-id attribute of the clicked element
        var username = $(e.relatedTarget).data('username');
        // alert(username);
        //populate the textbox
        $(e.currentTarget).find('span#username1').text(username);
        $(e.currentTarget).find('button#confirm1').attr("onclick", "location.href='{{ url_for('index') }}' + 'system/usermanage/resetpass/" + username + "'" + ";return false;")
    });

        $('#modal2').on('show.bs.modal', function (e) {

        //get data-id attribute of the clicked element
        var username = $(e.relatedTarget).data('username');
        // alert(username);
        //populate the textbox
        $(e.currentTarget).find('span#username2').text(username);
        $(e.currentTarget).find('button#confirm2').attr("onclick", "location.href='{{ url_for('index') }}' + 'system/usermanage/deluser/" + username + "'" + ";return false;")
    });

        $(function () {
            $('#btn').click(function () {
                //ajax提交
                post_data = $('#adduserform').serialize();
                function show (data, tag) {
                    if (data.errors.hasOwnProperty(tag)) {
                        $('span#'+tag).text(data.errors[tag])
                        // alert(data.errors['username'])
                        }
                    else {
                        $('span#'+tag).text('')
                    }
                }
                $.ajax({
                    url: "{{ url_for('adduser', gid=info.gid, cid=info.cid, ccid=info.ccid, mid=info.mid, ssid=info.ssid) }}",
                    type: 'POST',
                    data: post_data,
                    success: function (data) {
                        show(data, 'username');
                        show(data, 'password');
                        show(data, 'name');
                        show(data, 'sex');
                        show(data,'mobile');
                        show(data,'email');
                        show(data,'title');
                        show(data,'telephone');
                        show(data,'address');
                    }
                });
            });
        });

        function test() {
                //ajax提交
                post_data = $('#adduserform').serialize();
                function show (data, tag) {
                    if (data.errors.hasOwnProperty(tag)) {
                        $('span#'+tag).text(data.errors[tag])
                        // alert(data.errors['username'])
                        }
                    else {
                        $('span#'+tag).text('')
                    }
                }
                $.ajax({
                    url: "{{ url_for('adduser', gid=info.gid, cid=info.cid, ccid=info.ccid, mid=info.mid, ssid=info.ssid) }}",
                    type: 'POST',
                    data: post_data,
                    success: function (data) {
                        show(data, 'username');
                        show(data, 'password');
                        show(data, 'name');
                        show(data, 'sex');
                        show(data,'mobile');
                        show(data,'email');
                        show(data,'title');
                        show(data,'telephone');
                        show(data,'address');
                    }
                });
        }
</script>

对应的视图函数：

@app.route('/system/usermanage_ajax/<id>/<gid>/<cid>/<ccid>/<mid>/<ssid>')
@login_required
def usermanage_ajax(id, gid, cid, ccid, mid, ssid):
    current_time = datetime.utcnow()
    info = {}
    user_list = []
    adduserform = general.AddUserForm()
    sql1 = '''select u.gid,u.cid,u.ccid,u.mid,u.ssid,u.username
              from users u
              where (u.gid={0} or {0} is null)
              and (u.cid={1} or {1} is null)
              and (u.ccid={2} or {2} is null)
              and (u.mid={3} or {3} is null)
              and (u.ssid={4} or {4} is null)'''.format(gid, cid, ccid, mid, ssid)
    users = general.SQL(sql1)
    sql2 = '''select i.groupname,i.companyname1,i.companyname2,i.minename,'该套设备' 
              from identifier i
              where (i.gid={0} or {0} is null)
              and (i.cid={1} or {1} is null)
              and (i.ccid={2} or {2} is null)
              and (i.mid={3} or {3} is null)
              and (i.ssid={4} or {4} is null)'''.format(gid, cid, ccid, mid, ssid)
    temp = general.SQL(sql2)[0]
    info['gid'] = gid
    info['cid'] = cid
    info['ccid'] = ccid
    info['mid'] = mid
    info['ssid'] = ssid
    if int(id) < 10000:
        for user in users:
            if not user['cid']:
                user_list.append(user)
        info['name'] = temp['groupname']
    elif 10000 < int(id) < 20000:
        for user in users:
            if not user['ccid'] and not user['mid']:
                user_list.append(user)
        info['name'] = temp['groupname'] + '>>' + temp['companyname1']
    elif 20000 < int(id) < 30000:
        for user in users:
            if not user['mid']:
                user_list.append(user)
        info['name'] = temp['groupname'] + '>>' + temp['companyname1'] + '>>' + temp['companyname2']
    elif 30000 < int(id) < 40000:
        for user in users:
            if not user['ssid']:
                user_list.append(user)
        if not temp['companyname2']:
            info['name'] = temp['groupname'] + '>>' + temp['companyname1'] + '>>'  + temp['minename']
        else:
            info['name'] = temp['groupname'] + '>>' + temp['companyname1'] + '>>' + temp['companyname2'] + '>>' + temp['minename']
    elif len(id) == 7:
        if not temp['companyname2']:
            info['name'] = temp['groupname'] + '>>' + temp['companyname1'] + '>>'  + temp['minename'] + '>>' + '该套设备'
        else:
            info['name'] = temp['groupname'] + '>>' + temp['companyname1'] + '>>' + temp['companyname2'] + '>>' + temp['minename'] + '>>' + '该套设备'

    return render_template('system/usermanage_ajax.html', current_time=current_time, info=info, user_list=user_list, form=adduserform)

2、问题
为了实现添加用户表单（adduserform）的表单验证，我使用了wtform，效果如图

这个表单的代码：

class AddUserForm(FlaskForm):
    username = StringField('用户名', validators=[DataRequired(message='用户名不能为空')])
    password = StringField('密码', validators=[DataRequired('用户密码不能为空！'), Length(min=4, message='密码位数要大于4位')])
    name = StringField('姓名', validators=[DataRequired('用户姓名不能为空！')])
    sex = SelectField(choices=[(1, '男'), (2, '女')], coerce=int)
    mobile = StringField('手机', validators=[DataRequired('用户手机不能为空！')])
    def validate_mobile(form, field):
        if not field.data.isnumeric():
            raise StopValidation('手机号只能输入数字')
        elif len(str(field.data)) != 11:
            raise StopValidation('手机号位数不正确')
    email = StringField('邮箱', validators=[DataRequired('用户邮箱不能为空！'), Email('邮箱格式错误！')])
    title = StringField('职衔', validators=[DataRequired('用户职衔不能为空！')])
    telephone = StringField('座机', validators=[DataRequired('用户座机不能为空！')])
    address = StringField('地址', validators=[DataRequired('用户地址不能为空！')])
    submit = SubmitField('登录')

adduser视图函数：

@app.route('/system/usermanage/adduser/<gid>/<cid>/<ccid>/<mid>/<ssid>', methods=['POST'])
@login_required
def adduser(gid, cid, ccid, mid, ssid):
    adduserform = general.AddUserForm(request.form)
    info = {}
    info['gid'] = gid
    info['cid'] = cid
    info['ccid'] = ccid
    info['mid'] = mid
    info['ssid'] = ssid
    print(adduserform.validate())
    if request.method == 'POST':
        if adduserform.validate_on_submit():
            formdatas = request.form
            print('formdatas',formdatas)
            password = generate_password_hash(formdatas['password'])
            username = formdatas['username'].strip()
            if general.SQL('''select username from users where username='{0}' '''.format(username)):
                info['type'] = 'warning'
                info['title'] = '错误'
                info['notice'] = '用户名：' + username + ' 已存在！'
                print('用户名：' + username + ' 已存在！')
                return render_template('notice.html', info=info)
                # flash('用户名：' + username + ' 已存在！')
                # errors['flash'] = '用户名：' + username + ' 已存在！'
            else:
                sql = '''insert into users (gid,cid,ccid,mid,ssid,username,password,type,name,sex,email,mobile,telephone,title,address)
                         values ({0},{1},{2},{3},{4},'{5}','{6}',{7},'{8}','{9}','{10}','{11}','{12}','{13}','{14}')'''.format(
                         gid,cid,ccid,mid,ssid,username,password,3,formdatas['name'],formdatas['sex'],formdatas['email'],
                         formdatas['mobile'],formdatas['title'],formdatas['telephone'],formdatas['address'])
                print(sql)
                try:
                    general.SQL(sql)
                    info['type'] = 'success'
                    info['title'] = '添加用户成功'
                    info['notice'] = '用户' + username + ' 已添加！'
                    print('返回失败？')
                    return render_template('notice.html', info=info)
                except Exception as error:
                    print(request.path, error)
                    info['type'] = 'warning'
                    info['title'] = '错误'
                    info['notice'] = '出现错误，请联系管理员！'
                    return render_template('notice.html', info=info)
        else:
            errors = adduserform.get_errors()
            print(errors)
            return jsonify({'status':400, 'errors': errors})
    else:
        pass

为了能在当前页面显示验证的错误信息，在usermanage_ajax.html页面，我使用了ajax，采用post方式提交到adduser视图处理，那么问题来了，本来程序执行到这个地方：

try:
                    general.SQL(sql)
                    info['type'] = 'success'
                    info['title'] = '添加用户成功'
                    info['notice'] = '用户' + username + ' 已添加！'
                    print('返回失败？')
                    return render_template('notice.html', info=info) #执行到这个地方返回了视图
                except Exception as error:
                    print(request.path, error)
                    info['type'] = 'warning'
                    info['title'] = '错误'
                    info['notice'] = '出现错误，请联系管理员！'
                    return render_template('notice.html', info=info)

应该返回结果的，类似下图的效果

但是，实际上却出现如下的错误：

我大概了解是因为从system/usermanage发起的请求，referer指向的是system/usermanage，所以返回到此，但是因为system/usermanage的视图函数我并没有设置POST方法，所以报了这个错误，我想问的是该怎么处理这个？ 以使他能达到我需要的效果（显示notice.html视图，也就是哪个类似的效果）

3、我试过的方法
如果在usermanage_ajax.html中不采用ajax方式post，而是将url写到form的action里，程序执行到这个地方是不会报错的，但是不采用ajax貌似不能在当前页显示验证的错误消息啊

try:
                    general.SQL(sql)
                    info['type'] = 'success'
                    info['title'] = '添加用户成功'
                    info['notice'] = '用户' + username + ' 已添加！'
                    print('返回失败？')
                    return render_template('notice.html', info=info) #执行到这个地方返回了视图
                except Exception as error:
                    print(request.path, error)
                    info['type'] = 'warning'
                    info['title'] = '错误'
                    info['notice'] = '出现错误，请联系管理员！'
                    return render_template('notice.html', info=info)

4、拜托各位大神帮帮忙，这个问题卡了我3天了，非常感谢。半路出家的程序猿，水平比较渣
总结一下，不要让他出现405错误，能正常返回我的notice视图
5、P.S. 还有一个问题，就是wtforms的验证即使出现了错误，为什么还是能通过提交，难道不是应该停下来等待修正输入吗？
如果是空的，页面不会提交，但是比如邮箱，虽然填了，但是格式不正确，或者手机，位数不正确（我后台已经抓取到了错误），但是页面为什么还是会提交呢？（然后就会显示那个405错误）

Answer 1

是我的问题描述的不够详细吗？ 怎么没有过路大侠给解答下？

Answer 2

这是你原来的代码：

@app.route('/system/usermanage/')
@login_required
def usermanage():
    current_time = datetime.utcnow()
    groups = general.Groups()
    return render_template('system/usermanage.html', groups=json.dumps(groups), current_time=current_time)

建议改成这样的试试

@app.route('/system/usermanage/', methods=['GET','POST'])
...
...
...

或者你可以看看我的这篇文章，是基于 websocket —— 基于 flask-socketio 的 CRUD 操作初探