验证更改密码的表单 ``` class ResetpwdForm(BaseForm): oldpwd = StringField(validators=[Length(6,20,message="请输入正确格式的密码")]) newpwd = StringField(validators=[Length(6,20,message="请输入正确格式的密码")]) newpwd2 = StringField(validators=[EqualTo("newpwd")]) ``` 判断更改密码的信息 ``` def post(self): form = ResetpwdForm(request.form) if form.validate(): # 获取密码信息 oldpwd = form.oldpwd.data newpwd = form.newpwd.data # 获取全局对象g的用户属性 user = g.cms_user # 判断原密码是否一致 if user.check_password(oldpwd): # 修改密码 user.password = newpwd # 提交到数据库中 db.session.commit() # 返回数据 return jsonify({"code":200,"message":""}) else: return jsonify({"code":400,"message":"旧密码错误"}) else: message = form.get_error() return jsonify({'code':400,"message":message}) ```