验证码用于判断当前用户与待验证用户是否i配，在注册、密码修改等需要身份验证的场景中有重要作用。
简单的验证方式有手机接受验证码和邮箱接收验证码。
这里主要将实现QQ邮箱验证。
1，开启第三方邮件发送服务
登录QQ邮箱网页版，点击顶部“设置”>>“账号”>>开启POP3/IMAP/SMTP服务>>生成授权码(注意保密）
2，邮箱配置
EMAIL_USE_SSL = True
EMAIL_HOST = ‘’
EMAIL_PORT = 465
EMAIL_HOST_USER = ‘666@’
EMAIL_HOST_PASSWORD = ‘授权码’
DEFAULT_FROM_EMAIL = EMAIL_HOST_USER
3，模板文件
<!DOCTYPE html><html><head>{% load static %}<title>找回密码</title><link rel="stylesheet" href="{% static "css/reset.css" %}" /><link rel="stylesheet" href="{% static "css/user.css" %}" /><script src="{% static "js/jquery.min.js" %}"></script><script src="{% static "js/user.js" %}"></script></head><body><div class="page"><div class="loginwarrp"><div class="logo">找回密码</div><div class="login_form"><form id="Login" name="Login" method="post" action="">{% csrf_token %}<li class="login-item"><span>用户名：</span><input type="text" name="username" class="login_input"><span id="count-msg" class="error"></span></li>{% if password %}<li class="login-item"><span>新密码：</span><input type="password" name="password" class="login_input"><span id="password-msg" class="error"></span></li>{% endif %}{% if VCodeInfo %}<li class="login-item"><span>验证码：</span><input type="text" name="VCode" class="login_input"><span id="password-msg" class="error"></span></li>{% endif %}<div>{{ tips }}</div><li class="login-sub"><input type="submit" name="Submit" value="{{ button }}"></li></form></div></div></div><script type="text/javascript">window.onload = function() {var config = {vx : 4,vy : 4,height : 2,width : 2,count : 100,color : "121, 162, 185",stroke : "100, 200, 180",dist : 6000,e_dist : 20000,max_conn : 10};CanvasParticle(config);}</script><script src="{% static "js/canvas-particle.js" %}"></script></body></html>
4，视图函数
def findpsView(request):button = '获取验证码'# 模板上下文：按钮提示内容VCodeInfo = False # 模板上下文：是否已发送验证码password = False# 模板上下文：是否生成密码输入框if request.method == 'POST':u = request.POST.get('username')p = request.POST.get('password')VCode = request.POST.get('VCode', '') # 模板上下文：产生的验证码user = User.objects.filter(username=u)# 用户不存在if not user:tips = '用户' + u + '不存在'else:# 判断验证码是否已发送if not request.session.get('VCode', ''):# 发送验证码并将验证码写入sessionbutton = '重置密码'tips = '验证码已发送'password = TrueVCodeInfo = TrueVCode = str(random.randint(000000, 999999))request.session['VCode'] = VCodeuser[0].email_user('找回密码', VCode)# 匹配输入的验证码是否正确elif VCode == request.session.get('VCode'):# 密码加密处理并保存到数据库dj_ps = make_password(p, None, 'pbkdf2_sha256')user[0].password = dj_psuser[0].save()del request.session['VCode']tips = '密码已重置'# 输入验证码错误else:tips = '验证码错误，请重新获取'VCodeInfo = Falsepassword = Falsedel request.session['VCode']return render(request, 'user.html', locals())
收到邮件，重填密码就行。
