自动验证输入信息
如果输入有误,会提示相应的信息
以下是代码
# _*_ encoding:utf-8 _*_ from django import forms class LoginForm(forms.Form): username = forms.CharField(required=True) # required=True 表示必填字段 password = forms.CharField(required=True, min_length=5)
# _*_ encoding:utf-8 _*_ from django.shortcuts import render from django.contrib.auth import authenticate, login from django.contrib.auth.backends import ModelBackend # from django.db.models import Q # 完成并集 from django.views.generic.base import View # # Create your views here. from .models import UserProfile from .forms import LoginForm class CustomBackend(ModelBackend): def authenticate(self, username=None, password=None, **kwargs): # 完成自己的逻辑 try: # user = UserProfile.objects.get(username=username) user = UserProfile.objects.get(Q(username=username)|Q(email=username)) if user.check_password(password): return user except Exception as e: return None # 基于类 class LoginView(View): # 继承View django的View会自动调用get ,post def get(self, request): return render(request, "login.html", {}) def post(self, request): login_form = LoginForm(request.POST) # 实例化 if login_form.is_valid(): user_name = request.POST.get("username", "") pass_word = request.POST.get("password", "") user = authenticate(username=user_name, password=pass_word) if user is not None: login(request, user) # 这个是系统提供的 login return render(request, "index.html") # 登录成功,跳转到首页 else: return render(request, "login.html", {"msg": "用户名或密码错误"}) # 验证失败 else: return render(request, "login.html", {"login_form":login_form}) # 登录失败,跳转到登录页面
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="renderer" content="webkit"> <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" > <title>慕学在线网登录</title> <link rel="stylesheet" type="text/css" href="/static/css/reset.css"> <link rel="stylesheet" type="text/css" href="/static/css/login.css"> </head> <body> <div class="dialog" id="jsDialog"> <!--提示弹出框--> <div class="successbox dialogbox" id="jsSuccessTips"> <h1>成功提交</h1> <div class="close jsCloseDialog"><img src="/static/images/dig_close.png"/></div> <div class="cont"> <h2>您的需求提交成功!</h2> <p></p> </div> </div> <div class="noactivebox dialogbox" id="jsUnactiveForm" > <h1>邮件验证提示</h1> <div class="close jsCloseDialog"><img src="/static/images/dig_close.png"/></div> <div class="center"> <img src="/static/images/send.png"/> <p>我们已经向您的邮箱<span class="green" id="jsEmailToActive">[email protected]</span>发送了邮件,<br/>为保证您的账号安全,请及时验证邮箱</p> <p class="a"><a class="btn" id="jsGoToEmail" target="_blank" href="http://mail.qq.com">去邮箱验证</a></p> <p class="zy_success upmove"></p> <p style="display: none;" class="sendE2">没收到,您可以查看您的垃圾邮件和被过滤邮件,也可以再次发送验证邮件(<span class="c5c">60s</span>)</p> <p class="sendE">没收到,您可以查看您的垃圾邮件和被过滤邮件,<br/>也可以<span class="c5c green" id="jsSenEmailAgin" style="cursor: pointer;">再次发送验证邮件</span></p> </div> </div> </div> <div class="bg" id="dialogBg"></div> <header> <div class="c-box fff-box"> <div class="wp header-box"> <p class="fl hd-tips">慕学在线网,在线学习平台!</p> <ul class="fr hd-bar"> <li>服务电话:<span>33333333</span></li> <li class="active"><a href="login.html">[登录]</a></li> <li><a href="register.html">[注册]</a></li> </ul> </div> </div> </header> <section> <div class="c-box bg-box"> <div class="login-box clearfix"> <div class="hd-login clearfix"> <a class="index-logo" href="index.html"></a> <h1>用户登录</h1> <a class="index-font" href="index.html">回到首页</a> </div> <div class="fl slide"> <div class="imgslide"> <ul class="imgs"> <li><a href=""><img width="483" height="472" src="/static/images/mysql.jpg" /></a></li> <li><a href=""><img width="483" height="472" src="/static/images/mysql.jpg" /></a></li> <li><a href=""><img width="483" height="472" src="/static/images/mysql.jpg" /></a></li> </ul> </div> <div class="unslider-arrow prev"></div> <div class="unslider-arrow next"></div> </div> <div class="fl form-box"> <h2>帐号登录</h2> <form action="/login/" method="post" autocomplete="off"> <input type='hidden' name='csrfmiddlewaretoken' value='mymQDzHWl2REXIfPMg2mJaLqDfaS1sD5' /> <div class="form-group marb20 {% if login_form.errors.username %}errorput{% endif %}"> <label>用 户 名</label> <input name="username" id="account_l" type="text" placeholder="手机号/邮箱" /> </div> <div class="form-group marb8 {% if login_form.errors.password %}errorput{% endif %}"> <label>密 码</label> <input name="password" id="password_l" type="password" placeholder="请输入您的密码" /> </div> <div class="error btns login-form-tips" id="jsLoginTips">{% for key,error in login_form.errors.items %}{{ error }}{% endfor %}</div> <div class="auto-box marb38"> <a class="fr" href="forgetpwd.html">忘记密码?</a> </div> <input class="btn btn-green" id="jsLoginBtn" type="submit" value="立即登录 > " /> {% csrf_token %} </form> <p class="form-p">没有慕学在线网帐号?<a href="register.html">[立即注册]</a></p> </div> </div> </div> </section> <script src="../js/jquery.min.js" type="text/javascript"></script> <script src="../js/unslider.js" type="text/javascript"></script> <script src="../js/login.js" type="text/javascript"></script> </body> </html>