bootstrap弹出登录框【带合法性检查】
来源：互联网 发布：淘宝推广有效方法 编辑：程序博客网 时间：2024/06/06 03:24
最近做的网站涉及到访问控制，在访问需要登录才能使用的页面或功能时，会弹出登录框：
效果如下：
图 1-点击用户名时，如未登录弹出登录框
对这个功能的详细描述：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title></head><style> h3{width:100%;padding-bottom:10px;border-bottom:2px solid #CCC;} #close{position:absolute;top:2px;right:2px;} #close span{padding:3px 10px;background-color: #999;font-size:20px;color:white;cursor:pointer;} #log{display: none; width: 400px; height: 400px; padding: 30px 40px; background-color: #F3F5F6; position: fixed; top: 70px;; right: 30px;} .error{float:right;color:red;font-size:1.2em;margin-right:10px}</style><link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css"><script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script><script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script><body><button onclick="document.getElementById('log').style.display='block'">弹出登录框</button><div id="log"> <form action="../control/logincheck.php" method="post"> <h3 >请登录</h3> <div class="form-group"> <label for="username">用户名*</label> <span id="user" class="error"> </span> <input type="text" class="form-control" name="username" id="username" placeholder="用户名" onblur='checkName()' required /> </div> <div class="form-group"> <label for="password">密码*</label> <span id="psword" class="error"> </span> <input type="password" class="form-control" name="password" id="password" placeholder="密码" onblur='checkPassword()' required /> </div> <div class="checkbox"> <label> <span><input type="checkbox" value='true' style="width:15px;height:15px;" > 记住我</span> </label> </div> <input type="submit" class="btn btn-primary login-button" value="登录" style="width:70px;height:40px;" /> <p class="text-success" ><a href="register.html">>>还没账号？去注册</a></p> </form> <div id="close" > <span onclick="document.getElementById('log').style.display='none'">关闭</span> </div></div><script> var checkName=function() { document.getElementById("user").innerHTML =""; var name = eval(document.getElementById('username')).value; if (name.length > 20 || name.length < 1) document.getElementById("user").innerHTML = "用户名长度在1-20之间！" ; } var checkPassword = function(){ document.getElementById("psword").innerHTML =""; var name = eval(document.getElementById('password')).value; if (name.length > 12 || name.length < 6) document.getElementById("psword").innerHTML="密码长度在6-12之间！" ; }</script></body></html>
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一种完全用AngularJS实现验证和提示的方法：
<!DOCTYPE html><html><head><meta charset="utf-8"><script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script></head><body><h2>验证实例</h2><form ng-app="myApp" ng-controller="validateCtrl" name="myForm" novalidate><p>用户名:<br><input type="text" name="user" ng-model="user" required><span style="color:red" ng-show="myForm.user.$dirty && myForm.user.$invalid"><span ng-show="myForm.user.$error.required">用户名是必须的。</span></span></p><p>邮箱:<br><input type="email" name="email" ng-model="email" required><span style="color:red" ng-show="myForm.email.$dirty && myForm.email.$invalid"><span ng-show="myForm.email.$error.required">邮箱是必须的。</span><span ng-show="myForm.email.$error.email">非法的邮箱地址。</span></span></p><p><input type="submit"ng-disabled="myForm.user.$dirty && myForm.user.$invalid || myForm.email.$dirty && myForm.email.$invalid"></p></form><script>var app = angular.module('myApp', []);app.controller('validateCtrl', function($scope) { $scope.user = '输入用户名'; $scope.email = '输入密码';});</script></body></html>
