Bootstrap弹出带合法性检查的登录框实例代码【推荐】
最近做了一个项目其中有项目需求涉及到访问控制,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:
不涉及到登录时,登录框隐藏
涉及到登录时,登录框弹出到页面左上角
登陆成功后登录框隐藏
实现思路:
在body结束标签之前插入登录的div,设其定位方式为absolute,位置在左上角。
登录框默认的display属性为none。触发登录时,将该属性改为block
附上示例代码:
<!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="https://cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script> <script src="https://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>
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>
以上所述是小编给大家介绍的Bootstrap弹出带合法性检查的登录框实例代码【推荐】,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对我们网站的支持!
赞 (0)