通用登陸界面1.1

時間 2019-12-14
標籤通用登陸界面 1.1 简体版
原文原文鏈接
通用登陸界面1.1javascript
單獨頁面，不依賴任何js和css庫，直接拿來能夠用css
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
    <title>通用登陸界面1.1</title>
    <meta charset='UTF-8'>
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
    <meta name="viewport" content="initial-scale=1, maximum-scale=3, minimum-scale=1, user-scalable=no">
    <meta name="description" content="通用登陸界面1.1"/>
    <meta name="keywords" content="登陸"/>
    <meta name="author" content="lixingwu,lixingwu@aliyun.com"/>
    <style>
        body{background-color:#F2F2F2}
        .login-main{position:relative;left:0;top:0;padding:110px 0;min-height:100%;box-sizing:border-box}
        .login-box{width:375px;margin:0 auto;box-sizing:border-box;border:solid 2px #e2e2e2;background-color:#fff;position:relative}
        .login-box .title{padding:20px;text-align:center}
        .login-box .title h2{line-height:24px;padding:0;margin-bottom:10px;font-weight:bold;font-size:30px;color:#000}
        .login-box .title p{margin:20px auto 0;font-weight:300;color:#999}
        .login-box .login-form{padding:20px}
        .login-form .form-item{position:relative;margin-bottom:15px;clear:both}
        .login-form .form-item .form-label{position:absolute;left:1px;top:1px;width:38px;line-height:34px;text-align:center;color:#d2d2d2;font-size:16px;font-weight:bold}
        .login-form .form-item .form-input{box-sizing:border-box;outline:0;padding:0 10px 0 38px;display:block;width:100%;height:38px;line-height:1.3;border:1px solid #e6e6e6;background-color:#fff;border-radius:2px;transition:all .3s;color:#2F4056}
        input::-webkit-input-placeholder{color:#c2c2c2}
        .login-form .form-item .col-xs7{width:70.33333333%;float:left}
        .login-form .form-item .col-xs5{width:29.66666667%;float:left}
        .login-form .form-item .form-checkbox{padding-right:15px;line-height:18px;background:0 0;color:#666;display:inline-block;margin-top:7px}
        .form-item .form-checkbox label{display:inline-block;font-size:12px}
        .login-form .form-item .jump-change{margin-top:7px;float:right;color:#029789;text-decoration:none;cursor:pointer;line-height:24px;font-size:12px}
        .login-form .form-item .btn-fluid{display:inline-block;height:38px;line-height:38px;padding:0 18px;background-color:#009688;color:#fff;white-space:nowrap;text-align:center;font-size:14px;border:none;border-radius:2px;cursor:pointer;outline:0;-webkit-appearance:none;transition:all .3s;-webkit-transition:all .3s;box-sizing:border-box;width:100%}
        .btn-fluid:hover{opacity:.8;filter:alpha(opacity=80);color:#fff}
        .login-box .login-tip{position:absolute;top:-90px;width:370px;color:#999;padding:10px 0;line-height:30px;text-align:center;border:solid 2px #FFB800;border-radius:10px;background-color:#fff}
        .hide{display:none !important;visibility:hidden !important}
    </style>
</head>
<body>
<div class="login-main">
    <div class="login-box">
        <div class="title">
            <h2>後臺登陸</h2>
            <p>通用登陸界面1.1</p>
        </div>
        <div class="login-form">
            <form id="loginForm">
                <!--input的name本身根據後臺接收的參數進行調整，js沒有用到name進行處理-->
                <div class="form-item">
                    <label for="username" class="form-label">&#9819</label>
                    <input type="text" name="loginName" id="username" class="form-input" placeholder="用戶名"/>
                </div>
                <div class="form-item">
                    <label for="password" class="form-label">&#10052</label>
                    <input type="password" name="loginPass" id="password" class="form-input" placeholder="密碼">
                </div>
                <div class="form-item">
                    <div class="col-xs7">
                        <label for="vercode" class="form-label">&#9851</label>
                        <input type="text" name="checkCode" id="vercode" class="form-input" placeholder="驗證碼">
                    </div>
                    <div class="col-xs5">
                        <div style="margin-left: 10px;margin-top: 5px;">
                            <img src="/vcode?codeKey=admin" class="login-codeimg" id="login-vercode"
                                 title="點擊圖片刷新">
                        </div>
                    </div>
                </div>
                <div class="form-item">
                    <div class="form-checkbox">
                        <input type="checkbox" id="remember" title="記住密碼">
                        <label for="remember">記住密碼</label>
                    </div>
                    <a href="javascript:alert('本身想辦法吧')" class="jump-change">忘記密碼？</a>
                </div>
                <div class="form-item">
                    <button class="btn-fluid" id="login-submit">立刻搞事</button>
                </div>
            </form>
        </div>
        <p class="login-tip hide"></p>
    </div>
</div>
</body>
<script>
    window.onload = function () {

        //判斷是否記住登陸
        (function () {
            var username = localStorage.getItem("username");
            var password = localStorage.getItem("password");
            if (username !== null && password !== null) {
                document.getElementById('username').value = username;
                document.getElementById('password').value = password;
                document.getElementById('remember').checked = true;
            }
        })();

        //歡迎提示，可刪除
        var tip = showTip("歡迎回來喵！");

        //點擊登入按鈕
        document.getElementById('login-submit').onclick = function (e) {
            e.preventDefault();
            var _this = this;
            if (validataForm()) {
                _this.setAttribute("disabled", "disabled");
                var loginForm = document.getElementById('loginForm');
                var username = document.getElementById('username');
                var password = document.getElementById('password');
                var ajax = new XMLHttpRequest();
                var url = "/site/loginAction";//這是登陸的act
                ajax.open("POST", url + "?r_=" + new Date().getTime() + "&" + loginForm.serialize(), true);
                ajax.send();
                ajax.onreadystatechange = function () {
                    if (ajax.readyState === 4 && ajax.status === 200) {
                        var obj = JSON.parse(ajax.responseText);
                        /********************按照後臺返回的數據來處理*******************/
                        if (obj.success) {
                            rememberLogin(username.value, password.value);
                            tip = showTip("<span style='color: #5FB878;'>登陸成功，正在跳轉到首頁...</span>");
                            setTimeout(function () {
                                window.location.href = "/redare/controlPanel";
                            }, 500);
                        } else {
                            tip = showTip(obj.message, false);
                            updateCode();
                        }
                        /**********************到這裏*********************************/
                        _this.removeAttribute("disabled");
                    } else {
                        tip = showTip("服務器請求失敗！" + ajax.status, false);
                    }
                }
            }
        };

        //回車登陸
        document.getElementById('vercode').onkeyup = function (e) {
            if (window.event) e = window.event;
            var code = e.charCode || e.keyCode;
            if (code === 13) {
                document.getElementById('login-submit').click();
            }
        };

        //點擊圖片驗證刷新
        document.getElementById('login-vercode').onclick = function (e) {
            updateCode();
        };

        //刷新驗證碼
        function updateCode() {
            var _code = document.getElementById('login-vercode');
            _code.src = _code.src + "?t_" + new Date().getTime();
        }

        //記住登陸
        function rememberLogin(username, password) {
            var remember = document.getElementById('remember');
            if (remember.checked) {
                localStorage.setItem("username", username);
                localStorage.setItem("password", password);
            } else {
                localStorage.removeItem("username");
                localStorage.removeItem("password");
            }
        }

        // 判斷是否填寫了相關表單
        function validataForm() {
            clearTimeout(tip);//清除tip，防止影響到下一次提示
            var username = document.getElementById('username');
            var password = document.getElementById('password');
            var vercode = document.getElementById('vercode');
            if (!/^[0-9a-zA-Z\_]+$/.test(username.value)) {
                tip = showTip("用戶名爲字母數字組成！");
                return false;
            }
            if (!/^.{6,32}$/.test(password.value)) {
                tip = showTip("密碼爲6到32爲任意字符組成！");
                return false;
            }
            if (!/^[0-9a-zA-Z]{4}$/.test(vercode.value)) {
                tip = showTip("驗證碼爲4字母數字組成！");
                return false;
            }
            return true;
        }

        //顯示提示框
        function showTip(tipTxt, autoHide) {
            autoHide = (autoHide === undefined ? true : autoHide);
            var loginTip = document.getElementsByClassName("login-tip")[0];
            loginTip.innerHTML = tipTxt;
            loginTip.classList.remove("hide");
            if (autoHide) {
                tip = setTimeout(function () {
                    loginTip.classList.add("hide");
                }, 3000);
            }
            return tip;
        }

        // 表單序列化，
        HTMLFormElement.prototype.serialize = function () {
            var form = this;
            // 表單數據
            var arrFormData = [], objFormData = {};
            [].slice.call(form.elements).forEach(function (ele) {
                // 元素類型和狀態
                var type = ele.type, disabled = ele.disabled;
                // 元素的鍵值
                var name = ele.name, value = encodeURIComponent(ele.value || 'on');
                // name參數必須，元素非disabled態，一些類型忽略
                if (!name || disabled || !type || (/^reset|submit|image$/i.test(type)) || (/^checkbox|radio$/i.test(type) && !ele.checked)) {
                    return;
                }
                type = type.toLowerCase();
                if (type !== 'select-multiple') {
                    if (objFormData[name]) {
                        objFormData[name].push(value);
                    } else {
                        objFormData[name] = [value];
                    }
                } else {
                    [].slice.call(ele.querySelectorAll('option')).forEach(function (option) {
                        var optionValue = encodeURIComponent(option.value || 'on');
                        if (option.selected) {
                            if (objFormData[name]) {
                                objFormData[name].push(optionValue);
                            } else {
                                objFormData[name] = [optionValue];
                            }
                        }
                    });
                }
            });
            for (var key in objFormData) {
                arrFormData.push(key + '=' + objFormData[key].join());
            }
            return arrFormData.join('&');
        };
    };
</script>
</html>
效果圖：html
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