jquery使用cookie實現七天內自動登錄

Jquery將用戶名密碼存儲到cookie中

需要導入jquery.js和jquery.cookie.js

html部分:

<div class="main-content">
    <div class="container">
        <p class="title">登錄</p>
        <div class="content">
            <div class="user-info user-account">
                <span class="user-info-title">賬號</span>
                <input type="text" class="user-info-value" id="user-account" placeholder="手機號碼">
            </div>
            <div class="user-info user-password">
                <span class="user-info-title">密碼</span>
                <input type="password" class="user-info-value" id="user-password" placeholder="密碼">
            </div>
            <div class="user-info user-verify-code">
                <span class="user-info-title">驗證碼</span>
                <input type="text" class="user-info-value" id="user-verify-code" placeholder="驗證碼">
                 <a class="get-verify-code"></a>
            </div>
            <div class="user-info user-rmb">
                <input type="checkbox" id="ck_rmbUser" />
                <span>記住賬號和密碼</span>
            </div>           
            <a class="login" onclick="save()">登錄</a>
            <a href="/pw-forget.jsp" class="forgot-password">忘記密碼</a>
            <a href="/register.jsp" class="to-register">立即註冊</a>
        </div>
        <div class="other-way">
            <p>第三方登錄</p>
            <a  href="/login-wx.jsp" class="other-way-item wechat">
            <i class="iconfont icon-wechat"></i></a>
        </div>
    </div>
</div>

javascript部分: 

<script>
	$(document).ready(function () {
	    if ($.cookie("rmbUser") == "true") {
		    $("#ck_rmbUser").attr("checked", true);
			$("#user-account").val($.cookie("username"));
			$("#user-password").val($.cookie("password"));
		}
	});
			 
	//記住用戶名密碼
	function save() {
		if ($("#ck_rmbUser").is(':checked')) {
			var str_username = $("#user-account").val();
			var str_password = $("#user-password").val();
			$.cookie("rmbUser", "true", { expires: 7 }); //存儲一個帶7天期限的cookie
			$.cookie("username", str_username, { expires: 7 });
			$.cookie("password", str_password, { expires: 7 });
		}
		else {
			 $.cookie("rmbUser", "false", { expire: -1 });
			 $.cookie("username", "", { expires: -1 });
			 $.cookie("password", "", { expires: -1 });
		}
	};
</script>

CSS部分:

<style>
            html,
            body,
            .wrapper {
                width: 100%;
                height: 100%;
                background-color: #f4f4f4;
            }
            
            .main-content {
                padding: 25px 0 150px;
                color: #333;
                background: #f4f4f4;
            }
            
            .title {
                margin-bottom: 25px;
                font-size: 34px;
                line-height: 49px;
                text-align: center;
            }
            
            .content {
                box-sizing: border-box;
                margin: 0 auto;
                padding: 25px 90px 0;
                width: 575px;
                height: 400px;
                background: #fff;
            }
            
            .user-info {
                overflow: hidden;
                margin-bottom: 24px;
            }
            
            .user-info-title {
                display: block;
                float: left;
                margin-right: 24px;
                width: 60px;
                color: #373737;
                font-size: 14px;
                font-weight: 700;
                line-height: 40px;
                text-align: right;
            }
            
            .user-info-value {
                display: block;
                box-sizing: border-box;
                padding-left: 24px;
                width: 300px;
                height: 40px;
                line-height: 40px;
                border: 1px solid #d9d9d9;
                border-radius: 20px;
            }
            
            .user-verify-code {
                position: relative;
            }
            
            .get-verify-code {
                display: block;
                position: absolute;
                top: 1px;
                right: 12px;
                width: 120px;
                height: 38px;
                border-radius: 20px;
                background: rgba(16, 16, 16, .1);
                overflow: hidden;
                box-shadow: -1px 0 2px 0 #333;
            }
            
            .get-verify-code img {
                display: block;
                position: absolute;
                top: -2px;
                left: 0;
                width: 120px;
                height: 42px;
                border-radius: 20px;
            }
            
            .login {
                display: block;
                position: relative;
                margin: 0 auto 8px;
                width: 375px;
                height: 48px;
                line-height: 48px;
                font-size: 14px;
                color: #fff;
                background: #61b292;
                border-radius: 24px;
                text-align: center;
            }
            
            .login img {
                position: absolute;
                top: 4px;
                left: 167.5px;
                width: 40px;
                height: 40px;
            }
            
            .to-register {
                display: block;
                margin-left: 12px;
                font-size: 12px;
                color: #61b292;
                line-height: 40px;
            }
            
            .forgot-password {
                display: block;
                float: right;
                margin-right: 12px;
                font-size: 12px;
                color: #8e8e8e;
                line-height: 48px;
            }
            
            .to-register:hover,
            .forgot-password:hover {
                text-decoration: underline;
            }
            
            .header-container .header-doc-upload {
                display: none;
            }

            .other-way {
                text-align: center;
                margin-top: 30px;
                color: #999999;
            }
            .other-way > p {
                margin-bottom: 10px;
            }
            .other-way .other-way-item {
                display: inline-block;
                height: 40px;
                width: 40px;
                /*margin-right: 20px;*/
                line-height: 40px;
                border-radius: 20px;
                background-color: #CCCCCC;
            }
            .other-way .wechat:hover {
                background-color: #86DB48;
            }
            .other-way .other-way-item:nth-of-type(3) {
                margin-right: 0;
            }
            .other-way .icon-wechat,
            .other-way .icon-qq,
            .other-way .icon-weibo {
                color: #fff;
                font-size: 24px;
            }
            /*設置 placeholder 樣式*/
            
            input::-webkit-input-placeholder {
                color: #999;
            }
            
            input::-moz-placeholder {
                /* Mozilla Firefox 19+ */
                color: #999;
            }
            
            input:-moz-placeholder {
                /* Mozilla Firefox 4 to 18 */
                color: #999;
            }
            
            input:-ms-input-placeholder {
                /* Internet Explorer 10-11 */
                color: #999;
            }
            #ck_rmbUser {
            	margin-left:20px;
            	vertical-align:middle;
            }
            #ck_rmbUser+span {
            	font-size: 14px;
                font-weight: 700;
                margin-left:15px;
            }
            .user-rmb {
            	height: 20px;
            }
</style>

附上:jquery.cookie.js代碼:(這個網上也有插件下載)

/*!
 * jQuery Cookie Plugin v1.4.1
 * https://github.com/carhartl/jquery-cookie
 *
 * Copyright 2013 Klaus Hartl
 * Released under the MIT license
 */
(function (factory) {
	if (typeof define === 'function' && define.amd) {
		// AMD
		define(['jquery'], factory);
	} else if (typeof exports === 'object') {
		// CommonJS
		factory(require('jquery'));
	} else {
		// Browser globals
		factory(jQuery);
	}
}(function ($) {

	var pluses = /\+/g;

	function encode(s) {
		return config.raw ? s : encodeURIComponent(s);
	}

	function decode(s) {
		return config.raw ? s : decodeURIComponent(s);
	}

	function stringifyCookieValue(value) {
		return encode(config.json ? JSON.stringify(value) : String(value));
	}

	function parseCookieValue(s) {
		if (s.indexOf('"') === 0) {
			// This is a quoted cookie as according to RFC2068, unescape...
			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
		}

		try {
			// Replace server-side written pluses with spaces.
			// If we can't decode the cookie, ignore it, it's unusable.
			// If we can't parse the cookie, ignore it, it's unusable.
			s = decodeURIComponent(s.replace(pluses, ' '));
			return config.json ? JSON.parse(s) : s;
		} catch(e) {}
	}

	function read(s, converter) {
		var value = config.raw ? s : parseCookieValue(s);
		return $.isFunction(converter) ? converter(value) : value;
	}

	var config = $.cookie = function (key, value, options) {

		// Write

		if (value !== undefined && !$.isFunction(value)) {
			options = $.extend({}, config.defaults, options);

			if (typeof options.expires === 'number') {
				var days = options.expires, t = options.expires = new Date();
				t.setTime(+t + days * 864e+5);
			}

			return (document.cookie = [
				encode(key), '=', stringifyCookieValue(value),
				options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
				options.path    ? '; path=' + options.path : '',
				options.domain  ? '; domain=' + options.domain : '',
				options.secure  ? '; secure' : ''
			].join(''));
		}

		// Read

		var result = key ? undefined : {};

		// To prevent the for loop in the first place assign an empty array
		// in case there are no cookies at all. Also prevents odd result when
		// calling $.cookie().
		var cookies = document.cookie ? document.cookie.split('; ') : [];

		for (var i = 0, l = cookies.length; i < l; i++) {
			var parts = cookies[i].split('=');
			var name = decode(parts.shift());
			var cookie = parts.join('=');

			if (key && key === name) {
				// If second argument (value) is a function it's a converter...
				result = read(cookie, value);
				break;
			}

			// Prevent storing a cookie that we couldn't decode.
			if (!key && (cookie = read(cookie)) !== undefined) {
				result[name] = cookie;
			}
		}

		return result;
	};

	config.defaults = {};

	$.removeCookie = function (key, options) {
		if ($.cookie(key) === undefined) {
			return false;
		}

		// Must not alter options, thus extending a fresh object...
		$.cookie(key, '', $.extend({}, options, { expires: -1 }));
		return !$.cookie(key);
	};

}));

 

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