網站一般都有訪問量統計工具，比較高效實用的工具多種多樣，并且非常的精確。實用javascript也可以簡單的實現此功能，盡管沒有網絡上常用的精確，不過的確也實現了一定的功能，下面就是一段代碼實例，感興趣的朋友可以參考一下:
<script type="text/javascript">/*** vlstat 瀏覽器統計腳本*/var statIdName = "vlstatId";var xmlHttp;/*** 設置cookieId*/function setCookie(c_name, value, expiredays) { var exdate = new Date(); exdate.setDate(exdate.getDate() + expiredays); document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()) + ";path=/;domain=cecb2b.com";}/*** 獲取cookieId*/function getCookie(c_name) { if (document.cookie.length > 0) { c_start = document.cookie.indexOf(c_name + "="); if (c_start != -1) { c_start = c_start + c_name.length + 1; c_end = document.cookie.indexOf(";", c_start); if (c_end == -1) { c_end = document.cookie.length; } return unescape(document.cookie.substring(c_start, c_end)); } } return "";}/*** 獲取當前時間戳*/function getTimestamp() { var timestamp = Date.parse(new Date()); return timestamp;}/*** 生成statId*/function genStatId() { var cookieId = getTimestamp(); cookieId = "vlstat" + "-" + cookieId + "-" + Math.round(Math.random() * 3000000000); return cookieId;}/*** 設置StatId*/function setStatId() { var cookieId = genStatId(); setCookie(statIdName, cookieId, 365);}/*** 獲取StatId*/function getStatId() { var statId = getCookie(statIdName); if (statId != null && statId.length > 0) { return statId; } else { setStatId(); return getStatId(); }}/*** 獲取UA*/function getUA() { var ua = navigator.userAgent; if (ua.length > 250) { ua = ua.substring(0, 250); } return ua;}/*** 獲取瀏覽器類型*/function getBrower() { var ua = getUA(); if (ua.indexOf("Maxthon") != -1) { return "Maxthon"; } else if (ua.indexOf("MSIE") != -1) { return "MSIE"; } else if (ua.indexOf("Firefox") != -1) { return "Firefox"; } else if (ua.indexOf("Chrome") != -1) { return "Chrome"; } else if (ua.indexOf("Opera") != -1) { return "Opera"; } else if (ua.indexOf("Safari") != -1) { return "Safari"; } else { return "ot"; }}/*** 獲取瀏覽器語言*/function getBrowerLanguage() { var lang = navigator.browserLanguage; return lang != null && lang.length > 0 ? lang : "";}/*** 獲取操作系統*/function getPlatform() { return navigator.platform;}/*** 獲取頁面title*/function getPageTitle() { return document.title;}/*** 創建一個form* * @return*/function createSubmitForm() { var frm = document.createElement("form"); document.body.appendChild(frm); frm.method = "POST"; return frm;}/*** 為form創建一個元素* * @param inputForm* @param elementName* @param elementValue* @return*/function createFormElement(frmInput, elementName, elementValue) { var element = document.createElement("input"); element.setAttribute("id", elementName); element.setAttribute("name", elementName); element.setAttribute("type", "hidden"); element.setAttribute("value", elementValue); frmInput.appendChild(element); return element;}/*** 構造XMLHttpRequest對象* * @return*/function createXMLHttpRequest() { if (window.ActiveXObject) { xmlHttp = new ActiveXObject('Microsoft.XMLHTTP'); } else if (window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } }/*** url指定跳轉頁,data是要post的數據。func類似于函數指針* * @param url* @param data* @param func* @return*/function AjaxPost(url, data, func) { var httpRequest = createHttpRequest(); if (httpRequest) { httpRequest.open("POST", url, true); httpRequest.setRequestHeader("content-length", data.length); httpRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); httpRequest.send(data); httpRequest.onreadystatechange = function() { if (httpRequest.readyState == 4) { try { if (httpRequest.status == 200) { if (func) { // 這里可以調用想要的函數 func(httpRequest.responseText); } } } catch (e) { alert("Error XMLHttpRequest!"); } } } } else { alert("Error initializing XMLHttpRequest!"); }}function vlstatInitLE(vlch, vlch1, vlch2, vlch3) { var p; var vlstatCH = vlch != null && vlch.length > 0 ? vlch : ""; var vlstatCH1 = vlch1 != null && vlch1.length > 0 ? vlch1 : ""; var vlstatCH2 = vlch2 != null && vlch2.length > 0 ? vlch2 : ""; var vlstatCH3 = vlch3 != null && vlch3.length > 0 ? vlch3 : ""; var vlstatCookieId = getStatId(); var vlstatUA = encodeURIComponent(getUA()); var vlstatIPAddress = document.localName; var vlstatREFURL = encodeURIComponent(document.referrer); var vlstatURL = encodeURIComponent(document.URL); var vlstatScreenX = screen.width; var vlstatScreenY = screen.height; var vlstatOS = getPlatform(); var vlstatBrower = getBrower(); var vlstatBrowerLanguage = getBrowerLanguage(); var vlstatPageTitle = encodeURIComponent(getPageTitle()); var vlstatAction = "index.php"; p = "cookieId=" + vlstatCookieId + "&ua=" + vlstatUA + "&ip=" + vlstatIPAddress + "&refurl=" + vlstatREFURL + "&url=" + vlstatURL + "&screenX=" + vlstatScreenX + "&screenY=" + vlstatScreenY + "&os=" + vlstatOS + "&brower=" + vlstatBrower + "&browerLang=" + vlstatBrowerLanguage + "&title=" + vlstatPageTitle + "&ch=" + vlstatCH + "&ch1=" + vlstatCH1 + "&ch2=" + vlstatCH2 + "&ch3=" + vlstatCH3; var urlGo = vlstatAction + "?" + p; createXMLHttpRequest();xmlHttp.open('GET', urlGo);xmlHttp.send(null);}</script> 希望本文所述對大家學習javascript程序設計有所幫助。
