js实现精确统计网站访问量的代码分享

JS 精确统计网站访问量。

代码如下：

/**

* vlstat 浏览器统计脚本

*/

var statIdName = "vlstatId";

var xmlHttp;

/**

* 设置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";

}

/**

* 获取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 "";

}

/**

* 获取当前时间戳

*/

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;

}

/**

* 设置StatId

*/

function setStatId() {

var cookieId = genStatId();

setCookie(statIdName, cookieId, 365);

}

/**

* 获取StatId

*/

function getStatId() {

var statId = getCookie(statIdName);

if (statId != null && statId.length > 0) {

return statId;

} else {

setStatId();

return getStatId();

}

}

/**

* 获取UA

*/

function getUA() {

var ua = navigator.userAgent;

if (ua.length > 250) {

ua = ua.substring(0, 250);

}

return ua;

}

/**

* 获取浏览器类型

*/

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";

}

}

/**

* 获取浏览器语言

*/

function getBrowerLanguage() {

var lang = navigator.browserLanguage;

return lang != null && lang.length > 0 ? lang : "";

}

/**

* 获取操作系统

*/

function getPlatform() {

return navigator.platform;

}

/**

* 获取页面title

*/

function getPageTitle() {

return document.title;

}

/**

* 创建一个form

* 

* @return

*/

function createSubmitForm() {

var frm = document.createElement("form");

document.body.appendChild(frm);

frm.method = "POST";

return frm;

}

/**

* 为form创建一个元素

* 

* @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;

}

/**

* 构造XMLHttpRequest对象

* 

* @return

*/

function createXMLHttpRequest() { 

if (window.ActiveXObject) { 

xmlHttp = new ActiveXObject('Microsoft.XMLHTTP'); 

} else if (window.XMLHttpRequest) { 

xmlHttp = new XMLHttpRequest(); 

} 

}

/**

* url指定跳转页,data是要post的数据。func类似于函数指针

* 

* @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) {

/**

**调用想要的函数

**edit by www.jbxue.com

**/

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);

}