当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 自动更新作用

Javascript
JavaScript 序列化对象实现代码
替代window.event.srcElement效果的可兼容性的函数
div+css+js模拟tab切换效果 事件绑定 IE,firefox兼容
IE和Firefox下event事件杂谈
javascript option onclick事件ie解决方案 兼容ie,firefox
javascript demo 基本技巧
用js实现层随着内容大小动态渐变改变 推荐
JS 的应用开发初探(mootools)
JS 在数组插入字符的实现代码(可参考JavaScript splice() 方法)
JQuery Tips(4) 一些关于提高JQuery性能的Tips
jQuery 淡入淡出、展开收缩菜单实现代码
js控制div及网页相关属性的代码
javascript 翻页测试页(动态创建标签并自动翻页)
Js获取table当前tr行的值的代码
IE 上下滚动展示模仿Marquee机制
jQuery解决iframe高度自适应代码
jQuery 连续列表实现代码
利用jQuery的$.event.fix函数统一浏览器event事件处理
Javascript和Ajax中文乱码吐血版解决方案
js Firefox 加入收藏夹功能代码 兼容Firefox 和 IE

Javascript 中的 自动更新作用


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-09-12   浏览: 122 ::
收藏到网摘: n/a

复制代码 代码如下:

function CLASS_AUTOUPDATE(instanceName,win)
{
this.instanceName = instanceName;
this.updating = false;
this.error = false;
this.updateInfo = "";
this.nextVersion = "";
this.ver = "";
this.win = win;
this.updatePath = "";
this.updateFileName = "";
this.softName = "";
this.refresh();
}
CLASS_AUTOUPDATE.prototype.onafterupdate = function()
{
var _window = this.win;
var tempMessageWidth = 360;
var tempMessageHeight = 160;
var tempMessageLeft = (document.body.clientWidth - tempMessageWidth) /2;
var tempMessageTop = (document.body.clientHeight - tempMessageHeight) /2;
var feature = {
title:"更新完毕",
width:tempMessageWidth,
height:tempMessageHeight,
left:tempMessageLeft,
top:tempMessageTop,
borderColor:"#8B89A1",
backgroundColor:"#FFFFFF",
color:"#000000",
titleBackgroundColor:"#8B89A1",
titleColor:"#FFFFFF",
dragable:true
};
var THIS = this;
var tempMessageContent = [];
//tempMessageContent[tempMessageContent.length] = "<div style='font-size:12px;padding:5px'>";
tempMessageContent[tempMessageContent.length] = this.updateInfo;
//tempMessageContent[tempMessageContent.length] = "<br/><br/>";
tempMessageContent[tempMessageContent.length] = "<div align=center><span class='bt'><input type='button' value=' OK ' class='bt' id='bt_update_ok'></span></div>";
tempMessageContent[tempMessageContent.length] = "</div>";
_window.open("updateOk",feature);
_window.write("updateOk",tempMessageContent.join(""),false);
_window.items["updateOk"].all("bt_update_ok").onclick = function()
{
_window.close("updateOk");
}
_window.items["updateOk"].onunload = function()
{
if(THIS.error==false&&THIS.updateFileList.length>0)
{
document.location.reload();
}
}
}
CLASS_AUTOUPDATE.prototype.check = function()
{
var _current_version,_new_version,_exist_new_ver;

//检查配置文件
var configXML = new CLASS_XML("xml\\autoupdate.xml");
if(configXML.error==false)
{
var _update_date,_autoupdate_day,_current_version;
var _save_or_not;
var _d = new Date();
var _dd = _d.getFullYear() + "-" + (_d.getMonth()+1) + "-" + _d.getDate();
//检查是否有更新时间段设置
if(configXML.selectSingleNode("/Config/UpdateDate")==null)
{
configXML.setText("/Config","UpdateDate", _dd);
_update_date = _dd;
_save_or_not = true;
}
else
{
_update_date = configXML.getText("/Config","UpdateDate", "1900-01-01");
}
if(configXML.selectSingleNode("/Config/AutoUpdateDay")==null)
{
configXML.setText("/Config","AutoUpdateDay", "10");
_autoupdate_day = "10";
_save_or_not = true;
}
else
{
_autoupdate_day = configXML.getText("/Config","AutoUpdateDay", "10");
}
_autoupdate_day = _autoupdate_day *1;
if(configXML.selectSingleNode("/Config/CurrentVersion")==null)
{
configXML.setText("/Config","CurrentVersion", "0.32");
_current_version = "0.32";
_save_or_not = true;
}
else
{
_current_version = configXML.getText("/Config","CurrentVersion", "0.32");
}
_current_version = _current_version * 1;

//判断是否今天去连接服务器
var _od = new Date(_update_date.replace(/-/g, "\/"));
if(_d.getTime()-_od.getTime()>_autoupdate_day*24*3600*1000)
{
var newDoc = new CLASS_XML();
newDoc.loadRemoteFile(this.updatePath + this.softName + "/" + this.updateFileName);
if(newDoc.selectSingleNode("/Config/CurrentVersion")==null)
{
newDoc.setText("/Config","CurrentVersion", "0.32");
_new_version = "0.32";
}
else
{
_new_version = newDoc.getText("/Config","CurrentVersion", "0.32");
}
_new_version = _new_version * 1;
//检查是否有新版本
if(_new_version>_current_version)
{
_exist_new_ver = true;
}
configXML.setText("/Config","UpdateDate",_dd);
_save_or_not = true;
}
if(_save_or_not)
{
configXML.save();
}
}
if(_exist_new_ver)
{
var _window = this.win;
var tempMessageWidth = 260;
var tempMessageHeight = 120;
var tempMessageLeft = (document.body.clientWidth - tempMessageWidth) /2;
var tempMessageTop = (document.body.clientHeight - tempMessageHeight) /2;
var feature = {
title:"升级",
width:tempMessageWidth,
height:tempMessageHeight,
left:tempMessageLeft,
top:tempMessageTop,
borderColor:"#8B89A1",
backgroundColor:"#FFFFFF",
color:"#000000",
titleBackgroundColor:"#8B89A1",
titleColor:"#FFFFFF",
dragable:true
};
var THIS = this;
var tempMessageContent = [];
//tempMessageContent[tempMessageContent.length] = "<div style='font-size:12px;padding:5px'>";
tempMessageContent[tempMessageContent.length] = "<table width='100%' height='60' cellPadding='10'><tr><td valign='top'>有新版本,是否更新?<!--insert//--></td></tr></table>";
//tempMessageContent[tempMessageContent.length] = "<br/><br/>";
tempMessageContent[tempMessageContent.length] = "<div align=center><span class='bt'><input type='button' value=' Yes ' class='bt' id='bt_update_yes'></span> <span class='bt'><input type='button' value=' No ' class='bt' id='bt_update_no'></span></div>";
tempMessageContent[tempMessageContent.length] = "</div>";
_window.open("update_or_not",feature);
_window.write("update_or_not",tempMessageContent.join(""),false);
THIS.ver = _current_version;
_window.items["update_or_not"].all("bt_update_yes").onclick = function()
{
THIS.ver = _new_version;
_window.close("update_or_not");
THIS.update();
}
_window.items["update_or_not"].all("bt_update_no").onclick = function()
{
_window.close("update_or_not");
}
_window.items["update_or_not"].onunload = function()
{
}
}

}
CLASS_AUTOUPDATE.prototype.update = function()
{
this.updating = !this.updating;
var t = new Date();
var THIS = this;
if(this.error == false)
{
//得到新配置文档
var newDoc = new CLASS_XML();
newDoc.loadRemoteFile(this.updatePath + this.softName + "/" + this.updateFileName);
this.error = newDoc.error;
if(this.error)
{
THIS.updating = false;
THIS.updateInfo = "<table width='100%' height='100' cellPadding='10'><tr><td valign='top'>连接服务器失败<!--insert//--></td></tr></table>";
}
else
{
var updateFileNodes = newDoc.selectNodes("//SystemFile");
var updateInfoNode = newDoc.selectSingleNode("//UpdateInfo");
var nextVersion = newDoc.selectSingleNode("//nextversion");
if(updateInfoNode != null)
{
THIS.updateInfo = updateInfoNode.childNodes[0].text;
}
if(nextVersion != null)
{
THIS.nextVersion = nextVersion.childNodes[0].text;
}
THIS.updateFileList = [];
for(var i=0;i<updateFileNodes.length;i++)
{
var curUpdateFileName = updateFileNodes[i].getAttribute("name").toLowerCase();
var curUpdateFileVersion = updateFileNodes[i].getAttribute("version").toLowerCase();
var curUpdateFilePath = updateFileNodes[i].getAttribute("path").toLowerCase();
if(THIS.systemFiles[curUpdateFileName] == null || THIS.systemFiles[curUpdateFileName] != curUpdateFileVersion)
{
//本地没有该文件或者版本号不一致
THIS.updateFileList[THIS.updateFileList.length] =
{
name :curUpdateFileName,
version :curUpdateFileVersion,
path :curUpdateFilePath,
type :"text"
};
}
}
newDoc.dispose();

if(THIS.updateFileList.length == 0)
{
THIS.updating = false;
THIS.updateInfo = "<table width='100%' height='100' cellPadding='10'><tr><td valign='top'>没有需要更新的文件<!--insert//--></td></tr></table>";
}
else
{
var configXML = new CLASS_XML("xml\\autoupdate.xml");
//添加更新信息
if(configXML.error==false&&THIS.updateInfo.length>0)
{
var _updateInfo = configXML.createElement("UpdateInfo");
var _cdata = configXML.createCDATASection(THIS.updateInfo);
_updateInfo .appendChild(_cdata);
configXML.root().appendChild(_updateInfo);
//添加下版本预告
var _nextVersion = configXML.selectSingleNode("//nextversion");
if( _nextVersion==null)
{
var __next = configXML.createElement("nextversion");
var __cdata= configXML.createCDATASection(THIS.nextVersion);
__next.appendChild(__cdata);
configXML.root().appendChild(__next);
}
else
{
if(_nextVersion.childNodes.length==0)
{
_nextVersion.appendChild(configXML.createCDATASection(""));
}
_nextVersion.childNodes[0].text = THIS.nextVersion;
}
configXML.setText("/Config","CurrentVersion",THIS.ver);
configXML.save();
}
configXML.dispose();
THIS.updateFile();
}
}
}
else
{
this.updateInfo = "<table width='100%' height='100' cellPadding='10'><tr><td valign='top'>加载配置文件失败!<!--insert//--></td></tr></table>";
}
this.updating = false;
this.onafterupdate();
}
CLASS_AUTOUPDATE.prototype.updateFile = function(curUpdateId)
{
var t = new Date();
var THIS = this;
for(var i= 0;i<this.updateFileList.length;i++)
{
var curUpdateFile = this.updateFileList[i];
if(curUpdateFile.type == "base64")
{
var url = this.updatePath + this.softName + "/base64.aspx?src=" + curUpdateFile.name + "&t=" + t.valueOf();
}
else if(curUpdateFile.type == "text")
{
var url = this.updatePath + this.softName + "/" + curUpdateFile.path + "/" + curUpdateFile.name;
}
//下载文件
var errors = this.downloadFile(url,curUpdateFile.path,curUpdateFile.name);
if(this.error==false)
{
//记录当前版本信息
var configXML = new CLASS_XML("xml\\autoupdate.xml");
if(configXML.error==false)
{
var systemFiles = configXML.selectSingleNode("//SystemFiles");
if(systemFiles == null)
{
systemFiles = configXML.createElement("SystemFiles");
configXML.selectSingleNode("/Config").appendChild(systemFiles);
}
var systemFile = configXML.selectSingleNode("//SystemFiles/SystemFile[@name='" + curUpdateFile.name.toLowerCase() + "']");
if(systemFile == null)
{
systemFile = configXML.createElement("SystemFile");
systemFile.setAttribute("name",curUpdateFile.name.toLowerCase());
systemFile.setAttribute("path",curUpdateFile.path.toLowerCase());
configXML.selectSingleNode("//SystemFiles").appendChild(systemFile);
}
systemFile.setAttribute("version",curUpdateFile.version);
configXML.save();
configXML.dispose();
this.error = false;
this.updateInfo += errors + "\n";
}
else
{
this.updateInfo += "<table width='100%' height='100' cellPadding='10'><tr><td valign='top'>加载配置文件出错!<!--insert//--></td></tr></table>";
}
}
}
}
CLASS_AUTOUPDATE.prototype.downloadFile = function(url,path,filename)
{
try
{
var xmlHTTP = new ActiveXObject("Microsoft.XMLHTTP");
xmlHTTP.open("Get",url,false);
xmlHTTP.send();
if(xmlHTTP.readyState==4&&xmlHTTP.status==200)
{
var adodbStream = new ActiveXObject("ADODB" + "." + "Stream");
//判断目录是否存在,不存在则创建
this.buildPath(path);
var strLocalURL = path.length>0?path + "\\" +filename:filename;
//1=adTypeBinary
adodbStream.Type= 1;
adodbStream.Open();
adodbStream.write(xmlHTTP.responseBody);
adodbStream.SaveToFile(strLocalURL,2);
adodbStream.Close();
adodbStream = null;
xmlHTTP = null;
}
else
{
this.error = true;
return filename + "下载失败";
}
return "";
}
catch(e)
{
this.error = true;
return e.description;
}
}
CLASS_AUTOUPDATE.prototype.refresh = function()
{
var configXML = new CLASS_XML("xml\\autoupdate.xml");
if(configXML.error==false)
{
var _softName = configXML.selectSingleNode ("/Config/SoftName");
var _updatePath = configXML.selectSingleNode ("/Config/UpdatePath");
var _updateFileName = configXML.selectSingleNode ("/Config/UpdateFileName");
this.updatePath = _updatePath !=null?_updatePath.text :"http://dooit.3322.org/";
this.softName = _softName !=null?_softName.text :"cc";
this.updateFileName = _updateFileName!=null?_updateFileName.text:"autoupdate.xml";
this.systemFiles = {};
var tempSystemFileNodes = configXML.selectNodes("/Config/SystemFiles/SystemFile");
for(var i=0;i<tempSystemFileNodes.length;i++)
{
this.systemFiles[tempSystemFileNodes[i].getAttribute("name")] = tempSystemFileNodes[i].getAttribute("version");
}
}
else
{
this.error = true;
}
configXML.dispose();
}
CLASS_AUTOUPDATE.prototype.buildPath = function(path)
{
var _baseUrl = unescape(document.location.href.substring(document.location.href.lastIndexOf("/")+1,-1)).replace(/^file\:\/\/\//i,"").replace(/\//g,"\\");
var _path = path.replace(/^\s*|\s*$/g,"");
var _fullPath = "";
//得到全路径
if(/^\w\:\\/.test(_path) == false){
_fullPath = _baseUrl + _path;
}else{
_fullPath = _path;
}
var p = _fullPath.split(/\\|\//g);
var fso = new ActiveXObject("Scripting.FileSystemObject");
var t = "";
for(var i=0;i<p.length;i++){
t += p[i] + "\\";
try
{
if(!fso.FolderExists(t))
{
fso.CreateFolder(t);
}
}
catch(e)
{
return false;
}
}
return true;
}