只有IE浏览器才支持这个构造函数,可以用这个来判断,当前是否为IE浏览器
var isIE=!!window.ActiveXObject;
在IE的不同版本下,要创建XHR对象,也需要通过这个构造函数来创建(构造时的参数不一样)。
因为ActiveXObject的使用容易存在安全问题,如IE11中报错
Automation 服务器不能创建对象
解决办法:
Internet选项-安全-自定义安全级别-启用“对未标记为可安全执行脚本的ActiveX控件初始化并执行脚本”
JavaScript 中 ActiveXObject 对象是启用并返回 Automation对象的引用。
newObj = new ActiveXObject( servername.typename[, location])
附件:https://files.cnblogs.com/files/hellohello/oleview_setup.zip
具体这个new ActiveXObject能创建出来什么对象,去搜索一下“VBS CreateObject”就知道了,后面举出几个例子
取得机器名,登录域及登录用户名
var WshNetwork = new ActiveXObject("WScript.Network");
console.log("Domain = " + WshNetwork.UserDomain); // Domain = YGSOFT
console.log("Computer Name = " + WshNetwork.ComputerName); // Computer Name = GRIS-LIWENJUN
console.log("User Name = " + WshNetwork.UserName); // User Name = liwenjun
Wscript.shell
获取环境变量
let pnsys = new ActiveXObject("WScript.shell");
let pn = pnsys.Environment("PROCESS");
console.log(pn("WINDIR")); // C:\Windows
执行cmd指令(启动了计算器)
var calc=new ActiveXObject("WScript.shell");
calc.Run("calc");
注册表操作(输出400)
var myreadreg = new ActiveXObject("WScript.shell");
try {
console.log(myreadreg.RegRead("HKEY_CURRENT_USER\\Console\\Git Bash\\FontWeight"));
}
catch (e) {
console.log("读取的值不存在!");
}
写入注册表
mywritereg.RegWrite("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\MyTest","c:\\mytest.exe");
删除注册表
mydelreg.RegDelete("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\MyTest");
Scripting.filesystemobject
获取磁盘信息(如C盘)
var fs = new ActiveXObject("scripting.filesystemobject");
d = fs.GetDrive('c');
s = "卷标:" + d.VolumeName;
s += "------" + "剩余空间:" + d.FreeSpace / 1024 / 1024 / 1024 + "G";
s += "------" + "磁盘序列号:" + d.serialnumber;
console.log(s)
获取文件信息
var myfile = new ActiveXObject("scripting.filesystemobject");
var fi = myfile.GetFile('D:\\DemandFlowDeptBO.java');
console.log("文件类型:" + fi.type + "文件大小:" + fi.size / 1024 / 1024 + "M" + "最后一次访问时间:" + fi.DateLastAccessed);
遍历目录
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fldr = fso.GetFolder('D:\\vm');
var file = new Enumerator(fldr.files);
var folderArr = [];
var folder = new Enumerator(fldr.SubFolders);
for (; !folder.atEnd(); folder.moveNext()) {
var folderStr = String(folder.item());
folderArr.push(String(folder.item()).substring(folderStr.lastIndexOf("\\") + 1, folderStr.length));
}
console.log(folderArr.join(" "));
遍历文件
var fso = new ActiveXObject("Scripting.FileSystemObject");
var fldr = fso.GetFolder(para);
var file = new Enumerator(fldr.files);
var fileArr = [];
for (; !file.atEnd(); file.moveNext()) {
var fileStr = String(file.item());
fileArr.push(String(file.item()).substring(fileStr.lastIndexOf("\\") + 1, fileStr.length));
}
alert(fileArr.join(" "));
读写文件
function createText1(){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var f1 = fso.createtextfile("c:\\myjstest.txt",true);
f1.WriteLine("这是内容");
f1.close();
var kk=fso.OpenTextFile("c:\\\\a.txt");//打开文件
while(!kk.atEndOfLine){
document.writeln(kk.readLine());//读取文件,并输出
}
}
function createText2(){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var f1 = fso.GetFile("c:\\myjstest.txt");
}
WbemScripting.SWbemLocator
获取CPU核数
var locator = new ActiveXObject("WbemScripting.SWbemLocator");
function getCpu() {
var service = locator.ConnectServer(".");
var properties = service.ExecQuery("SELECT * FROM Win32_Processor");
var e = new Enumerator(properties); // 有阻塞
var p = e.item();
return p.LoadPercentage;
}
let data = getCpu();
console.log(data) //
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