JavaScript 获取客户端计算机硬件及系统信息

1、浏览器信息

//浏览器信息function BrowserInfo() {    var userLanguage = navigator.userLanguage;     // 用户在自己的操作系统上设置的语言（火狐没有）      var userAgent = navigator.userAgent;           //包含以下属性中所有或一部分的字符串：appCodeName,appName,appVersion,language,platform      var systemLanguage = navigator.systemLanguage; // 用户操作系统支持的默认语言（火狐没有）    var info = "";    info += "浏览器属性信息： " + userAgent + "<br />";    info += "用户设置的操作系统语言： " + userLanguage + "<br />";    info += "操作系统支持的默认语言： " + systemLanguage + "<br />";    return info;}

2、客户端计算机硬件及系统信息

//CPU信息function CpuInfo() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");     var properties = service.ExecQuery("SELECT * FROM Win32_Processor");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr  bgcolor='#CDEDED' style='font-weight: bold;' ><td width='450' >CPU 信息</td></tr>";    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td >CPU序列号:" + p.ProcessorID + "</td></tr>";        info += "<tr><td >" + p.Caption + "</td></tr>";        info += "<tr><td >CPU编号：" + p.DeviceID + "</td></tr>";        info += "<tr><td >CPU型号：" + p.Name + "</td></tr>";        info += "<tr><td >CPU状态：" + p.CpuStatus + "</td></tr>";        info += "<tr><td >CPU可用性：" + p.Availability + "</td></tr>";        info += "<tr><td >CUP Level：" + p.Level + "</td></tr>";        info += "<tr><td >主机名称：" + p.SystemName + "</td></tr>";        info += "<tr><td >Processor Type：" + p.ProcessorType + "</td></tr>";    }    info += "</table>";    return info;}//主板信息function MainBoard() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");        var properties = service.ExecQuery("SELECT * FROM Win32_BaseBoard");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr bgcolor='#CDEDED' style='font-weight: bold;'><td width='450'>主板信息 </td></tr>";    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td >主板ID：" + p.SerialNumber + "</td></tr>";        info += "<tr><td >" + p.HostingBoard + "</td></tr>";        info += "<tr><td >制造商：" + p.Manufacturer + "</td></tr>";        info += "<tr><td >是否开启：" + p.PoweredOn + "</td></tr>";        info += "<tr><td >型号：" + p.Product + "</td></tr>";        info += "<tr><td >版本：" + p.Version + "</td></tr>";    }    info += "</table>";    return info;}//Ram信息  function RamInfo(){    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");        var system=new Enumerator (service.ExecQuery("SELECT * FROM Win32_ComputerSystem")).item();       var physicMenCap=Math.ceil(system.TotalPhysicalMemory/1024/1024);      //内存信息       var memory = new Enumerator (service.ExecQuery("SELECT * FROM Win32_PhysicalMemory"));    for (var mem = [], i = 0; !memory.atEnd(); memory.moveNext()) {        mem[i++] = { cap: memory.item().Capacity / 1024 / 1024, speed: memory.item().Speed };    }  }  //网络连接信息  function IpInfo(){      var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");    var properties = service.ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration Where IPEnabled=TRUE");      var e = new Enumerator (properties);      var info="<table border=1>";       info+="<tr bgcolor='#CDEDED' style='font-weight: bold;' ><td width='450'>网络连接信息：</td></tr>";      var i=1;      for (;!e.atEnd();e.moveNext ()){          var p = e.item ();          info+="<tr style='color: red'><td >MAC地址"+i+"：" + p.MACAddress + "</td></tr>";          info+="<tr style='color: red'><td >IP地址"+i+"：" + p.IPAddress(0) + "</td></tr>";          i++;      }      info+="</table>";       return info;  }// 操作系统信息function OsInfo() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");    var properties = service.ExecQuery("SELECT * FROM Win32_OperatingSystem");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr bgcolor='#CDEDED' style='font-weight: bold;' ><td width='450'>OS信息：</td></tr>";    var i = 1;    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td > " + p.BootDevice + "</td></tr>";        info += "<tr style='color: red'><td>" + p.BuildNumber + "</td></tr>";        info += "<tr style='color: red'><td>" + p.BuildType + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Caption + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CodeSet + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CountryCode + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CreationClassName + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CSCreationClassName + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CSDVersion + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CSName + "</td></tr>";        info += "<tr style='color: red'><td>" + p.CurrentTimeZone + "</td></tr>";        info += "<tr style='color: red'><td>" + p.DataExecutionPrevention_Available + "</td></tr>";        info += "<tr style='color: red'><td>" + p.DataExecutionPrevention_32BitApplications + "</td></tr>";        info += "<tr style='color: red'><td>" + p.DataExecutionPrevention_Drivers + "</td></tr>";        info += "<tr style='color: red'><td>" + p.DataExecutionPrevention_SupportPolicy + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Debug + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Description + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Distributed + "</td></tr>";        info += "<tr style='color: red'><td>" + p.EncryptionLevel + "</td></tr>";        info += "<tr style='color: red'><td>" + p.ForegroundApplicationBoost + "</td></tr>";        info += "<tr style='color: red'><td>" + p.FreePhysicalMemory + "</td></tr>";        info += "<tr style='color: red'><td>" + p.FreeSpaceInPagingFiles + "</td></tr>";        info += "<tr style='color: red'><td>" + p.FreeVirtualMemory + "</td></tr>";        info += "<tr style='color: red'><td>" + p.InstallDate + "</td></tr>";        info += "<tr style='color: red'><td>" + p.LargeSystemCache + "</td></tr>";        info += "<tr style='color: red'><td>" + p.LastBootUpTime + "</td></tr>";        info += "<tr style='color: red'><td>" + p.LocalDateTime + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Locale + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Manufacturer + "</td></tr>";        info += "<tr style='color: red'><td>" + p.MaxNumberOfProcesses + "</td></tr>";        info += "<tr style='color: red'><td>" + p.MaxProcessMemorySize + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Name + "</td></tr>";        info += "<tr style='color: red'><td>" + p.NumberOfLicensedUsers + "</td></tr>";        info += "<tr style='color: red'><td>" + p.NumberOfProcesses + "</td></tr>";        info += "<tr style='color: red'><td>" + p.NumberOfUsers + "</td></tr>";        info += "<tr style='color: red'><td>" + p.OperatingSystemSKU + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Organization + "</td></tr>";        info += "<tr style='color: red'><td>" + p.OSArchitecture + "</td></tr>";        info += "<tr style='color: red'><td>" + p.OSLanguage + "</td></tr>";        info += "<tr style='color: red'><td>" + p.OSProductSuite + "</td></tr>";        info += "<tr style='color: red'><td>" + p.OSType + "</td></tr>";        info += "<tr style='color: red'><td>" + p.OtherTypeDescription + "</td></tr>";        info += "<tr style='color: red'><td>" + p.PAEEnabled + "</td></tr>";        info += "<tr style='color: red'><td>" + p.PlusProductID + "</td></tr>";        info += "<tr style='color: red'><td>" + p.PlusVersionNumber + "</td></tr>";        info += "<tr style='color: red'><td>" + p.PortableOperatingSystem + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Primary + "</td></tr>";        info += "<tr style='color: red'><td>" + p.ProductType + "</td></tr>";        info += "<tr style='color: red'><td>" + p.RegisteredUser + "</td></tr>";        info += "<tr style='color: red'><td>" + p.SerialNumber + "</td></tr>";        info += "<tr style='color: red'><td>" + p.ServicePackMajorVersion + "</td></tr>";        info += "<tr style='color: red'><td>" + p.ServicePackMinorVersion + "</td></tr>";        info += "<tr style='color: red'><td>" + p.SizeStoredInPagingFiles + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Status + "</td></tr>";        info += "<tr style='color: red'><td>" + p.SuiteMask + "</td></tr>";        info += "<tr style='color: red'><td>" + p.SystemDevice + "</td></tr>";        info += "<tr style='color: red'><td>" + p.SystemDirectory + "</td></tr>";        info += "<tr style='color: red'><td>" + p.SystemDrive + "</td></tr>";        info += "<tr style='color: red'><td>" + p.TotalSwapSpaceSize + "</td></tr>";        info += "<tr style='color: red'><td>" + p.TotalVirtualMemorySize + "</td></tr>";        info += "<tr style='color: red'><td>" + p.TotalVisibleMemorySize + "</td></tr>";        info += "<tr style='color: red'><td>" + p.Version + "</td></tr>";          i++;    }    info += "</table>";    return info;}//用户帐号信息function UidInfo() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");    var properties = service.ExecQuery("SELECT * FROM Win32_UserAccount");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr bgcolor='#CDEDED' style='font-weight: bold;' ><td width='450'>用户帐号信息：</td></tr>";    var i = 1;    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td > " + i + ":" + p.AccountType + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Caption + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Description + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Disabled + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Domain + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.FullName + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.InstallDate + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.LocalAccount + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Lockout + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Name + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.PasswordChangeable + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.PasswordExpires + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.PasswordRequired + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.SID + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.SIDType + "</td></tr>";        info += "<tr style='color: red'><td > " + i + ":" + p.Status + "</td></tr>";        i++;    }    info += "</table>";    return info;}//系统组帐号信息function SysuidInfo() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");    var properties = service.ExecQuery("SELECT * FROM Win32_GroupUser");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr bgcolor='#CDEDED' style='font-weight: bold;' ><td colspan='3'>系统组帐号信息：</td></tr>";    info += "<tr style='color: red'><td >id</td><td >GroupComponent</td><td >PartComponent</td></tr>";    var i = 1;    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td > " + i + "</td>";        info += "<td>" + p.GroupComponent + "</td>";        info += "<td>" + p.PartComponent + "</td></tr>";        i++;    }    info += "</table>";    return info;}//系统管理组信息function SysmadInfo() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");    var properties = service.ExecQuery("SELECT * FROM Win32_Group");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr bgcolor='#CDEDED' style='font-weight: bold;' ><td colspan='10'>系统管理组信息：</td></tr>";    info += "<tr style='color: red'><td >id</td><td >Caption</td><td >Description</td><td >Domain</td><td >InstallDate</td><td >LocalAccount</td><td >Name</td><td >SID</td><td >SIDType</td><td >Status</td></tr>";    var i = 1;    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td>" + i + "</td>";        info += "<td>" + p.Caption + "</td>";        info += "<td>" + p.Description + "</td>";        info += "<td>" + p.Domain + "</td>";        info += "<td>" + p.InstallDate + "</td>";        info += "<td>" + p.LocalAccount + "</td>";        info += "<td>" + p.Name + "</td>";        info += "<td>" + p.SID + "</td>";        info += "<td>" + p.SIDType + "</td>";        info += "<td>" + p.Status + "</td></tr>";        i++;    }    info += "</table>";    return info;}//系统安装的服务信息function SysserInfo() {    var locator = new ActiveXObject("WbemScripting.SWbemLocator");    var service = locator.ConnectServer(".");     var properties = service.ExecQuery("SELECT * FROM Win32_Service");    var e = new Enumerator(properties);    var info = "<table border=1>";    info += "<tr bgcolor='#CDEDED' style='font-weight: bold;' ><td colspan='26'>系统安装的服务信息：</td></tr>";    info += "<tr style='color: red'><td>id</td><td>AcceptPause</td><td>AcceptStop</td><td>Caption</td><td>CheckPoint</td><td>CreationClassName</td><td>Description</td><td>DesktopInteract</td><td>DisplayName</td><td>ErrorControl</td><td>ExitCode</td><td>InstallDate</td><td>Name</td><td>PathName</td><td>ProcessId</td><td>ServiceSpecificExitCode</td><td>ServiceType</td><td>Started</td><td>StartMode</td><td>StartName</td><td>State</td><td>Status</td><td>SystemCreationClassName</td><td>SystemName</td><td>TagId</td><td>WaitHint</td></tr>";    var i = 1;    for (; !e.atEnd(); e.moveNext()) {        var p = e.item();        info += "<tr style='color: red'><td> " + i + "</td> ";        info += " <td>" + p.AcceptPause + "</td> ";        info += " <td>" + p.AcceptStop + "</td> ";        info += " <td>" + p.Caption + "</td> ";        info += " <td>" + p.CheckPoint + "</td> ";        info += " <td>" + p.CreationClassName + "</td> ";        info += " <td>" + p.Description + "</td> ";        info += " <td>" + p.DesktopInteract + "</td> ";        info += " <td>" + p.DisplayName + "</td> ";        info += " <td>" + p.ErrorControl + "</td> ";        info += " <td>" + p.ExitCode + "</td> ";        info += " <td>" + p.InstallDate + "</td> ";        info += " <td>" + p.Name + "</td> ";        info += " <td>" + p.PathName + "</td> ";        info += " <td>" + p.ProcessId + "</td> ";        info += " <td>" + p.ServiceSpecificExitCode + "</td> ";        info += " <td>" + p.ServiceType + "</td> ";        info += " <td>" + p.Started + "</td> ";        info += " <td>" + p.StartMode + "</td> ";        info += " <td>" + p.StartName + "</td> ";        info += " <td>" + p.State + "</td> ";        info += " <td>" + p.Status + "</td> ";        info += " <td>" + p.SystemCreationClassName + "</td> ";        info += " <td>" + p.SystemName + "</td> ";        info += " <td>" + p.TagId + "</td> ";        info += " <td>" + p.WaitHint + "</td></tr>";        i++;    }    info += "</table>";    return info;}  

代码实现主要包括这几部分：  
        先通过new ActiveXObject ("WbemScripting.SWbemLocator"); 访问到WbemScripting对象。
       通过locator.ConnectServer(".");连接我们本地电脑（.代表本地电脑，当然也可以访问其他计算机）。
      通过service.ExecQuery("SELECT * FROM Win32_Processor")这个类似sql的语句（其实系统信息也是存储在计算中一个类似数据库的文件中）获取我们需要的对象的记录  集。
        通过new Enumerator来创建一个可枚举的对象，下面就可以遍历取信息了。
注意：运行的前提是要修改浏览器安全设置，“允许对未标记为可安全执行的ActiveX脚本的运行”。

这里主要取了CPU、内存及系统用户几个信息，大家利用WMI的API或者借助JSEDIT获取
到更多的信息。下面列出了常用信息的类：

Win32_Processor                       // CPU 处理器

Win32_PhysicalMemory                  // 物理内存

Win32_Keyboard                        // 键盘

Win32_PointingDevice                  // 点输入设备，如鼠标

Win32_DiskDrive                       // 硬盘驱动器

Win32_CDROMDrive                      // 光盘驱动器

Win32_BaseBoard                       // 主板

Win32_BIOS                            // BIOS 芯片

Win32_ParallelPort                    // 并口

Win32_SerialPort                      // 串口

Win32_SoundDevice                      //多媒体设置

Win32_USBController                   // USB 控制器

Win32_NetworkAdapter                  // 网络适配器

Win32_NetworkAdapterConfiguration     // 网络适配器设置

Win32_Printer                         // 打印机

Win32_PrinterConfiguration             //打印机设置

Win32_PrintJob                        // 打印机任务

Win32_TCPIPPrinterPort                // 打印机端口

Win32_POTSModem                       // MODEM

Win32_POTSModemToSerialPort           // MODEM 端口

Win32_DesktopMonitor                  // 显示器

Win32_VideoController                 // 显卡细节。

Win32_VideoSettings                   // 显卡支持的显示模式。

Win32_TimeZone                        // 时区

Win32_SystemDriver                    // 驱动程序

Win32_DiskPartition                   // 磁盘分区

Win32_LogicalDisk                     // 逻辑磁盘

Win32_LogicalMemoryConfiguration      // 逻辑内存配置

Win32_PageFile                        // 系统页文件信息

Win32_PageFileSetting                 // 页文件设置

Win32_BootConfiguration               // 系统启动配置

Win32_OperatingSystem                 // 操作系统信息

Win32_StartupCommand                  // 系统自动启动程序

Win32_Service                         // 系统安装的服务

Win32_Group                           // 系统管理组

Win32_GroupUser                       // 系统组帐号

Win32_UserAccount                     // 用户帐号

Win32_Process                         // 系统进程

Win32_Thread                          // 系统线程

Win32_Share                           // 共享

Win32_NetworkClient                   // 已安装的网络客户端

Win32_NetworkProtocol                 // 已安装的网络协议

WMI Win32类的完整信息及详细列表请参考MSDN:
http://msdn2.microsoft.com/en-us/library/aa394084(VS.85).aspx