JavaScript获取客户端计算机硬件及系统等信息的方法

JavaScript 获取客户端计算机硬件及系统信息
通过WMI来实现获取客户端计算机硬件及系统信息:

function getSysInfo(){ 
var locator = new ActiveXObject ("WbemScripting.SWbemLocator"); 
var service = locator.ConnectServer("."); 
//CPU信息 
var cpu = new Enumerator (service.ExecQuery("SELECT * FROM Win32_Processor")).item(); 
var cpuType=cpu.Name,hostName=cpu.SystemName; 
//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} 
//系统信息 
var system=new Enumerator (service.ExecQuery("SELECT * FROM Win32_ComputerSystem")).item(); 
var physicMenCap=Math.ceil(system.TotalPhysicalMemory/1024/1024),curUser=system.UserName,cpuCount=system.NumberOfProcessors 

return {cpuType:cpuType,cpuCount:cpuCount,hostName:hostName,curUser:curUser,memCap:physicMenCap,mem:mem} 
}

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

示例：

function button1_onclick() {//cpu 信息 
var locator = new ActiveXObject ("WbemScripting.SWbemLocator"); 
var service = locator.ConnectServer("."); 
var properties = service.ExecQuery("SELECT * FROM Win32_Processor"); 
var e = new Enumerator (properties); 
document.write("

"); for (;!e.atEnd();e.moveNext ()) { var p = e.item (); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); } document.write("

" + p.Caption + "

" + p.DeviceID + "

" + p.Name + "

" + p.CpuStatus + "

" + p.Availability + "

" + p.Level + "

" + p.ProcessorID + "

" + p.SystemName + "

" + p.ProcessorType + "

"); } function Button2_onclick() {//CD-ROM 信息 var locator = new ActiveXObject ("WbemScripting.SWbemLocator"); var service = locator.ConnectServer("."); var properties = service.ExecQuery("SELECT * FROM Win32_CDROMDrive"); var e = new Enumerator (properties); document.write(""); for (;!e.atEnd();e.moveNext ()) { var p = e.item (); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); } document.write("

" + p.Caption + "

" + p.Description + "

" + p.Drive + "

" + p.Status + "

" + p.MediaLoaded + "

"); } function Button3_onclick() {//键盘信息 var locator = new ActiveXObject ("WbemScripting.SWbemLocator"); var service = locator.ConnectServer("."); var properties = service.ExecQuery("SELECT * FROM Win32_Keyboard"); var e = new Enumerator (properties); document.write(""); for (;!e.atEnd();e.moveNext ()) { var p = e.item (); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); } document.write("

" + p.Description + "

" + p.Name + "

" + p.Status + "

"); } function Button4_onclick() {//主板信息 var locator = new ActiveXObject ("WbemScripting.SWbemLocator"); var service = locator.ConnectServer("."); var properties = service.ExecQuery("SELECT * FROM Win32_BaseBoard"); var e = new Enumerator (properties); document.write(""); for (;!e.atEnd();e.moveNext ()) { var p = e.item (); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); } document.write("

" + p.HostingBoard + "

" + p.Manufacturer + "

" + p.PoweredOn + "

" + p.Product + "

" + p.SerialNumber + "

" + p.Version + "

"); }

另外，通过以下方式也可以获得系统的相关信息：

其实最关键的还是用到两个ActiveX： 
 
 
不过这两个ActiveX都是系统自带，不用去下载或注册。 
接下来的工作就是用脚本和ActiveX交互 

 
 
 
 
 
TEST 
 
 

class Win32_NetworkAdapterConfiguration : CIM_Setting 
{ 
boolean ArpAlwaysSourceRoute; 
boolean ArpUseEtherSNAP; 
string Caption; 
string DatabasePath; 
boolean DeadGWDetectEnabled; 
string DefaultIPGateway[]; 
uint8 DefaultTOS; 
uint8 DefaultTTL; 
string Description; 
boolean DHCPEnabled; 
datetime DHCPLeaseExpires; 
datetime DHCPLeaseObtained; 
string DHCPServer; 
string DNSDomain; 
string DNSDomainSuffixSearchOrder[]; 
boolean DNSEnabledForWINSResolution; 
string DNSHostName; 
string DNSServerSearchOrder[]; 
boolean DomainDNSRegistrationEnabled; 
uint32 ForwardBufferMemory; 
boolean FullDNSRegistrationEnabled; 
uint16 GatewayCostMetric[]; 
uint8 IGMPLevel; 
uint32 Index; 
uint32 InterfaceIndex; 
string IPAddress[]; 
uint32 IPConnectionMetric; 
boolean IPEnabled; 
boolean IPFilterSecurityEnabled; 
boolean IPPortSecurityEnabled; 
string IPSecPermitIPProtocols[]; 
string IPSecPermitTCPPorts[]; 
string IPSecPermitUDPPorts[]; 
string IPSubnet[]; 
boolean IPUseZeroBroadcast; 
string IPXAddress; 
boolean IPXEnabled; 
uint32 IPXFrameType[]; 
uint32 IPXMediaType; 
string IPXNetworkNumber[]; 
string IPXVirtualNetNumber; 
uint32 KeepAliveInterval; 
uint32 KeepAliveTime; 
string MACAddress; 
uint32 MTU; 
uint32 NumForwardPackets; 
boolean PMTUBHDetectEnabled; 
boolean PMTUDiscoveryEnabled; 
string ServiceName; 
string SettingID; 
uint32 TcpipNetbiosOptions; 
uint32 TcpMaxConnectRetransmissions; 
uint32 TcpMaxDataRetransmissions; 
uint32 TcpNumConnections; 
boolean TcpUseRFC1122UrgentPointer; 
uint16 TcpWindowSize; 
boolean WINSEnableLMHostsLookup; 
string WINSHostLookupFile; 
string WINSPrimaryServer; 
string WINSScopeID; 
string WINSSecondaryServer; 
};