需要对用户的 ip 和 mac 地址进行验证这里用到获取客户端ip和mac地址的两个方法留存
获取客户端ip地址( 这个必须从客户端传到后台)
jsp页面下很简单requestgetRemoteAddr() ;
因为系统的VIew层是用JSF来实现的因此页面上没法直接获得类似request在bean里做了个强制转换
Java代码
public String getMyIP() {
try {
FacesContext fc = FacesContextgetCurrentInstance();
HttpServletRequest request = (HttpServletRequest)fcgetExternalContext()getRequest();
return requestgetRemoteAddr();
}
catch (Exception e) {
eprintStackTrace();
}
return ;
}
获取客户端mac地址
调用window的命令在后台Bean里实现 通过ip来获取mac地址方法如下
Java代码
public String getMACAddress(String ip){
String str = ;
String macAddress = ;
try {
Process p = RuntimegetRuntime()exec(nbtstat A + ip);
InputStreamReader ir = new InputStreamReader(pgetInputStream());
LineNumberReader input = new LineNumberReader(ir);
for (int i = ; i < ; i++) {
str = inputreadLine();
if (str != null) {
if (strindexOf(MAC Address) > ) {
macAddress = strsubstring(strindexOf(MAC Address) + strlength());
break;
}
}
}
} catch (IOException e) {
eprintStackTrace(Systemout);
}
return macAddress;
}
完整代码
Java代码
import javaioIOException;
import javaioInputStreamReader;
import javaioLineNumberReader;
public class GetMACAddress {
public String getMACAddress(String ipAddress) {
String str = strMAC = macAddress = ;
try {
Process pp = RuntimegetRuntime()exec(nbtstat a + ipAddress);
InputStreamReader ir = new InputStreamReader(ppgetInputStream());
LineNumberReader input = new LineNumberReader(ir);
for (int i = ; i < ; i++) {
str = inputreadLine();
if (str != null) {
if (strindexOf(MAC Address) > ) {
strMAC = strsubstring(strindexOf(MAC Address) +
strlength());
break;
}
}
}
} catch (IOException ex) {
return Cant Get MAC Address!;
}
//
if (strMAClength() < ) {
return Error!;
}
macAddress = strMACsubstring( ) + : + strMACsubstring( )
+ : + strMACsubstring( ) + : + strMACsubstring( )
+ : + strMACsubstring( ) + :
+ strMACsubstring( );
//
return macAddress;
}
public static void main(String[] args) {
GetMACAddress getMACAddress = new GetMACAddress();
Systemoutprintln(getMACAddressgetMACAddress()); //获得该ip地址的mac地址
}
public static String procAll(String str) {
return procStringEnd(procFirstMac(procAddress(str)));
}
public static String procAddress(String str) {
int indexof = strindexOf(Physical Address);
if (indexof > ) {
return strsubstring(indexof strlength());
}
return str;
}
public static String procFirstMac(String str) {
int indexof = strindexOf(:);
if (indexof > ) {
return strsubstring(indexof + strlength())trim();
}
return str;
}
public static String procStringEnd(String str) {
int indexof = strindexOf(\r);
if (indexof > ) {
return strsubstring( indexof)trim();
}
return str;
}
}
只要写一个servlet来调用这个类的getMACAddress(String netip)方法就可以获得客户端的mac地址了相信你会写jsp应该对servlet也不陌生吧在jsp中调用servlet通过session传递返回的mac地址加以判断就可以了
mac地址是可以通过注册表修改的不建议以此来作为限制依据~
补充
关于获取IP地址的方式最近在linux下有一个教训如果单纯通过InetAddress来获取IP地址就会出现在不同的机器上IP地址不同的问题
InetAddressgetLocalHost()getAddress() 实际上是根据hostname来获取IP地址的linux系统在刚刚装完默认的hostname是localhost所以通过上面代码获取到的本机 ip就是 相对应比如我的hostname就是 返回的ip地址确是的地址暂时采用下面代码来处理当然还不够灵活
public static byte[] getIp() throws UnknownHostException {
byte[] b = InetAddressgetLocalHost()getAddress();
Enumeration allNetInterfaces = null;
try {
allNetInterfaces = NetworkInterfacegetNetworkInterfaces();
} catch (SocketException e) {
eprintStackTrace();
}
InetAddress ip = null;
NetworkInterface netInterface = null;
while (allNetInterfaceshasMoreElements()) {
netInterface = (NetworkInterface) allNetInterfacesnextElement();
if (netInterfacegetName()trim()equals(eth)){
Enumeration addresses = netInterfacegetInetAddresses();
while (addresseshasMoreElements()) {
ip = (InetAddress) addressesnextElement();
}
break;
}
}
if (ip != null && ip instanceof InetAddress) {
return b = ipgetAddress();
}
return b;
}
补充
// 获取真实IP的方法()
public String getIpAddr(HttpServletRequest request) {
String ip = requestgetHeader(xforwardedfor);
if(ip == null || iplength() == || unknownequalsIgnoreCase(ip)) {
ip = requestgetHeader(ProxyClientIP);
}
if(ip == null || iplength() == || unknownequalsIgnoreCase(ip)) {
ip = requestgetHeader(WLProxyClientIP);
}
if(ip == null || iplength() == || unknownequalsIgnoreCase(ip)) {
ip = requestgetRemoteAddr();
}
return ip;
}
