最近做一个安全系统,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。
1.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,request.getRemoteAddr() ;
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
public String getMyIP() {
try {
FacesContext fc = FacesContext.getCurrentInstance();
HttpServletRequest request = (HttpServletRequest)fc.getExternalContext().getRequest();
return request.getRemoteAddr();
}
catch (Exception e) {
e.printStackTrace();
}
return "";
}
2.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:
public String getMACAddress(String ip){
String str = "";
String macAddress = "";
try {
Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);
InputStreamReader ir = new InputStreamReader(p.getInputStream());
LineNumberReader input = new LineNumberReader(ir);
for (int i = 1; i < 100; i++) {
str = input.readLine();
if (str != null) {
if (str.indexOf("MAC Address") > 1) {
macAddress = str.substring(str.indexOf("MAC Address") + 14, str.length());
break;
}
}
}
} catch (IOException e) {
e.printStackTrace(System.out);
}
return macAddress;
}