JAVA认证：获取客户端ipmac地址完整代码详解
1.获取客户端ip地址( 这个必需年夜客户端传到后台)： jsp页面下，很简单，request.getRemoteAddr() ;因为系统的VIew层是用JSF来实现的，是以页面膳缦慊法直接获得近似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 "";
}
(测试经由过程)
2.获取客户端mac地址
挪用window的呼吁，在后台Bean诚恳现 经由过程ip来获取mac地址。体例如下：
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;
}
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