调用cmd命令行命令（借鉴）
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public class IP_MAC_TypeHelper {
/**
* 控制台执行arp -a命令
*
* @return
*
*/
public static InputStream getInputStream() {
Runtime rt = Runtime.getRuntime();
InputStream in = null;
try {
Process p = rt.exec("cmd.exe /c arp -a");
in = p.getInputStream();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return in;
}
/**
* 获取的字节流转成String
*
* @param in
* @return
*/
public static String read(InputStream in) {
InputStreamReader isr;
try {
isr = new InputStreamReader(in, "GBK");
BufferedReader br = new BufferedReader(isr);
String inline = null;
StringBuffer sb = new StringBuffer();
while ((inline = br.readLine()) != null) {
// System.out.println(inline);
sb.append(inline);
}
return sb.toString();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
/**
* 格式化输出信息
*
* @param msg
* @return
*/
public static String[] getMsg(String msg) {
//按换行截取
String[] tempmessage = msg.split("\\r\\n");
StringBuffer sb = new StringBuffer();
for (String s : tempmessage) {
sb.append(s + " ");
}
String temp = sb.toString();
return temp.split(" {1,}");
}
/**
* 截取IP地址信息
*
* @param msg
* @return
*/
public static List<String> getIp(String[] msg) {
List<String> list = new ArrayList<String>();
for (String s : msg) {
boolean flag = s.matches("^[0-9]{1,3}(\\\\.[0-9]{1,3}){3}$");// 匹配IP的正则
if (flag) {
list.add(s);
}
}
return list;
}
/**
* 截取MAC地址信息
*
* @param msg
* @return
*/
public static List<String> getMac(String[] msg) {
List<String> list = new ArrayList<String>();
String regx = "^[a-zA-Z0-9]{2}(-[a-zA-Z0-9]{2}){5}$"; // 匹配MAC地址的正则
for (String s : msg) {
if (s.matches(regx)) {
list.add(s);
}
}
return list;
}
/**
* 截取类型信息
*
* @param msg
* @return
*/
public static List<String> getType(String[] msg) {
List<String> list = new ArrayList<String>();
for (String s : msg) {
if (s.contains("态")) { // 判断是否为指定字符
list.add(s);
}
}
return list;
}
/**
* 移除本机IP（包含网卡）
* @param ipList
* @return
*/
public static List<String> removeLocalIp(List<String> ipList) {
List<String> ripList = new ArrayList<String>();
try {
Enumeration<NetworkInterface> netInterfaces = NetworkInterface
.getNetworkInterfaces();
while (netInterfaces.hasMoreElements()) {
NetworkInterface nif = netInterfaces.nextElement();
Enumeration<InetAddress> iparray = nif.getInetAddresses();
while (iparray.hasMoreElements()) {
/*
* System.out.println("IP:" +
* iparray.nextElement().getHostAddress());
*/
ripList.add(iparray.nextElement().getHostAddress());
}
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
for (int i = 0; i < ipList.size() - 1; i++) {
for (String rip : ripList) {
if (ipList.get(i).equals(rip)) {
ipList.remove(i);
}
}
}
return ipList;
}
/**
* 获取对应的IP、MAC、类型
* @return
*/
public static List<Admin> getIp_Mac_Type() {
List<Admin> aList = new ArrayList<Admin>();
InputStream in = getInputStream();
String message = read(in);
String[] msg = getMsg(message);
List<String> list_ip = removeLocalIp(getIp(msg));
List<String> list_mac = getMac(msg);
List<String> list_type = getType(msg);
for(int i = 0; i<list_ip.size(); i++){
Admin admin = new Admin();
admin.setIp(list_ip.get(i));
admin.setMac(list_mac.get(i));
admin.setType(list_type.get(i));
aList.add(admin);
}
for(Admin a:aList){
System.out.println(a.getIp());
}
return aList;
}
}
我们知道在cmd命令行窗口中输入arp -a能得到局域网下所有IP，上述代码调用该命令得到所有IP，以上仅为借鉴。有待完善。。。
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