做过的进：JAVA怎么取客户端的网卡号

Question

JAVA怎么取客户端的网卡号

Answer 1

public void getmac(){
try{
String cmd = "ipconfig -all";
Process process = Runtime.getRuntime().exec(cmd);
BufferedReader buffreader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line = buffreader.readLine();
for (;line != null;){
String nextline = buffreader.readLine();
if(line.indexOf("Physical Address") > 0){
int i = line.indexOf("Physical Address") + 36;
dplocalmac.setText(line.substring(i));
break;
}
line = nextline;
}
buffreader.close();
process.waitFor();
}
catch(Exception exception){
dplocalmac.setText("error");
}
}

Answer 2

你需求没有说明白，如果是java无法控制的硬件，就需要借助c等可以操作底层的东西来实现，java可以用jni和dll交互，也可以用socket，soap等方式！

Answer 3

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;/**
 * Net Util .
 * 
 * @author waterborn
 */
public class MACUtil {    /**
     * Return Opertaion System Name;
     * 
     * @return os name.
     */
    public static String getOsName() {
        String os = "";
        os = System.getProperty("os.name");
        return os;
    }    /**
     * Returns the MAC address of the computer.
     * 
     * @return the MAC address
     */
    public static String getMACAddress() {
        String address = "";
        String os = getOsName();
        if (os.startsWith("Windows")) {
            try {
                String command = "cmd.exe /c ipconfig /all";
                Process p = Runtime.getRuntime().exec(command);
                BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                String line;
                while ((line = br.readLine()) != null) {
                    if (line.indexOf("Physical Address") > 0) {
                        int index = line.indexOf(":");
                        index += 2;
                        address = line.substring(index);
                        break;
                    }
                }
                br.close();
                return address.trim();
            } catch (IOException e) {
            }
        } else if (os.startsWith("Linux")) {
            String command = "/bin/sh -c ifconfig -a";
            Process p;
            try {
                p = Runtime.getRuntime().exec(command);
                BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                String line;
                while ((line = br.readLine()) != null) {
                    if (line.indexOf("HWaddr") > 0) {
                        int index = line.indexOf("HWaddr") + "HWaddr".length();
                        address = line.substring(index);
                        break;
                    }
                }
                br.close();
            } catch (IOException e) {
            }
        }
        address = address.trim();
        return address;
    }
    /**
     * Main Class.
     * 
     * @param args
     */
    public static void main(String[] args) {
        System.out.println("Operation System=" + getOsName());
        System.out.println("Mac Address=" + getMACAddress());
    }
}

Answer 4

xiachedan(瞎扯蛋)    那c怎么取