Java Host Name Get getHostname()

Description

get Hostname

License

Open Source License

Declaration

public static String getHostname() throws IOException, InterruptedException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.net.UnknownHostException;

public class Main {
    public static String getHostname() throws IOException, InterruptedException {
        String hostname = null;//  ww w .  jav a  2 s . c  o  m
        try {
            hostname = getHostnameFromInetAddress();
        } catch (UnknownHostException unhe) {
            hostname = getHostnameFromCommand();
        }
        return hostname;
    }

    public static String getHostnameFromInetAddress() throws UnknownHostException {
        String hostname = null;
        InetAddress addr = InetAddress.getLocalHost();
        hostname = addr.getHostName();
        return hostname;
    }

    public static String getHostnameFromCommand() throws InterruptedException, IOException {
        String hostname = null;
        String command = "hostname";
        Process process = Runtime.getRuntime().exec(command);
        BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));

        String line = null;
        StringBuilder sb = new StringBuilder();
        while ((line = input.readLine()) != null) {
            sb.append(line);
        }
        hostname = sb.toString();
        process.waitFor();
        return hostname;
    }
}

Related

1. getHostName()
2. getHostname()
3. getHostname()
4. getHostname()
5. getHostName()
6. getHostname()
7. getHostName()
8. getHostName()
9. getHostName()