1. 通過IP獲取機器名 or 通過機器名獲取ip

    host ：主機       hostAddress ：ip       hostName：機器名

import java.net.InetAddress;
import java.net.UnknownHostException;

public class Test01 {
    public static void main(String[] args) throws UnknownHostException {  
        InetAddress addr=null;  
        String ip="";  
        String address="";  
        try{  
            // cp01-fengchao-public-7.epc.baidu.com|10.95.130.73
            addr = InetAddress.getByName("cp01-fengchao-public-7.epc.baidu.com");
            ip = addr.getHostAddress().toString(); //獲得機器IP　　  
            address = addr.getHostName().toString(); //獲得機器名稱  
            System.out.println(ip + "|" + address);
        }catch(Exception e){  
            e.printStackTrace();  
        }  
    }    
}
 

import java.net.InetAddress;
import java.net.UnknownHostException;

public class Test01 {
    public static void main(String[] args) throws UnknownHostException {  
        InetAddress addr=null;  
        String ip="";  
        String address="";  
        try{  
            // cp01-fengchao-public-7.epc.baidu.com|10.95.130.73
//            addr = InetAddress.getByName("cp01-fengchao-public-7.epc.baidu.com");
            addr = InetAddress.getLocalHost();
            ip = addr.getHostAddress().toString(); //獲得機器IP　　  
            address = addr.getHostName().toString(); //獲得機器名稱  
            System.out.println(ip + "|" + address);
        }catch(Exception e){  
            e.printStackTrace();  
        }  
    }    
}