在JDK中,IP地址用什么类来表示

在JDK中,IP地址用什么类来表示

InetAddress
它有好几个静态方法可以获得IP地址，主机名之类的。
具体的可以参考API。
下面是我以前写的一个测试IP的类。

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



public class Test {

public static void main(String[]args){
InetAddress localHost = null;

try{
localHost = InetAddress.getLocalHost();
}
catch(UnknownHostException e){

}

String localHostName = localHost.getHostName();

System.out.println("本地主机名为: " + localHostName);

byte[] byteAddress = localHost.getAddress(); //本地主机IP地址的字节表示

int[] intArr = new int[byteAddress.length];
for(int i=0;i<byteAddress.length;i++){
//intArr[i] = (byteAddress[i]<<24)>>>24;
intArr[i] = byteAddress[i] & 0xFF;
}

for(int i=0;i<byteAddress.length;i++){
if(i==byteAddress.length-1){
System.out.println(intArr[i]);
break;
}
System.out.print(intArr[i] + ".");
}

InetAddress address1 = null;
try {
address1 = InetAddress.getByName("172.25.67.65");
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(address1.getHostName());

}

}