Java獲取本機的IP和主機名

//獲取本機的IP地址
public String getLocalHostIp()throws Exception{
		InetAddress addr = InetAddress.getLocalHost();  
        String ip=addr.getHostAddress().toString();
        return ip;
}
//獲取本機的主機名
public String getLocalHostName()throws Exception{
		InetAddress addr = InetAddress.getLocalHost();  
        String name=addr.getHostName().toString();
        return name;
}