java网络通信基础知识

try {
//获取本机的IP“地址对象”
InetAddress ip = InetAddress.getLocalHost();
// System.out.println(ip);
//获得对应IP的机器名：
System.out.println(ip.getHostName());
//获得对应IP对应IP字符串：
System.out.println(ip.getHostAddress());
System.out.println("-------------------------------");
//通过解析主机名获得IP
InetAddress byName = InetAddress.getByName("DESKTOP-A1IIHRH");//不区分大小写
System.out.println(byName);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}