通信----InetAddress类

InetAddress是用于管理IP的类、没有构造器

1.单例模式

2.根据静态的方法来返回该对象

		//获取本机名+本机地址
		InetAddress localHost=InetAddress.getLocalHost();
		String hostName = localHost.getHostName();
		String hostAddress = localHost.getHostAddress();
		
		System.out.println("----------localHost:"+localHost);
		System.out.println("主机名:"+hostName);
		System.out.println("主机地址:"+hostAddress);

结果：

		//获取远程ip
		InetAddress bdIp=InetAddress.getByName("www.baidu.com");
		String bdhostName=bdIp.getHostName();
		String bdHostAddress=bdIp.getHostAddress();
		System.out.println("主机名:"+bdhostName);
		System.out.println("主机地址:"+bdHostAddress);
		
		System.out.println("==========================================");
		InetAddress bdIp2=InetAddress.getByName("14.215.177.38");
		String bd2hostName=bdIp2.getHostName();
		String bd2HostAddress=bdIp2.getHostAddress();
		System.out.println("主机名:"+bd2hostName);
		System.out.println("主机地址:"+bd2HostAddress);

结果：

最后一个是主机名与主机地址设置成一样所致的