InetAddress获取IP地址，以及Socket实现服务端与客户端最简单的交互

获取IP地址

InetAddress获取ip地址
import java.net.InetAddress;
import java.net.UnknownHostException;

public class TestInetAddress {
   
   

	public static void main(String[] args) {
   
   

		try {
   
   
			// 获取本地的IP对象
			InetAddress ia = InetAddress.getLocalHost();
			// 获取主机名
			System.out.println("主机名" + ia.getHostName());
			// 获取主机地址
			System.out.println("主机地址" + ia.getHostAddress());

		} catch (Exception e) {
   
   
		}
        
		try {
   
   
			// 获取一个远程主机的地址
			InetAddress ia1 = InetAddress.getByName("www.baidu.com");

			System.out.println("主机名" + ia1.getHostName());
			System.out.println("主机地址" +