Java Network programming

InetAddress

　　InetAddress is used to represent an IP address, and a inetaddress represents an IP address

How to create an InetAddress object, Getbyname (String host), can be an IP, or it can be a domain name

GetHostName (): Gets the domain name corresponding to the IP address

Gethostaddress (): Get IP Address

InetAddress byname = Inetaddress.getbyname ("www.baidu.com"); // Establish an IP address        String hostName = Byname.gethostname (); // get the domain name        of the IP address String address = byname.gethostaddress (); // Get IP Address         System.out.println (hostName);        SYSTEM.OUT.PRINTLN (address);

Socket

　　Using sockets to develop Web applications has long been widely adopted as a de facto standard.

A socket on both ends of the communication is the endpoint of the communication between the two computers.

Network communication is actually the communication between sockets

The socket allows the program to treat the network connection as a stream, and the data is transmitted via IO between two sockets.

Java Network programming