A Short Java Socket Tutorial Albert Guo [email_address]

Agenda Java Socket Interactive Socket Server Lifecycle Lifecycle of a multithreaded socket server Use Case Diagram Class Diagram Socket Server Operations WeatherSocketServer.java Socket Client Operation Socket Server Demo Socket Clients Demo

Java Socket

Interactive Socket Server Lifecycle

Lifecycle of a multithreaded socket server

Use Case Diagram

Class Diagram

Socket Server Operations

WeatherSocketServer.java

Socket Client Operation

Socket Server Demo

Socket Clients Demo

Java Socket A socket is a communication end point Is a network programming interface Is used by a process to communicate with a remote system via a transport protocol. Needs an IP address and a port number Sockets are popularly used in client/server computing Provides two major types of services: Connection-oriented Connectionless

A socket is a communication end point

Is a network programming interface

Is used by a process to communicate with a remote system via a transport protocol.

Needs an IP address and a port number

Sockets are popularly used in client/server computing

Provides two major types of services:

Connection-oriented

Connectionless

Java Socket – cont. Java supports client/server computing using sockets. Java supports both connection-oriented and connectionless services. Java uses Socket for clients and ServerSocket for servers in a connection-oriented environment. Java uses DatagramSocket/DatagramPacket for connectionless services.

Java supports client/server computing using sockets.

Java supports both connection-oriented and connectionless services.

Java uses Socket for clients and ServerSocket for servers in a connection-oriented environment.

Java uses DatagramSocket/DatagramPacket for connectionless services.

Interactive Socket Server Lifecycle

Lifecycle of a multithreaded socket server

Use Case Diagram

Class Diagram

Socket Server Operations

WeatherSocketServer.java

WeatherSocketServer.java

Socket Client Operation

Socket Client

Socket Server Demo Client1’s request Client2’s request

Socket Clients Demo Client1 request for Taipei’s weather condition Client1 request for TaoYuan’s weather condition