A Short Java Socket Tutorial

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A Short Java Socket
Tutorial
Albert Guo
[email protected]

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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

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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

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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.

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Interactive Socket Server Lifecycle

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Lifecycle of a multithreaded socket
server

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Use Case Diagram

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Class Diagram

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Socket Server Operations

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WeatherSocketServer.java

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WeatherSocketServer.java

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Socket Client Operation

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Socket Client

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Socket Server Demo
Client1’s request
Client2’s request

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