Java Network Programming, 3rd Edition ppt

Java Network Programming, 3rd Edition Table of Contents Copyright Preface About the Third Edition Organization of the Book Who You Are Java Versions About the Examples Convention

Java Network Programming, 3rd Edition

Table of Contents

Copyright

Preface

About the Third Edition

Organization of the Book

Who You Are

Java Versions

About the Examples

Conventions Used in This Book Request for Comments

Comments and Questions

2.6 Internet Standards

Chapter 3 Basic Web Concepts 3.1 URIs

3.2 HTML, SGML, and XML 3.3 HTTP

3.4 MIME Media Types

5.2 Returning Information from

7.1 The URL Class

7.2 The URLEncoder and

8.3 Parsing HTML

Chapter 11 Secure Sockets 11.1 Secure Communications

11.2 Creating Secure Client Sockets

11.3 Methods of the SSLSocket Class

11.4 Creating Secure Server Sockets

Chapter 13 UDP Datagrams and Sockets

13.1 The UDP Protocol

14.3 Two Simple Examples Chapter 15 URLConnections 15.1 Opening URLConnections 15.2 Reading Data from a

16.3 Writing a Protocol Handler 16.4 More Protocol Handler Examples and Techniques

18.1 What Is Remote Method Invocation?

19.3 Receiving Mail

19.4 Password Authentication 19.5 Addresses

19.6 The URLName Class 19.7 The Message Class

19.8 The Part Interface

19.9 Multipart Messages and File Attachments

index_C index_D index_E index_F index_G index_H index_I index_J index_K index_L index_M index_N index_O index_P

index_Q index_R index_S index_T index_U index_V index_W index_X index_Z

Java Network Programming, 3rd Edition

By Elliotte Rusty Harold

Publisher : O'Reilly

Pub Date : October 2004

ISBN : 0-596-00721-3

Pages : 706

Thoroughly revised to cover all the 100+ significant updates to Java Developers Kit (JDK) 1.5,

Java Network Programming is

a complete introduction to

developing network programs (both applets and applications) using Java, covering everything from networking fundamentals

to remote method invocation (RMI) It includes chapters on TCP and UDP sockets,

multicasting protocol and

content handlers, servlets, and the new I/O API This is the essential resource for any

serious Java developer.

Java Network Programming, 3rd Edition

By Elliotte Rusty Harold

Publisher : O'Reilly

Pub Date : October 2004

ISBN : 0-596-00721-3

Pages : 706

Copyright

Preface

About the Third Edition

Organization of the Book

Who You Are

Java Versions

About the Examples

Conventions Used in This Book

Request for Comments

Comments and Questions

Acknowledgments

Chapter 1 Why Networked Java?

Section 1.1 What Can a Network Program

Do?

Section 1.2 Security

Section 1.3 But Wait! There's More! Chapter 2 Basic Network Concepts Section 2.1 Networks

Section 2.2 The Layers of a Network Section 2.3 IP, TCP, and UDP Section 2.4 The Internet

Section 2.5 The Client/Server Model Section 2.6 Internet Standards Chapter 3 Basic Web Concepts

Section 3.1 URIs

Section 3.2 HTML, SGML, and XML Section 3.3 HTTP

Section 3.4 MIME Media Types Section 3.5 Server-Side Programs Chapter 4 Streams

Section 4.1 Output Streams

Section 4.2 Input Streams

Section 4.3 Filter Streams

Section 4.4 Readers and Writers Chapter 5 Threads

Section 5.1 Running Threads

Section 5.2 Returning Information from a

Thread

Section 5.3 Synchronization

Section 5.4 Deadlock

Section 5.5 Thread Scheduling

Section 5.6 Thread Pools

Chapter 6 Looking Up Internet Addresses Section 6.1 The InetAddress Class

Section 6.2 Inet4Address and Inet6Address Section 6.3 The NetworkInterface Class Section 6.4 Some Useful Programs

Chapter 7 URLs and URIs

Section 7.1 The URL Class

Section 7.2 The URLEncoder and

URLDecoder Classes

Section 7.3 The URI Class

Section 7.4 Proxies

Section 7.5 Communicating with

Server-Side Programs Through GET

Section 7.6 Accessing Password-Protected

Chapter 9 Sockets for Clients

Section 9.1 Socket Basics

Section 9.2 Investigating Protocols with

Telnet

Section 9.3 The Socket Class

Section 9.4 Socket Exceptions

Section 9.5 Socket Addresses

Section 9.6 Examples

Chapter 10 Sockets for Servers

Section 10.1 The ServerSocket Class Section 10.2 Some Useful Servers

Chapter 11 Secure Sockets

Section 11.1 Secure Communications Section 11.2 Creating Secure Client Sockets

Section 11.3 Methods of the SSLSocket

Chapter 12 Non-Blocking I/O

Section 12.1 An Example Client

Section 12.2 An Example Server

Section 12.3 Buffers

Section 12.4 Channels

Section 12.5 Readiness Selection

Chapter 13 UDP Datagrams and Sockets Section 13.1 The UDP Protocol

Section 13.2 The DatagramPacket Class Section 13.3 The DatagramSocket Class Section 13.4 Some Useful Applications Section 13.5 DatagramChannel

Chapter 14 Multicast Sockets

Section 14.1 What Is a Multicast Socket?

Section 14.2 Working with Multicast

Section 15.4 Configuring the Connection Section 15.5 Configuring the Client Request

HTTP Header

Section 15.6 Writing Data to a Server Section 15.7 Content Handlers

Section 15.8 The Object Methods

Section 15.9 Security Considerations for

Section 16.1 What Is a Protocol Handler? Section 16.2 The URLStreamHandler Class Section 16.3 Writing a Protocol Handler Section 16.4 More Protocol Handler

Examples and Techniques

Section 16.5 The

URLStreamHandlerFactory Interface Chapter 17 Content Handlers

Section 17.1 What Is a Content Handler? Section 17.2 The ContentHandler Class Section 17.3 The ContentHandlerFactory

Interface

Section 17.4 A Content Handler for the

FITS Image Format

Chapter 18 Remote Method Invocation Section 18.1 What Is Remote Method

Invocation?

Section 18.2 Implementation

Section 18.3 Loading Classes at Runtime Section 18.4 The java.rmi Package

Section 18.5 The java.rmi.registry Package Section 18.6 The java.rmi.server Package Chapter 19 The JavaMail API

Section 19.1 What Is the JavaMail API? Section 19.2 Sending Email

Section 19.3 Receiving Mail

Section 19.4 Password Authentication Section 19.5 Addresses

Section 19.6 The URLName Class

Section 19.7 The Message Class

Section 19.8 The Part Interface

Section 19.9 Multipart Messages and File

Copyright © 2005, 2000, 1997 O'ReillyMedia, Inc All rights reserved.

Printed in the United States of America

Published by O'Reilly Media, Inc., 1005Gravenstein Highway North, Sebastopol,

Nutshell Handbook, the Nutshell

Handbook logo, and the O'Reilly logo areregistered trademarks of O'Reilly Media,Inc Java™ Network Programming, ThirdEdition, the image of a river otter, andrelated trade dress are trademarks ofO'Reilly Media, Inc

Java™ and all Java-based trademarks andlogos are trademarks or registered

trademarks of Sun Microsystems, Inc., inthe United States and other countries.O'Reilly Media, Inc is independent of SunMicrosystems

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Where those designations appear in thisbook, and O'Reilly Media, Inc was aware

of a trademark claim, the designationshave been printed in caps or initial caps

While every precaution has been taken inthe preparation of this book, the publisherand author assume no responsibility forerrors or omissions, or for damages

resulting from the use of the informationcontained herein

Java's growth over the last 10 years hasbeen nothing short of phenomenal GivenJava's rapid rise to prominence and theeven more spectacular growth of the

Internet, it's a little surprising that networkprogramming in Java is still so mysterious

to so many It doesn't have to be In fact,writing network programs in Java is quitesimple, as this book will show Readerswith previous experience in networkprogramming in a Unix, Windows, orMacintosh environment should be

pleasantly surprised at how much easier it

is to write equivalent programs in Java.The Java core API includes well-designed

interfaces to most network features.

Indeed, there is very little layer network software you can write in C

application-or C++ that you can't write mapplication-ore easily in

Java Java Network Programming, 3rd

Edition endeavors to show you how to

take advantage of Java's network classlibrary to quickly and easily write

programs that accomplish many commonnetworking tasks Some of these include:

Browsing the Web with HTTP

Parsing and rendering HTML

Sending email with SMTP

Receiving email with POP and IMAP

Writing multithreaded servers

Installing new protocol and contenthandlers into browsers

Encrypting communications for

confidentiality, authentication, andguaranteed message integrity

Designing GUI clients for networkservices

Posting data to server-side programs

Looking up hosts using DNS

Downloading files with anonymousFTP

Connecting sockets for low-levelnetwork communication

Distributing applications acrossmultiple systems with Remote

Method Invocation

Java is the first language to provide such apowerful cross-platform network library,which handles all these diverse tasks

Java Network Programming exposes the

power and sophistication of this library.This book's goal is to enable you to startusing Java as a platform for serious

network programming To do so, this book

provides a general background in networkfundamentals, as well as detailed

discussions of Java's facilities for writingnetwork programs You'll learn how towrite Java programs that share data acrossthe Internet for games, collaboration,software updates, file transfer, and more.You'll also get a behind-the-scenes look atHTTP, SMTP, TCP/IP, and the otherprotocols that support the Internet and theWeb When you finish this book, you'llhave the knowledge and the tools to createthe next generation of software that takesfull advantage of the Internet

About the Third Edition

In 1996, in the first chapter of the firstedition of this book, I wrote extensivelyabout the sort of dynamic, distributednetwork applications I thought Java wouldmake possible One of the most excitingparts of writing subsequent editions hasbeen seeing virtually all of the

applications I foretold come to pass.Programmers are using Java to querydatabase servers, monitor web pages,control telescopes, manage multiplayergames, and more, all by using Java's

native ability to access the Internet Java

in general and network programming inJava in particular has moved well beyondthe hype stage and into the realm of real,

working applications Not all networksoftware is yet written in Java, but it's notfor a lack of trying Efforts are well underway to subvert the existing infrastructure

of C-based network clients and serverswith pure Java replacements Clients fornewer protocols like Gnutella and Freenetare preferentially written in Java It'sunlikely that Java will replace C for allnetwork programming in the near future.However, the mere fact that many peopleare willing to use web browsers, webservers, and more written in Java showsjust how far we've come since 1996

This book has come a long way, too Thethird edition has one completely newchapter to describe the most significant

development in network programmingsince readers and writers were introduced

in Java 1.1 I refer of course to the newI/O APIs in the java.nio package Theability to perform asynchronous, non-blocking I/O operations is critical forhigh-performance network applications,especially servers It removes one of thelast barriers to using Java for networkservers Many other chapters have beenupdated to take advantage of these newI/O APIs

There've been lots of other small changesand updates throughout the java.net andsupporting packages in Java 1.4 and 1.5,and these are covered here as well Newclasses addressed in this edition include

CookieHandler, SocketAddress, Proxy,NetworkInterface, and URI IPv6 hasbecome a reality, and is now coveredextensively Many other methods havebeen added to existing classes in the lasttwo releases of Java, and these are

discussed in the relevant chapters I'vealso rewritten large parts of the book toreflect changing fashions in Java

programming in general and networkprogramming in particular Applets andCGI programs are emphasized much less

In their place, you'll find more genericdiscussion of remote code execution andserver-side environments, however

implemented

Of course, the text has been cleaned up,

too There's only one completely newchapter here, but the 18 existing chaptershave been extensively rewritten and

expanded to bring them up-to-date withnew developments as well as to makethem clearer and more engaging I hopeyou'll find this third edition an even

stronger, longer-lived, more accurate, andmore enjoyable tutorial and reference tonetwork programming in Java than the lastedition

Organization of the Book

This book begins with three chapters thatoutline how networks and network

programs work Chapter 1, is a gentleintroduction to network programming inJava and the applications it makes

possible All readers should find

something of interest in this chapter Itexplores some of the unique programs thatbecome feasible when networking iscombined with Java Chapter 2, and

Chapter 3, explain in detail what a

programmer needs to know about how theInternet and the Web work Chapter 2

describes the protocols that underlie theInternet, such as TCP/IP and UDP/IP

Chapter 3 describes the standards that

underlie the Web, such as HTTP, HTML,and REST If you've done a lot of networkprogramming in other languages on otherplatforms, you may be able to skip thesetwo chapters.

The next two chapters throw some light ontwo parts of Java programming that arecritical to almost all network programsbut are often misunderstood and misused,I/O and threading Chapter 4, exploresJava's classic I/O models which, despitethe new I/O APIs, aren't going away anytime soon and are still the preferred means

of handling input and output in most clientapplications Understanding how Javahandles I/O in the general case is a

prerequisite for understanding the special

case of how Java handles network I/O.

Chapter 5, explores multithreading andsynchronization, with a special emphasis

on how they can be used for asynchronousI/O and network servers ExperiencedJava programmers may be able to skim orskip these two chapters However,

Chapter 6, is essential reading for

everyone It shows how Java programsinteract with the domain name systemthrough the InetAddress class, the oneclass that's needed by essentially allnetwork programs Once you've finishedthis chapter, it's possible to jump around

in the book as your interests and needsdictate There are, however, some

interdependencies between specific

chapters Figure P-1 should allow you to