Learning Network Programming with Java电子书

Learning Network Programming with Java

Table of Contents

Learning Network Programming with Java

Credits

About the Author

About the Reviewer

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Free access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Downloading the color images of this book

Errata

Piracy

Questions

1. Getting Started with Network Programming

Network addressing using the InetAddress class

NIO support

Using the URLConnection class

Using the URLConnection class with buffers and channels

The client/server architecture

Creating a simple echo server

Creating a simple echo client

Using Java 8 to support the echo server and client

UDP and multicasting

Creating a multicast server

Creating the multicast client

Scalability

Creating a threaded server

Using the threaded server

Security

Creating a SSL server

Creating an SSL client

Generating secure keys

Summary

2. Network Addressing

Networking basics

Understanding network basics

Network architectures and protocols

Using the NetworkInterface class

Getting a MAC address

Getting a specific MAC address

Getting multiple MAC addresses

Network addressing concepts

URL/URI/URN

Using the URI class

Creating URI instances

Splitting apart a URI

Using the URL class

Creating URL instances

Splitting apart a URL

IP addresses and the InetAddress class

Obtaining information about an address

Address scoping issues

Testing reachability

Introducing the Inet4Address

Private addresses in IPv4

IPv4 address types

The Inet4Address class

Special IPv4 addresses

Introducing the Inet6Address class

Private addresses in IPv6

The Inet6Address class

Special IPv6 addresses

Testing for the IP address type

Using IPv4-compatible IPv6 addresses

Controlling network properties

Summary

3. NIO Support for Networking

Java NIO

Introduction to buffers

Using channels with a time server

Creating a time server

Creating a time client

The chat server/client applications

The chat server

The chat client

Server/client interaction

The HelperMethods class

Handling variable length messages

Running the chat server/client application

Handling multiple clients

The parts server

The parts client handler

The parts client

Running the parts client/server

Asynchronous socket channels

Creating the asynchronous server socket channel server

Creating the asynchronous socket channel client

Other buffer operations

Bulk data transfer

Using a view

Using read-only buffers

Controlling socket options

Summary

4. Client/Server Development

The HTTP protocol structure

The nature of HTTP messages

Initial request line format

Header lines

Message body

Client/Server interaction example

Java socket support for HTTP client/server applications

Building a simple HTTP server

Building a simple HTTP client

Client/server development using standard Java classes

Using the HttpURLConnection class

URL encoding

Using the HTTPServer class

Implementing a simple HTTPServer class

Managing response headers

Open source Java HTTP servers

Server configuration

Handling cookies

Summary

5. Peer-to-Peer Networks

P2P functions/characteristics

Applications-based P2P networks

Java support for P2P applications

Distributed hash tables

DHT components

DHT implementations

Using JDHT

Using FreePastry

The FreePastry demonstration

Understanding the FreePastryExample class

Understanding the FreePastryApplication class

Sending a message to a specific node

Summary

6. UDP and Multicasting

Java support for UDP

TCP versus UDP

UDP client/server

The UDP server application

The UDP client application

The UDP client/server in action

Channel support for UDP

The UDP echo server application

The UDP echo client application

The UDP echo client/server in action

UDP multicasting

The UDP multicast server

The UDP multicast client

The UDP multicast client/server in action

UDP multicasting with channels

The UDP channel multicast server

The UDP channel multicast client

The UDP channel multicast client/server in action

UDP streaming

The UDP audio server implementation

The UDP audio client implementation

Summary

7. Network Scalability

Multithreaded server overview

The thread-per-request approach

The thread-per-request server

The thread-per-request client

The thread-per-request applications in action

Thread-per-connection approach

The thread-per-connection server

The thread-per-connection client

The thread-per-connection applications in action

Thread pools

The ThreadPoolExecutor class characteristics

Simple thread pool server

Simple thread pool client

The thread pool client/server in action

Thread pool with Callable

Using a Callable

Using a Future

Using the HttpServer executor

Using a selector

Creating the selector

Registering a channel

Using the selector to support a time client/server

The channel time server

The date and time client application

The date and time server/client in action

Handling network timeouts

Summary

8. Network Security

Security

Secure communication terminology

Encryption basics

Symmetric encryption techniques

Generating a key

Encrypting text using a symmetric key

Decrypting text

Asymmetric encryption techniques

Generating and saving asymmetric keys

Encrypting/decrypting text using an asymmetric key

Saving asymmetric keys to a file

Creating a keystore

Creating and maintaining a keystore with keytool

Keytool command-line arguments

Creating and maintaining a keystore with Java

Symmetric encryption client/server

Symmetric server application

Symmetric client application

Symmetric client/server in action

Asymmetric encryption client/server

Asymmetric server application

Asymmetric client application

Asymmetric client/server in action

TLS/SSL

SSL server

SSL client

SSL client/server in action

Secure hash functions

Summary

9. Network Interoperability

Byte order in Java

Interfacing with other languages

Interfacing with JVM based languages

Interfacing with non-JVM languages

Communication through simple sockets

The Java server

The C# client

The client/server in action

Interoperability through middleware

Creating a RESTful service

Testing the RESTful service

Creating a RESTful client

Summary

Index