Java蓝牙应用开发详解

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"Java蓝牙开发英文版" 这本书，"Bluetooth for Java"，由Bruce Hopkins和Ranjith Antony合著，详细介绍了如何在Java环境中开发基于蓝牙的无线应用程序。书中的内容涵盖了多个平台，提供了关于Java蓝牙API的概述、蓝牙服务的开发、安全问题的重点讨论，以及更多相关主题。在“Introduction”中，作者可能首先引入了蓝牙技术的基本概念，解释了它在无线通信中的作用和重要性，以及为什么选择Java作为开发蓝牙应用的语言。 "Chapter 1 - Introducing Bluetooth"深入介绍了蓝牙1.1版本，包括其技术规格、工作原理、以及与其他无线技术的区别。读者可以了解到蓝牙的核心特性，如短距离无线连接、自组织网络（Ad-hoc）以及功耗管理等。 "Chapter 2 - Bluetooth 1.1"可能详细阐述了蓝牙1.1版本的具体改进和增强，例如错误纠正机制、数据传输速率提升，以及对设备兼容性的改善。 "Chapter 3 - Before You Get Started"是入门指导，包含了开始蓝牙开发前的准备工作，可能包括硬件需求、软件环境的设置，以及必要的开发工具。 "Chapter 4 - Understanding the Java Bluetooth API"是关键章节，详细解析了javax.bluetooth包下的各种类和接口，帮助开发者理解如何利用这些API进行设备发现、连接、数据交换等操作。 "Chapter 5 - Bluetooth with J2ME MIDP"专注于Java 2 Micro Edition (J2ME) 中的Mobile Information Device Profile (MIDP)，讨论了如何在移动设备上实现蓝牙功能。 "Chapter 6 - Creating a Bluetooth Print Server with JPSAPI"指导读者创建一个基于蓝牙的打印服务器，使用JPSAPI（Java Print Service API），这可能是通过OBEX（Object Exchange）协议实现的。 "Chapter 7 - Java and OBEX"详细讲述了Java与OBEX的集成，OBEX通常用于文件和对象的交换，对于蓝牙应用的文件传输功能至关重要。 "Chapter 8 - Using a Bluetooth Simulator"探讨了蓝牙模拟器的使用，这对于在没有实际蓝牙设备的情况下进行开发和测试非常有用。 "Chapter 9 - Bluetooth Security"涵盖了蓝牙的安全性问题，如认证、加密和防止未授权访问，这对于开发安全的应用至关重要。 "Chapter 10 - Wireless Embedded Systems with the MicroBlue Target"可能涉及了在嵌入式系统中使用蓝牙，特别是通过MicroBlue目标实现的无线系统。 "Chapter 11 - Enterprise Bluetooth Applications with the Ericsson BlipNet"讨论了企业级应用，可能涉及到Ericsson的BlipNet平台，提供蓝牙在企业环境中的解决方案。 "Chapter 12 - Bluetooth and Jini"将蓝牙技术与Jini服务架构结合，展示了如何构建可扩展和动态的服务网络。附录部分（A至D）提供了关于特定API的参考，包括javax.bluetooth、javax.obex，以及在PalmOS平台上开发Java蓝牙应用的指南，以及BlipNet 1.1 API的详细信息。此外，书中还包含了一个索引、图形列表、表格列表、代码清单以及侧边栏讨论，为读者提供了方便的查找和学习资源。 "Bluetooth for Java"是一本全面的指南，适合希望在Java环境中利用蓝牙技术进行开发的程序员和工程师。

Bluetooth for Java

by Bruce Hopkins and Ranjith Antony

ISBN:1590590783

Apress

(352 pages)

The authors of this text describe how to develop wireless Java

applications using Bluetooth for a variety of platforms. This

includes an API overview of the Java library, development of

Bluetooth-based services, highlights of security concerns, and

more.

Table of Contents

Bluetooth for Java

Introduction

Chapter 1

Introducing Bluetooth

Chapter 2

Bluetooth 1.1

Chapter 3

Before You Get Started

Chapter 4

Understanding the Java Bluetooth API

Chapter 5

Bluetooth with J2ME MIDP

Chapter 6

Creating a Bluetooth Print Server with JPS API

Chapter 7

Java and OBEX

Chapter 8

Using a Bluetooth Simulator

Chapter 9

Bluetooth Security

Chapter 10

Wireless Embedded Systems with the Micro BlueTarget

Chapter 11

Enterprise Bluetooth Applications with the Ericsson BlipNet

Chapter 12

Bluetooth and Jini

Appendix A

javax.bluetooth

Appendix B

javax.obex

Appendix C

Java Bluetooth Development on the PalmOS Platform

Appendix D

BlipNet 1.1 API

Index

List of Figures

List of Tables

List of Listings

List of Sidebars

Devices of the Future

So, what kind of devices, applications, or innovations can we expect to see in the future that involve

Bluetooth? Well, here are just a few that we can think of:

Bluetooth locator system

Personalized family car

The new arcade: a restaurant lobby

The following sections describe these in more detail.

Bluetooth Locator System

Let's start off with a Bluetooth-enabled home, which means that wherever you go in your home, you are

within range of the wireless network. With a Bluetooth-enabled home, you have the ultimate locator

system. All your Bluetooth-enabled devices can never be misplaced if they are within the bounds of your

home. If an item ever gets lost, all you need to do is go to your PC and start up the Bluetooth locator

system program. For basic systems, you tell the program what device you are looking for, and the device

will beep until it is found. For advanced systems, the Bluetooth locator system will display a map of your

house and show you which room has your lost item. This solution is ideal for people who always misplace

small but essential items like PDAs, wireless phones, keys, TV remotes, watches, and baby pacifiers!

Personalized Family Car

In this example, let's start off with a Bluetooth-enabled car. With a Bluetooth-enabled car, all you need to

do is to set the mirrors, seats, and radio stations just once and store your preferences on a Bluetooth-

enabled device that you carry with you all the time, like a wireless phone, PDA, or a watch. It wouldn't

matter if someone else used your car, because all your preferences are stored on the device you keep

with you. After someone uses your car, all you need to do is upload your preferences from your Bluetooth-

enabled device (like your watch—see

Figure 1-3

) and be on your merry way.

Figure 1-3:

Although the Fossil Wrist PDA doesn't contain any Bluetooth hardware, it does come

preloaded with a Bluetooth-enabled OS— the Palm OS 4.1. Palm OS is a registered trademark of

Palm, Inc.

Bluetooth for Java

by Bruce Hopkins and Ranjith Antony

ISBN:1590590783

Apress

(352 pages)

The authors of this text describe how to develop wireless Java

applications using Bluetooth for a variety of platforms. This

includes an API overview of the Java library, development of

Bluetooth-based services, highlights of security concerns, and

more.

Table of Contents

Bluetooth for Java

Introduction

Chapter 1

Introducing Bluetooth

Chapter 2

Bluetooth 1.1

Chapter 3

Before You Get Started

Chapter 4

Understanding the Java Bluetooth API

Chapter 5

Bluetooth with J2ME MIDP

Chapter 6

Creating a Bluetooth Print Server with JPS API

Chapter 7

Java and OBEX

Chapter 8

Using a Bluetooth Simulator

Chapter 9

Bluetooth Security

Chapter 10

Wireless Embedded Systems with the Micro BlueTarget

Chapter 11

Enterprise Bluetooth Applications with the Ericsson BlipNet

Chapter 12

Bluetooth and Jini

Appendix A

javax.bluetooth

Appendix B

javax.obex

Appendix C

Java Bluetooth Development on the PalmOS Platform

Appendix D

BlipNet 1.1 API

Index

List of Figures

List of Tables

List of Listings

List of Sidebars

Chapter 2:

Bluetooth 1.1

Overview

The main focus of this chapter is to describe the inner workings of Bluetooth. The most current revision of

the protocol is version 1.1. Almost every device on the market today is compliant with Bluetooth version

1.1, although you might be able to find some devices that use the 1.0B version of Bluetooth. The

differences between Bluetooth 1.0B and 1.1 are beyond the scope of this book. The differences are

minimal, and they really don't apply to Java programmers.

What can you expect for future versions of Bluetooth like 1.2 and 2.0? Whenever the Bluetooth SIG (the

group of companies that developed the Bluetooth spec) plans to release later revisions of the spec, you

can expect some things like higher speeds, more profiles, and backward compatibility with 1.1. We

wouldn't expect the newer versions to try to compete with 802.11 speeds, but you might see data rates of

4, 8, or even 12 Mb/s. Bluetooth's niche is as a low-power wireless communication protocol, so don't

expect Bluetooth 2.0 to be a power hog.

CROSS-

REFERENCE

See

Chapter 1

for a discussion of Bluetooth versus 802.11b.

This chapter is all about Bluetooth. We'll give you brief history on how it began and how it got its name.

Next, we'll show you the radio spectrum and where Bluetooth fits in with devices that you probably already

know about. Afterwards, we'll describe the anatomy of a Bluetooth-enabled device by giving a description

of Bluetooth hardware, the Bluetooth stack, and Bluetooth profiles. For the remainder of this book, when

we refer to Bluetooth, we are referring to the 1.1 version of the spec. Now, let's dig in to Bluetooth!

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