Java消息服务 影印版2025|PDF|Epub|mobi|kindle电子书版本百度云盘下载

Java消息服务 影印版PDF格式电子书版下载

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1．Messaging Basics1

The Advantages of Messaging3

Heterogeneous Integration3

Reduce System Bottlenecks3

Increase Scalability4

Increase End User Productivity4

Architecture Flexibility and Agility5

Enterprise Messaging5

Centralized Architectures7

Decentralized Architectures7

Hybrid Architectures8

Centralized Architecture As a Model8

Messaging Models9

Point-to-Point10

Publish-and-Subscribe10

JMS API11

Point-to-Point API13

Publish-and-Subscribe API14

Real-World Scenarios14

Service-Oriented Architecture15

Event-Driven Architecture16

Heterogeneous Platform Integration16

Enterprise Application Integration17

Business-to-Business17

Geographic Dispersion18

Information Broadcasting18

Building Dynamic Systems18

RPC Versus Asynchronous Messaging21

Tightly Coupled RPC21

Enterprise Messaging23

2．Developing a Simple Example25

The Chat Application25

Getting Started with the Chat Example28

Examining the Source Code30

Sessions and Threading39

3．Anatomy of a JMS Message41

Headers42

Automatically Assigned Headers43

Developer-Assigned Headers46

Properties47

Application-Specific Properties47

JMS-Defined Properties49

Provider-Specific Properties50

Message Types50

Message50

TextMessage51

ObjectMessage52

BytesMessage53

StreamMessage56

MapMessage58

Read-Only Messages60

Client-Acknowledged Messages61

Interoperability and Portability of Messages61

4．Point-to-Point Messaging63

Point-to-Point Overview63

When to Use Point-to-Point Messaging66

The QBorrower and QLender Application67

Configuring and Running the Application67

The QBorrower Class69

The QLender Class76

Message Correlation81

Dynamic Versus Administered Queues83

Load Balancing Using Multiple Receivers84

Examining a Queue85

5．Publish-and-Subscribe Messaging87

Publish-and-Subscribe Overview87

When to Use Publish-and-Subscribe Messaging89

The TBorrower and TLender Application90

Configuring and Running the Application90

The TLender Class92

The TBorrower Class96

Durable Versus Nondurable Subscribers100

Dynamic Versus Administered Subscribers101

Unsubscribing Dynamic Durable Subscribers104

Temporary Topics104

6．Message Filtering107

Message Selectors109

Identifiers110

Literals111

Comparison Operators111

Arithmetic Operators113

Declaring a Message Selector114

Message Selector Examples116

Managing Claims in an HMO116

Notification of Certain Bids on Inventory116

Priority Handling116

Stock Trade Order Auditing117

Not Delivered Semantics117

Design Considerations118

7．Guaranteed Messaging and Transactions125

Guaranteed Messaging125

Message Autonomy126

Store-and-Forward Messaging126

Message Acknowledgments and Failure Conditions126

Message Acknowledgments127

AUTO_ACKNOWLEDGE127

DUPS_OK_ACKNOWLEDGE132

CLIENT_ACKNOWLEDGE132

Message Groups and Acknowledgment133

Handling Redelivery of Messages in an Application134

Message Groups Example134

Message Grouping and Multiple Receivers143

Transacted Messages145

Creating and Using a JMS Transaction147

Transacted Session Example147

Distributed Transactions150

Lost Connections151

The ExceptionListener Example152

Dead Message Queues153

8．Java EE and Message-Driven Beans155

Java EE Overview155

Enterprise JavaBeans156

Enterprise JavaBeans 3.0(EJB3)Overview157

Simplified Bean Development158

Dependency Injection158

Simplified Callback Methods159

Programmatic Defaults159

Interceptors160

Java Persistence API162

JMS Resources in Java EE162

The JNDI Environment Naming Context(ENC)164

Message-Driven Beans166

Concurrent Processing and Scalability168

Defining Message-Driven Beans168

Message-Driven Bean Use Cases171

Message Facade171

Transformation and Routing173

9．Spring and JMS177

Spring Messaging Architecture177

JmsTemplate Overview180

Send Methods181

convertAndSend Methods181

receive and receiveSelected Methods182

receiveAndConvert Methods183

Connection Factories and JMS Destinations184

Using JNDI184

Using Native Classes187

Sending Messages189

Using the send Method190

Using the convertAndSend Method191

Using a Nondefault JMS Destination193

Receiving Messages Synchronously195

Message-Driven POJOs198

The Spring Message Listener Container198

MDP Option 1:Using the MessageListener Interface199

MDP Option 2:Using the SessionAwareMessageListener Interface201

MDP Option 3:Using the MessageListenerAdapter202

Message Conversion Limitations207

The Spring JMS Namespace208

<jms:listener-container>Element Properties209

<jms:listener>Element Properties211

10．Deployment Considerations213

Performance,Scalability,and Reliability213

Determining Message Throughput Requirements213

Testing the Real-World Scenario214

To Multicast or Not to Multicast217

TCP/IP218

UDP218

IP Multicast218

Messaging Over IP Multicast219

The Bottom Line221

Security222

Authentication222

Authorization223

Secure Communication224

Firewalls and HTTP Tunneling224

Connecting to the Outside World225

Bridging to Other Messaging Systems227

11．Messaging Design Considerations229

Internal Versus External Destination229

Internal Destination Topology230

External Destination Topology231

Request/Reply Messaging Design232

Messaging Design Anti-Patterns236

Single-Purpose Queue236

Message Priority Overuse240

Message Header Misuse240

A．The Java Message Service API245

B．Message Headers265

C．Message Properties277

D．Installing and Configuring ActiveMQ285

Index291