MACROMEDIA FLASH REMOTING MX-USING FLASH REMOTING FOR FLASH MX 2004 ACTIONSCRIPT... Istruzioni per il montaggio

Using Flash Remoting for Flash MX 2004 ActionScript 2.0

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Acknowledgments

Project Management: Erick Vera

Writing: Robert Berry

Editing: Barbara Milligan, Antonio Padial, Lisa Stanziano

Production Management: Patrice O’Neill

Media Design and Production: Adam Barnett and John Francis

First Edition: June 2004

Macromedia, Inc.

600 Townsend St.

San Francisco, CA 94103

CONTENTS

INTRODUCTION: About Flash Remoting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Who should read this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

About Flash Remoting documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

What’s new in Flash Remoting for Flash MX 2004 ActionScript 2.0. . . . . . . . . . . 10

Developer resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Contacting Macromedia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CHAPTER 1: Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

About Flash Remoting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Flash Remoting data flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Understanding the Flash Remoting service adapters . . . . . . . . . . . . . . . . . . . . . 16

Building Flash applications with Flash Remoting . . . . . . . . . . . . . . . . . . . . . . . . . 16

Understanding the Flash Remoting development environment. . . . . . . . . . . . . 16

Using Flash Remoting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Migrating existing applications to Flash Remoting for Flash MX 2004

ActionScript 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Making the minimum changes to your application for ActionScript 2.0. . . . . . 22

Taking full advantage of Flash Remoting for Flash MX 2004 ActionScript 2.0 . 23

Migrating the DataGrid application to Flash Remoting for Flash MX 2004

ActionScript 2.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Example: migrating the DataGrid application . . . . . . . . . . . . . . . . . . . . . . . . . 24

CHAPTER 2: Using Flash Remoting ActionScript . . . . . . . . . . . . . . . . . . . . . . . . 29

Flash Remoting application structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Flash Remoting ActionScript classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Properties and methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Importing Flash Remoting ActionScript classes . . . . . . . . . . . . . . . . . . . . . . . . 35

Configuring Flash Remoting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Establishing the Flash Remoting gateway connection . . . . . . . . . . . . . . . . . . . . 37

Specifying a service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Authenticating a user to the application server . . . . . . . . . . . . . . . . . . . . . . . . . 40

Calling service functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Specifying functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Calling functions using named arguments in ColdFusion. . . . . . . . . . . . . . . . . 43

4 Contents

Handling service results and errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Using the RelayResponder object for a service . . . . . . . . . . . . . . . . . . . . . . . . . 44

Using PendingCall and RelayResponder objects for a specific service function . 45

Using the ResultEvent class. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Using the FaultEvent class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Using the Flash Remoting ActionScript API in the

CustomerInfoExampleAPI application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

onReveal() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

updateDetails(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

refreshCustomerData() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

onCustGrid_Change() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

onCustCat_Change() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

onCategoryData(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

onCustomerData() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

onCustomerFault() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

onCategoryFault() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

CHAPTER 3: Using the RemotingConnector component

(Flash Professional only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

RemotingConnector parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Creating an instance of the RemotingConnector component . . . . . . . . . . . . . . 56

Using the RemotingConnector in the CustomerInfoExampleCon application. . . . 57

onReveal() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

updateDetails(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

onCustGrid_Change() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

onCustomerData() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

onCategoryData(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

onCustomerDataFault() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

onCategoryDataFault(). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

CHAPTER 4: Using Flash Remoting Data in ActionScript . . . . . . . . . . . . . . . . . . 63

About Flash Remoting and data types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Understanding Action Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Converting from ActionScript to application server data types . . . . . . . . . . . . . . . 65

Converting from application server data types to ActionScript . . . . . . . . . . . . . . . 67

ColdFusion to ActionScript data conversion issues . . . . . . . . . . . . . . . . . . . . . . . . 69

About working with objects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Working with ActionScript typed objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Working withJava serializable objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

About working with RecordSet objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

About record sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

RecordSet methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Using RecordSet methods and properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Delivering RecordSet data to Flash applications in ColdFusion MX . . . . . . . . . 81

Using Flash UI components with RecordSet objects . . . . . . . . . . . . . . . . . . . . . 83

About working with XML. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Contents 5

CHAPTER 5: The NetConnection Debugger . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Using the NetConnection Debugger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Enabling debugging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Disabling debugging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

NetConnection events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Specific event information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Common event information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Client event messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Application server event messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Flash Communication Server events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Using the NetConnection Debugger in ActionScript. . . . . . . . . . . . . . . . . . . . . . . 94

Using the Netdebug.initialize() method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Using the NetDebug.trace() method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Using connection-specific debugging methods . . . . . . . . . . . . . . . . . . . . . . . . . 95

Configuring debugger output in ActionScript . . . . . . . . . . . . . . . . . . . . . . . . . 96

CHAPTER 6: Using Flash Remoting with ColdFusion MX . . . . . . . . . . . . . . . . . . 97

Using Flash Remoting with ColdFusion pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Determining the Flash service name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Using the Flash scope to pass parameters to ColdFusion pages . . . . . . . . . . . . . 98

Accessing ActionScript objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Using Flash Remoting with ColdFusion components . . . . . . . . . . . . . . . . . . . . . 105

Determining the Flash service name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Returning results to ActionScript . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Passing parameters to ColdFusion components. . . . . . . . . . . . . . . . . . . . . . . . 106

Accessing ActionScript objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Using component metadata with the Flash Remoting service . . . . . . . . . . . . . 109

Using Flash Remoting with server-side ActionScript . . . . . . . . . . . . . . . . . . . . . . 111

Using CF.http() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Using CF.query() . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Calling web services from Flash Remoting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Invoking web service methods using Flash Remoting . . . . . . . . . . . . . . . . . . . 115

Securing access to ColdFusion from Flash Remoting. . . . . . . . . . . . . . . . . . . . . . 116

Assigning security roles to component functions. . . . . . . . . . . . . . . . . . . . . . . 117

Handling errors with ColdFusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

CHAPTER 7: Using Flash Remoting for Java . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

About Flash Remoting for Java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

How Flash Remoting for Java works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Where Flash Remoting fits into the Java application architecture . . . . . . . . . . 120

Calling Java classes or JavaBeans from ActionScript. . . . . . . . . . . . . . . . . . . . . . . 121

Making a Java class or JavaBean available to Flash Remoting . . . . . . . . . . . . . 121

Getting a reference to a Java class or JavaBean in ActionScript . . . . . . . . . . . . 122

Invoking Java methods in ActionScript. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Looking at a Flash application that calls a JavaBean . . . . . . . . . . . . . . . . . . . . 123

6 Contents

Calling Enterprise JavaBeans (EJBs) from Flash. . . . . . . . . . . . . . . . . . . . . . . . . . 128

Getting a reference to an EJBHome object in ActionScript. . . . . . . . . . . . . . . 128

Invoking EJB methods in ActionScript. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Looking at a Flash application that calls an EJB . . . . . . . . . . . . . . . . . . . . . . . 129

Calling servlets and JSPs from Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Coding a servlet to use with Flash Remoting . . . . . . . . . . . . . . . . . . . . . . . . . 132

Getting a reference to a web application in ActionScript. . . . . . . . . . . . . . . . . 132

Calling a servlet or JSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Calling JMX MBeans from Flash (JRun only). . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Getting a reference to an MBean in ActionScript . . . . . . . . . . . . . . . . . . . . . . 135

Invoking MBean methods in ActionScript . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Calling server-side ActionScript from Flash (JRun only) . . . . . . . . . . . . . . . . . . . 135

Getting a reference to a server-side ActionScript file . . . . . . . . . . . . . . . . . . . . 136

Invoking server-side ActionScript functions . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Handling function results in ActionScript . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Using Flash Remoting with JRun security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Looking at the ActionScript authentication code . . . . . . . . . . . . . . . . . . . . . . 139

Looking at the JRun security settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Passing XML objects between Flash and Java. . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Sending an ActionScript XML object to Java . . . . . . . . . . . . . . . . . . . . . . . . . 140

Returning an XML object from Java to Flash . . . . . . . . . . . . . . . . . . . . . . . . . 141

Viewing Flash Remoting log entries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

CHAPTER 8: Using Flash Remoting for Microsoft .NET. . . . . . . . . . . . . . . . . . . 143

Flash Remoting for Microsoft .NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

Where Flash Remoting fits into the Microsoft .NET framework . . . . . . . . . . 144

Understanding the Flash Remoting for Microsoft .NET directory structure . . 145

Setting up a Flash Remoting ASP.NET application. . . . . . . . . . . . . . . . . . . . . 146

Calling ASP.NET pages from Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Making an ASP.NET page available to Flash Remoting . . . . . . . . . . . . . . . . . 147

Getting a reference to an ASPX-based service in ActionScript. . . . . . . . . . . . . 147

Invoking ASPX pages in ActionScript. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Using the Flash Remoting custom server control in ASPX pages. . . . . . . . . . . 149

Using the Flash Remoting namespace in code-behind files . . . . . . . . . . . . . . . 150

Using ASP.NET state management with Flash Remoting . . . . . . . . . . . . . . . . 151

Using ASP.NET exception handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Using ADO.NET objects with Flash Remoting. . . . . . . . . . . . . . . . . . . . . . . . . . 153

Displaying a RecordSet object in Flash with ActionScript . . . . . . . . . . . . . . . . . . 155

Calling web services from Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Invoking web service methods using Flash Remoting . . . . . . . . . . . . . . . . . . . 157

Invoking a remote web service from Flash. . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Calling ASP.NET assemblies from Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Calling assemblies from Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Returning an ActionScript object from an assembly . . . . . . . . . . . . . . . . . . . . 160

Viewing Flash Remoting log entries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Contents 7

APPENDIX A: Using NetServices and Connection Classes . . . . . . . . . . . . . . . . 163

Creating a gateway connection using the NetServices object . . . . . . . . . . . . . . . . 163

Specifying the gateway in the NetServices

createGatewayConnection() method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Using the NetServices setDefaultGatewayUrl() method . . . . . . . . . . . . . . . . . 164

Authenticating a user to the application server . . . . . . . . . . . . . . . . . . . . . . . . 165

Creating the service object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Handling results for a Connection object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Directing all results for a service to a single responder object . . . . . . . . . . . . . 167

Directing results for a service to specific responder objects . . . . . . . . . . . . . . . 168

Handling errors for a Connection object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

The error object . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Error-handling hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Error-handling strategies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

8 Contents

INTRODUCTION

About Flash Remoting

Macromedia Flash Remoting for Flash MX 2004 ActionScript 2.0 provides a communications

channel between Macromedia Flash applications and a wide range of business logic and data from

ColdFusion, Microsoft®.NET, Java, and Simple Object Access Protocol (SOAP)-based web

services. Using Flash Remoting is intended for Macromedia Flash and application server developers

who want to build Rich Internet Applications.

This chapter contains the following sections:

•“Who should read this book” on page 9

•“About Flash Remoting documentation” on page 9

•“What’s new in Flash Remoting for Flash MX 2004 ActionScript 2.0” on page 10

•“Developer resources” on page 11

•“Contacting Macromedia” on page 12

Who should read this book

This book is intended for developers who have previous experience with Flash MX or

Flash MX 2004 and an application server, including Macromedia ColdFusion MX, Java,

or Microsoft .NET.

If you are not familiar with Macromedia Flash MX or Macromedia Flash MX 2004, read the

documentation set. If you are not familiar with application server development, read the

documentation included with your server.

About Flash Remoting documentation

The Macromedia Flash Remoting documentation is designed to provide support for the complete

spectrum of participants. Organized to help you quickly locate the information that you need, the

Flash Remoting documentation is provided in the Flash Help system. From the Help menu you

can open the Help panel or press F1 as a shortcut to access Flash Help. Then select Using Flash

Remoting or the Flash Remoting ActionScript Dictionary, depending on the information that

you are seeking.

Flash Remoting documentation is available in Acrobat format (PDF) on the Flash Remoting

product CD-ROM.

10 Introduction: About Flash Remoting

Use the following sources to help you understand and use the tools and technologies that Flash

Remoting encompasses.

•Flash MX 2004 Help is the comprehensive information source for all Flash MX 2004 features.

To open Flash MX 2004 Help in your browser, either select Help > Using Flash, or click the

Help button in any dialog box, or the question mark icon in inspectors, windows, and panels.

•The ActionScript Dictionary describes the syntax and use of ActionScript elements in

Macromedia Flash MX 2004 and Macromedia Flash MX Professional 2004. To access the

ActionScript Dictionary in Flash MX 2004, select Help > ActionScript Dictionary from the

Help menu.

•ColdFusion MX documentation is carefully crafted to assist you in every facet of ColdFusion

use. To access the ColdFusion MX documentation, activate the ColdFusion MX Administrator

and click the Documentation link.

For information on other application servers, see the documentation for those products.

What’s new in Flash Remoting for Flash MX 2004

ActionScript 2.0

Flash Remoting for Flash MX 2004 ActionScript 2.0 consists of the following two principal

features:

•The Remoting Connector component

The RemotingConnector component is a new component that allows you to work directly

with the new data binding features in Flash MX 2004 Professional. Simply drag the

RemotingConnector onto the Stage and use the Component inspector to set up schema and

bindings. In addition, the RemotingConnector component provides a simple API consistent

with other connectors found in Flash MX 2004 Professional.

For more information on using the Remoting Connector, see Chapter 2, “Using Flash

Remoting ActionScript,” on page 29.

•ActionScript 2.0 API

The Flash Remoting ActionScript API has been updated to comply with ActionScript 2.0. The

ActionScript 2.0 version of the API consists of the following significant features:

■Enforcement of strict data typing, which requires you to declare the data types of variables

and prohibits you from assigning different types of data to them.

■Enforcement of case sensitivity, which means that myvar and myVar are two different

variables, though they were considered the same variable with different spellings in

ActionScript 1.0.

■A new Service class, which allows you to create a gateway connection and at the same time

obtain a reference to a service and its methods. It includes the connection property, which

returns the connection and also allows you to set credentials for authorization on the remote

server.

Note: The NetServices class is still supported but has been deprecated in favor of the new

Service and Connection classes

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