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AdobeFlex

AdobeFlex, originally released by Macromedia in March 2004, is a combination of technologies that support the development and deployment of RIA (RichInternetApplications) based on its proprietary MacromediaFlash platform.

Software formation

Traditional programmers have difficulties in developing animation applications, and the Flex platform came into being in the first place. Flex tries to improve this problem by providing a workflow and programming model that programmers are already familiar with.

Flex was originally released as a J2EE (Java2Platform,EnterpriseEdition) application, or as a JSP (JavaServerPages) tag library. It can compile running MXML (Flex markup language) and ActionScript into FLASH applications (that is, binary SWF files). The * version of Flex supports the creation of static files that can be deployed online using interpretive compilation and without the need to purchase a server license.

Software features

Flex's goal is to make it faster and easier for programmers to develop RIA applications. In the multi-tier development model, Flex applications belong to the presentation layer.

Flex is developed with GUI interface and uses MXMLAdobeFlex software language based on XML. Flex has a variety of components, can achieve WebServices, remote objects, draganddrop, column sorting, charts and other functions; Flex built-in animation effects and other simple interactive interface. Compared with HTML-based applications (such as PHP, ASP, JSP, ColdFusion and CFMX), server-side templates need to be executed at each request. Because the client only needs to be loaded once, the workflow of Flex applications is greatly improved. Flex's language and file structure also try to separate the logic of the application from the design.

The Flex server is also the communication channel between the client and XMLWebServices and remote objects (ColdfusionCFCs, or Java classes, other objects that support ActionMessageFormat).

OpenLaszlo and AJAX technologies are generally considered as possible alternatives to Flex.

Brief introduction of version

Original version (FlexServer1.0 vs. 1.5)

The target market for the initial version of Flex is enterprise application development, with a price of about US$15000 per CPU. Each license contains five FlexBuilder licenses.

AdobeFlex2

Flex2 has changed its licensing model, opening up its "FlexFramework" technology to a free version.

The new version of FlexBuilder2 is based on EclipseIDE, and enterprise-class services are still valid for users who need advanced features such as datapush and automated testing.

Flex2 introduces the use of a new version of the language ActionScript3, which requires a later version of FlashPlayer9 as the runtime environment (runtime).

Flex is * the original Macromedia product that was renamed by Adobe under the Adobe trademark.

AdobeFlex3

New features added by Flex3:

◆ database wizard online, default support Derby, PostgreSQL, SQLMode-JDBC, MySQL

◆ now has the functions of moving, zooming in and out in visual editing.

◆ program code reorganization part, with the renaming variable function, can include all project files

◆, you can also choose a different version of SDK

The document annotations of ◆ AS are more convenient to make into an online browsing version of HTML, so that you can query them later.

◆ quickly wraps Flex as an AIR desktop program

◆ integrates LiveCycleDataServices (formerly known as FlexDataServices). In addition to pushing large amounts of data in real time, it can also be compiled on Server after clicking on a page.

Compared with Flex2, Flex3 takes up less space and generates less files. The Flex framework is integrated into FLASHPLAYER. The reuse of Flex framework between multiple websites also improves the efficiency of Flex program runtime.

AdobeFlex4

Flex4 has launched SDK downloads, and a new version of Flex will be released in 2009.

Flex and ColdFusion

Macromedia embeds a subset of Flex1.5 into its ColdFusionMX7 middleware platform for use in Flash forms. Although this platform can be used to develop RIA, its original purpose is to develop rich forms applications, so this function is not supported by Macromedia.

AdobeFlex application development steps

The following is derived directly from Flex2.0Beta3 's help file:

◆ uses a system predefined component (windows, buttons, etc.) to define a development interface.

◆ organizes and arranges components, and now user-defined interface design.

◆ uses styles and themes to define visible designs.

◆ adds dynamic actions, such as interaction between applications.

◆ defines and connects to the last data service as needed.

◆ generates a SWF file that runs in the Flash player from the source code.

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