What is Flex? What is the relationship between flex and flash? What problems does flex solve? What is the relationship between flex and J2EE/. Net?

What is Flex? What is the relationship between flex and flash? What problems does flex solve? What is the relationship between flex and J2EE/. Net?

Flex is the Presentation Server (Presentation Service) released by Macromedia ),
It is an application of Java Web iner or. NET Server,
According to the. mxml file (pure XML description file and ActionScript)
The. SWF file is sent to the client, which is interpreted and executed by the flash player or Shockwave Player of the client,
Provides a rich user experience.

The famous Macromedia Flash is a powerful vector animation editing tool,
After starting from animation, Flash has been seeking to dominate the rich Internet application (RIA rich client,

The most influential thing is that we have launched an object-oriented script actionscript2.0, which is similar to Java swing.
Class Library and corresponding component (component ).

Flexis a non-flashpath like java).net. it interprets the. mxmlfile to organize components and generate a .swf file.

The component of Flex is similar to that of flash, but it has been improved and enhanced.

Flash can achieve the effect of Flex. Why do I need Flex? I understand that there are two reasons:

1. to cater to more developers ).
Flash is designed for designers. The UI also includes the concept and writing of Flash animation.ProgramDevelopers are incompatible with each other,
To attract more programmers such as JSP, ASP, and PHP,
Macromedia released flex to describe the interface with very simple. mxml, which is very similar to JSP, ASP, and PHP. (x/d) HTML,
Moreover, mxml is more standardized and standardized.

2. For a standard. You must have heard of Microsoft's next-generation system longhorn,
At the same time as Longhorn was launched, Microsoft will also launch the new language XAML, an interface description language,
It corresponds to something that is very similar to Smart Client and flex.
Mxml and XAML are similar... ... I don't need to talk about the column benefits.

Flex has nothing to do with J2EE/. net. Macromedia uses Java to build an application to integrate Flash technology into J2EE,
Use. NET technology to build a. NET application to integrate Flash technology into. net. It should be said that flex solves the problems between J2EE and. net.
The most tedious problem is the problem of the Web Client.
Microsoft is relatively mean to built-in IE (installed in advance) a lot of space, can be called by. net, such as DataGrid,
There is no way for Java. It is a headache to print a tag with the most primitive HTML,
In addition, JavaScript on the client is the most difficult to debug, and Java and. NET are helpless.