1.下载地址：http://opensource.adobe.com/wiki/display/flexsdk/downloads
或直接下载这个 Flex Compiler Modules：FlexModule_j2ee.zip
2:把webtier.war解压 替换原来工程下的WEB-INF，META-INF
3:如果SERVER开着的话,重启.
4:可以在JSP文件中写FLEX代码了!
===================== test.jsp START =====================
<%@ taglib uri="FlexTagLib" prefix="mm" %>
<%@ page contentType="text/html; charset=utf-8" %>
<html>
This is html powered by jsp<br>
<mm:mxml source="MainApp.mxml" width="100%" height="100%">
</mm:mxml>
</html>
<%@ page contentType="text/html; charset=utf-8" %>
<html>
This is html powered by jsp<br>
<mm:mxml source="MainApp.mxml" width="100%" height="100%">
</mm:mxml>
</html>
===================== test.jsp End =====================
这个例子非常简单就是将原来写好的MXML文件嵌入到JSP中.MainApp.mxml可以改成你需要嵌入的FLEX文件.