使用ANT批量编译Flex应用和模块（Use ANT to batch compiling application and modules of Flex)

使用ANT批量编译Flex应用和模块（Use ANT to batch compiling application and modules of Flex)

ANT提供了对mxmlc命令的支持，可以直接用来编译使用Flex为UI的JavaEE应用，如果你在Flex中也使用Module来作为你每个功能的组织形式，你不妨考虑用如下脚本去编译你的应用：

< target  name ="compileUI"   >
         < echo  message ="start to compile Flex UI"   />
         < for  param ="file" >
             < path >
                 < fileset  dir ="${flexsrc.dir}" >
                     < include  name ="**/*.mxml"   />
                 </ fileset >
             </ path >
             < sequential >         
                 < propertyregex  override ="yes"  property ="compile.target.name"  input ="@{file}"  regexp ="(.*)src(.*)(mxml)"  replace ="\1bin\2swf"   />
                  < mxmlc  file ="@{file}"  output ="${compile.target.name}"
                    services ="${service.file}"  context-root ="${context.root}" >
                     < load-config  filename ="${FLEX_HOME}/frameworks/flex-config.xml"   />
                     < static-link-runtime-shared-libraries > false </ static-link-runtime-shared-libraries >
                     < source-path  path-element ="${flexsrc.dir}"   />
                     <!--  use incremental compiling -->
                     < compiler .incremental > true </ compiler.incremental >
                     < compiler .debug > false </ compiler.debug >
                    
                     <!--  指定外部依赖库文件,这些库文件将不会编译进目标SWF中  -->
                     < compiler .external-library-path dir ="${flexlib.dir}" >
                         < include  name ="**/*.swc"   />
                     </ compiler.external-library-path >
                 </ mxmlc >
                 <!--  清除缓存文件  -->
                 <!--
                <delete file="${compile.target.name}.cache" />
                 -->
                 < echo  message ="Compiled @{file} =====>>   ${compile.target.name}"   />
                
             </ sequential >
         </ for >

     </ target >

注意事项：
1，必须使用ant-contrib包来支持for任务，使用for任务时，别忘了如下声明：

< path  id ="ant.classpath" >
         < fileset  dir ="${ant.lib.dir}" >
             < include  name ="*.jar"   />
         </ fileset >
     </ path >
     < taskdef  resource ="net/sf/antcontrib/antlib.xml"  classpathref ="ant.classpath"   />

2，编译每个mxml时，可用propertyregex来得到output文件名，
3，source-path一定不能写错，或随便写，如果这样的话，会出现如下错误：
              Error: A file found in a source-path must have the same package structure
4，如果在运行的过程中出现Java heap size或permGen不足的情况，可以指定如下系统参数：
              ANT_OPTS=-XX:MaxPermSize=256M -Xmx1024m