ant是一个基于JAVA的自动化脚本引擎，脚本格式为XML。除了做JAVA编译相关任务外，ANT还可以通过插件实现很多应用的调用。

平时我们在编译Flex文件时都是使用的FlexBuilder提供的编译功能,也可以实现自动编译的功能,但如果项目一大,涉及到一些公共组件的调用比较多时,这种编译就不是很方便了.

在习惯了利用ant自动化编译部署Java应用程序的方便功能以后,自然想到也要利用ant的脚本功能进行Flex的自动编译,以下就是我写的关于编译Flex的build.xml文件(附件中有实例工程压缩文件),实现了自动编译与生成API文档的功能:

<?xml version="1.0"?>
<project name="flex_examples" basedir="../" default="compile_modified">

    <property file="./build/build.properties" />

    <!--
        Have you edit the properties file to make sure the paths are right on your system?
    -->
    <target name="properties">
        <fail unless="asdoc.exe">The "asdoc.exe" property must be set in ${build.dir}/build.properties.</fail>
        <fail unless="compc.exe">The "compc.exe" property must be set in ${build.dir}/build.properties.</fail>
        <fail unless="mxmlc.exe">The "mxmlc.exe" property must be set in ${build.dir}/build.properties.</fail>
    </target>

    <!--
        Extension for ANT to allow for tasks like "for" and "propertyregex"
    -->
    <taskdef resource="net/sf/antcontrib/antlib.xml">
        <classpath>
            <pathelement location="libs/ant/ant-contrib.jar" />
        </classpath>
    </taskdef>

    <!--
        Generate the main applications using the library
    -->
    <target name="compile_modified" depends="properties">
        <!--
            Loop over all of the Sample applications in the mains directory,
            compile them, and place the resulting .swf next to the application
            .mxml file.
        -->
        <for param="file">
            <!-- Find the sample applications -->
            <fileset dir="${src.dir}">
                <!--
                    The modified selector will only select files that have been
                    modified since the mains target was last run. This means we
                    can update a single main, then run the mains target and
                    only the updated main will get recompiled.
                -->
                <modified/>
                <include name="**/*${application.name.flag}.mxml" />
                <!--
                    For only building specific mains, comment out
                    the line above, and uncomment the line below and modify
                    as appropriate.
                -->
                <!--<include name="**/HorizontalAxisDataSelector_Sample.mxml" />-->
            </fileset>

            <sequential>
                <propertyregex property="mainApplicationName" override="yes" input="@{file}"
                                        regexp=".*\${file.separator}(.*)${application.name.flag}.mxml" replace="\1" />
                <propertyregex property="mainFolderName" override="yes" input="@{file}"
                                        regexp="(.*)\${file.separator}(.*)${application.name.flag}.mxml" replace="\1" />

                <exec executable="${mxmlc.exe}" dir="${basedir}">
                    <arg line="'@{file}'" />
                    <arg line="-o '${mainFolderName}/${mainApplicationName}${application.name.flag}.swf'" />

                    <arg line="-l '${lib.dir}'" />
                    <arg line="-l '${flexsdk.lib.dir}'" />
                    <arg line="-sp '${src.dir}'" />

                    <arg line="-optimize" />

                    <arg line="-locale ${flexsdk.locale}" />
                    <arg line="-l '${flexsdk.locale.dir}'" />
                </exec>
            </sequential>
        </for>

    </target>

    <!--
        Generate ASDoc output for the library
    -->
    <target name="docs" depends="properties">
        <!-- Clean out the contents of the doc directory, without deleting "docs" -->

        <delete includeemptydirs="true">
            <fileset dir="${docs.dir}" includes="**/*" />
        </delete>

        <exec executable="${asdoc.exe}" spawn="no">
            <!-- Place the documentation in the "docs" directory -->
            <arg line="-o '${docs.dir}'" />

            <!-- Specify the main source path as "src" -->
            <arg line="-sp '${src.dir}'" />

            <!-- Document all of the classes in the "src" tree -->
            <arg line="-ds '${src.dir}' " />

            <!-- Include the library name in the window title -->
            <arg line="-window-title '${library.name}' "/>

            <arg line="-templates-path '${flexsdk.templates.dir}' "/>
        </exec>
    </target>


</project>

     
     	
      	
      	
      		
       
        The "asdoc.exe" property must be set in ${build.dir}/build.properties.
       		
       
        The "compc.exe" property must be set in ${build.dir}/build.properties.
       		
       
        The "mxmlc.exe" property must be set in ${build.dir}/build.properties.
       	
      		
      	
      		
       			
        		
       	
      		
      	
      		
       		
       			
        			
        				
         				
         				
         				
         				
         			
        								
        				
         				
         						
         					
          					
          										
          					
          					
          										
          					
          					
          				
         			
        		
       			
      		
      	
      		
       				
       			
        		
       				
       			
        			
        						
        			
        						
        			
        						
        			
        						
        		
       	
      	
     

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