首先：
1.下载flex的sdk，如果你电脑有装flash builder，它自带了一份，位于安装目录的sdks目录下。
备注：（sdk依赖java的jre）
2.配置mxmlc的java运行环境jre，该配置文件位于sdk/bin/jvm.config，更改java.home=jre所在目录。
3.配置mxmlc的环境变量,改环境变量exe，位于sdk/bin/mxmlc.exe，控制台输入：mxmlc，没报错证明配置成功。
注意：如果不配置，并且你之前有配置过java的jre，那么mxmlc会默认为java的jre。
然后：需要一个编译项目的配置文件flex-config .xml，该文件可以在sdk的frameworks目录可以找到。可以参考以下完整的：
<?xml version="1.0"?> <!-- ADOBE SYSTEMS INCORPORATED Copyright 2005-2007 Adobe Systems Incorporated All Rights Reserved. NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms of the license agreement accompanying it. --> <flex-config> <!-- Specifies the minimum player version that will run the compiled SWF. --> <target-player>11.1</target-player> <!-- Specifies the version of the compiled SWF --> <swf-version>14</swf-version> <compiler> <!-- Turn on generation of accessible SWFs. --> <accessible>true</accessible> <!-- Specifies the locales for internationalization. --> <locale> <locale-element>en_US</locale-element> </locale> <!-- List of path elements that form the roots of ActionScript class hierarchies. --> <!-- not set --> <!-- <source-path> <path-element>string</path-element> </source-path> --> <!-- Allow the source-path to have path-elements which contain other path-elements --> <allow-source-path-overlap>false</allow-source-path-overlap> <!-- Run the AS3 compiler in a mode that detects legal but potentially incorrect --> <!-- code. --> <show-actionscript-warnings>true</show-actionscript-warnings> <!-- Turn on generation of debuggable SWFs. False by default for mxmlc, --> <!-- but true by default for compc. --> <!-- <debug>true</debug> --> <!-- List of SWC files or directories to compile against but to omit from --> <!-- linking. --> <external-library-path> <path-element>${flexlib}/libs/player/{targetPlayerMajorVersion}.{targetPlayerMinorVersion}/playerglobal.swc</path-element> </external-library-path> <!-- not set --> <!--<include-libraries> <library>src/res/comlib.swc</library> </include-libraries> --> <!-- List of SWC files or directories that contain SWC files. --> <library-path> <path-element>${flexlib}/libs</path-element> <path-element>${flexlib}/libs/mx</path-element> <path-element>${flexlib}/locale/{locale}</path-element> <!-- The following entry is because LCDS copies playerfds.swc in the player folder --> <path-element>${flexlib}/libs/player</path-element> <path-element>${flexlib}/src/res</path-element> </library-path> <namespaces> <!-- Specify a URI to associate with a manifest of components for use as MXML --> <!-- elements. --> <namespace> <uri>http://ns.adobe.com/mxml/2009</uri> <manifest>${flexlib}/mxml-2009-manifest.xml</manifest> </namespace> <namespace> <uri>library://ns.adobe.com/flex/spark</uri> <manifest>${flexlib}/spark-manifest.xml</manifest> </namespace> <namespace> <uri>library://ns.adobe.com/flex/mx</uri> <manifest>${flexlib}/mx-manifest.xml</manifest> </namespace> <namespace> <uri>http://www.adobe.com/2006/mxml</uri> <manifest>${flexlib}/mxml-manifest.xml</manifest> </namespace> </namespaces> <!-- Enable post-link SWF optimization. --> <optimize>true</optimize> <!-- Enable trace statement omission. --> <omit-trace-statements>true</omit-trace-statements> <!-- Keep the following AS3 metadata in the bytecodes. --> <!-- Warning: For the data binding feature in the Flex framework to work properly, --> <!-- the following metadata must be kept: --> <!-- 1. Bindable --> <!-- 2. Managed --> <!-- 3. ChangeEvent --> <!-- 4. NonCommittingChangeEvent --> <!-- 5. Transient --> <!-- <keep-as3-metadata> <name>Bindable</name> <name>Managed</name> <name>ChangeEvent</name> <name>NonCommittingChangeEvent</name> <name>Transient</name> </keep-as3-metadata> --> <!-- Turn on reporting of data binding warnings. For example: Warning: Data binding --> <!-- will not be able to detect assignments to "foo". --> <show-binding-warnings>true</show-binding-warnings> <!-- toggle whether warnings generated from unused type selectors are displayed --> <show-unused-type-selector-warnings>true</show-unused-type-selector-warnings> <!-- Run the AS3 compiler in strict error checking mode. --> <strict>true</strict> <!-- Use the ActionScript 3 class based object model for greater performance and better error reporting. --> <!-- In the class based object model most built-in functions are implemented as fixed methods of classes --> <!-- (-strict is recommended, but not required, for earlier errors) --> <as3>true</as3> <!-- Use the ECMAScript edition 3 prototype based object model to allow dynamic overriding of prototype --> <!-- properties. In the prototype based object model built-in functions are implemented as dynamic --> <!-- properties of prototype objects (-strict is allowed, but may result in compiler errors for --> <!-- references to dynamic properties) --> <es>false</es> <!-- List of CSS or SWC files to apply as a theme. --> <theme> <!-- The Flex 4 default theme is Spark. --> <filename>${flexlib}/themes/Halo/halo.swc</filename> </theme> <!-- Turns on the display of stack traces for uncaught runtime errors. --> <verbose-stacktraces>false</verbose-stacktraces> <!-- Defines the AS3 file encoding. --> <!-- not set --> <!-- <actionscript-file-encoding></actionscript-file-encoding> --> <fonts> <!-- Enables advanced anti-aliasing for embedded fonts, which provides greater clarity for small --> <!-- fonts. This setting can be overriden in CSS for specific fonts. --> <!-- NOTE: flash-type has been deprecated. Please use advanced-anti-aliasing <flash-type>true</flash-type> --> <advanced-anti-aliasing>true</advanced-anti-aliasing> <!-- The number of embedded font faces that are cached. --> <max-cached-fonts>20</max-cached-fonts> <!-- The number of character glyph outlines to cache for each font face. --> <max-glyphs-per-face>1000</max-glyphs-per-face> <!-- Defines ranges that can be used across multiple font-face declarations. --> <!-- See flash-unicode-table.xml for more examples. --> <!-- not set --> <!-- <languages> <language-range> <lang>englishRange</lang> <range>U+0020-007E</range> </language-range> </languages> --> <!-- Compiler font manager classes, in policy resolution order--> <managers> <manager-class>flash.fonts.JREFontManager</manager-class> <manager-class>flash.fonts.BatikFontManager</manager-class> <manager-class>flash.fonts.AFEFontManager</manager-class> <manager-class>flash.fonts.CFFFontManager</manager-class> </managers> <!-- File containing cached system font licensing information produced via java -cp mxmlc.jar flex2.tools.FontSnapshot (fontpath) Will default to winFonts.ser on Windows XP and macFonts.ser on Mac OS X, so is commented out by default. --> <local-fonts-snapshot>${flexlib}/localFonts.ser</local-fonts-snapshot> </fonts> <!-- Array.toString() format has changed. --> <warn-array-tostring-changes>false</warn-array-tostring-changes> <!-- Assignment within conditional. --> <warn-assignment-within-conditional>true</warn-assignment-within-conditional> <!-- Possibly invalid Array cast operation. --> <warn-bad-array-cast>true</warn-bad-array-cast> <!-- Non-Boolean value used where a Boolean value was expected. --> <warn-bad-bool-assignment>true</warn-bad-bool-assignment> <!-- Invalid Date cast operation. --> <warn-bad-date-cast>true</warn-bad-date-cast> <!-- Unknown method. --> <warn-bad-es3-type-method>true</warn-bad-es3-type-method> <!-- Unknown property. --> <warn-bad-es3-type-prop>true</warn-bad-es3-type-prop> <!-- Illogical comparison with NaN. Any comparison operation involving NaN will evaluate to false because NaN != NaN. --> <warn-bad-nan-comparison>true</warn-bad-nan-comparison> <!-- Impossible assignment to null. --> <warn-bad-null-assignment>true</warn-bad-null-assignment> <!-- Illogical comparison with null. --> <warn-bad-null-comparison>true</warn-bad-null-comparison> <!-- Illogical comparison with undefined. Only untyped variables (or variables of type *) can be undefined. --> <warn-bad-undefined-comparison>true</warn-bad-undefined-comparison> <!-- Boolean() with no arguments returns false in ActionScript 3.0. Boolean() returned undefined in ActionScript 2.0. --> <warn-boolean-constructor-with-no-args>false</warn-boolean-constructor-with-no-args> <!-- __resolve is no longer supported. --> <warn-changes-in-resolve>false</warn-changes-in-resolve> <!-- Class is sealed. It cannot have members added to it dynamically. --> <warn-class-is-sealed>true</warn-class-is-sealed> <!-- Constant not initialized. --> <warn-const-not-initialized>true</warn-const-not-initialized> <!-- Function used in new expression returns a value. Result will be what the --> <!-- function returns, rather than a new instance of that function. --> <warn-constructor-returns-value>false</warn-constructor-returns-value> <!-- EventHandler was not added as a listener. --> <warn-deprecated-event-handler-error>false</warn-deprecated-event-handler-error> <!-- Unsupported ActionScript 2.0 function. --> <warn-deprecated-function-error>true</warn-deprecated-function-error> <!-- Unsupported ActionScript 2.0 property. --> <warn-deprecated-property-error>true</warn-deprecated-property-error> <!-- More than one argument by the same name. --> <warn-duplicate-argument-names>true</warn-duplicate-argument-names> <!-- Duplicate variable definition --> <warn-duplicate-variable-def>true</warn-duplicate-variable-def> <!-- ActionScript 3.0 iterates over an object's properties within a "for x in target" statement in random order. --> <warn-for-var-in-changes>false</warn-for-var-in-changes> <!-- Importing a package by the same name as the current class will hide that class identifier in this scope. --> <warn-import-hides-class>true</warn-import-hides-class> <!-- Use of the instanceof operator. --> <warn-instance-of-changes>true</warn-instance-of-changes> <!-- Internal error in compiler. --> <warn-internal-error>true</warn-internal-error> <!-- _level is no longer supported. For more information, see the flash.display package. --> <warn-level-not-supported>true</warn-level-not-supported> <!-- Missing namespace declaration (e.g. variable is not defined to be public, private, etc.). --> <warn-missing-namespace-decl>true</warn-missing-namespace-decl> <!-- Negative value will become a large positive value when assigned to a uint data type. --> <warn-negative-uint-literal>true</warn-negative-uint-literal> <!-- Missing constructor. --> <warn-no-constructor>false</warn-no-constructor> <!-- The super() statement was not called within the constructor. --> <warn-no-explicit-super-call-in-constructor>false</warn-no-explicit-super-call-in-constructor> <!-- Missing type declaration. --> <warn-no-type-decl>true</warn-no-type-decl> <!-- In ActionScript 3.0, white space is ignored and '' returns 0. Number() returns --> <!-- NaN in ActionScript 2.0 when the parameter is '' or contains white space. --> <warn-number-from-string-changes>false</warn-number-from-string-changes> <!-- Change in scoping for the this keyword. Class methods extracted from an --> <!-- instance of a class will always resolve this back to that instance. In --> <!-- ActionScript 2.0 this is looked up dynamically based on where the method --> <!-- is invoked from. --> <warn-scoping-change-in-this>false</warn-scoping-change-in-this> <!-- Inefficient use of += on a TextField.--> <warn-slow-text-field-addition>true</warn-slow-text-field-addition> <!-- Possible missing parentheses. --> <warn-unlikely-function-value>true</warn-unlikely-function-value> <!-- Possible usage of the ActionScript 2.0 XML class. --> <warn-xml-class-has-changed>false</warn-xml-class-has-changed> </compiler> <!-- compute-digest: writes a digest to the catalog.xml of a library. Use this when the library will be used as a cross-domain rsl.--> <!-- compute-digest usage: <compute-digest>boolean</compute-digest> --> <!-- remove-unused-rsls: remove RSLs that are not being used by the application--> <remove-unused-rsls>true</remove-unused-rsls> <!-- A list of runtime shared library URLs to be loaded before applications start. --> <!-- not set --> <!-- <runtime-shared-libraries> <url>string</url> <url>string</url> </runtime-shared-libraries> --> <!-- runtime-shared-library-path: specifies a SWC or directory to link against and an RSL URL to load with optional failover URLs --> <!-- Framework SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/framework.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/framework_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>framework_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- TextLayout SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/textLayout.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/tlf/2.0.0.232/textLayout_2.0.0.232.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>textLayout_2.0.0.232.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- Spark SWC--> <runtime-shared-library-path> <path-element>${flexlib}/libs/spark.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/spark_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>spark_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- Sparkskins SWC--> <runtime-shared-library-path> <path-element>${flexlib}/libs/sparkskins.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/sparkskins_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>sparkskins_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- RPC SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/rpc.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/rpc_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>rpc_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- Charts SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/charts.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/charts_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>charts_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- Spark_dmv SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/spark_dmv.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/spark_dmv_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>spark_dmv_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- OSMF SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/osmf.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/osmf_1.0.0.16316.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>osmf_1.0.0.16316.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- MX SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/mx/mx.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/mx_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>mx_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- Advancedgrids SWC --> <runtime-shared-library-path> <path-element>${flexlib}/libs/advancedgrids.swc</path-element> <rsl-url>http://fpdownload.adobe.com/pub/swz/flex/4.6.0.23201/advancedgrids_4.6.0.23201.swz</rsl-url> <policy-file-url>http://fpdownload.adobe.com/pub/swz/crossdomain.xml</policy-file-url> <rsl-url>advancedgrids_4.6.0.23201.swz</rsl-url> <policy-file-url></policy-file-url> </runtime-shared-library-path> <!-- static-link-runtime-shared-libraries: statically link the libraries specified by the -runtime-shared-libraries-path option.--> <static-link-runtime-shared-libraries>false</static-link-runtime-shared-libraries> <!-- target-player: specifies the version of the player the application is targeting. Features requiring a later version will not be compiled into the application. The minimum value supported is "9.0.0".--> <!-- target-player usage: <target-player>version</target-player> --> <!-- Enables SWFs to access the network. --> <use-network>true</use-network> <!-- Metadata added to SWFs via the SWF Metadata tag. --> <metadata> <title>Adobe Flex 4 Application</title> <description>http://www.adobe.com/products/flex</description> <publisher>unknown</publisher> <creator>unknown</creator> <language>EN</language> </metadata> <!-- licenses: specifies a list of product and serial number pairs. --> <!-- not set --> <!-- <licenses> <license> <product>string</product> <serial-number>number</serial-number> </license> </licenses> --> </flex-config>
备注：
1.其中${flexlib} 代表sdk的frameworks目录。
2.由于我的项目是Halo主题，所以设置<filename>${flexlib}/themes/Halo/halo.swc</filename>指定主题，
如果是spark主题，则:<filename>${flexlib}/themes/Spark/spark.css</filename>。
最后：编写编译批处理
假定工程的application文件位于D:/project/src/test.mxml，依赖swc文件位于D:/project/src/lib目录，输出目录为D:/output
那么：建立批处理文件bulid.bat
@echo off
cls
set appPath=D:/project/src
set outPath=D:/output
mxmlc -load-config flex-config.xml %appPath%/test.mxml -library-path+=%appPath%/lib -output %outPath%/test.swf