Polish拥有着强大的预编译命令，用它可以很方便的去打包资源和分离代码。
1.配置：
第一步解压缩最好放到根目录下，无需安装。
第二步将xml的解析文件copy到工程目录下。
第三步在xml上单击右键选择-打开方式-ant构建。
就是这么简单。
2.介绍xml
下面是一个例子，在这个xml下填写jad,和资源的目录。很简单，相信大家都能看懂。
<!-- This file controls the build process. -->
<!-- The most important target is the j2mepolish-target, -->
<!-- which controls for what devices the application should -->
<!-- be created and so on. -->
<!-- -->
<!-- Important: when you have no Wireless Toolkit installed -->
<!-- you need to define the "preverify"-attribute -->
<!-- of the <build>-element of the J2ME Polish task. -->
<!-- -->
<!-- When you call Ant from the command-line, you can -->
<!-- call "ant test j2mepolish" to skip the obfuscation -->
<!-- and to build the example for fewer handsets. -->
<!-- The default target builds and obfuscates the example. -->
<!-- -->
<!-- The full documentation can be found at -->
<!-- http://www.j2mepolish.org -->
<!-- -->
<!-- Have fun! -->
<project
name="SC"
default="j2mepolish">
<!-- The wtk.home property should point to the directory -->
<!-- containing the Wireless Toolkit. -->
<propertyname="wtk.home"value="C:\WTK22"/>
<!-- The polish.home property should point to the directory -->
<!-- containing the J2ME Polish installation. -->
<propertyname="polish.home"value="C:\J2ME-Polish"/>
<!-- The siemens.home, nokia.home and motorola.home- -->
<!-- properties can be necessary when their emulators -->
<!-- should be started. -->
<!-- The directory which contains the Siemens-SMTK
<property name="siemens.home" value="C:\siemens" />
-->
<!-- The directory which contains the Nokia-emulators
<property name="nokia.home" value="C:\Nokia" />
-->
<!-- The path to the Sony-Ericsson SDK
<property name="sony-ericsson.home" value="C:\SonyEricsson\J2ME_SDK" />
-->
<!-- The directory which contains the Motorola-emulators
<property name="motorola.home" value="C:\Program Files\Motorola\SDK v4.3 for J2ME" />
-->
<!-- Definition of the J2ME Polish task: -->
<taskdefname="j2mepolish"
classname="de.enough.polish.ant.PolishTask"
classpath="${polish.home}/import/enough-j2mepolish-build.jar:${polish.home}/import/jdom.jar:${polish.home}/import/proguard.jar:${polish.home}/yguard-lib.jar:${wtk.home}/wtklib/kenv.zip"/>
<targetname="init">
<propertyname="test"value="false"/>
<propertyname="dir.work"value="build"/>
</target>
<targetname="clean"
description="allows a clean build. You should call [ant clean] whenever you made changes to devices.xml, vendors.xml or groups.xml">
<deletedir="build"/>
<deletedir="dist"/>
</target>
<!-- In this target the J2ME Polish task is used. -->
<!-- It has 3 sections: -->
<!-- 1. The info-section defines some general information -->
<!-- 2. The deviceRequirements-section chooses the devices -->
<!-- for which the application is optimized. -->
<!-- 3. The build-section controls the actual build -->
<!-- process. -->
<targetname="j2mepolish"
depends="init"
description="This is the controller for the J2ME build process."
>
<j2mepolish>
<!-- general settings, these settings basically form the JAD-attributes. -->
<!-- Have a look at the <jad>-section for setting specialised attributes.
You can also define localized attributes in the resources/messages.txt files -->
<info
license="GPL"
name="驱魔Q传"
version="1.0"
description="单机版;Nokia_N${polish.name};动作类"
vendorName="创艺和弦"
icon="/icon.png"
jarName="ExorcismSword_NOK_N${polish.name}.jar"
/>
<deviceRequirementsunless="test">
<or>
<requirementname="Identifier"value="Nokia/7610"/>
</or>
</deviceRequirements>
<build
symbols=""
fullscreen="yes"
usePolishGui="false"
workDir="${dir.work}">
<midletclass="GhostMidlet"name="驱魔Q传"/>
<variablesincludeAntProperties="true">
<variablename="update-url"value="http://www.enough.de/update"/>
<variablename="title"value="cc"/>
</variables>
<resourcesdir="res"excludes="">
<filesetdir="res/"if="polish.identifier == Nokia/7610"/>
</resources>
<obfuscatorname="ProGuard"useDefaultPackage="true"unless="test">
</obfuscator>
<jad>
<attributename="MicroEdition-Configuration"value="CLDC-1.0"/>
<attributename="MicroEdition-Profile"value="MIDP-1.0"/>
<attributename="Media-Price"value="单次下载8元"/>
</jad>
</build>
</j2mepolish>
</target>
</project>
3.Polish语法简介：
几个例子，
关于不同屏幕大小设置变量坐标。
//#if (polish.ScreenWidth == 240)
byteoffextX=20;
inttitleNameX=25+offextX;
inttitleNameY=43+20;
intnameOffestX=33+4;
intnameOffestY=33;
intnumOffestX=23;
intnumOffestY=42+4;
intnumAllY=-5;
bytenameTranY=1;
intmidleMuX=-20+offextX;
intmidleMuY=-40+30+10;
intyoungManX=-70+offextX;
intyoungManY=-40+90+10;
integgX=-20;
integgY=-37+90+10;
intbigEggX;
intbigEggY=13-12;
//#else (polish.ScreenHeight == 220)
//# int titleNameX=25;
//# int titleNameY=43;
//# byte nameOffestX=33;
//# byte nameOffestY=33;
//# byte numOffestX=23;
//# byte numOffestY=42;
//# byte numAllY=-5;
//# byte nameTranY=1;
//# int midleMuX=-20;
//# int midleMuY=-40;
//# int youngManX=-70;
//# int youngManY=-40;
//# int eggX=-20;
//# int eggY=-37;
//# int bigEggX;
//# int bigEggY=13;
//#endif
不同按键。
//#if (polish.Vendor == Sony-Ericsson) || (polish.Vendor == Samsung) || (polish.Vendor == Nokia)
finalstaticpublicintisLeftKey=-6;
finalstaticpublicintisRightKey=-7;
//#elif (polish.Vendor == Motorola)
//# final static public int isLeftKey=-21;
//# final static public int isRightKey=-22;
//#endif
4. build失败的可能原因：
Jdk的版本1.42的可以，高版本的会出错。（可能和polish的版本有关）
Xml的修改的参数有误，如midlet的名字，是否存在的资源文件夹，wtk,polish的路径。
Polish语法有错，这个一般会在build失败的控制台下有标记。
另外混淆包的路径也要设置正确