整理一个ANT在J2EE项目中的应用，含预编译JSP和打包WAR/EAR挡！

首先，假设我们的项目的结构如下，相同的目录大家可以自行扩展！

${project.root}   |   +-- build/           <-- WAR/EAR档的目录   +-- classes/         <-- 编译的输出目录，与JBuilder兼容   +-- src/             <-- Java源文件目录   +-- web/             <-- WEB Content 目录   |    |   |    +--pages/       <-- JSP 文件目录   |    +--WEB-INF/     <-- web.xml 等配置文件   +-- ejb              <-- EJB Content 目录   |    |   |    +--META-INF/    <-- EJB 配置文件   +-- ear              <-- EAR Content 目录   |    |   |    +--META-INF/    <-- EAR 配置文件   |-- lib              <-- 项目所要用到的library

接下来第一步，就是要先定义好一些全局的参数，以便以后更改起来方便，风格
大家自己选择好了，我用的是如下的方式：

(1) 给出项目的目录：

<!--// project directories //--> <property name="dir.project" value="D:/Code/MyProject"/> <property name="dir.project.lib" value="${dir.project}/lib"/> <property name="dir.project.src" value="${dir.project}/src"/> <property name="dir.project.web_module" value="${dir.project}/web"/> <property name="dir.project.ejb_module" value="${dir.project}/ejb"/> <property name="dir.project.ear_module" value="${dir.project}/ear"/> <!--// compile, build and deploy directories //--> <property name="dir.project.compile" value="${dir.project}/classes"/> <property name="dir.project.compile.jspcache" value="${dir.project.compile}/jspcache"/> <property name="dir.project.build" value="${dir.project}/build"/> <!--// J2EE Container //--> <property name="dir.appserver.tomcat.home" value="D:/J2EE_HOME/AppServer/Tomcat"/> <property name="dir.appserver.oc4j.j2ee.home" value="D:/J2EE_HOME/AppServer/OC4J/j2ee/home"/>

(2) 定义Java Source的编译选项

<!--// Java compiler options //--> <property name="opt.compile.source" value="1.4"/> <property name="opt.compile.target" value="1.4"/> <property name="opt.compile.encoding" value="UTF-8"/> <property name="opt.compile.deprecation" value="on"/> <property name="opt.compile.debug" value="on"/> <property name="opt.compile.optimize" value="off"/>

(3) 如果需要 import EJB library 的话，给出下面的定义，后面会用到

<!--// EJB imported resource //--> <property name="import.ejb.report.server" value="${dir.project.lib}/AppFramework.jar"/>

(4) 给出部署WAR/EAR文件的名称：

<!--// Deployment //--> <property name="deploy.file.ejb_module" value="MyApp_EJB.jar" /> <property name="deploy.file.web_module" value="MyApp_WEB.war" /> <property name="deploy.file.ear_module" value="MyApp.ear" />

(5) 给出CLASSPATH的定义，引入相关的Library和项目编译生成的Java Classes

<path id="CLASSPATH"> <!--// Tomcat Libraries //--> <fileset dir="${dir.appserver.tomcat.home}/bin"> <include name="*.jar"/> </fileset> <fileset dir="${dir.appserver.tomcat.home}/server/lib"> <include name="*.jar"/> </fileset> <fileset dir="${dir.appserver.tomcat.home}/common/lib"> <include name="*.jar"/> </fileset> <!--// OC4J Libraries <fileset dir="${dir.appserver.oc4j.j2ee.home}"> <include name="*.jar"/> </fileset> <fileset dir="${dir.appserver.oc4j.j2ee.home}/lib"> <include name="*.jar"/> </fileset> //--> <!--// Depended Libraries //--> <pathelement location="${dir.project.lib}/abc.jar"/> <pathelement location="${dir.project.lib}/AppServer.jar"/> <pathelement location="${dir.project.lib}/AppServiceClient.jar"/> <pathelement location="${dir.project.lib}/AppUtil.jar"/> <pathelement location="${dir.project.lib}/xport.jar"/> <pathelement location="${dir.project.lib}/jaxen-full.jar"/> <pathelement location="${dir.project.lib}/jstl.jar"/> <pathelement location="${dir.project.lib}/log4j-1.2.13.jar"/> <pathelement location="${dir.project.lib}/ojdbc14.jar"/> <pathelement location="${dir.project.lib}/saxpath.jar"/> <pathelement location="${dir.project.lib}/standard.jar"/> <pathelement location="${dir.project.lib}/taglibs-log.jar"/> <!--// Project classes //--> <pathelement location="${dir.project.compile}"/> </path>

(6) 基本的clean和init的task

<target name="clean"> <delete dir="${dir.project.build}"/> <delete dir="${dir.project.compile.jspcache}"/> <delete dir="${dir.project.compile}"/> <delete dir="${dir.project.web_module}/WEB-INF/classes"/> <delete dir="${dir.project.web_module}/WEB-INF/lib"/> </target> <target name="init"> <mkdir dir="${dir.project.compile}"/> <mkdir dir="${dir.project.compile.jspcache}"/> <mkdir dir="${dir.project.web_module}/WEB-INF/classes"/> <mkdir dir="${dir.project.web_module}/WEB-INF/lib"/> <mkdir dir="${dir.project.build}"/> </target>

(7) 编译Java Source

<target name="src_compile" depends="init"> <!--// compile the Java source //--> <javac srcdir="${dir.project.src}" destdir="${dir.project.compile}" encoding="${opt.compile.encoding}" source="${opt.compile.source}" target="${opt.compile.source}" deprecation="${opt.compile.deprecation}" debug="${opt.compile.debug}" optimize="{opt.compile.optimize}" > <classpath refid="CLASSPATH"/> <include name="**/*.java"/> </javac> <!--// copy the classpath resources //--> <copy todir="${dir.project.compile}"> <fileset dir="${dir.project.src}"> <exclude name="**/*.java"/> </fileset> </copy> </target>

(8) 预编译JSP文件，可选择基于Tomcat或是Oracle Application Server

<!--// for Tomcat //--> <target name="jsp_src_generate" depends="src_compile"> <taskdef classname="org.apache.jasper.JspC" name="jasper2"> <classpath refid="CLASSPATH"/> </taskdef> <jasper2 validateXml="false" verbose="9" uriroot="${dir.project.web_module}" outputDir="${dir.project.compile.jspcache}" webXmlFragment="${dir.project.compile.jspcache}/generated-web.xml" /> </target> <!--// for OC4J 9.0.4 <target name="jsp_src_generate" depends="src_compile"> <java classname="oracle.jsp.tools.Jspc" fork="yes" failonerror="true"> <classpath refid="CLASSPATH"/> <arg line="-extend com.orionserver.http.OrionHttpJspPage"/> <arg line="-srcdir ${dir.project.compile.jspcache}"/> <arg line="-appRoot ${dir.project.web_module}"/> <arg line="-noCompile"/> <arg line="-debug"/> <arg line="-verbose"/> <arg line="${dir.project.web}/*.jsp"/> </java> </target> //--> <target name="jsp_src_compile"> <javac srcdir="${dir.project.compile.jspcache}" destdir="${dir.project.compile.jspcache}" encoding="${opt.compile.encoding}" source="${opt.compile.source}" target="${opt.compile.source}" deprecation="${opt.compile.deprecation}" debug="${opt.compile.debug}" optimize="{opt.compile.optimize}" > <classpath refid="CLASSPATH"/> <include name="**"/> </javac> </target> <target name="jsp_precompile" depends="src_compile, jsp_src_generate, jsp_src_compile" />

(9) 开始进行compile，make 和 build，并生成部署档案

<target name="compile" depends="src_compile, jsp_precompile" /> <!--// Build WAR file //--> <target name="make.web_module" depends="compile"> <war destfile="${dir.project.build}/${deploy.file.web_module}" webxml="${dir.project.web_module}/WEB-INF/web.xml"> <fileset dir="${dir.project.web_module}" > <include name="**"/> <exclude name="WEB-INF/classes/**"/> <exclude name="WEB-INF/lib/**"/> </fileset> <classes dir="${dir.project.compile}"> <include name="**"/> <exclude name="project/package/trx/**"/> <exclude name="jspcache/**"/> </classes> <lib dir="${dir.project.lib}"> <include name="AppUtil.jar"/> <include name="AppClient.jar"/> </lib> </war> </target> <!--// Build EJB Jar file //--> <target name="make.ejb_module" depends="src_compile"> <jar destfile="${dir.project.build}/${deploy.file.ejb_module}"> <zipgroupfileset dir="${dir.project.lib}"> <include name="AppServer.jar"/> </zipgroupfileset> <fileset dir="${dir.project.ejb_module}"> <include name="**"/> </fileset> <fileset dir="${dir.project.compile}"> <include name="**"/> <exclude name="project/package/controller/**"/> <exclude name="jspcache/**"/> </fileset> </jar> </target> <!--// Build EAR file //--> <target name="make.ear_module" depends="compile, make.web_module, make.ejb_module"> <ear destfile="${dir.project.build}/${deploy.file.ear_module}" appxml="${dir.project.ear_module}/META-INF/application.xml"> <fileset dir="${dir.project.build}"> <include name="${deploy.file.web_module}"/> <include name="${deploy.file.ejb_module}"/> </fileset> </ear> </target> <target name="make" depends="init, compile, make.web_module, make.ejb_module, make.ear_module" /> <target name="build" depends="clean, init, make" />

好了, 把上面的内容综合起来, 就可以用ant build命令来编译了！