ant [options] [target [target2 [target3] ...]]
Options:
-help print this message
-projecthelp print project help information
-version print the version information and exit
-quiet be extra quiet
-verbose be extra verbose
-debug print debugging information
-emacs produce logging information without adornments
-logfile file use given file for log output
-logger classname the class that is to perform logging
-listener classname add an instance of class as a project listener
-buildfile file use specified buildfile
-find file search for buildfile towards the root of the filesystem and use the first one found
-Dproperty=value set property to value
例子
ant
使用当前目录下的build.xml运行Ant，执行缺省的target。
ant -buildfile test.xml
使用当前目录下的test.xml运行Ant，执行缺省的target。
ant -buildfile test.xml dist
使用当前目录下的test.xml运行Ant，执行一个叫做dist的target。
ant -buildfile test.xml -Dbuild=build/classes dist
使用当前目录下的test.xml运行Ant，执行一个叫做dist的target，
并设定build属性的值为build/classes。
文件
在Unix上，Ant的执行脚本在做任何事之前都会source（读并计算值）~/.antrc 文件；在Windows上，Ant的批处理文件会在开始时调用%HOME%\antrc_pre.bat，在结束时调用%HOME%\antrc_post.bat。你可以用这些文件配置或取消一些只有在运行Ant时才需要的环境变量。看下面的例子。
环境变量
包裹脚本（wrapper scripts）使用下面的环境变量（如果有的话）：
JAVACMD Java可执行文件的绝对路径。用这个值可以指定一个不同于JAVA_HOME/bin/java(.exe)的JVM。
ANT_OPTS 传递给JVM的命令行变量－例如，你可以定义属性或设定Java堆的最大值
手工运行Ant
如果你自己动手安装（DIY）Ant，你可以用下面的命令启动Ant:
java -Dant.home=c:\ant org.apache.tools.ant.Main [options] [target]
这个命令与前面的ant命令一样。选项和target也和用ant命令时一样。这个例子假定你的CLASSPATH包含:
ant.jar
jars/classes for your XML parser
the JDK's required jar/zip files
build.xml 配置文件(from
)
任务组(tasks)
一项javac任务
...
一项其它任务
...
说明:
Projects
三个属性(from
)：
Attribute Description Required
name the name of the project. No
default the default target to use when no target is supplied. Yes.
basedir the base directory from which all path calculations are done. This attribute might be overridden by setting the "basedir" property beforehand. When this is done, it must be omitted in the project tag. If neither the attribute nor the property have been set, the parent directory of the buildfile will be used.
Targets
信赖关系
D信赖于C信赖于B信赖于A，所以
执行顺序A - > B -> C - >D
属性(from
):Attribute Description Required
name the name of the target. Yes
depends a comma-separated list of names of targets on which this target depends. No
if the name of the property that must be set in order for this target to execute. No
unless the name of the property that must not be set in order for this target to execute. No
description a short description of this target's function. No
Properties
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