Ant - 使用命令行参数

Ant 可以轻松读取命令行参数以将数据传递给它的任务。

命令行参数选项

ant [options] [target [target2 [target3] ...]]
Options:
   -help,          -h              print this message and exit
   -projecthelp,   -p              print project help information and exit
   -version                        print the version information and exit
   -diagnostics                    print information that might be helpful to diagnose or report problems and exit
   -quiet,         -q              be extra quiet
   -silent,        -S              print nothing but task outputs and build failures
   -verbose,       -v              be extra verbose
   -debug,         -d              print debugging information
   -emacs,         -e              produce logging information without adornments
   -lib          <path>            specifies a path to search for jars and classes
   -logfile      <file>            use given file for log
   -l            <file>                      ''
   -logger       <classname>       the class which is to perform logging
   -listener     <classname>       add an instance of class as a project listener
   -noinput                              do not allow interactive input
   -buildfile    <file>            use given buildfile
   -file         <file>                      ''
   -f            <file>                      ''
   -D            <property>=<value>   use value for given property
   -keep-going,    -k              execute all targets that do not depend on failed target(s)
   -propertyfile <name>            load all properties from file with -D properties taking precedence
   -inputhandler <class>           the class which will handle input requests
   -find         <file>            (s)earch for buildfile towards the root of
   -s            <file>            the filesystem and use it
   -nice         number            A niceness value for the main thread:1 (lowest) to 10 (highest); 5  is the default
   -nouserlib                      Run ant without using the jar files from ${user.home}/.ant/lib
   -noclasspath                    Run ant without using CLASSPATH
   -autoproxy                      Java 5+ : use the OS proxies
   -main         <class>           override Ant's normal entry point

我们将使用 -Property 将变量传递给构建任务。

示例

用 text1.txt 文件创建一个 src 文件夹，其内容如下 −

This is a sample text written in 2021.

使用以下内容创建 build.xml −

<?xml version="1.0"?>
<project name="sample" basedir="." default="copy">
   <target name="copy">
      <copy todir="${dest.dir}" filtering="true">
		<fileset dir="${src.dir}"/>
      </copy>
   </target>
</project>

输出

这里我们使用 src.dir 和 dest.dir 属性而不定义它们。 我们将使用命令行参数传递它们。在上述构建文件上运行 Ant 会产生以下输出 −

F:\tutorialspoint\ant>ant -Dsrc.dir=src -Ddest.dir=build
Buildfile: F:\tutorialspoint\ant\build.xml

copy:
   [copy] Copying 1 file to F:\tutorialspoint\ant\build
BUILD SUCCESSFUL
Total time: 0 seconds

F:\tutorialspoint\ant>

V验证复制文件的内容到构建文件夹。

This is a sample text written in 2021.