blocks|key|1791314|text|你能更具体地说明你正在尝试做什么，以及你是如何尝试去做的吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1791315|如果您尝试使用<exec>任务调用该程序，则可以执行以下操作：|offset|length|style|CODE|1791316|<exec+executable="name-of-executable">
++<arg+value="arg0"/>
++<arg+value="arg1"/>
</exec>|code-block|syntax|javascript|1791317|entityMap^0|0|7|6|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Can you be a bit more specific about what you're trying to do and how you're trying to do it?

If you're attempting to invoke the program using the <code>&lt;exec&gt;</code> task you might do the following:

<pre><code>&lt;exec executable="name-of-executable"&gt;
 &lt;arg value="arg0"/&gt;
 &lt;arg value="arg1"/&gt;
&lt;/exec&gt;
</code></pre>

blocks|key|1791330|text|扩展了Richard+Cook的答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1791331|下面是运行任何程序(包括但不限于ant程序)的Java任务：|style|CODE|1791332|<target+name="run">
+++<exec+executable="name-of-executable">
++++++<arg+value="${arg0}"/>
++++++<arg+value="${arg1}"/>
+++</exec>
</target>|code-block|syntax|javascript|1791333|下面是从.jar文件运行Java程序的任务：|1791334|<target+name="run-java">
+++<java+jar="path+for+jar">
++++++<arg+value="${arg0}"/>
++++++<arg+value="${arg1}"/>
+++</java>
</target>|1791335|您可以像这样从命令行调用这两种方法：|1791336|ant+-Darg0=Hello+-Darg1=World+run|1791337|确保使用-Darg语法；如果您运行以下命令：|1791338|ant+run+arg0+arg1|1791339|然后，ant将尝试运行目标arg0和arg1。|1791340|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/3730880/use-ant-for-running-program-with-command-line-arguments/3730898#3730898^0|3|C|0|0|G|3|0|0|4|4|0|0|0|0|4|5|0|0|3|3|D|4|I|4|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@$A|19|B|1A|1|1B]]|C|$]]|$1|D|3|E|5|6|7|1C|8|@$A|1D|B|1E|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|1F|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1G|8|@$A|1H|B|1I|F|G]]|9|@]|C|$]]|$1|O|3|P|5|J|7|1J|8|@]|9|@]|C|$K|L]]|$1|Q|3|R|5|6|7|1K|8|@]|9|@]|C|$]]|$1|S|3|T|5|J|7|1L|8|@]|9|@]|C|$K|L]]|$1|U|3|V|5|6|7|1M|8|@$A|1N|B|1O|F|G]]|9|@]|C|$]]|$1|W|3|X|5|J|7|1P|8|@]|9|@]|C|$K|L]]|$1|Y|3|Z|5|6|7|1Q|8|@$A|1R|B|1S|F|G]|$A|1T|B|1U|F|G]|$A|1V|B|1W|F|G]]|9|@]|C|$]]|$1|10|3|-4|5|6|7|1X|8|@]|9|@]|C|$]]]|11|$12|$5|13|14|15|C|$16|17]]]]

Extending <a href="https://stackoverflow.com/questions/3730880/use-ant-for-running-program-with-command-line-arguments/3730898#3730898">Richard Cook</a>'s answer.

Here's the <code>ant</code> task to run any program (including, but not limited to Java programs):

<pre><code>&lt;target name="run"&gt;
 &lt;exec executable="name-of-executable"&gt;
 &lt;arg value="${arg0}"/&gt;
 &lt;arg value="${arg1}"/&gt;
 &lt;/exec&gt;
&lt;/target&gt;
</code></pre>

Here's the task to run a Java program from a <code>.jar</code> file:

<pre><code>&lt;target name="run-java"&gt;
 &lt;java jar="path for jar"&gt;
 &lt;arg value="${arg0}"/&gt;
 &lt;arg value="${arg1}"/&gt;
 &lt;/java&gt;
&lt;/target&gt;
</code></pre>

You can invoke either from the command line like this:

<pre><code>ant -Darg0=Hello -Darg1=World run
</code></pre>

Make sure to use the <code>-Darg</code> syntax; if you ran this:

<pre><code>ant run arg0 arg1
</code></pre>

then <code>ant</code> would try to run targets <code>arg0</code> and <code>arg1</code>.

blocks|key|2004975|text|将参数传递到构建中的唯一有效机制是使用Java属性：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2004976|ant+-Done=1+-Dtwo=2|code-block|syntax|javascript|2004977|以下示例演示了如何检查并确保预期的参数已传递到脚本中|2004978|<project+name="check"+default="build">

++++<condition+property="params.set">
++++++++<and>
++++++++++++<isset+property="one"/>
++++++++++++<isset+property="two"/>
++++++++</and>
++++</condition>

++++<target+name="check">
++++++++<fail+unless="params.set">
++++++++Must+specify+the+parameters:+one,+two
++++++++</fail>
++++</target>

++++<target+name="build"+depends="check">
++++++++<echo>
++++++++one+=+${one}
++++++++two+=+${two}
++++++++</echo>
++++</target>

</project>|2004979|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The only effective mechanism for passing parameters into a build is to use Java properties:

<pre><code>ant -Done=1 -Dtwo=2
</code></pre>

The following example demonstrates how you can check and ensure the expected parameters have been passed into the script

<pre><code>&lt;project name="check" default="build"&gt;

 &lt;condition property="params.set"&gt;
 &lt;and&gt;
 &lt;isset property="one"/&gt;
 &lt;isset property="two"/&gt;
 &lt;/and&gt;
 &lt;/condition&gt;

 &lt;target name="check"&gt;
 &lt;fail unless="params.set"&gt;
 Must specify the parameters: one, two
 &lt;/fail&gt;
 &lt;/target&gt;

 &lt;target name="build" depends="check"&gt;
 &lt;echo&gt;
 one = ${one}
 two = ${two}
 &lt;/echo&gt;
 &lt;/target&gt;

&lt;/project&gt;
</code></pre>

blocks|key|2004995|text|如果您不想为每个可能的参数处理单独的属性，我建议您使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2004996|<arg+line="${args}"/>|code-block|syntax|javascript|2004997|您可以使用具有unless属性的特定目标来检查是否未设置该属性，并在其中执行以下操作：|offset|length|style|CODE|2004998|<input+message="Type+the+desired+command+line+arguments:"+addProperty="args"/>|2004999|将所有这些放在一起可以得到以下结果：|2005000|<target+name="run"+depends="compile,+input-runargs"+description="run+the+project">
++
++<java+classname="Main">
++++<arg+line="${args}"/>
++</java>
</target>
<target+name="input-runargs"+unless="args"+description="prompts+for+command+line+arguments+if+necessary">
++<input+addProperty="args"+message="Type+the+desired+command+line+arguments:"/>
</target>|2005001|您可以按如下方式使用它：|2005002|ant
ant+run
ant+run+-Dargs='--help'|2005003|前两个命令将提示输入命令行参数，而后两个命令则不会。|2005004|entityMap^0|0|0|7|6|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@$I|13|J|14|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|18|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|19|8|@]|9|@]|A|$E|F]]|$1|W|3|X|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|Z|$]]

If you do not want to handle separate properties for each possible argument, I suggest you'd use:

<pre class="lang-xml prettyprint-override"><code>&lt;arg line="${args}"/&gt;
</code></pre>

You can check if the property is not set using a specific target with an <code>unless</code> attribute and inside do:

<pre class="lang-xml prettyprint-override"><code>&lt;input message="Type the desired command line arguments:" addProperty="args"/&gt;
</code></pre>

Putting it all together gives:

<pre class="lang-xml prettyprint-override"><code>&lt;target name="run" depends="compile, input-runargs" description="run the project"&gt;
 &lt;!-- You can use exec here, depending on your needs --&gt;
 &lt;java classname="Main"&gt;
 &lt;arg line="${args}"/&gt;
 &lt;/java&gt;
&lt;/target&gt;
&lt;target name="input-runargs" unless="args" description="prompts for command line arguments if necessary"&gt;
 &lt;input addProperty="args" message="Type the desired command line arguments:"/&gt;
&lt;/target&gt;
</code></pre>

You can use it as follows:

<pre class="lang-sh prettyprint-override"><code>ant
ant run
ant run -Dargs='--help'
</code></pre>

The first two commands will prompt for the command-line arguments, whereas the latter won't.

blocks|key|1791412|text|我最后做的是创建一个批处理文件，从ant文件中提取CLASSPATH，然后使用以下命令直接运行java：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1791413|在我的build.xml中：|1791414|<target+name="printclasspath">
++++<pathconvert+property="classpathProp"+refid="project.class.path"/>
++++<echo>${classpathProp}</echo>
</target>|code-block|syntax|javascript|1791415|在另一个名为‘run.sh’的脚本中：|1791416|export+CLASSPATH=$(ant+-q+printclasspath+%7C+grep+echo+%7C+cut+-d+\++-f+7):build
java+"$@"|1791417|它不再是跨平台的，但至少它相对容易使用，并且可以提供一个与run.sh具有相同功能的.bat文件。这是一个非常短的批处理脚本。这不同于将整个构建迁移到特定于平台的批处理文件。|1791418|我认为这是一个遗憾，在ant中没有一些选项，您可以这样做：|1791419|ant+--+arg1+arg2+arg3|1791420|mpirun使用这种语法；我认为ssh也可以使用这种语法。|1791421|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|12|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|13|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|14|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|V|$]]

What I did in the end is make a batch file to extract the CLASSPATH from the ant file, then run java directly using this:

In my build.xml:

<pre><code>&lt;target name="printclasspath"&gt;
 &lt;pathconvert property="classpathProp" refid="project.class.path"/&gt;
 &lt;echo&gt;${classpathProp}&lt;/echo&gt;
&lt;/target&gt;
</code></pre>

In another script called 'run.sh':

<pre><code>export CLASSPATH=$(ant -q printclasspath | grep echo | cut -d \ -f 7):build
java "$@"
</code></pre>

It's no longer cross-platform, but at least it's relatively easy to use, and one could provide a .bat file that does the same as the run.sh. It's a very short batch script. It's not like migrating the entire build to platform-specific batch files.

I think it's a shame there's not some option in ant whereby you could do something like:

<pre><code>ant -- arg1 arg2 arg3
</code></pre>

mpirun uses this type of syntax; ssh also can use this syntax I think.

My program getting command line arguments. How can I pass it when I use Ant?

Use Ant for running program with command line arguments

Java

我的程序获取命令行参数。当我使用Ant时，如何传递它？

问使用Ant运行带有命令行参数的程序
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