blocks|key|1798904|text|试一试|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1798905|<javac>
(...>
<exclude+name="${src.dir}/com/foo/bar/quux/dontwant/*"+/>
(...)
</javac>|code-block|syntax|javascript|1798906|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try 

<pre><code>&lt;javac&gt;
(...&gt;
&lt;exclude name="${src.dir}/com/foo/bar/quux/dontwant/*" /&gt;
(...)
&lt;/javac&gt;
</code></pre>

blocks|key|2012687|text|其余的我不太确定，但是<exclude/>嵌套元素应该可以在Javac任务中工作。向下看第六个example。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2012688|附录：中讨论了模式，包括**表示法。|2012689|<target+name="compile.baz"+depends="init">
++++<javac+destdir="${build.dir}/classes"+debug="on">
++++++++<compilerarg+value="-Xlint:deprecation"/>
++++++++<src>
++++++++++++<pathelement+location="${src.dir}/com/foo/bar/baz/"+/>
++++++++++++<pathelement+location="${src.dir}/com/foo/bar/quux/"+/>
++++++++</src>
++++++++<exclude+name="${src.dir}/com/foo/bar/quux/dontwant/**"/>
++++++++...
++++</javac>
++++...
</target>|code-block|syntax|javascript|2012690|entityMap|0|LINK|mutability|MUTABLE|url|http://ant.apache.org/manual/Tasks/javac.html|1^0|B|A|U|5|U|5|0|1B|7|1|0|C|2|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@$9|10|A|11|1|12]|$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|19|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|T]]]]

I'm not sure about the rest, but the <code>&lt;exclude/&gt;</code> nested element should work in the <a href="http://ant.apache.org/manual/Tasks/javac.html" rel="nofollow noreferrer"><code>Javac</code></a> task. See the sixth <a href="http://ant.apache.org/manual/Tasks/javac.html" rel="nofollow noreferrer">example</a> down.

Addendum: Patterns, including the <code>**</code> notation, are discussed in <a href="http://ant.apache.org/manual/dirtasks.html" rel="nofollow noreferrer">Directory-based Tasks</a>.

<pre><code>&lt;target name="compile.baz" depends="init"&gt;
 &lt;javac destdir="${build.dir}/classes" debug="on"&gt;
 &lt;compilerarg value="-Xlint:deprecation"/&gt;
 &lt;src&gt;
 &lt;pathelement location="${src.dir}/com/foo/bar/baz/" /&gt;
 &lt;pathelement location="${src.dir}/com/foo/bar/quux/" /&gt;
 &lt;/src&gt;
 &lt;exclude name="${src.dir}/com/foo/bar/quux/dontwant/**"/&gt;
 ...
 &lt;/javac&gt;
 ...
&lt;/target&gt;
</code></pre>

blocks|key|1799028|text|一些人建议使用<exclude>。这不符合指定我的任务的方式。垃圾神的回答链接到了the+sixth+example+on+this+page，它给了我一个关于如何重构我的任务规范的想法。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1799029|看起来我的问题与我指定源文件的方式有关。而不是在<src>中使用<pathelement>元素，如下所示：|1799030|<src>
+++<pathelement+location="${src.dir}/com/foo/bar/baz/"+/>
+++<pathelement+location="${src.dir}/com/foo/bar/quux/"+/>
</src>|code-block|syntax|javascript|1799031|我切换到使用带有路径的单个<src>，然后使用一组<include>元素，如下所示：|1799032|<src+path="${src.dir}"+/>
<include+name="com/foo/bar/baz/**"+/>
<include+name="com/foo/bar/quux/**"+/>|1799033|这似乎在功能上是相同的，但与<exclude>的使用是兼容的|1799034|<exclude+name="${src.dir}/com/foo/bar/quux/dontwant/**"/>|1799035|(实际上，我很惊讶的是，最初的东西居然还能用。)|1799036|entityMap|0|LINK|mutability|MUTABLE|url|http://ant.apache.org/manual/Tasks/javac.html^0|7|9|15|U|0|0|O|5|W|D|0|0|D|5|P|9|0|0|E|9|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@$9|17|A|18|1|19]]|E|$]]|$1|F|3|G|5|6|7|1A|8|@$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1F|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1G|8|@$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|1L|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1M|8|@$9|1N|A|1O|B|C]]|D|@]|E|$]]|$1|S|3|T|5|J|7|1P|8|@]|D|@]|E|$K|L]]|$1|U|3|V|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|W|3|-4|5|6|7|1R|8|@]|D|@]|E|$]]]|X|$Y|$5|Z|10|11|E|$12|13]]]]

A couple of people suggested using <code>&lt;exclude&gt;</code>. This didn't work with the way my task was specified. trashgod's answer linked to <a href="http://ant.apache.org/manual/Tasks/javac.html" rel="noreferrer">the sixth example on this page</a> which gave me an idea of how to restructure my task specification.

It looks like my problem was related to the way I was specifying the source files. Rather than using <code>&lt;pathelement&gt;</code> elements in a <code>&lt;src&gt;</code>, like this:

<pre><code>&lt;src&gt;
 &lt;pathelement location="${src.dir}/com/foo/bar/baz/" /&gt;
 &lt;pathelement location="${src.dir}/com/foo/bar/quux/" /&gt;
&lt;/src&gt;
</code></pre>

I switched to using a single <code>&lt;src&gt;</code> with a path and then a set of <code>&lt;include&gt;</code> elements, like this:

<pre><code>&lt;src path="${src.dir}" /&gt;
&lt;include name="com/foo/bar/baz/**" /&gt;
&lt;include name="com/foo/bar/quux/**" /&gt;
</code></pre>

This appears to be functionally identical, but is compatible with the use of <code>&lt;exclude&gt;</code>:

<pre><code>&lt;exclude name="${src.dir}/com/foo/bar/quux/dontwant/**"/&gt;
</code></pre>

(Actually, I'm surprised that what was there in the first place worked at all.)

blocks|key|2012811|text|{source.dir}下的try文件夹"test“不会被编译|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2012812|<javac+destdir="${compile.dir}"++...>
+++<src+path="${source.dir}"+/>
+++<exclude+name="test/**"/>
</javac>|code-block|syntax|javascript|2012813|entityMap^0|0|C|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

try 
folder "test" under <code>{source.dir}</code> would not be complied

<pre><code>&lt;javac destdir="${compile.dir}" ...&gt;
 &lt;src path="${source.dir}" /&gt;
 &lt;exclude name="test/**"/&gt;
&lt;/javac&gt;
</code></pre>

blocks|key|1799081|text|如果您正在尝试排除Java类，但Ant仍在尝试编译它们，那么这可能是由于您的代码中引用了这些类。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1799082|如果A.java引用了B.java，而您试图排除B.java，那么编译A.java也需要编译B.java。|1799083|这是在Java中使用接口的原因之一，因此您可以编译接口，而无需编译实现。|1799084|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

If you are trying to exclude Java classes but Ant is still trying to compile them then this may be due to references to these classes in your code.

If A.java has a reference to B.java and you try to exclude B.java then compiling A.java will require that B.java is compiled too.

This is one reason for interfaces in Java, so you can compile the interface without needing to compile the implementations.

I have the following in my build.xml:

<pre><code>&lt;target name="compile.baz" depends="init"&gt;
 &lt;javac destdir="${build.dir}/classes" debug="on"&gt;
 &lt;compilerarg value="-Xlint:deprecation"/&gt;
 &lt;src&gt;
 &lt;pathelement location="${src.dir}/com/foo/bar/baz/" /&gt;
 &lt;pathelement location="${src.dir}/com/foo/bar/quux/" /&gt;
 &lt;!-- Need to exclude ${src.dir}/com/foo/bar/quux/dontwant/ --&gt;
 &lt;/src&gt;
 &lt;classpath refid="classpath.jars" /&gt;
 &lt;/javac&gt;
 ...
&lt;/target&gt;
</code></pre>

This mostly does what I want, except that (as the comment says) I do not want the files in 
 <code>${src.dir}/com/foo/bar/quux/dontwant/</code> to be compiled by this task (but I do want everything else under <code>${src.dir}/com/foo/bar/quux/</code> to be compiled in this task).

I'm a complete ant n00b, and the documentation hasn't been much help to me. I see several places where it says there are various exclude/excludes elements/attributes, but every variation I can think of either has no effect or results in an error like "blah doesn't support the 'exclude' attribute".

How can I exclude sources in a javac task in ant?

Java

我的build.xml中有以下内容：<target name="compile.baz" depends="init"> <javac destdir="${build.dir}/classes" debug="on"> <compilerarg value="-Xlint:deprecation"/> ...

问如何在ant中排除javac任务中的源代码？
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