如何向Ant项目添加依赖项

Question

我想为我的Ant项目添加依赖项；例如，我想将hibernate依赖项添加到我的项目中。

我是蚂蚁的新手。在我使用maven工具构建项目之前。在maven中，很容易将依赖项添加到pom.xml文件中。

我的build.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<project name="Demo ANT Project-1" default="run">
    <target name="run" depends="compile">
        <java classname="com.company.product.RoundTest">
        <classpath path="staging"/>
        </java>
    </target>

    <target name="compile">
        <javac includeantruntime="false" srcdir="./src" destdir="staging" />
    </target>
</project>

我想在上面的Ant xml文件中添加依赖项。

Answer 1

请注意：这个问题是6年前新提出并回答的。

首先，Ant比Maven更老，因此不包括对依赖管理的核心支持。

添加常春藤

Ivy是Ant 的依赖管理框架

http://ant.apache.org/ivy/

要实现它，你需要做两件事。首先在构建文件的顶部包含ivy任务名称空间：

<project .... xmlns:ivy="antlib:org.apache.ivy.ant">

其次，你需要将常春藤罐安装到ANT用于第三方扩展的标准位置之一：

• $ANT_HOME/lib
• $HOME/.ant/lib

我喜欢让我的构建独立，所以包括一个自动为我做这件事的目标：

<available classname="org.apache.ivy.Main" property="ivy.installed"/> 
<target name="install-ivy" description="Install ivy" unless="ivy.installed">
    <mkdir dir="${user.home}/.ant/lib"/>
    <get dest="${user.home}/.ant/lib/ivy.jar" src="http://search.maven.org/remotecontent?filepath=org/apache/ivy/ivy/2.3.0/ivy-2.3.0.jar"/>
    <fail message="Ivy has been installed. Run the build again"/>
</target>

使用常春藤

这是一个非常广泛的主题，下面是下载hibernate jar及其依赖项的一个简单示例：

<target name="resolve" depends="install-ivy" description="Use ivy to resolve classpaths">
    <ivy:cachepath pathid="compile.path">
      <dependency org="org.hibernate" name="hibernate" rev="3.2.7.ga" conf="default">
        <exclude org="javax.transaction"/>
      </dependency>
    </ivy:cachepath>
</target>

产生以下输出：

resolve:
[ivy:cachepath] :: Apache Ivy 2.3.0 - 20130110142753 :: http://ant.apache.org/ivy/ ::
[ivy:cachepath] :: loading settings :: url = jar:file:/home/mark/.ant/lib/ivy.jar!/org/apache/ivy/core/settings/ivysettings.xml
[ivy:cachepath] :: resolving dependencies :: #;working@mark
[ivy:cachepath]     confs: [default]
[ivy:cachepath]     found org.hibernate#hibernate;3.2.7.ga in public
[ivy:cachepath]     found net.sf.ehcache#ehcache;1.2.3 in public
[ivy:cachepath]     found commons-logging#commons-logging;1.0.4 in public
[ivy:cachepath]     found asm#asm-attrs;1.5.3 in public
[ivy:cachepath]     found dom4j#dom4j;1.6.1 in public
[ivy:cachepath]     found antlr#antlr;2.7.6 in public
[ivy:cachepath]     found cglib#cglib;2.1_3 in public
[ivy:cachepath]     found asm#asm;1.5.3 in public
[ivy:cachepath]     found commons-collections#commons-collections;2.1.1 in public
[ivy:cachepath] :: resolution report :: resolve 373ms :: artifacts dl 10ms
[ivy:cachepath]     :: evicted modules:
[ivy:cachepath]     commons-collections#commons-collections;2.1 by [commons-collections#commons-collections;2.1.1] in [default]
    ---------------------------------------------------------------------
    |                  |            modules            ||   artifacts   |
    |       conf       | number| search|dwnlded|evicted|| number|dwnlded|
    ---------------------------------------------------------------------
    |      default     |   10  |   0   |   0   |   1   ||   9   |   0   |
    ---------------------------------------------------------------------

然后可以在javac任务中使用这个ivy管理的类路径

<javac includeantruntime="false" srcdir="./src" destdir="staging" classpathref="compile.path"/>

Answer 2

还是简单地将所有内容都放在一个蚂蚁目标中？

<target name="update-lib-dir">
    <property name="ivy.install.version" value="2.4.0"/>
    <property name="ivy.jar.file" value="lib-ant/ivy-${ivy.install.version}.jar"/>
    <property name="lib-ivy.dir" value="lib-ivy"/>
    <get src="https://repo1.maven.org/maven2/org/apache/ivy/ivy/${ivy.install.version}/ivy-${ivy.install.version}.jar"
        dest="${ivy.jar.file}" usetimestamp="true" />
    <taskdef resource="org/apache/ivy/ant/antlib.xml">
        <classpath>
            <pathelement location="${ivy.jar.file}"/>
        </classpath>
    </taskdef>
    <!-- define your destination directory here -->
    <retrieve pattern="${lib-ivy.dir}/[type]/[artifact]-[revision].[ext]" sync="true">
        <!-- Add all your maven dependencies here -->
        <dependency org="com.twelvemonkeys.imageio" name="imageio-jpeg" rev="3.4.2"/>
        <dependency org="com.twelvemonkeys.imageio" name="imageio-tiff" rev="3.4.2"/>
    </retrieve>
</target>

注意：之前创建您的ivy库目录。在本例中，您应该至少有一个名为lib-ant的目录。

希望它能有所帮助：o）