爪哇 - 阿帕奇常春藤没有正确解析依赖关系

Question

我无法通过终端用Ant编译源代码，因为尽管我发出了“Ant resolve or Ant retrieve”，但依赖项似乎没有正确解析？

下面是我的build.xml和ivy.xml

编译文件

<!-- ANT HOME ENVIRONMENT VARIABLE -->
<property name="ant.home" value="${env.ANT_HOME}" />

<!-- IVY HOME DIRECTORY -->
<property name="ivy.home" value="${ant.home}" />

<!-- IVY2 JAR DIRECTORY (REPOSITORY) -->
<property name="ivy.default.ivy.user.dir" value="${user.home}/.ivy2"/>

<!-- DOWNLOAD IVY -->
<target name="setup" description="Install ivy">
    <mkdir dir="${user.home}/.ivy2" />
    <get dest="${ivy.home}/lib/ivy.jar" src="http://search.maven.org/remotecontent?filepath=org/apache/ivy/ivy/2.3.0/ivy-2.3.0.jar"/>
</target>

<!-- RESOLVE CLASSPATHS -->
<target name="resolve" description="Use ivy to resolve classpaths">
    <ivy:resolve file="ivy.xml" />
    <ivy:report todir='target/ivy-reports' graph='false' xml='false'/>
    <ivy:cachepath pathid="ivy.path" conf="compile" />
</target>

<!-- RETRIEVE DEPENDANCIES AFTER RESOLVING-->
<target name="retrieve" depends="resolve" description="Use ivy to retrieve dependencies">
    <ivy:retrieve sync="true" type="jar" />
</target>

<!-- COMPILE PROJECT -->
<target name="compile" depends="clean, retrieve">
    <!-- Create build directory -->
    <mkdir dir="target/${ant.project.name}" />

    <!-- Compile source code -->
    <javac includeantruntime="false" srcdir="src" debug="true" destdir="target/${ant.project.name}" >
        <classpath>
            <path refid="ivy.path" />
        </classpath>
    </javac>
</target>

<!-- CLEAN TARGET DIRECTORY -->
<target name="clean">
    <delete dir="target/orderlycalls" />
    <delete dir="target/classes" />
    <delete dir="target/ivy-reports" />     
</target>

<!-- CLEAN TARGET AND IVY CATCHE -->
<target name="clean-all" depends="clean" description="Additionally purge ivy cache">
    <ivy:cleancache/>
</target>

ivy.xml

<ivy-module version="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd">

    <configurations>
        <conf name="default" visibility="public" description="The single built artifact. Nothing else"/>
        <conf name="compile" visibility="public" description="The master module and transitive dependencies"/>
        <conf name="provided" visibility="public" description="Needed for compile. Will be provided outside or war"/>
        <conf name="runtime" visibility="public" description="Not required for compile, but for runtime" extends="compile"/>
        <conf name="default" visibility="public" description="The default configuration" extends="runtime"/>
        <conf name="test" visibility="private" description="Required for testing" extends="runtime"/>
    </configurations>

    <dependencies>
        <dependency org="net.sf.trove4j" name="trove4j" rev="3.0.3" conf="provided"/>
        <dependency org="org.apache.tomcat.embed" name="tomcat-embed-core" rev="7.0.53" conf="provided"/>
    </dependencies>

</ivy-module>

当我运行“ant-compile”时，on-compiling ant抱怨它找不到作为tomcat一部分的“Servlet Context”。jar或“TObject”、“THashMap”是trove的一部分。jar和更多，尽管我正在build.xml中检索/解析jar。

我注意到的另一件事是，在我的.ivy2 /缓存//中，没有实际的jar文件。仅 xml 文件

你知道我做错了什么或根本没有做什么吗？

谢啦

Answer 1

您已经使用cachepath任务创建了一个Ant路径，使用了与“编译”配置相关联的依赖项。

<ivy:cachepath pathid="ivy.path" conf="compile" />

您的问题在于您的ivy文件，您没有在其中指定任何带有映射到“编译”配置的依赖项。这将解释为什么您的javac任务看不到任何jar。

   <configurations>
        ...
        <conf name="compile" .../>
        <conf name="provided" .../>
        ...
    </configurations>

    <dependencies>
        <dependency ... conf="provided"/>
        <dependency ... conf="provided"/>
    </dependencies>

我建议为您的每个配置创建一个显式映射，例如：

<!-- Compile dependencies --> 
<dependency org="net.sf.trove4j" name="trove4j" rev="3.0.3" conf="compile->default"/>

<!-- provided dependencies -->
<dependency org="org.apache.tomcat.embed" name="tomcat-embed-core" rev="7.0.53" conf="provided->master"/>

您唯一需要的映射是以下远程配置：

• 默认远程 jar 及其可传递依赖项
• 仅主远程罐

有关ivy如何解释远程maven模块的更多信息，请阅读以下内容：

• 如何通过常春藤将 maven 作用域映射到常春藤配置