Java-Apache Ivy无法正确解析依赖关系

Question

我无法通过终端用Ant编译源代码，因为尽管我发布了“ ant resolve或蚂蚁检索”，但依旧无法正确解析依赖项？

我的build.xml和ivy.xml如下

build.xml

<!-- 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>

常春藤

<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编译蚂蚁抱怨它找不到tomcat.jar的“ Servlet Context”或trove.jar的“ TObject”，“ THashMap”等，尽管事实如此。我正在检索/解析build.xml中的jar。

我注意到的另一件事是，我的.ivy2 / cache //内部没有实际的jar文件。 仅xml文件

知道我在做什么错或根本没有做什么吗？

谢谢

Answer 1

您已使用cachepath任务使用与“编译”配置关联的依赖项来创建Ant路径。

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

问题出在您的ivy文件上，在该文件中您尚未通过映射到“编译”配置来指定任何依赖项。 这可以解释为什么您的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：

• 默认的远程jar及其传递依赖项
• 仅主控远程jar

有关常春藤如何解释远程Maven模块的更多信息，请阅读以下内容：

• 常春藤如何将Maven范围映射到常春藤配置