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使用这种方法，我可以成功地解决（但不检索实际的 jars）库的所有依赖关系，当它的组织、名称和修订被给出时，所有这些都使用 Apache Ivy 以编程方式。

在解析过程中，它解析给定库的 POM 并在指定的情况下找到父 POM，并且 Ivy 的 POM 解析器总是尝试解析源和 javadoc，这对于父 POM 通常不存在。

问题是，当向我们的本地工件查询一个不存在的 jar 的 URL 时，刷新它的缓存需要 2~3 秒，当我有许多具有父 POM 的传递依赖项时，总依赖项解析时间加起来几十分钟。

例如，以下是我尝试解析 Google Guava 17.0 时收到的日志消息：

:: loading settings :: url = jar:file:.ivy2/cache/org.apache.ivy/ivy/jars/ivy-2.3.0.jar!/org/apache/ivy/core/settings/ivysettings.xml
:: resolving dependencies :: com.google.guava#guava-envelope;17.0 [not transitive]
    confs: [default]
    validate = true
    refresh = false
resolving dependencies for configuration 'default'
== resolving dependencies for com.google.guava#guava-envelope;17.0 [default]
== resolving dependencies com.google.guava#guava-envelope;17.0->com.google.guava#guava;17.0 [default->master]
        tried http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0.pom
    resolver: found md file for com.google.guava#guava;17.0
        => http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0.pom (17.0)
downloading http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0.pom ...
    resolver: downloading http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0.pom
    [SUCCESSFUL ] com.google.guava#guava;17.0!guava.pom(pom.original) (58ms)
        tried http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0.pom
    resolver: found md file for com.google.guava#guava-parent;17.0
        => http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0.pom (17.0)
downloading http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0.pom ...
    resolver: downloading http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0.pom
    [SUCCESSFUL ] com.google.guava#guava-parent;17.0!guava-parent.pom(pom.original) (20ms)
    resolver: revision in cache: org.sonatype.oss#oss-parent;7
        tried http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0.jar
        tried http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0.jar
        tried http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0-sources.jar
CLIENT ERROR: Could not find resource url=http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0-sources.jar
        tried http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0-src.jar
CLIENT ERROR: Could not find resource url=http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0-src.jar
        tried http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0-javadoc.jar
CLIENT ERROR: Could not find resource url=http://artifactory/repo/com/google/guava/guava-parent/17.0/guava-parent-17.0-javadoc.jar
        tried http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0.jar
        tried http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0-sources.jar
        tried http://artifactory/repo/com/google/guava/guava/17.0/guava-17.0-javadoc.jar
    found com.google.guava#guava;17.0 in resolver
    resolved ivy file produced in cache
:: resolution report :: resolve 2593ms :: artifacts dl 0ms
    :: modules in use:
    com.google.guava#guava;17.0 from resolver in [default]
    ---------------------------------------------------------------------
    |                  |            modules            ||   artifacts   |
    |       conf       | number| search|dwnlded|evicted|| number|dwnlded|
    ---------------------------------------------------------------------
    |      default     |   1   |   1   |   1   |   0   ||   0   |   0   |
    ---------------------------------------------------------------------
    report for com.google.guava#guava-envelope;17.0 default produced in .ivy2/cantabile/com.google.guava-guava-envelope-default.xml
    resolve done (2593ms resolve - 0ms download)

您可以看到 Ivy 在尝试父 POM 的不存在-sources.jar的 , -src.jar, URL 时浪费了几秒钟。-javadoc.jar

解析父 POM 时是否有禁用此行为的选项？理想情况下，我不想.jar在解析期间向任何 s 发出 HTTP 请求。目前我需要一个编程解决方案，但如果有人知道命令行/XML 选项，那将是一个很大的帮助。

PS：我觉得用sbt解决库依赖的时候也是这样的；oss-parent解决等需要很长时间commons-parent。

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1 回答 1

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您需要指定一个配置映射，该映射排除可选依赖项和隐式依赖项（如源文件和 javadoc 文件）。

在 ivy 文件中，您可以按如下方式声明依赖项：

<dependency org="myorg" name="mymodule" rev="1.0" conf="default"/>

另一种选择是将此依赖映射声明为项目的默认值。

<dependencies defaultconfmapping="default">
  <dependency ..
  <dependency ..

请参阅以下关于如何排除源以及 ivy 如何翻译 Maven 存储库的 SO 问题：

总之，默认情况下，Maven 模块只有一个 arefact。可以存储更多（如源代码和 Javadocs），但没有列出它们的模块元数据。这就是 Ivy 执行 HTTP 请求以查看伪影是否存在的原因。更改配置映射设置应该有助于指导 ivy 做正确的事情:-)

附言

我认为这可以通过调用 DefaultDependencyDescriptor 对象的“addDependencyConfiguration”方法来完成。

于 2014-12-15T09:43:42.650 回答