子项目中的SBT包子项目

Question

我正在使用sbt 0.13.12，这是我的项目root |--- common |--- sub1 |--- sub2

在build.sbt文件中，我将sub1设置为common 。 如果我通过sbt project sub1 run 。 但是，当我将子项目打包为jar文件时，我运行sub1.jar文件，该错误显示sub1找不到common类。

我的目的是包装sub1.jar和sub2.jar ，并在每个jar文件中编译common代码。

-更新-
我尝试作为建议来回答 。 运行sbt assembly时遇到了这个问题：

[error] (utils/*:assembly) deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\javax.inject\\javax.inject\\jars\\javax.inject-1.jar:javax/inject/Inject.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\javax.inject\\jars\\javax.inject-2.4.0-b34.jar:javax/inject/Inject.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\javax.inject\\javax.inject\\jars\\javax.inject-1.jar:javax/inject/Named.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\javax.inject\\jars\\javax.inject-2.4.0-b34.jar:javax/inject/Named.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\javax.inject\\javax.inject\\jars\\javax.inject-1.jar:javax/inject/Provider.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\javax.inject\\jars\\javax.inject-2.4.0-b34.jar:javax/inject/Provider.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\javax.inject\\javax.inject\\jars\\javax.inject-1.jar:javax/inject/Qualifier.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\javax.inject\\jars\\javax.inject-2.4.0-b34.jar:javax/inject/Qualifier.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\javax.inject\\javax.inject\\jars\\javax.inject-1.jar:javax/inject/Scope.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\javax.inject\\jars\\javax.inject-2.4.0-b34.jar:javax/inject/Scope.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\javax.inject\\javax.inject\\jars\\javax.inject-1.jar:javax/inject/Singleton.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\javax.inject\\jars\\javax.inject-2.4.0-b34.jar:javax/inject/Singleton.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\aopalliance\\aopalliance\\jars\\aopalliance-1.0.jar:org/aopalliance/aop/Advice.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\aopalliance-repackaged\\jars\\aopalliance-repackaged-2.4.0-b34.jar:org/aopalliance/aop/Advice.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\aopalliance\\aopalliance\\jars\\aopalliance-1.0.jar:org/aopalliance/aop/AspectException.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.glassfish.hk2.external\\aopalliance-repackaged\\jars\\aopalliance-repackaged-2.4.0-b34.jar:org/aopalliance/aop/AspectException.class .... (truncated because it's too long) .... [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.hadoop\\hadoop-yarn-common\\jars\\hadoop-yarn-common-2.2.0.jar:org/apache/hadoop/yarn/factories/package-info.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.hadoop\\hadoop-yarn-api\\jars\\hadoop-yarn-api-2.2.0.jar:org/apache/hadoop/yarn/factories/package-info.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.hadoop\\hadoop-yarn-common\\jars\\hadoop-yarn-common-2.2.0.jar:org/apache/hadoop/yarn/factory/providers/package-info.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.hadoop\\hadoop-yarn-api\\jars\\hadoop-yarn-api-2.2.0.jar:org/apache/hadoop/yarn/factory/providers/package-info.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.hadoop\\hadoop-yarn-common\\jars\\hadoop-yarn-common-2.2.0.jar:org/apache/hadoop/yarn/util/package-info.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.hadoop\\hadoop-yarn-api\\jars\\hadoop-yarn-api-2.2.0.jar:org/apache/hadoop/yarn/util/package-info.class [error] deduplicate: different file contents found in the following: [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-core_2.11\\jars\\spark-core_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-launcher_2.11\\jars\\spark-launcher_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-tags_2.11\\jars\\spark-tags_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.spark-project.spark\\unused\\jars\\unused-1.0.0.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-network-common_2.11\\jars\\spark-network-common_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-network-shuffle_2.11\\jars\\spark-network-shuffle_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-unsafe_2.11\\jars\\spark-unsafe_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-sql_2.11\\jars\\spark-sql_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-sketch_2.11\\jars\\spark-sketch_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] C:\\Users\\WindowsUser\\.ivy2\\cache\\org.apache.spark\\spark-catalyst_2.11\\jars\\spark-catalyst_2.11-2.0.1.jar:org/apache/spark/unused/UnusedStubClass.class [error] Total time: 670 s, completed Oct 20, 2016 10:36:31 AM

是的！ 我搜索并遵循了以下解决方案，但无法解决新问题：

• sbt-assembly：发现重复数据删除错误
• spark + sbt-assembly：“重复数据删除：以下中找到不同的文件内容”
• SBT组装-重复数据删除错误和排除错误

Answer 1

使用此插件https://github.com/sbt/sbt-assembly可以创建包含所有依赖项的胖罐。

在这种情况下，您可以输入：

sbt
project sub1
assembly

编辑

关于重复数据删除错误，您必须为依赖项使用合并策略。 我一直在使用以下方法解决了我99％的问题：

lazy val mergeStrategy = Seq(
  assemblyMergeStrategy in assembly := {
    case PathList("javax", "servlet", xs@_*) => MergeStrategy.first
    case PathList("META-INF", "io.netty.versions.properties") => MergeStrategy.last
    case PathList(ps@_*) if ps.last endsWith ".html" => MergeStrategy.first
    case "application.conf" => MergeStrategy.concat
    case "reference.conf" => MergeStrategy.concat
    case m if m.toLowerCase.endsWith("manifest.mf") => MergeStrategy.discard
    case m if m.toLowerCase.matches("meta-inf.*\\.sf$") => MergeStrategy.discard
    case _ => MergeStrategy.first
  }
)

lazy val root = Project(
  id = "root",
  base = file(".")
) aggregate(common, database, server)

lazy val server = (project in file("server"))
  .settings(cdbServerConfig: _*)
  .settings(mergeStrategy: _*)
  .settings(libraryDependencies ++= (commonDependencies ++ akkaDependencies ++ jsonDependencies))
  .dependsOn(database)

lazy val database = (project in file("database"))
  .settings(commonSettings: _*)
  .settings(libraryDependencies ++= (commonDependencies ++ databaseDependencies))
  .dependsOn(common)

lazy val common = (project in file("common"))
  .settings(commonSettings: _*)
  .settings(libraryDependencies ++= commonDependencies)

因此，就我而言，我想打包服务器项目，该项目取决于数据库项目，而数据库项目又取决于公共项目。

使用该合并策略对我来说很好。

但是正如我所说，在99％的情况下它可以工作，但是当它不起作用时，我一直在使用以下插件：

https://github.com/jrudolph/sbt-dependency-graph

这样我就可以看到依赖关系树，看看有什么冲突。