子項目中的SBT包子項目

Question

我正在使用sbt 0.13.12，這是我的項目root |--- common |--- sub1 |--- sub2

在build.sbt文件中，我將sub1設置為common 。 如果我通過sbt project sub1 run 。 但是，當我將子項目打包為jar文件時，我運行sub1.jar文件，該錯誤顯示sub1找不到common類。

我的目的是包裝sub1.jar和sub2.jar ，並在每個jar文件中編譯common代碼。

-更新-
我嘗試作為建議來回答 。 運行sbt assembly時遇到了這個問題：

[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！ 我搜索並遵循了以下解決方案，但無法解決新問題：

• sbt-assembly：發現重復數據刪除錯誤
• spark + sbt-assembly：“重復數據刪除：以下中找到不同的文件內容”
• SBT組裝-重復數據刪除錯誤和排除錯誤

Answer 1

使用此插件https://github.com/sbt/sbt-assembly可以創建包含所有依賴項的胖罐。

在這種情況下，您可以輸入：

sbt
project sub1
assembly

編輯

關於重復數據刪除錯誤，您必須為依賴項使用合並策略。 我一直在使用以下方法解決了我99％的問題：

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，我想打包服務器項目，該項目取決於數據庫項目，而數據庫項目又取決於公共項目。

使用該合並策略對我來說很好。

但是正如我所說，在99％的情況下它可以工作，但是當它不起作用時，我一直在使用以下插件：

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

這樣我就可以看到依賴關系樹，看看有什么沖突。