如何与预期的JDK版本一起指定sbt依赖项

Question

如何在Build.sbt中指定依赖项的JDK版本

我在Aspose库中遇到了这样的情况，其中文件名是用JDK版本(即aspose-email-4.8.0-jdk17.jar而不是普通的aspose-email-4.8.0.jar )发布的。因此，通常指定依赖项。

"com.aspose" % "aspose-email" % "4.8.0"

当错误的sbt试图下载一个不存在的文件时，将导致SBT发出以下错误的抱怨：

[warn]  [FAILED     ] com.aspose#aspose-email;4.8.0!aspose-email.jar:  (0ms)
[warn] ==== local: tried
[warn]   /Users/developer/.ivy2/local/com.aspose/aspose-email/4.8.0/jars/aspose-email.jar
[warn] ==== public: tried
[warn]   https://repo1.maven.org/maven2/com/aspose/aspose-email/4.8.0/aspose-email-4.8.0.jar
[warn] ==== Aspose: tried
[warn]   http://maven.aspose.com/artifactory/simple/ext-release-local/com/aspose/aspose-email/4.8.0/aspose-email-4.8.0.jar
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::              FAILED DOWNLOADS            ::
[warn]  :: ^ see resolution messages for details  ^ ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: com.aspose#aspose-email;4.8.0!aspose-email.jar
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
sbt.ResolveException: download failed: com.aspose#aspose-email;4.8.0!aspose-email.jar

然后，我发现将版本附加到版本号中可能会修复它：

"com.aspose" % "aspose-email" % "4.8.0-jdk17"

不幸的是，它会导致另一个错误，因为SBT认为POM文件位于aspose-email-4.8.0-jdk17.pom，而应该是aspose-email-4.8.0.pom。

[info] Resolving com.aspose#aspose-email;4.8.0-jdk17 ...
[warn]  module not found: com.aspose#aspose-email;4.8.0-jdk17
[warn] ==== local: tried
[warn]   /Users/ganeshwara/.ivy2/local/com.aspose/aspose-email/4.8.0-jdk17/ivys/ivy.xml
[warn] ==== public: tried
[warn]   https://repo1.maven.org/maven2/com/aspose/aspose-email/4.8.0-jdk17/aspose-email-4.8.0-jdk17.pom
[warn] ==== Aspose: tried
[warn]   http://maven.aspose.com/artifactory/simple/ext-release-local/com/aspose/aspose-email/4.8.0-jdk17/aspose-email-4.8.0-jdk17.pom
[info] Resolving net.sf.proguard#proguard-base;5.1 ...
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: com.aspose#aspose-email;4.8.0-jdk17: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn] 
[warn]  Note: Unresolved dependencies path:
[warn]    com.aspose:aspose-email:4.8.0-jdk17 (/Users/ganeshwara/DropMyEmail/backup-server/project/Build.scala#L290)
[warn]      +- Dropmysite:common_2.11:1.0-296020c84e74fa1fd65cd5361b563519ff9c4a5d
sbt.ResolveException: unresolved dependency: com.aspose#aspose-email;4.8.0-jdk17: not found

我认为，如果您查看存储库，就会发现问题是由于不同的命名约定造成的--在这种情况下，jarfile是用预期的JDK版本进行修改的，而POM文件则不是。

Answer 1

在googling之后，我发现Maven实际上有一个可选的额外坐标，分类器，它就在版本号(来源)后面。

要在sbt中使用它，应该将依赖项定义为

"com.aspose" % "aspose-email" % "4.8.0" classifier "jdk17"

(来源)