Gradle-来自单个项目的多个Jar [英] Gradle - Multiple Jar from single project

问题描述

上下文：要从单个项目（多个包gradle项目）创建多个可执行jar

问题：我指的是链接中提供的解决方案，这有助于在build-> libs文件夹中生成jar，但是当我尝试时执行jar不会发生任何事情

注意：即使我将包名称与java文件名相同，生成的jar也不会执行。 / p>

我还注意到生成的所有jar的文件大小是相同的。希望面临的问题是明确的

我的项目结构（说明性目的）：

  ProjectA 
 -src 
 --main 
 --- java 
 ---- pkg1 
 ----- pkgCalculator 
 ------Calculator.java 
 ----- pkgScale 
 ------Scale.java 
 ---- pkg2 
- --- pkgMusicPlayer 
 ------MusicPlayer.java 
 ----- pkgVideoPlayer 
 ------VideoPlayer.java 
-资源
 ---- fxml 
 ---- css 
 --test 
 --- java 
 ---资源
  

Gradle 文件（相关部分在下面，其余部分根据上面的链接）：

 工件{
档案jarPackage（ pkgCalculator， 1.0），
 jarPackage（ pkgScale， 1.0），
 jarPackage（ pkgMusicPlayer， 1.0），
 jarPackage（ pkgVideoPlayer， 1.0）
 
} 
  

解决方案

与@iCoder讨论之后，问题的第一部分已解决： jarPackage 函数不能按原样重用，而必须进行调整以支持通用的类/包布局：

  def jarPackage（String jarName，String className，artifactVersion）{
 if（artifactVersion == || artifactVersion == null）{
 artifactVersion = 1.0.0 
} 
返回task.create（ jar $ {jarName}，Jar）{
 baseName = jarName 
 
版本= artifactVersion 
 
 def字符串pkgName = className.substring（0，className.lastIndexOf（。））
 def字符串pkgDir = pkgName.replaceAll（ \\。， /）
 def字符串clazzName = className.substring（className.lastIndexOf（。）+1）
 from（sourceSets.main.output）{
包括 $ pkgDir // ** 
} 
 
来自{
 configuration.compile.collect {
 it.isDirectory（）吗？它：zipTree（it）
} 
} 
 
清单{
属性 Implementation-Title： $ clazzName，
 Implementation-Version ： $ version，
 Main-Class： $ pkgName。$ clazzName 
} 
} 
} 
 
工件{
档案jarPackage（ calculator， pkg1.pkcalculator.Calculator， 1.0.0）
} 
  

另一个问题仍然存在，与Gradle无关，但与JDK 11链接问题有关：@iCoder，您应该为剩下的问题（如果尚未解决）打开另一个问题。

Context: To create multiple executable jar's from a single project - multiple package gradle project

Issue: I refer to the solution provided in Link, this helps in generating the jar in build->libs folder, but when I try executing the jar nothing happens

Note: Even if I make the package name same as java file name, the generated jar does not execute.

Also I notice the file size of all the jar's generated is the same. Hope the issue faced is clear & await inputs as to where I am making a mistake.

My Project Structure (illustrative purpose):

ProjectA
-src
--main
---java
----pkg1
-----pkgCalculator         
------Calculator.java
-----pkgScale              
------Scale.java
----pkg2
-----pkgMusicPlayer        
------MusicPlayer.java
-----pkgVideoPlayer        
------VideoPlayer.java
---resources
----fxml
----css
--test
---java
---resources

Gradle file (relevant portion below, rest as per the link above ):

artifacts {
    archives jarPackage("pkgCalculator", "1.0"),
            jarPackage("pkgScale","1.0"),
            jarPackage("pkgMusicPlayer","1.0"),
            jarPackage("pkgVideoPlayer","1.0")

}

解决方案

After discussion with @iCoder, first part of the issue has been solved: the jarPackage function could not be reused "as is", and had to be adapted to support generic class/package layout:

def jarPackage(String jarName, String className, artifactVersion) {
    if (artifactVersion == "" || artifactVersion == null) {
        artifactVersion = "1.0.0"
    }
    return tasks.create("jar${jarName}", Jar) {
        baseName = jarName

        version = artifactVersion

        def String pkgName = className.substring(0, className.lastIndexOf("."))
        def String pkgDir = pkgName.replaceAll("\\.", "/")
        def String clazzName = className.substring( className.lastIndexOf(".") +1 )
        from(sourceSets.main.output) {
            include "$pkgDir//**"
        }

        from {
            configurations.compile.collect {
                it.isDirectory() ? it : zipTree(it)
            }
        }

        manifest {
            attributes "Implementation-Title": "$clazzName",
                    "Implementation-Version": "$version",
                    "Main-Class": "$pkgName.$clazzName"
        }
    }
}

artifacts {
    archives jarPackage("calculator", "pkg1.pkcalculator.Calculator" , "1.0.0")
}

Another issue remains, not related to Gradle but to JDK 11 linkage problem: @iCoder you should open another question for that remaining problem, if not fixed yet.

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