AndroidStudio3.6.1打包jar及AndroidStudio4.0打包jar的一系列问题及用法

//Copy类型，请在Terminal中运行gradlew makeJar
task makeJar(type: Copy) {
  //删除存在的
  delete \'build/libs/\' + jarName + \".jar\"
  //设置拷贝的文件
  from(\"build/intermediates/aar_main_jar/release\")
  //打进jar包后的文件目录,将classes.jar放入build/libs/目录下
  into(\'build/libs/\')
  //要打包的jar文件
  include(\'classes.jar\')
  //重命名
  rename(\'classes.jar\', jarName + \".jar\")
}
makeJar.dependsOn(build)

def jarName = \"utils1.0\"

//Copy类型，请在Terminal中运行gradlew makeJar
task makeJar(type: Copy) {
  //删除存在的
  delete \'build/libs/\' + jarName + \".jar\"
  //设置拷贝的文件
  from(\"build/intermediates/aar_main_jar/release\")
  //打进jar包后的文件目录,将classes.jar放入build/libs/目录下
  into(\'build/libs/\')
  //要打包的jar文件
  include(\'classes.jar\')
  //重命名
  rename(\'classes.jar\', jarName + \".jar\")
}
makeJar.dependsOn(build)

//-encoding UTF-8 -charset UTF-8
tasks.withType(JavaCompile) {
  options.encoding = \"UTF-8\"
}

// 生成jar包的sourcesJar，不需要修改。
task sourcesJar(type: Jar) {
  from android.sourceSets.main.java.srcDirs
  classifier = \'sources\'
  archiveName = jarName + \'-sources.jar\'
}

//生成jarDoc的task，不需要修改。
task javadoc(type: Javadoc) {
  failOnError false
  source = android.sourceSets.main.java.srcDirs
  options.encoding = \"UTF-8\"
  classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
  classpath += configurations.compile
}

// 生成javaDoc的jar，不需要修改。
task javadocJar(type: Jar, dependsOn: javadoc) {
  group = \'jar\'
  classifier = \'javadoc\'
  from javadoc.destinationDir
  archiveName = jarName + \'-javadoc.jar\'
}

task generateJavadoc(type: Javadoc) {
  source = android.sourceSets.main.java.srcDirs
  ext.cp = android.libraryVariants.collect { variant ->
    variant.javaCompile.classpath.files
  }
  classpath = files(ext.cp)
}
artifacts {
  archives sourcesJar
  archives javadocJar
}