Android Studio使用gradle打包jar文件脚本：

//打jar包

defSDK_BASENAME ="banner";

defSDK_VERSION ="_v1.0.0";

defsdkDestinationPath ="build";

defzipFile = file('build/intermediates/bundles/release/classes.jar')

task deleteBuild(type: Delete) {

delete sdkDestinationPath + SDK_BASENAME + SDK_VERSION +".jar"

}

task makeJar(type: Jar) {

from zipTree(zipFile)

from fileTree(dir:'src/main',includes: ['assets/**'])

baseName = SDK_BASENAME + SDK_VERSION

destinationDir = file(sdkDestinationPath)

}

makeJar.dependsOn(deleteBuild,build)

点击右侧gradle，找到other下的makeJar任务，点击执行即可生成jar文件（生成的jar包包含assert目录及里面的文件）