1.在项目根目录下新建toJar.gralde文件：
def jarName = "lxlibs1.0"
task deleteOldJar(type: Delete) {
//删除旧包
delete 'build/libs/' + jarName + ".jar"
}
//Copy类型，请在Terminal中运行gradlew makeJar
task makeJar(type: Copy) {
//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(deleteOldJar, build)
// 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'
}
//-encoding UTF-8 -charset UTF-8
tasks.withType(JavaCompile) {
options.encoding = "UTF-8"
options.compilerArgs << "-Xlint:unchecked"
}
artifacts {
archives sourcesJar
// archives javadocJar
}
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2.Termminal执行命令：
gradlew makeJar
打包完生成jar包
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