1.打包所有依赖：
// 指定main函数的类
jar {
manifest
{
attributes "Main-Class": "com.baeldung.fatjar.Application" }
from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
}
}
遇到问题： Invalid signature file digest for Manifest main attributes
When using spark-submit to run a jar, you may encounter this error:
Invalid signature file digest for Manifest main attributes
The error occurs when one of the included libraries in the jar's META-INF directory has a bad signature.
Solve the error with this command:
zip -d <jar file name>.jar META-INF/*.RSA META-INF/*.DSA META-INF/*.SF