dependencies {
    compile project(":")
    // https://mvnrepository.com/artifact/org.mongodb/mongo-java-driver
    compile group: 'org.mongodb', name: 'mongo-java-driver', version: '3.12.1'
    // 数据库与序列化部分可选
    api group: 'org.jetbrains.kotlin', name: 'kotlin-reflect', version: kotlinVersion
}