Spark读取jar包中的文件

直接附上我的示例代码：
package com.mobvoi.app.recommendation.data

import java.io.InputStream

import scala.io.Source.fromInputStream

trait AppNameData extends Serializable {
  @transient private val stream: InputStream = getClass.getResourceAsStream("/app_name.txt")

  private val appIdName = fromInputStream(stream).getLines.toArray

  /** Param for app id and app name map. */
  private[recommendation] val appIdNameMap = appIdName.map { x =>
    val str = x.split("   ")
    (str(0).trim, str(1).trim)
  }.toMap

  /** Param for app name and app id map. */
  private[recommendation] val appNameIdMap = appIdName.map { x =>
    val str = x.split("   ")
    (str(1).trim, str(0).trim)
  }.toMap
}