小编lpg*_*gad的帖子

我想将输出数据导入mysql数据库，但是出现以下错误，我不会将数组转换为所需的字符串类型，可以帮帮我吗？

 val Array(trainingData, testData) = msgDF.randomSplit(Array(0.9, 0.1))
    val pipeline = new Pipeline().setStages(Array(labelIndexer, word2Vec, mlpc, labelConverter))
    val model = pipeline.fit(trainingData)
    val predictionResultDF = model.transform(testData)
    val rows = predictionResultDF.select("song", "label", "predictedLabel")
    val df = rows.registerTempTable("song_classify")
    val sqlcommand = "select * from song_classify"
    val prop = new java.util.Properties
    prop.setProperty("user", "root")
    prop.setProperty("password", "123")
    sqlContext.sql(sqlcommand)
      .write.mode(SaveMode.Append).jdbc("jdbc:mysql://localhost:3306/yuncun", "song_classify", prop)
    sc.stop

这是控制台输出

Exception in thread "main" java.lang.IllegalArgumentException: Can't get JDBC type for array<string>
    at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$org$apache$spark$sql$execution$datasources$jdbc$JdbcUtils$$getJdbcType$2.apply(JdbcUtils.scala:148)
    at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$org$apache$spark$sql$execution$datasources$jdbc$JdbcUtils$$getJdbcType$2.apply(JdbcUtils.scala:148)
    at scala.Option.getOrElse(Option.scala:121)

我想在mysql数据库中存储以下数据

+---------+-----+--------------+
|     song|label|predictedLabel|
+---------+-----+--------------+
|   [????]|    1| …