Spark将数据写入Excel

首先，导入pom

    <dependency>
        <groupId>com.crealytics</groupId>
        <artifactId>spark-excel_2.11</artifactId>
        <version>0.11.1</version>
    </dependency>

写方法：

def savetoExcel(filePath:String,dataFrame:DataFrame): Unit ={
dataFrame.write
  .format("com.crealytics.spark.excel")
  .option("dataAddress", "'Sheet2'!A1:R500")
  .option("useHeader", "true")
  .mode("append")
  .save(filePath)

}

Sheet2 表示写到Excel的哪个sheet里面

A1：R500 表示写入范围为单元格的A1到R500