3. 加载xlsx文件到Spark DataFrame 在添加完依赖后,你可以使用以下代码来加载.xlsx文件到Spark DataFrame中: python from pyspark.sql import SparkSession # 创建SparkSession spark = SparkSession.builder \ .appName("Read Excel File") \ .getOrCreate() # 读取Excel文件 df = spark.read \ .format("com...
接下来咱们在spark sql代码中创建一个数据表,并插入两行数据: def main(args:Array[String]): Unit= { val spark = SparkSession .builder() .appName("Spark SQL basic example") .enableHiveSupport() .config("spark.some.config.option", "some-value") .getOrCreate() import spark.implicits._ spa...
# 导入必要的库frompyspark.sqlimportSparkSession# 创建SparkSessionspark=SparkSession.builder.appName("Read XLSX File").getOrCreate()# 读取xlsx文件df=spark.read.format("com.crealytics.spark.excel")\.option("header","true")\.option("inferSchema","true")\.option("dataAddress","'Sheet1'!A1:E...
val savefilePath = "D:\\学生信息详情.xlsx"val stuDetail = spark.sql(sql)stuDetail.write.format("com.crealytics.spark.excel").option("dataAddress", "'学生详情'!A1").option("useHeader", "false").option("header", "true").mode("append").save(savefilePath) 效果如下: 通关~...
String tableName2="test_table2";//读取excel表名为tableNameN+Sheet的名称readExcel(xlsxPath,tableName2); spark.sql("select * from "+tableName2+"Sheet1").show(); readExcel(xlsPath,tableName1); spark.sql("select * from "+tableName1+"Sheet1").show(); ...
同时，还介绍了如何使用 Spark Streaming 进行实时数据处理，以及如何使用 Spark SQL 进行 SQL 查询。
excel_data_df = pd.read_excel(excel_file_path) #将 Pandas DataFrame 转换为 Spark DataFrame spark_data_df = spark.createDataFrame(excel_data_df) spark_data_df.createOrReplaceTempView("biaoming") # 聚合函数 agg count sum min max df2=spark.sql("select category_name, count(category_name) as...
core"%sparkVersion,"org.apache.spark"%%"spark-sql"%sparkVersion,"org.apache.spark"%%"spark-mllib"%sparkVersion,"org.apache.spark"%%"spark-streaming"%sparkVersion,"com.norbitltd"%%"spoiwo_2.12"%"1.4.1","com.crealytics"%%"spark-excel"%"0.13.7","com.monitorjbl"%%"xlsx-streamer"%"2.1.0...
sparkSession.sql("select * from test_excel_file").show() 二、Hive SQL实现 1. 先将Excel文件转换为普通文本文件,如CSV文件 注意: 文件编码格式建议统一采用UTF-8格式 2. Hive中建表 create external table `test_excel_file`( `id` string,
创建SparkSessionspark=SparkSession.builder \.appName("Read Excel File")\.config("spark.executor.memory","4g")\.getOrCreate()# 读取Excel文件df=spark.read \.format("com.crealytics.spark.excel")\.option("header","true")\.option("inferSchema","true")\.load("path_to_excel_file.xlsx")#...