format
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parent
6baccbf23d
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5303741624
@ -1,4 +1,4 @@
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from pyspark.sql.types import IntegerType, FloatType
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from pyspark.sql.types import FloatType
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from client import spark_app
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from data.data import data_now_hdfs, mysql_jdbc_uri, mysql_jdbc_prop
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import os
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os.environ["JAVA_HOME"] = "/opt/modules/jdk1.8.0_212"
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os.environ["YARN_CONF_DIR"] = "/usr/hdp/2.6.3.0-235/hadoop-yarn/etc/hadoop/"
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from pyspark.sql.types import DecimalType
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from pyspark.sql import functions
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from pyspark.sql.types import DecimalType
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from client import spark_app
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from data.data import data_hour_hdfs, mysql_jdbc_uri, mysql_jdbc_prop
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@ -17,8 +17,8 @@ def rain_24h_analyse():
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).filter(df['rain1h'] < 9999)
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# 分组、聚合、排序
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df_rain_sum_data = (df_rain_data.groupBy("city_index", "city_name")
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.agg(functions.sum("rain1h").alias("rain24h"))
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.sort(functions.desc("rain24h")))
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.agg(functions.sum("rain1h").alias("rain24h"))
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.sort(functions.desc("rain24h")))
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df_rain_sum_data.cache()
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print("处理完成,保存数据到数据库")
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df_rain_sum_data.coalesce(1).write.jdbc(mysql_jdbc_uri, "rain_24h_analyse", "ignore", mysql_jdbc_prop)
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@ -1,12 +1,12 @@
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from pyspark.sql.types import IntegerType
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from pyspark.sql import functions
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from pyspark.sql.types import IntegerType
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from client import spark_app
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from data.data import data_day_hdfs, mysql_jdbc_uri, mysql_jdbc_prop
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def tem_2024_analyse():
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print("计算重庆市各个区县 2024 年 每天的 最高气温,最低气温,平均气温")
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print("计算重庆市各个区县 2024 年 每月的 最高气温,最低气温,平均气温")
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app = spark_app("tem_2024_analyse")
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print("创建应用完成,开始读取数据")
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df = app.read.csv(data_day_hdfs, header=True)
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@ -20,19 +20,19 @@ def tem_2024_analyse():
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# 转换 'date' 列的日期格式
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df_rain_data = df_rain_data.withColumn(
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'date',
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functions.date_format(functions.from_unixtime(
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functions.unix_timestamp('date', 'yyyyMMdd')), 'yyyyMM').cast(IntegerType())
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functions.date_format(functions.from_unixtime(
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functions.unix_timestamp('date', 'yyyyMMdd')), 'yyyyMM').cast(IntegerType())
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)
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# 分组、聚合
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df_rain_data = (df_rain_data.groupBy("city", "date")
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.agg(functions.max("hmax").alias("hmax"),
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functions.min("hmin").alias("hmin"),
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functions.round(functions.avg("havg"), 2).alias("havg"))
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.sort("city", df_rain_data.date.desc()))
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.agg(functions.max("hmax").alias("hmax"),
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functions.min("hmin").alias("hmin"),
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functions.round(functions.avg("havg"), 2).alias("havg"))
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.sort("city", df_rain_data.date.desc()))
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df_rain_data.cache()
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print("处理完成,保存数据到数据库")
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df_rain_data.coalesce(1).write.jdbc(mysql_jdbc_uri, "tem_2024_analyse", "ignore", mysql_jdbc_prop)
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print("各个区县 2024 年 每天的 最高气温,最低气温,平均气温计算完毕")
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print("各个区县 2024 年 每月的 最高气温,最低气温,平均气温计算完毕")
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return df_rain_data.head(20)
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