Question

由于Bigquery数据库的查询响应，我不得不使用civil.Datetime。

如何从Golang的civil.Datetime中获取时间。时间日期？

类似的东西：

var date time.Time = civil.ToTime(myCivilTime)

我检查了民用时间文档：https://godoc.org/cloud.google.com/go/civil，并且有一个功能似乎可以满足我的要求。

func (d Date) In(loc *time.Location) time.Time

但是我不确定如何设置* time.Location参数。

Answer 1

使用btnsubmit_Click对您的应用程序有意义的任何内容。例如，

time.Location

输出：

package main

import (
    "fmt"
    "time"

    "cloud.google.com/go/civil"
)

func main() {
    now := time.Now().Round(0)
    fmt.Println(now, " : time Now")
    d := civil.DateTimeOf(now)
    fmt.Println(d, "           : civil DateTime")
    t := d.In(time.UTC)
    fmt.Println(t, " : time UTC")
    t = d.In(time.Local)
    fmt.Println(t, " : time Local")
    pacific, err := time.LoadLocation("America/Los_Angeles")
    if err != nil {
        fmt.Println(err)
        return
    }
    t = d.In(pacific)
    fmt.Println(t, " : time Pacific")
}

Answer 2

除了@peterSO的答案外，如果您不想依赖于计算机的区域时间，还可以转换为def main(args: Array[String]): Unit = { val spark = SparkSession.builder().master("local[*]"). enableHiveSupport().getOrCreate() spark.sqlContext.setConf("spark.sql.caseSensitive", "false") import spark.implicits._ //hive table 存进行时会自动转小写 val hivetable = """{"deliverysystype":"dms","aaaa":"dms","orderid":"B0001-N103-000-005882-RL3AI2RWCP","storeid":"N103"}""" val hiveDF = Seq(hivetable).toDF("msg") val rdd = hiveDF.rdd.map(_.getString(0)) rdd.toDS().show(false) val jsonDataDF = spark.read.json(rdd.toDS()) val jsonstr = """{"data":{"deliverySysType":"dms","orderId":"B0001-N103-000-005882-RL3AI2RWCP","storeId":"N103"},"accessKey":"f9d069861dfb1678","actionName":"candao.rider.getDeliveryInfo","timestamp":1571587522000,"ticket":"B0001.N127.FBDDS2.20191021000522156","serviceType":"delivery","sign":"fa0239c75e065cf43d0a4040665578ba" }""" val jsonStrDF = Seq(jsonstr).toDF("msg") jsonStrDF.show(false) val structSeqSchme = StructType(Seq(StructField("data", jsonDataDF.schema, true), StructField("accesskey", StringType, true),//这里应该 accessKey StructField("actionName", StringType, true))) //hive col name lower case, json data key capital and small letter,Take less than value val mapOption = Map("accept_case_insensitive_properties" -> "true")//I'm not doing anything here, but I don't know how to set a value, right? val newDF = jsonStrDF.withColumn("data_col", from_json(col("msg"), structSeqSchme, mapOption)) newDF.show(false) newDF.printSchema() newDF.select($"data_col.accessKey", $"data_col.actionName", $"data_col.data.*").show(false) //+---------+----------------------------+----+---------------+-------+-------+ //|accessKey|actionName |aaaa|deliverysystype|orderid|storeid| //+---------+----------------------------+----+---------------+-------+-------+ //|null |candao.rider.getDeliveryInfo|null|null |null |null | //+---------+----------------------------+----+---------------+-------+-------+ }，然后再次转换为string：

time.Time

https://play.golang.org/p/MW9DrQ89Mwu

如何获得时间。

2 个答案: