Question

我有以下JSON：

UserInput = input("Enter")
if UserInput == "yes":
    print ("good job")
# elif requires a condition to evaluate. It's a shorthand for else if 
# you can do e.g. elif UserInput == "no"
elif (condition): # colon goes here
    print ("wrong")
else:
    return

我想写一个[ { "Country": "Norway", "Dept": "2", "Hours": "08,00" }, { "Country": "Norway", "Dept": "2", "Hours": "08,00" }, { "Country": "Sweden", "Dept": "1", "Hours": "08,00" }, { "Country": "Sweden", "Dept": "2", "Hours": "08,00" } ]国家/地区和部门（如果我添加更多参数）并按以下方式获取工作时间总数：

groupBy

如何在groovy中多次添加[ { "Country": "Norway", "Dept": "2", "Hours": "16,00" }, { "Country": "Sweden", "Dept": "1", "Hours": "08,00" }, { "Country": "Sweden", "Dept": "2", "Hours": "08,00" } ]以便实现这一目标？我看到我需要添加一些GroupBY，但我不确定如何

Answer 1

我认为这就是你要找的东西，但我不喜欢我在地图上迭代并使用<<到新列表。

诗;你的变量Hours是一个字符串，我把它作为数字。

def map = objJson.groupBy({it.Country}, {it.Dept}).collectEntries { k, v ->
    [k, v.collect{ [Hours: it.value.Hours.sum(), Dept: it.value.Dept[0], Country: it.value.Country[0]] }]
}

def list = []
map.each(){ k, v ->
    v.each{
        list << it
    }
}
return new JsonBuilder(list).toPrettyString()

在Groovy SQL中按几个参数分组

1 个答案: