Mule dataweave从json数组中提取元素
我有下面的json,我试图提取phones数组的某些元素。我不总是得到2个元素,它可以是1,2,或3Mule dataweave从json数组中提取元素,mule,dataweave,Mule,Dataweave,我有下面的json,我试图提取phones数组的某些元素。我不总是得到2个元素,它可以是1,2,或3 { "phones": [{ "id": 123, "phoneType": "H", "phoneNumber": "2125551212", "countryCode": "1", "isCellPhone": false, "optInTexting": false }, {
{
"phones": [{
"id": 123,
"phoneType": "H",
"phoneNumber": "2125551212",
"countryCode": "1",
"isCellPhone": false,
"optInTexting": false
}, {
"id": 456,
"phoneType": "W",
"phoneNumber": "9197776262",
"countryCode": "1",
"isCellPhone": true,
"optInTexting": true
}
]
}
这就是我对输出的看法:
%output application/java
---
{
HOMEPH: payload.phones filter ($.phoneType == "H") map {HOMEPH:.phoneNumber},
WORKPH: payload.phones filter ($.phoneType == "W") map {WORKPH:$.phoneNumber}
}
我从中得到的结果是:
HOMEPH: [{HOMEPH=2125551212}]
WORKPH: [{WORKPH=9197776262}]
我想要的是:
HOMEPH: "2125551212",
WORKPH: "9197776262"
由于您将输出用作
application/java
,因此可以尝试以下操作:
%dw 1.0
%output application/java
---
{
(payload.phones filter ($.phoneType == "H") map {HOMEPH:$.phoneNumber}),
(payload.phones filter ($.phoneType == "W") map {WORKPH:$.phoneNumber})
}
您将获得如下输出:
如果在Dataweave之后将对象添加到字符串转换器,您将获得:
{HOMEPH=2125551212, WORKPH=9197776262}
由于您将输出用作
application/java
,因此可以尝试以下操作:
%dw 1.0
%output application/java
---
{
(payload.phones filter ($.phoneType == "H") map {HOMEPH:$.phoneNumber}),
(payload.phones filter ($.phoneType == "W") map {WORKPH:$.phoneNumber})
}
您将获得如下输出:
如果在Dataweave之后将对象添加到字符串转换器,您将获得:
{HOMEPH=2125551212, WORKPH=9197776262}
试试下面的方法
%output application/java
---
{
HOMEPH: (payload.phones filter ($.phoneType == "H") map ($.phoneNumber)) [0],
WORKPH: (payload.phones filter ($.phoneType == "W") map ($.phoneNumber)) [0]
}
或
第二个选项更有效,因为它只迭代一次有效负载。
希望这有帮助。尝试以下方法
%output application/java
---
{
HOMEPH: (payload.phones filter ($.phoneType == "H") map ($.phoneNumber)) [0],
WORKPH: (payload.phones filter ($.phoneType == "W") map ($.phoneNumber)) [0]
}
或
第二个选项更有效,因为它只迭代一次有效负载。
希望这能有所帮助。是的,这正是我想要的。因为我过滤到数组中的一个元素,并且我想要这个元素[0],所以它提取我所需要的。非常感谢。是的,这就是我要找的。因为我过滤到数组中的一个元素,并且我想要这个元素[0],所以它提取我所需要的。非常感谢。