使用mule 4向xml负载添加新节点时缺少属性值

Question

我正试图使用以下数据编织代码将新的子节点(ValidationError(添加到现有的xml负载中：

%dw 2.0
var errormessage = "Rating Service Exception Error. Please contact support."
output application/xml writeDeclaration=false
---
DTOApplication : payload.DTOApplication ++ { ValidationError @(TypeCd: "Validation", Name: "Rate Service Exception Error", Msg: errormessage, SubTypeCd: "ERROR") :null}

ValidationError子节点完美地追加，但是缺少根节点DTOApplication的属性值

输入有效载荷：https://github.com/Manikandan99/Map_request/blob/main/request_payload.xml

预期响应：https://github.com/Manikandan99/Map_request/blob/main/Expected_response.xml

新的子节点是ValidationError:

<ValidationError TypeCd="Validation" Name="Rate Service Exception Error" Msg="Rating Service Exception Error. Please contact support." SubTypeCd="ERROR"/>

关于如何使用dataweave 2.0在不丢失DTOApplication属性值的情况下将ValidationError子节点附加到现有负载，有什么想法吗？

Answer 1

你能试一下下面的代码吗，它给出了预期的输出

%dw 2.0
var errormessage = "Rating Service Exception Error. Please contact support."
output application/xml  writeDeclaration=true
---
payload mapObject ((value, key, index) -> 
(key): value ++ {
ValidationError @(TypeCd: "Validation", Name: "Rate Service Exception Error", Msg: errormessage, SubTypeCd: "ERROR"): null
}
)

Answer 2

脚本的问题是它使用节点DTOApplication的值，但忽略了它具有属性。我提供了一个简单的解决方案，但@Anurag Sharma解决方案似乎更好，因为它是通用的。

%dw 2.0
var errormessage = "Rating Service Exception Error. Please contact support."
output application/xml writeDeclaration=false
---
{
DTOApplication @((payload.DTOApplication.@)) : payload.DTOApplication ++ { ValidationError @(TypeCd: "Validation", Name: "Rate Service Exception Error", Msg: errormessage, SubTypeCd: "ERROR") :null}
}