如何使用Mule 4删除XML中返回null的属性？
如何使用Mule 4删除XML中返回null的属性？
提问于 2022-02-28 06:46:32
我需要使用数据编织2.0从中删除"null“属性，
我尝试了skipNullOn="everywhere“，而skipOnNull="attribute”只在元素上工作，而不是在属性上工作。
使用skipNullOn时出错：
"Option `skipOnNull` is not valid. Valid options are: `writeDeclaration`, `indent`, `doubleQuoteInDeclaration`, `encoding`, `escapeGT`, `defaultNamespace`, `bufferSize`, `inlineCloseOn`, `onInvalidChar`, `writeNilOnNull`, `escapeCR`, `skipNullOn`, `writeDeclaredNamespaces`, `deferred`输入XML：
<?xml version="1.0" encoding="UTF-8"?>
<DTOApplication id="Application-1660258480-1493174910" ApplicationNumber="AP-00006354">
<DTOLine id="Line-101746978-972142087" StatusCd="Active" >
<DTOCoverage id="Coverage-1713637162-341585712" CoverageCd="MINP" >
<DTOSteps>
<DTOStep Order="1" Name="Premium" value="8" factor="8"/>
<DTOStep Order="2" Name="Term Factor" value="9" factor="9">
<DTOSteps>
<DTOStep Order="1" Name="Minimum Premium" value="10" factor="10"/>
<DTOStep Order="2" Name="Rated Premium" value="null" factor="null"/>
</DTOSteps>
</DTOStep>
</DTOSteps>
</DTOCoverage>
<DTOCoverage id="Coverage-763105832-915106268" CoverageCd="TRIAL">
<DTOSteps id="Steps-Coverage-763105832-915106268">
<DTOStep Order="1" Name="Premium" value="18" factor="18" />
</DTOSteps>
</DTOCoverage>
</DTOLine>
<DTOCoverage id="Coverage-863105832-915106268" CoverageCd="EBRK" >
<DTOSteps id="Steps-Coverage-863105832-915106268">
<DTOStep Order="1" Name="Base Rate" value="null" factor="null"/>
</DTOSteps>
</DTOCoverage>
</DTOApplication>预期XML输出：https://github.com/Manikandan99/Map_request/blob/main/null_removed.xml
关于如何删除属性，如何使用dataweave 2.0返回"null“，有什么想法吗？
Stack Overflow用户
回答已采纳
发布于 2022-02-28 10:01:42
试试下面的DW
DW
%dw 2.0
output application/xml
var updateval = (element) ->
element mapObject (value, key) -> {
(key) @(
(
if (key.@?)
(key.@ mapObject ((avalue, akey) -> {
((akey): avalue) if (avalue != "null")
}))
else {}
)
) :
if (value is Object)
updateval(value)
else value
}
---
updateval(payload)输出
<?xml version='1.0' encoding='UTF-8'?>
<DTOApplication id="Application-1660258480-1493174910" ApplicationNumber="AP-00006354">
<DTOLine id="Line-101746978-972142087" StatusCd="Active">
<DTOCoverage id="Coverage-1713637162-341585712" CoverageCd="MINP">
<DTOSteps>
<DTOStep Order="1" Name="Premium" value="8" factor="8"/>
<DTOStep Order="2" Name="Term Factor" value="9" factor="9">
<DTOSteps>
<DTOStep Order="1" Name="Minimum Premium" value="10" factor="10"/>
<DTOStep Order="2" Name="Rated Premium"/>
</DTOSteps>
</DTOStep>
</DTOSteps>
</DTOCoverage>
<DTOCoverage id="Coverage-763105832-915106268" CoverageCd="TRIAL">
<DTOSteps id="Steps-Coverage-763105832-915106268">
<DTOStep Order="1" Name="Premium" value="18" factor="18"/>
</DTOSteps>
</DTOCoverage>
</DTOLine>
<DTOCoverage id="Coverage-863105832-915106268" CoverageCd="EBRK">
<DTOSteps id="Steps-Coverage-863105832-915106268">
<DTOStep Order="1" Name="Base Rate"/>
</DTOSteps>
</DTOCoverage>
</DTOApplication>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/71291432
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