如何解决使用dataweave 2递归解析XML以创建JSON数组
我正在尝试递归解析XML以使用dataweave 2创建JSON数组，但是我无法做到这一点。
我的输入XML如下-
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header>
<MessageId>{8736346D-A766-4BE1-8592-C263A4CC2AB5}</MessageId>
<Action>http://schemas.microsoft.com/dynamics/2008/01/services/BomBillsofMaterialsService/read</Action>
</Header>
<Body>
<MessageParts xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<BillsOfMaterials xmlns="http://schemas.microsoft.com/dynamics/2008/01/documents/BillsOfMaterials">
<DocPurpose>Original</DocPurpose>
<SenderId>121</SenderId>
<BOMVersion class="entity">
<_DocumentHash>5c32768c0e32d542255d67340fda7a9d</_DocumentHash>
<Active>Yes</Active>
<Approved>Yes</Approved>
<Approver>NoUser</Approver>
<BOMId>BOM0012610</BOMId>
<Construction>No</Construction>
<InventDimId>IDM0000001</InventDimId>
<ItemId>9641716</ItemId>
<ItemIdCommercial/>
<Name>Prepress Bundle - Folding Carton</Name>
<QBE_AddedByContainer>Yes</QBE_AddedByContainer>
<RecId>5637161354</RecId>
<RecVersion>1034011536</RecVersion>
<BOMTable class="entity">
<Approved>Yes</Approved>
<Approver>NoUser</Approver>
<BOMId>BOM0012610</BOMId>
<CheckBOM>Yes</CheckBOM>
<Name>Prepress Bundle - Folding Carton</Name>
<RecId>5637160605</RecId>
<RecVersion>450200996</RecVersion>
<SiteId>2</SiteId>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000031</InventDimId>
<ItemId>96AR169X</ItemId>
<LineNum>1.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300477</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000031</InventDimId>
<InventLocationId>51ST</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213319</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011986</BOMId>
<Name/>
<Approved>Yes</Approved>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>96AR060W</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>111111111</RecId>
</BOM>
<BOM>
<LineNum>2.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>96AR158</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>222222</RecId>
</BOM>
<BOM>
<LineNum>3.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>96AR582O</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>333333333</RecId>
<BOMTable>
<BOMId>BOM0013773</BOMId>
<Name>ArtiosCAD 14 A6 Software box (Standard Edition)</Name>
<Approved>Yes</Approved>
<BOM>
<LineNum>1000.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G211249</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>4444444</RecId>
</BOM>
<BOM>
<LineNum>1006.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G25583954_46</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>55555555</RecId>
</BOM>
</BOMTable>
<BOMTable>
<BOMId>BOM0013773</BOMId>
<Name>ArtiosCAD 14 A6 Software box (Standard Edition)</Name>
<Approved>Yes</Approved>
<RecId>333333333</RecId>
<BOM>
<LineNum>1000.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G211249</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>66666666</RecId>
</BOM>
<BOM>
<LineNum>1006.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G25583954_46</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>77777777777</RecId>
</BOM>
</BOMTable>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000002</InventDimId>
<ItemId>9646095W</ItemId>
<LineNum>11.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300487</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000002</InventDimId>
<InventLocationId>NOLOC</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213290</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000002</InventDimId>
<ItemId>9648376X</ItemId>
<LineNum>12.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300488</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000002</InventDimId>
<InventLocationId>NOLOC</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213290</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011638</BOMId>
<Name/>
<Approved>Yes</Approved>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9645340X</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>888888888</RecId>
</BOM>
<BOM>
<LineNum>2.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9644384Y</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>9999999999</RecId>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000003</InventDimId>
<ItemId>9643908X</ItemId>
<LineNum>13.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300489</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000003</InventDimId>
<InventLocationId>01</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213291</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011299</BOMId>
<Name/>
<Approved>Yes</Approved>
<RecId>555555555</RecId>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9642737Y</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>101010101</RecId>
</BOM>
<BOM>
<LineNum>3.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9642736Y</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>1112112112</RecId>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000003</InventDimId>
<ItemId>9642837X</ItemId>
<LineNum>14.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300490</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000003</InventDimId>
<InventLocationId>01</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213291</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011245</BOMId>
<Name/>
<Approved>Yes</Approved>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9644384Y</ItemId>
<BOMQty>-1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>13131313</RecId>
</BOM>
</BOMTable>
</BOM>
</BOMTable>
<InventDim class="entity">
<InventDimId>IDM0000001</InventDimId>
<InventSiteId>2</InventSiteId>
<RecId>5637199988</RecId>
<RecVersion>1</RecVersion>
</InventDim>
</BOMVersion>
</BillsOfMaterials>
</MessageParts>
</Body>
</Envelope>
我要创建所有BOM的JSON数组（无层次结构的扁平结构），如下所示-
输出-
[
{
"id": "5637300477","productId": "96AR169X","parentId": null
},{
"id": "111111111","productId": "96AR060W","parentId" : "BOM011986"
},{
"id": "222222","productId": "96AR158",{
"id": "333333333","productId": "96AR582O","parentId": "BOM011986"
},{
"id": "4444444","productId": "G211249","parentId" : "BOM0013773"
},{
"id": "55555555","productId": "G25583954_46",{
"id": "66666666","productId": "BOM0013773",{
"id": "77777777777",{
"id": "5637300487","productId": "9646095W","parentId" : null
},{
"id": "5637300488","productId": "9648376X","parentId" : null
},.
]
在这种情况下，我无法弄清楚递归的使用。 我对Dataweave语言很陌生，因为它是功能语言。我已经习惯了Java语言。
在此先感谢您的帮助！
解决方法
可以请您尝试下面的dwl
%dw 2.0
output application/json
var payload = read('<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header>
<MessageId>{8736346D-A766-4BE1-8592-C263A4CC2AB5}</MessageId>
<Action>http://schemas.microsoft.com/dynamics/2008/01/services/BomBillsofMaterialsService/read</Action>
</Header>
<Body>
<MessageParts xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<BillsOfMaterials xmlns="http://schemas.microsoft.com/dynamics/2008/01/documents/BillsOfMaterials">
<DocPurpose>Original</DocPurpose>
<SenderId>121</SenderId>
<BOMVersion class="entity">
<_DocumentHash>5c32768c0e32d542255d67340fda7a9d</_DocumentHash>
<Active>Yes</Active>
<Approved>Yes</Approved>
<Approver>NoUser</Approver>
<BOMId>BOM0012610</BOMId>
<Construction>No</Construction>
<InventDimId>IDM0000001</InventDimId>
<ItemId>9641716</ItemId>
<ItemIdCommercial/>
<Name>Prepress Bundle - Folding Carton</Name>
<QBE_AddedByContainer>Yes</QBE_AddedByContainer>
<RecId>5637161354</RecId>
<RecVersion>1034011536</RecVersion>
<BOMTable class="entity">
<Approved>Yes</Approved>
<Approver>NoUser</Approver>
<BOMId>BOM0012610</BOMId>
<CheckBOM>Yes</CheckBOM>
<Name>Prepress Bundle - Folding Carton</Name>
<RecId>5637160605</RecId>
<RecVersion>450200996</RecVersion>
<SiteId>2</SiteId>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000031</InventDimId>
<ItemId>96AR169X</ItemId>
<LineNum>1.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300477</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000031</InventDimId>
<InventLocationId>51ST</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213319</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011986</BOMId>
<Name/>
<Approved>Yes</Approved>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>96AR060W</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>111111111</RecId>
</BOM>
<BOM>
<LineNum>2.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>96AR158</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>222222</RecId>
</BOM>
<BOM>
<LineNum>3.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>96AR582O</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>333333333</RecId>
<BOMTable>
<BOMId>BOM0013773</BOMId>
<Name>ArtiosCAD 14 A6 Software box (Standard Edition)</Name>
<Approved>Yes</Approved>
<BOM>
<LineNum>1000.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G211249</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>4444444</RecId>
</BOM>
<BOM>
<LineNum>1006.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G25583954_46</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>55555555</RecId>
</BOM>
</BOMTable>
<BOMTable>
<BOMId>BOM0013773</BOMId>
<Name>ArtiosCAD 14 A6 Software box (Standard Edition)</Name>
<Approved>Yes</Approved>
<RecId>333333333</RecId>
<BOM>
<LineNum>1000.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G211249</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>66666666</RecId>
</BOM>
<BOM>
<LineNum>1006.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>G25583954_46</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>77777777777</RecId>
</BOM>
</BOMTable>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000002</InventDimId>
<ItemId>9646095W</ItemId>
<LineNum>11.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300487</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000002</InventDimId>
<InventLocationId>NOLOC</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213290</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000002</InventDimId>
<ItemId>9648376X</ItemId>
<LineNum>12.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300488</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000002</InventDimId>
<InventLocationId>NOLOC</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213290</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011638</BOMId>
<Name/>
<Approved>Yes</Approved>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9645340X</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>888888888</RecId>
</BOM>
<BOM>
<LineNum>2.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9644384Y</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>9999999999</RecId>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000003</InventDimId>
<ItemId>9643908X</ItemId>
<LineNum>13.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300489</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000003</InventDimId>
<InventLocationId>01</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213291</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011299</BOMId>
<Name/>
<Approved>Yes</Approved>
<RecId>555555555</RecId>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9642737Y</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>101010101</RecId>
</BOM>
<BOM>
<LineNum>3.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9642736Y</ItemId>
<BOMQty>1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>1112112112</RecId>
</BOM>
</BOMTable>
</BOM>
<BOM class="entity">
<BOMConsump>Variable</BOMConsump>
<BOMId>BOM0012610</BOMId>
<BOMQty>1.0000</BOMQty>
<BOMQtySerie>1</BOMQtySerie>
<BOMType>Item</BOMType>
<Calculation>Yes</Calculation>
<EndSchedConsump>No</EndSchedConsump>
<Formula>Formula0</Formula>
<InventDimId>IDM0000003</InventDimId>
<ItemId>9642837X</ItemId>
<LineNum>14.0000000000</LineNum>
<ProdFlushingPrincip>Blank</ProdFlushingPrincip>
<ProjSetSubProdToConsumed>No</ProjSetSubProdToConsumed>
<RecId>5637300490</RecId>
<RecVersion>1</RecVersion>
<RoundUp>No</RoundUp>
<UnitId>PCS</UnitId>
<WrkCtrConsumption>false</WrkCtrConsumption>
<InventDimBOM class="entity">
<InventDimId>IDM0000003</InventDimId>
<InventLocationId>01</InventLocationId>
<InventSiteId>2</InventSiteId>
<RecId>5637213291</RecId>
<RecVersion>1</RecVersion>
</InventDimBOM>
<BOMTable>
<BOMId>BOM011245</BOMId>
<Name/>
<Approved>Yes</Approved>
<BOM>
<LineNum>1.00</LineNum>
<BOMType>Item</BOMType>
<ItemId>9644384Y</ItemId>
<BOMQty>-1.00</BOMQty>
<OprNum>0</OprNum>
<FromDate>1900-01-01</FromDate>
<UnitId>PCS</UnitId>
<RecId>13131313</RecId>
</BOM>
</BOMTable>
</BOM>
</BOMTable>
<InventDim class="entity">
<InventDimId>IDM0000001</InventDimId>
<InventSiteId>2</InventSiteId>
<RecId>5637199988</RecId>
<RecVersion>1</RecVersion>
</InventDim>
</BOMVersion>
</BillsOfMaterials>
</MessageParts>
</Body>
</Envelope>',"application/xml")
---
flatten((payload.Envelope.Body.MessageParts.BillsOfMaterials.BOMVersion..*BOMTable map
{
BOMTable : $.*BOM map (val) -> {
"id": val.RecId,"productId": val.ItemId,parentId : $.RecId
}
}).*BOMTable)
输出为
[
{
"id": "5637300477","productId": "96AR169X","parentId": "5637160605"
},{
"id": "5637300487","productId": "9646095W",{
"id": "5637300488","productId": "9648376X",{
"id": "5637300489","productId": "9643908X",{
"id": "5637300490","productId": "9642837X",{
"id": "111111111","productId": "96AR060W","parentId": null
},{
"id": "222222","productId": "96AR158",{
"id": "333333333","productId": "96AR582O",{
"id": "4444444","productId": "G211249",{
"id": "55555555","productId": "G25583954_46",{
"id": "66666666","parentId": "333333333"
},{
"id": "77777777777",{
"id": "888888888","productId": "9645340X",{
"id": "9999999999","productId": "9644384Y",{
"id": "101010101","productId": "9642737Y","parentId": "555555555"
},{
"id": "1112112112","productId": "9642736Y",{
"id": "13131313","parentId": null
}
]
您可以使用后代数据选择器（使用..）从xml文档中检索所有BOMTable，因此无需递归浏览文档。然后使用map / flatMap输出必要的字段。
请参见下面的数据编织：
%dw 2.0
output application/json
---
payload..*BOMTable flatMap (bomTable) -> bomTable.*BOM map (bomValue) ->
{
id: bomValue.RecId,productId: bomValue.ItemId,parentId: bomTable.RecId
}
输出如下：
[
{
"id": "5637300477","parentId": "5637160605"
},{
"id": "5637300487",{
"id": "5637300488",{
"id": "5637300489",{
"id": "5637300490",{
"id": "111111111","parentId": null
},{
"id": "222222",{
"id": "333333333",{
"id": "4444444",{
"id": "55555555",{
"id": "66666666","parentId": "333333333"
},{
"id": "77777777777",{
"id": "888888888",{
"id": "9999999999",{
"id": "101010101","parentId": "555555555"
},{
"id": "1112112112",{
"id": "13131313","parentId": null
}
]
请注意，根据您在评论之一中发布的映射规则，输出仍与您发布的预期输出不同，我认为这是不正确的。
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