Groovy连接现有description标记中的ID和description

Question

我正在尝试在Groovy中保存一个带有xml的ID和描述的哈希表，但无法使我的工作代码获得更深层次的ID，目前我只能正确地映射描述。

代码

    import com.sap.gateway.ip.core.customdev.util.Message
    import java.util.HashMap
    import java.io.*
    import groovy.xml.*
    
      def body = message.getBody(java.io.Reader)
      HashMap<Integer, String> hmap = new HashMap<Integer, String>()
      def Root = new XmlSlurper().parse(body)
    
      Root.ExternalReqForApprovalInput_Item.item.ExternalReqLineItems.item.each {
            try {
hmap.put(it.ItemDescription.text().toString(),it.LineExtrinsics.Extrinsics.Extrinsic.@InternalID);
            }
            catch (Exception ex) {
            //put relevant exception handling here
            }
      }

XML：

<urn:ExternalReqForApprovalImportRequest xmlns:urn="urn:Ariba:Buyer:vrealm_1" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xs="http://www.w3.org/2001/XMLSchema" partition="" variant="">
    <urn:ExternalReqForApprovalInput_Item>
        <urn:item>
            <urn:Name>Line 1</urn:Name>
            <urn:Operation>NEW</urn:Operation>
            <urn:ExternalReqLineItems>
                <urn:item>
                    <urn:ExternalLineNumber>2</urn:ExternalLineNumber>
                    <urn:ItemDescription>TEST DESCRIPTION 1</urn:ItemDescription>
                    <urn:Quantity>1.00</urn:Quantity>
                    <urn:LineExtrinsics>
                        <Extrinsics>
                            <Extrinsic name="InternalID">7000083</Extrinsic>
                        </Extrinsics>
                    </urn:LineExtrinsics>
                </urn:item>
            </urn:ExternalReqLineItems>
        </urn:item>
        <urn:item>
            <urn:Name>Line 2</urn:Name>
            <urn:Operation>NEW</urn:Operation>
            <urn:ExternalReqLineItems>
                <urn:item>
                    <urn:ExternalLineNumber>2</urn:ExternalLineNumber>
                    <urn:ItemDescription>TEST DESCRIPTION 2</urn:ItemDescription>
                    <urn:Quantity>1.00</urn:Quantity>
                    <urn:LineExtrinsics>
                        <Extrinsics>
                            <Extrinsic name="InternalID">7000084</Extrinsic>
                        </Extrinsics>
                    </urn:LineExtrinsics>
                </urn:item>
            </urn:ExternalReqLineItems>
        </urn:item>     
    </urn:ExternalReqForApprovalInput_Item>
</urn:ExternalReqForApprovalImportRequest>

从名为InternalID的外部变量中获取值的正确方法是什么？

预期样本为：

7000083-测试描述1

7000084-测试说明2

谢谢

Answer 1

以下代码：

import groovy.xml.*

def data = '''\
<urn:ExternalReqForApprovalImportRequest xmlns:urn="urn:Ariba:Buyer:vrealm_1" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xs="http://www.w3.org/2001/XMLSchema" partition="" variant="">
    <urn:ExternalReqForApprovalInput_Item>
        <urn:item>
            <urn:Name>Line 1</urn:Name>
            <urn:Operation>NEW</urn:Operation>
            <urn:ExternalReqLineItems>
                <urn:item>
                    <urn:ExternalLineNumber>2</urn:ExternalLineNumber>
                    <urn:ItemDescription>TEST DESCRIPTION 1</urn:ItemDescription>
                    <urn:Quantity>1.00</urn:Quantity>
                    <urn:LineExtrinsics>
                        <Extrinsics>
                            <Extrinsic name="InternalID">7000083</Extrinsic>
                        </Extrinsics>
                    </urn:LineExtrinsics>
                </urn:item>
            </urn:ExternalReqLineItems>
        </urn:item>
        <urn:item>
            <urn:Name>Line 2</urn:Name>
            <urn:Operation>NEW</urn:Operation>
            <urn:ExternalReqLineItems>
                <urn:item>
                    <urn:ExternalLineNumber>2</urn:ExternalLineNumber>
                    <urn:ItemDescription>TEST DESCRIPTION 2</urn:ItemDescription>
                    <urn:Quantity>1.00</urn:Quantity>
                    <urn:LineExtrinsics>
                        <Extrinsics>
                            <Extrinsic name="InternalID">7000084</Extrinsic>
                        </Extrinsics>
                    </urn:LineExtrinsics>
                </urn:item>
            </urn:ExternalReqLineItems>
        </urn:item>     
    </urn:ExternalReqForApprovalInput_Item>
</urn:ExternalReqForApprovalImportRequest>
'''

def xml = new XmlSlurper().parseText(data)

// items is a Map<String, String> 
def items = xml.ExternalReqForApprovalInput_Item.item.findAll { node -> 
  node.ExternalReqLineItems.item.LineExtrinsics.Extrinsics.Extrinsic.@name == "InternalID"
}.collectEntries { node -> 
  node.ExternalReqLineItems.item.with { 
    [LineExtrinsics.Extrinsics.Extrinsic.text(), ItemDescription.text()]
  }
}

println items

运行时，打印：

─➤ groovy solution.groovy
[7000083:TEST DESCRIPTION 1, 7000084:TEST DESCRIPTION 2]

findAll将遍历项目并查找外部名称等于"InternalID“的所有项目节点。对于这些节点，collectEntries会将列表(项目节点)转换为一个映射，其中键是7000084字符串，值是ItemDescription字符串。

如果您希望将连接的字符串作为结果而不是映射，则可以这样做：

def items = xml.ExternalReqForApprovalInput_Item.item.findAll { node -> 
  node.ExternalReqLineItems.item.LineExtrinsics.Extrinsics.Extrinsic.@name == "InternalID"
}.collect { node -> 
  node.ExternalReqLineItems.item.with { 
    "${LineExtrinsics.Extrinsics.Extrinsic.text()}-${ItemDescription.text()}"
  }
}

println items

(注意，我们现在使用的是collect

它在运行时将打印：

─➤ groovy solution.groovy                                                                                          
[7000083-TEST DESCRIPTION 1, 7000084-TEST DESCRIPTION 2]

其中，items现在是由连字符-连接的键和值的List<String>。