如何從 vb.net 中的 XML 文件中檢索相應的值？
[英]How to retrieve the corresponding values from XML file in vb.net?
問題描述
我需要從 XML 文件中檢索值，我見過很多例子，但沒有一個像我擁有的 XML。 我的 XML 看起來像這樣。
<title>TOSSICOLOGIA D'ABUSO</title>
<component>
<section>
<code code="31011" codeSystemName="Codifica Interna Laboratorio" displayName="Etanolo (urine)">
<!--TRASCODIFICA ANALISI NON DISPONIBILE-->
</code>
<text>
<paragraph>
</paragraph>
<table>
<thead>
<tr>
<th>Esame</th>
<th>Esito</th>
<th>Abnormal Flag</th>
<th>Unita di misura</th>
<th>Range di riferimento</th>
<th>Metodo</th>
</tr>
</thead>
<tbody>
<tr>
<td>Etanolo (urine)</td>
<td>< 0,01 g/l</td>
<td></td>
<td></td>
<td>fino a 0,35</td>
<td />
</tr>
</tbody>
</table>
<footnote></footnote>
<paragraph>
</paragraph>
<!--Inizio Microbiologia sezione humane readable-->
<!--Fine Microbiologia sezione humane readable-->
</text>
<entry typeCode="DRIV">
<!-- INIZIO MONO RISULTATO -->
<act classCode="ACT" moodCode="EVN">
<code code="31011" codeSystemName="Codifica Interna Laboratorio" displayName="Etanolo (urine)">
<!--TRASCODIFICA ANALISI NON DISPONIBILE-->
</code>
<statusCode code="completed" />
<!--(INIZIO) GESTIONE MICROBIOLOGIA MONO RISULTATO -->
<!--(FINE) GESTIONE MICROBIOLOGIA MONO RISULTATO -->
<entryRelationship typeCode="COMP">
<observation classCode="OBS" moodCode="EVN">
<code code="31011" codeSystemName="Codifica Interna Laboratorio" displayName="Etanolo (urine)">
<!--TRASCODIFICA RISULTATI NON DISPONIBILE-->
<!--ANL_COMPLETED-->
</code>
<statusCode code="completed" />
<effectiveTime value="20170216131204" />
<value xsi:type="ST">< 0,01 g/l</value>
<!---->
<referenceRange typeCode="REFV">
<observationRange classCode="OBS" moodCode="EVN.CRT">
<value xsi:type="IVL_PQ">
<low value="0.00" />
<high value="0.35" />
</value>
<interpretationCode code="N" />
</observationRange>
</referenceRange>
<referenceRange typeCode="REFV">
<observationRange classCode="OBS" moodCode="EVN.CRT">
<value xsi:type="ST">fino a 0,35</value>
<interpretationCode code="N" />
</observationRange>
</referenceRange>
</observation>
</entryRelationship>
<!-- VAL USED -->
</act>
<!-- FINE MONO RISULTATO -->
</entry>
</section>
</component>
<component>
<section>
<code code="32000" codeSystemName="Codifica Interna Laboratorio" displayName="Creatininuria">
<!--TRASCODIFICA ANALISI NON DISPONIBILE-->
</code>
<text>
<paragraph>
<content ID="ANLNOTE---2-2">Prova autenticità campione droghe</content>
</paragraph>
<table>
<thead>
<tr>
<th>Esame</th>
<th>Esito</th>
<th>Abnormal Flag</th>
<th>Unita di misura</th>
<th>Range di riferimento</th>
<th>Metodo</th>
</tr>
</thead>
<tbody>
<tr>
<td>Creatininuria</td>
<td>193.0</td>
<td></td>
<td>mg/dL</td>
<td>fino a 20: campione non idoneo
(non utilizzabile ai fini medico legali)
20 - 40: campione dubbio
sup. a 40: campione idoneo
</td>
<td />
</tr>
</tbody>
</table>
<footnote></footnote>
<paragraph>
</paragraph>
<!--Inizio Microbiologia sezione humane readable-->
<!--Fine Microbiologia sezione humane readable-->
</text>
<entry typeCode="DRIV">
<!-- INIZIO MONO RISULTATO -->
<act classCode="ACT" moodCode="EVN">
<code code="32000" codeSystemName="Codifica Interna Laboratorio" displayName="Creatininuria">
<!--TRASCODIFICA ANALISI NON DISPONIBILE-->
</code>
<statusCode code="completed" />
<!--(INIZIO) GESTIONE MICROBIOLOGIA MONO RISULTATO -->
<!--(FINE) GESTIONE MICROBIOLOGIA MONO RISULTATO -->
<entryRelationship typeCode="SUBJ">
<act classCode="ACT" moodCode="EVN">
<code code="48767-8" codeSystem="2.16.840.1.113883.6.1" codeSystemName="LOINC" displayName="Annotation Comment" />
<text>
<reference value="ANLNOTE---2-2" />
</text>
</act>
</entryRelationship>
<entryRelationship typeCode="COMP">
<observation classCode="OBS" moodCode="EVN">
<code code="32000" codeSystemName="Codifica Interna Laboratorio" displayName="Creatininuria">
<!--TRASCODIFICA RISULTATI NON DISPONIBILE-->
<!--ANL_COMPLETED-->
</code>
<statusCode code="completed" />
<effectiveTime value="20170216121035" />
<value xsi:type="PQ" value="193.0" unit="mg/dL" />
<referenceRange typeCode="REFV">
<observationRange classCode="OBS" moodCode="EVN.CRT">
<value xsi:type="IVL_PQ">
<low value="40.0" unit="mg/dL" />
<high value="99999.0" unit="mg/dL" />
</value>
<interpretationCode code="N" />
</observationRange>
</referenceRange>
<referenceRange typeCode="REFV">
<observationRange classCode="OBS" moodCode="EVN.CRT">
<value xsi:type="ST">fino a 20: campione non idoneo
(non utilizzabile ai fini medico legali)
20 - 40: campione dubbio
sup. a 40: campione idoneo
</value>
<interpretationCode code="N" />
</observationRange>
</referenceRange>
</observation>
</entryRelationship>
<!-- VAL USED -->
</act>
<!-- FINE MONO RISULTATO -->
</entry>
</section>
正如您所看到的，就像一個 html 表。我在數據庫中創建了一個帶有這些 FIELDS 名稱的表，我需要將字段的值放入數據庫中。
但首先我需要一種方法如何使用visual basic獲取VALUES，然后再看看如何將值放在db上。 所以這是一個圖像，它告訴我需要的值在 XML 的標記 ,,td'' 下。 但是表 ate db 應該是這樣的.... XML 部分的值是第二個表中的第一個。
對於這部分代碼，我可以使用
Dim path As String = "C:\Users\ShkelzenTarja\projekt\CDR_v3_1\CDR\test2.xml" ' "put path to xml file here"
Dim xe As XElement
xe = XElement.Load("C:\Users\ShkelzenTarja\projekt\CDR_v3_1\CDR\test2.xml")
Dim sectn As XElement = (From el In xe...<code> Select el Take 1).FirstOrDefault
If sectn IsNot Nothing Then 'did we get a code
'yes
sectn = sectn.Parent 'the section
'
End If
If sectn IsNot Nothing Then 'did we get a section
'yes
For Each tr As XElement In sectn...<table>.<tbody>.<tr>
For Each td As XElement In tr.<td>
Debug.WriteLine(td.Value)
Next
Next
End If
但我有一些問題：
1- path 和 xe = XElement.Load 的差異
2- 選擇 el Take 1).FirstOrDefault ...我如何更改它以獲取文檔具有的所有值，而不僅僅是第一個值。
3-如果我的 xml 有兩個標題，我應該使用相同的語法，因為實際上它有你在照片中看到的。 感謝您的幫助@dbasnett
我的所有 Xml 都在這里：在此處輸入鏈接描述
2 個解決方案
解決方案1
0 2018-11-15 19:21:12
XML 示例的格式不正確。 這可能會給你一個想法
對於生產代碼使用
Dim path As String = "put path to xml file here"
Dim xe As XElement
xe = XElement.Load(path) 'load the xml from file
因為這是 VB，所以您可以使用文字進行測試。 我已盡力修復 XML
Dim xe As XElement
xe = <title>TOSSICOLOGIA D'ABUSO
<component>
<section>
<code code="31011" codeSystemName="Codifica Interna Laboratorio" displayName="Etanolo (urine)"></code>
<text>
<table>
<thead>
<tr>
<th>Esame</th>
<th>Esito</th>
<th>Abnormal Flag</th>
<th>Unita di misura</th>
<th>Range di riferimento</th>
<th>Metodo</th>
</tr>
</thead>
<tbody>
<tr>
<td>Etanolo (urine)</td>
<td>< 0,01 g/l</td>
<td></td>
<td></td>
<td>fino a 0,35</td>
<td/>
</tr>
</tbody>
</table>
<footnote></footnote>
<paragraph></paragraph>
</text>
</section>
</component>
<section>
<code code="32000" codeSystemName="Codifica Interna Laboratorio" displayName="Creatininuria"></code>
<text>
<table>
<thead>
<tr>
<th>Esame</th>
<th>Esito</th>
<th>Abnormal Flag</th>
<th>Unita di misura</th>
<th>Range di riferimento</th>
<th>Metodo</th>
</tr>
</thead>
<tbody>
<tr>
<td>Creatininuria</td>
<td>193.0</td>
<td></td>
<td>mg/dL</td>
<td>fino a 20: campione non idoneo
(non utilizzabile ai fini medico legali)
20 - 40: campione dubbio
sup. a 40: campione idoneo
</td>
<td/>
</tr>
</tbody>
</table>
</text>
</section>
</title>
接下來找到其中一張表。 我將使用代碼節點來做到這一點
Dim sectn As XElement = (From el In xe...<code> Where el.@code = "32000" Select el Take 1).FirstOrDefault
If sectn IsNot Nothing Then 'did we get a code
'yes
sectn = sectn.Parent 'the section
'
End If
只是一些想法。 希望能幫助到你。 一旦我們有了一個部分，我們就可以迭代正文中的行
If sectn IsNot Nothing Then 'did we get a section
'yes
For Each tr As XElement In sectn...<table>.<tbody>.<tr>
For Each td As XElement In tr.<td>
Debug.WriteLine(td.Value)
Next
Next
'
End If
看看下面的鏈接
解決方案2
0 已采納 2018-12-03 14:54:48
解決方案
私有子 GetContinents()
Const FILENAME As String = "C:\Users\ShkelzenTarja\projekt\CDR_v3_1\CDR\test.xml"
Dim settings As XmlReaderSettings = New XmlReaderSettings()
settings.ConformanceLevel = ConformanceLevel.Fragment
Dim reader As XmlReader = XmlReader.Create(FILENAME, settings)
Dim dt As DataTable = New DataTable()
dt.Columns.Add("Display Name", GetType(String))
dt.Columns.Add("Code", GetType(String))
dt.Columns.Add("Esame", GetType(String))
dt.Columns.Add("Esito", GetType(String))
dt.Columns.Add("Abnormal Flag", GetType(String))
dt.Columns.Add("Unita Di Misura", GetType(String))
dt.Columns.Add("Range Di Riferimento", GetType(String))
dt.Columns.Add("Metoda", GetType(String))
dt.Columns.Add("Low", GetType(Decimal))
dt.Columns.Add("High", GetType(Decimal))
dt.Columns.Add("Time", GetType(DateTime))
Dim uri = "urn:hl7-org:v3"
While (Not reader.EOF)
If reader.Name <> "section" Then
reader.ReadToFollowing("section", uri)
End If
If Not reader.EOF Then
Dim section As XElement = CType(XElement.ReadFrom(reader), XElement)
Dim xCode As XElement = section.Descendants().Where(Function(x) x.Name.LocalName = "code").FirstOrDefault()
Dim displayName As String = CType(xCode.Attribute("displayName"), String)
For Each xComponent As XElement In section.Elements().Where(Function(x) x.Name.LocalName = "component")
Dim xEsame As XElement = xComponent.Descendants().Where(Function(x) x.Name.LocalName = "code").FirstOrDefault()
Dim code As String = CType(xEsame.Attribute("code"), String)
Dim xBody As XElement = xComponent.Descendants().Where(Function(x) x.Name.LocalName = "tbody").FirstOrDefault()
Dim data As New List(Of String)
data.AddRange({displayName, code})
data.AddRange(xBody.Descendants().Where(Function(x) x.Name.LocalName = "td").Select(Function(x) CType(x, String)))
Dim entry As XElement = section.Descendants().Where(Function(x) x.Name.LocalName = "entry").FirstOrDefault()
Dim low As XElement = entry.Descendants().Where(Function(x) x.Name.LocalName = "low").FirstOrDefault()
If low Is Nothing Then
data.Add(Nothing)
Else
data.Add(Decimal.Parse(CType(low.Attribute("value"), String)))
End If
Dim high As XElement = entry.Descendants().Where(Function(x) x.Name.LocalName = "high").FirstOrDefault()
If high Is Nothing Then
data.Add(Nothing)
Else
data.Add(Decimal.Parse(CType(high.Attribute("value"), String)))
End If
Dim effectiveTime As XElement = entry.Descendants().Where(Function(x) x.Name.LocalName = "effectiveTime").FirstOrDefault()
Dim dateStr As String = CType(effectiveTime.Attribute("value"), String)
data.Add(DateTime.ParseExact(dateStr, "yyyyMMddHHmmss", System.Globalization.CultureInfo.InvariantCulture))
'For i = 0 To data.Count - 1
Insert_CDA_Data(data)
' i = i + 11
'Next
'dt.Rows.Add(data.ToArray())
'Debug.WriteLine(dt)
Next xComponent
End If
End While
End Sub
Private Function Insert_CDA_Data(ByVal data As List(Of String))
Dim esito As Boolean = True
Try
Using scope As New TransactionScope()
operations.INSERT_CDA(ucDataCapture(data))
scope.Complete()
End Using
Catch ex As Exception
esito = False
Dim log As New Log
log.writeLog("Cda", ex)
End Try
Return esito
End Function
Private Function ucDataCapture(ByVal data As List(Of String)) As CDA
Dim CDA_D As New CDA
Try
CDA_D.codeProperty = data(1)
CDA_D.nameProperty = data(0)
CDA_D.esameProperty = data(2)
CDA_D.esitoProperty = data(3)
CDA_D.abnormalFlagProperty = data(4)
CDA_D.unitaDiMisuraProperty = data(5)
CDA_D.rangeDiRiferimentoProperty = data(6)
CDA_D.metodaProperty = data(7)
If data(8) IsNot Nothing Then
CDA_D.lowProperty = data(8)
Else
CDA_D.lowProperty = ""
End If
If data(9) IsNot Nothing Then
CDA_D.highProperty = data(9)
Else
CDA_D.highProperty = ""
End If
CDA_D.effectiveTimeProperty = data(10)
Catch ex As Exception
Dim log As New Log
log.writeLog("Cda ", ex)
End Try
Return CDA_D
End Function
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