How to read and write XML File without certain nodes in Java
Question
I am trying to read an XML File and write a new XML file without the first node(root element) and the second node. Here an example..
I got this: afile.xml
<soap:Envelope>
<soap:Body>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
</soap:Body>
</soap:Envelope>
and want this : bfile.xml
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
2 answers
solution1
1 ACCPTED 2015-10-01 09:02:21
One way is to use XSLT, for instance XSLT 2.0 can do it with a simple stylesheet
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="2.0">
<xsl:template match="/">
<xsl:copy-of select="//note" copy-namespaces="no"/>
</xsl:template>
</xsl:stylesheet>
You need to use an XSLT 2.0 processor like Saxon 9 to run the code given above.
If you don't know the name of the element you want to copy then using <xsl:copy-of select="/*/*/*" copy-namespaces="no"/> instead of <xsl:copy-of select="//note" copy-namespaces="no"/> should do.
solution2
0 2015-10-03 15:14:20
Try the following ...
import java.util.Map;
import cjm.component.cb.map.ToMap;
import cjm.component.cb.xml.ToXML;
public class NoteExtract
{
public static void main(String[] args)
{
try
{
String xml = "<soap:Envelope><soap:Body><note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note></soap:Body></soap:Envelope>";
Map<String, Object> map = new ToMap().convertToMap(xml);
Map<String, Object> mapEnvelope = (Map<String, Object>) map.get("soap:Envelope");
Map<String, Object> mapBody = (Map<String, Object>) mapEnvelope.get("soap:Body");
String extractedXML = (new ToXML().convertToXML(mapBody, true)).toString();
System.out.println("Extracted XML: " + extractedXML);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
Output:
-------- XML Detected --------
-------- Map created Successfully --------
-------- Map Detected --------
-------- XML created Successfully --------
Extracted XML: <note><to>Tove</to><body>Don't forget me this weekend!</body><from>Jani</from><heading>Reminder</heading></note>
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