[英]merge XML using STAX XMLStreamWriter
我已经使用STAX
和XMLStreamWriter创建了XML
。 工作正常。
我需要将两个xml合并在一起。 我面临的问题是患者Pojo将包含所有患者信息的XML返回给我,如下所示
<Patient>
<SocialSecurity>3333344</SocialSecurity>
<Name>
<LastName>pillai</LastName>
<FirstName>dhanya</FirstName>
<Name>
<Patient>
我需要在<proID>
之后将其添加到现有XML中,例如合并。
<?xml version="1.0" ?>
<Validate>
<proID>123</prodID>
</Validate>
请指教
答案如下
public static void main(String[] args) throws Throwable {
XMLEventWriter eventWriter;
XMLEventFactory eventFactory;
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
eventWriter = outputFactory.createXMLEventWriter(bos);
eventFactory = XMLEventFactory.newInstance();
XMLEvent newLine = eventFactory.createDTD("\n");
// Create and write Start Tag
StartDocument startDocument = eventFactory.createStartDocument();
eventWriter.add(startDocument);
eventWriter.add(newLine);
StartElement configStartElement = eventFactory.createStartElement("","","Message");
eventWriter.add(configStartElement);
eventWriter.add(newLine);
XMLInputFactory inputFactory = XMLInputFactory.newFactory();
PatientDetails patientDetails= new PatientDetails();// Here I have called an POJO that return String and we add
String xml = patientDetails.getPatientDetails();
Source src = new StreamSource(new java.io.StringReader(xml));
XMLEventReader test = inputFactory.createXMLEventReader(src);
while(test.hasNext()){
XMLEvent event= test.nextEvent();
//avoiding start(<?xml version="1.0"?>) and end of the documents;
if (event.getEventType()!= XMLEvent.START_DOCUMENT && event.getEventType() != XMLEvent.END_DOCUMENT)
eventWriter.add(event);
// eventWriter.add(newLine);
test.close();
} //end of while
eventWriter.add(eventFactory.createEndElement("", "", "Message"));
eventWriter.add(newLine);
eventWriter.add(eventFactory.createEndDocument());
eventWriter.close();
System.out.println(bos.toString());
}//end of main
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