javaxmljdomjdom-2

Get a specific child name in an XML file

I have an xml file like this:

<?xml version="1.0" encoding="UTF-8"?>
<ClOrdIDS><ClOrdID id="1"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>23.0</Price><Order_Type>Limit</Order_Type><Side>SELL</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID><ClOrdID id="2"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>13.0</Price><Order_Type>Limit</Order_Type><Side>SELL</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID><ClOrdID id="3"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>13.0</Price><Order_Type>Limit</Order_Type><Side>BUY</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID><ClOrdID id="4"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>13.0</Price><Order_Type>Limit</Order_Type><Side>BUY</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID><ClOrdID id="5"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>13.0</Price><Order_Type>Limit</Order_Type><Side>BUY</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID><ClOrdID id="6"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>13.0</Price><Order_Type>Limit</Order_Type><Side>BUY</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID><ClOrdID id="7"><Account>1005390</Account><Symbol>SAP</Symbol><SecurityID>4663789</SecurityID><SecurityExchange>XETR</SecurityExchange><Price>13.0</Price><Order_Type>Limit</Order_Type><Side>SELL</Side><Order_Quantity>0.001</Order_Quantity></ClOrdID></ClOrdIDS>

How can I extract the elements of child with ClOrdID id="3" ?

THANKS

Solution

  • Since the tags on the question are JDOM, not DOM, you could use JDOM instead ;-) :

    Document doc = new SaxBuilder().build(xmlFile);
XPathExpression<Element> xpe = XPathFactory.instance()
          .compile("/ClOrdIDS/ClOrdID[@id=\"3\"]", Filters.element());
List<Element> idThrees = xpe.evaluate(doc);