Reading XMl and filtering through the notes

4 次查看（过去 30 天）

Stephan Richtering 2015-11-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/253512-reading-xml-and-filtering-through-the-notes

编辑： Walter Roberson 2015-11-7

Hello,

Given that much isn't visible when trying to use the node structure in Matlab I am finding it hard to go visualise what I'm doing. It would porbbaly be easier to do in Java!

My issue it probably a simple one to resolve but strugling to get it right. I have the

XML script:

<Assumptions>
  <Scalar>
    <AsOfDate>
      <XAxis>'AsOfDate'</XAxis>
      <YAxis>85000</YAxis>
    </AsOfDate>
    <Misc>
      <XAxis>'Misc'</XAxis>
      <YAxis>1.0</YAxis>
    </Misc>
  </Scalar>
    <D1>
    <FTB>
      <XAxis>{1,2,3}</XAxis>
      <YAxis>{0.1,0.2,0.3}</YAxis>
    </FTB>
   </D1>
  </Assumptions>

I've tried to use xPath although I think given the structure is fairly simple I just need to cycle through each of the nodes and pull out the relevant values.

% get the xpath mechanism into the workspace
import javax.xml.xpath.*
factory = XPathFactory.newInstance;
xpath = factory.newXPath;
% compile and evaluate the XPath Expression
expression = xpath.compile('Assumptions/Scalar');%'AddressBook/Entry');
ScalarNodes = expression.evaluate(Assumptions, XPathConstants.NODESET);
AsOfNode = ScalarNodes.item(0).getChildNodes;
AsOfNode.getTextContent
XNode = AsOfNode.item(0);
XNode.getTextContent

This code was more to try to visualise the outputs.

AsOfNode.getTextContent

In the instance above it gives me the information in Node AsOfDate and Mis. However I don't understand why I get get the information from each node as tried below:

XNode.getTextContent

Maybe I'm constructing incorrectly but I can't get my head around. Essentially I want to go through every node to get the structure as follows: