如何使用Java解析XML

Question

I'm calling a soap webservice from my java application. I get response and I want to parse it and get data. The problem is that field <tranData> , contains structure with >< instead of <> . How can I parse this document to get data from field <tranData> ?

This is response structure:

<response>
<Portfolio>
    <ID>1</ID>
    <holder>2</holder>
 </Portfolio>
<tranData>     &lt;responseOne&gt;&lt;header&gt;&lt;code&gt;1&lt;/code&gt;&lt;/header&gt;&lt;/responseOne&gt;</tranData>

Please remember that, this is only a example of response, and the amount of data will be much bigger, so the solution should be fast.

Answer 1

What you show us is the actual document as it is received over the wire, right? So <tranData> contains an XML string that has been escaped to not interfere with the markup of the rest of the containing document.

When you read the content of the <tranData> element, the XML processor will 'unescape' the string and give you the 'original' value:

<responseOne><header><code>1</code></header></responseOne>

What you do with that value is a different story. You can parse it as yet another XML document and retrieve the value of the <code> element, or just pass the string along to some other processing step.