Java Eclipse XML and DTD Validate Primer Tutorial

Java Eclipse XML and DTD Validate Primer Tutorial

Java Eclipse XML and DTD Validate Primer Tutorial

The XML Validation subject area is quite complex. The reason for this is that when there is intelligence in your data, as XML often has, it can be organized in a variety of ways. One approach with XML data is to oversee its integrity with the use of DTD schemas, which is like a blueprint for your XML data, outlining how it should be structured to pass validation checks. If you know your XML data passes the validation tests implied by the DTD then you are likely to have a very successful project, if the DTD has been structured methodically and has enough flexibility to express all the complication needed to satisfy business logic requirements.

Java has functionality to help with validating XML in a variety of different scenarios, as do other languages such as Python, for example. Here, as with Python, we are using a SAX approach, and for this tutorial there were two huge contributions from:

  • the Eclipse IDE XML examples provided
  • a very good tutorial here about validating XML against a real existing DTD

In this primer tutorial you can see some Java XML and DTD validation program in action on a Mac laptop.

Link to downloadable Java (via Eclipse) programming source code for XML and DTD validation XMLPlusDTDValidate.java

Link to sample Eclipse DTD data Invoice.dtd

Link to sample Eclipse XML data Invoice.xml

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