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Editorial Team
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Asked: 2026-05-28T20:15:36+00:00

What is the fastest and most efficient way to create XML documents in Java?

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What is the fastest and most efficient way to create XML documents in Java? There is a plethora of libraries out there (woodstox, xom, xstream…), just wondering if any one has any input. Should I go with code generation approach (since xml schema is well known)? Or reflection approach at run-time?

Edited with Additional information:

  1. Well defined XML Schema is available and rarely changes
  2. Requirement is to convert a java object to XML, and not vice versa
  3. Thousands of java objects to XML per second
  4. Code generation, code complexity, configuration, maintenance etc. is second to higher performance.
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  1. Editorial Team

    If I was to create a very simple XML content, I would stick to the JDK api only, introducing no third party dependencies.

    So for simple XML and if I was to map XML file to Java classes (or vice-versa), I would go for JAXB. See this tutorial to see how easy it is.

    Now.

    If I was to create some more sophisticated XML output with constant scheme, I would use some templating engine, Freemarker perhaps. Thymeleaf looks nice as well.

    And finally.

    If I was to create huge XML files very effectively, I would use SAX parser.

    I hope you understand now, that you have plenty of possibilities – choose the best match for your needs 🙂

    And have fun!

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