Скачать или смотреть Transforming XML and XSD Files into a CSV Using Java and XSLT

Learn how to convert XML and XSD files into a CSV file using Java and XSLT. This guide provides step-by-step instructions for beginners.
---
This video is based on the question https://stackoverflow.com/q/77235954/ asked by the user 'Akito The Duck' ( https://stackoverflow.com/u/21324349/ ) and on the answer https://stackoverflow.com/a/77237615/ provided by the user 'Siebe Jongebloed' ( https://stackoverflow.com/u/3710053/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Transforming xml and xsd file into a csv file using java and a xsl file

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Transforming XML and XSD Files into a CSV Using Java and XSLT

In the world of data manipulation, transforming files from one format to another is a common task developers often need to tackle. One intriguing challenge is converting XML and XSD files into a CSV file using Java and XSLT (Extensible Stylesheet Language Transformations). If you're new to XSLT or looking for a way to accomplish this transformation, this guide is for you!

Problem Overview

Imagine you have the following files:

An XML file that contains structured data about a person.

An XSD file that defines the structure of your XML data, including any constraints on the data.

You want to extract this information and convert it into a CSV format that includes columns for the name, minimum occurrences, maximum occurrences, and the corresponding value from the XML file.

Example Files

Here’s what the example files look like:

XML File (xmlData.xml):

[[See Video to Reveal this Text or Code Snippet]]

XSD Definition:

[[See Video to Reveal this Text or Code Snippet]]

Desired Output

We want to produce a CSV file that looks like this:

[[See Video to Reveal this Text or Code Snippet]]

Solution Approach

Let's break this down into parts, starting from understanding the XML and the XSD, and how we can leverage Java and XSLT to facilitate the transformation.

Step 1: Setup Your Java Environment

Make sure you have the necessary libraries for XML processing in Java. You can use built-in Java libraries such as javax.xml.parsers and javax.xml.transform.

Step 2: Create the XSLT File

The XSLT (styles.xsl) file is crucial because it outlines how to transform your XML input into the desired CSV format. Here's an example of what the XSLT can look like:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Implement the Java Code

Now let's implement the Java method to transform the XML using the XSLT:

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Generate the CSV Output

After running the Java program with the provided XML and XSLT, your output.csv will look like this:

[[See Video to Reveal this Text or Code Snippet]]

This CSV file correctly reflects the required information extracted from the XML based on the specifications defined in the XSD.

Conclusion

Transforming XML and XSD files into a CSV format using Java and XSLT may seem daunting at first, especially for beginners. However, by understanding the structure of your XML and XSD and utilizing the power of XSLT, you can efficiently make these transformations. With the code snippets and detailed explanation provided, you're now equipped to convert XML data into your desired CSV format.

Happy coding!