Reading JSON Files in Java Spring Boot

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Summary: Learn how to efficiently read JSON files in Java Spring Boot using various methods and libraries. Discover different approaches to parse JSON data and integrate it seamlessly into your Spring Boot applications.
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When working with Java Spring Boot, handling JSON files is a common requirement for data exchange and configuration purposes. Fortunately, Spring Boot provides several methods to read JSON files effortlessly. Below are some approaches you can take:

Using Jackson ObjectMapper

Spring Boot integrates Jackson, a powerful JSON parsing library, by default. You can utilize the ObjectMapper class from Jackson to read JSON files. Here's a basic example:

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Using Spring's ResourceLoader

Spring Framework provides the ResourceLoader interface, which can be used to load resources such as JSON files. Here's how you can use it in Spring Boot:

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Using Spring Boot's @Value Annotation

If the JSON file contains configuration properties, you can leverage Spring Boot's @Value annotation along with @PropertySource to read the file directly into Java objects. Here's a simplified example:

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Conclusion

Reading JSON files in Java Spring Boot can be achieved using various methods, each suited to different use cases. Whether you prefer Jackson's ObjectMapper, Spring's ResourceLoader, or Spring Boot's @Value annotation, you have plenty of options to efficiently parse JSON data and integrate it into your Spring Boot applications.