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Michael Scharhag
Michael Scharhag is a Java Developer, Blogger and technology enthusiast. Particularly interested in Java related technologies including Java EE, Spring, Groovy and Grails.

Quick tip: Referencing other Properties in Spring

In Spring property (or yaml) files we can reference other properties using the ${..} syntax.

For example:

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external.host=https://api.external.com
external.productService=${external.host}/product-service
external.orderService=${external.host}/order-service

If we now access the external.productService property (e.g. by using the @Value annotation) we will get the value https://api.external.com/product-service.

For example:

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@Value("${external.productService}")
private String productServiceUrl; // https://api.external.com/product-service

This way we can avoid duplication of commonly used values in property and yaml files.

Published on Java Code Geeks with permission by Michael Scharhag, partner at our JCG program. See the original article here: Quick tip: Referencing other Properties in Spring

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