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title: Create Placeholders for Spring Configurations
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# Create Placeholders for Spring Configurations

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

The Spring module in a Mule app can use any sort of Spring configurations. You can define the Spring
property placeholders in a `.properties` file (for example, `spring-properties.properties`) that are
fully interoperable with the Spring module.

The properties in the file takes this form:

springPropertyA=springPropertyAValue springPropertyB=springPropertyBValue

In Anypoint Studio, you must store the file in the project directory for your Mule app:

- `/src/main/resources`

You can add the `.properties` file to your Mule app through the Global Element called Configuration
Properties. The XML for this element looks like this:

`<configuration-properties file="spring-properties.properties" doc:name="Spring Property Placeholders" doc:id="07ee5c11-bc54-4d55-91b8-ce02f743cb7a" />`

Note that you cannot use a YAML file to create Spring property placeholders, as you can for
non-Spring modules.

## See Also

- [Configure Properties](https://docs.mulesoft.com/mule-runtime/4.12/configuring-properties)

- [Create Property Placeholders for Mule Apps](https://docs.mulesoft.com/mule-runtime/4.12/mule-app-properties-to-configure)