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This article introduces the relevant knowledge of "what is the method of Spring Cloud custom boot attribute source". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The default property source for the external configuration added by the boot process is Config Server, but you can add a bean of type PropertySourceLocator to the boot

Add additional sources in the context (via spring.factories). You can use this method to insert additional properties from other servers or databases.

As an example, consider the following trivial custom locators:

Configurationpublic class CustomPropertySourceLocator implements PropertySourceLocator {@ Override public PropertySource locate (Environment environment) {return new MapPropertySource ("customProperty", Collections.singletonMap ("property.from.sample.custom.source", "worked as intended");}}

The Environment passed in is the Environment of the ApplicationContext to be created, which provides us with additional attribute sources. It will already have normal

Spring Boot provides sources of resources, so you can use them to locate the

The property source that is scheduled for this Environment (for example, by binding it to the spring.application.name, as the Config Server property source locator does by default).

If you create a jar in this class, then add a META-INF/spring.factories that contains:

Org.springframework.cloud.bootstrap.BootstrapConfiguration=sample.custom.CustomPropertySourceLocator

Then the "customProperty" PropertySource will appear in any application that contains the jar in its classpath.

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