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This article shows you an example analysis of Springboot2.X using a file processor. The content is concise and easy to understand. It will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Preface: students who have a little sense of cleanliness about their Springboot project can see that when Springboot was created, choose this dependent role, file processor, Spring Configuration Processor, its function is similar to the spring.profiles.active in the main configuration file application.properties or application.yml, but the difference is With spring.profiles.avtive, the other configuration files you add can only be named in the format application- {name} .properties or application- {name} .yml, while using the file processor dependency, there is no restriction on the file name.

1. Pom relies on org.springframework.boot spring-boot-configuration-processor true2 and creates other configuration files love.you=aoxinlove.me=mdxllove.they=78

This configuration file is named application-.properties first, and then if you want to use the property values in it, you can only add it in application.propertiesz.

Spring.profiles.active=

In this way, we can get the value in the code class, as follows:

@ RestControllerpublic class DockerController {@ Value ("${love.you}") private String name; @ GetMapping ("/ test1") public String test1 () {return name;}} 3, file processor

Using the file processor, we can create a configuration file with any name, such as .properties, without introducing it into the application configuration file, we can use it directly, but only if we annotate @ PropertySource ("classpath:.properties") on the class that introduces its property value, so we can still use it. Delete the previous introduction of active.

@ RestController@PropertySource ("classpath:.properties") public class DockerController {@ Value ("${love.you}") private String name; @ GetMapping ("/ test1") public String test1 () {return name;}} 4, why use it?

Well, it doesn't look different, but it feels a little laborious, but it's not, because some development engineers directly want to use the properties in the configuration class, and do not want to rely on spring.profiles.active in the main configuration file, and this property value often does not distinguish between the development environment, simulation environment and online environment, so a small number of development engineers will be happy to use it.

The above is a sample analysis of Springboot2.X using a file processor. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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