Spring boot源码分析-ConfigurationProperties

xiaoxiao2021-02-28  8

Spring boot源码分析-ConfigurationProperties(11)

该功能可以实现批量添加Properties参数 @ConfigurationProperties(locations = "classpath:test.properties", prefix = "leone") public class TestProperties { private String name; private int age; private Mark mark; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public Mark getMark() { return mark; } public void setMark(Mark mark) { this.mark = mark; } } @SpringBootApplication @EnableConfigurationProperties(TestProperties.class) public class Chapter2Application { public static void main(String[] args) { SpringApplication.run(Chapter2Application.class, args); } }

test.properties

leone.name=infotech leone.age=99 leone.mark.dmark=dddddd 工作原理 前面我们已经分析过了,spring的starter再启动的时候回加载configure

那么我们去看看spring-boot-autoconfigure的配置文件spring.factories 可以看到org.springframework.boot.autoconfigure.EnableAutoConfiguration的配置中有一个org.springframework.boot.autoconfigure.context.ConfigurationPropertiesAutoConfiguration继续看进去,calss上有个注解EnableConfigurationProperties,再进去发现是一个EnableConfigurationPropertiesImportSelector 这时候我们就知道了,在启动的过程中 spring会去EnableConfigurationPropertiesImportSelector来注册bean 并且处理

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