耐心和持久胜过激烈和狂热——拉封丹
分享一个springboot动态配置框架：https://github.com/Code2Life/spring-boot-dynamic-config
在一些场景下可以用到热更新配置
轻量方便，简单好用
GAV
<dependency> <groupId>top.code2life</groupId> <artifactId>spring-boot-dynamic-config</artifactId> <version>1.0.9</version> </dependency>
添加注解：@DynamicConfig 以及@Value
import lombok.Data; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; import top.code2life.config.DynamicConfig; import java.util.Set; @Data @Component @DynamicConfig // add annotation here ! public class DynamicFeatures { @Value("${dynamic-test-plain:default}") private String plainValue; @Value("#{@featureGate.convert('${dynamic-feature-conf}')}") private Set<String> someBetaFeatureConfig; // @DynamicConfig // adding annotation here also works! @Value("#{@testComponent.transform(${dynamic.transform-a:20}, ${dynamic.transform-b:10})} ") private double transformBySpEL; public double transform(double t1, double t2) { return t1 / t2; } } // file: application-profile.yml // ============================ // dynamic-test-plain: someVal # kebab-case is recommended // dynamicFeatureConf: a,b,c # camelCase compatible // dynamic: // transform-a: 100 // transform-b: 10
在配置pojo上加上注解@ConfigurationProperties
import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Configuration; import top.code2life.config.DynamicConfig; import java.util.Map; @Data @DynamicConfig // add annotation here ! @Configuration @ConfigurationProperties(prefix = "my-prop") public class TestConfigurationProperties { private String str; private Double doubleVal; private Map<String, Object> mapVal; } // file: application-another-profile.yml // ============================ // my-prop: # or myProp, relax binding supported // str: someVal // double-val: 100.0 // mapVal: // k: v
启动项目
java -jar your-spring-boot-app.jar --spring.config.location=/path/to/config
