Spring-Cloud Nacos配置项监听 Listener

浅浅的花香味﹌ 2021-06-22 15:39 2552阅读 0赞

package com.saic.cloud.demo.listener;
    
    import ch.qos.logback.classic.Level;
    import ch.qos.logback.classic.LoggerContext;
    import com.alibaba.cloud.nacos.NacosConfigManager;
    import com.alibaba.cloud.nacos.NacosConfigProperties;
    import com.alibaba.nacos.api.config.listener.Listener;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.InitializingBean;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.cloud.context.config.annotation.RefreshScope;
    import org.springframework.context.annotation.Configuration;
    
    import java.util.concurrent.Executor;
    
    @RefreshScope
    @Configuration
    public class NacosListener implements InitializingBean {
    
        @Value("${spring.application.name}")
        private String appName;
        @Autowired
        private NacosConfigManager nacosConfigManager;
        @Autowired
        private NacosConfigProperties configProperties;
    
    //    @NacosConfigListener(dataId = "${spring.application.name}.yaml")
    //    public void onMessage(String config) {
    //        System.out.println();
    //    }
    
        @Override
        public void afterPropertiesSet() throws Exception {
            System.out.println();
            nacosConfigManager.getConfigService().addListener(appName + ".yaml", configProperties.getGroup(),
                    new Listener() {
                        @Override
                        public Executor getExecutor() {
                            return null;
                        }
    
                        @Override
                        public void receiveConfigInfo(String configInfo) {
                            //cloud.logger.level  cloud.logger.package
                            LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
                            loggerContext.getLogger("root").setLevel(Level.toLevel(""));
                            System.out.println();
                        }
                    });
        }
    }