手动监听nacos配置变更

添加基于nacos配置中心的maven依赖

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    <version>2.2.7.RELEASE</version>
</dependency>

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.cloud.context.environment.EnvironmentChangeEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;


@Slf4j
@Component
public class EvnChangeListener implements ApplicationListener<EnvironmentChangeEvent> {

    @Resource
    private ConfigurableEnvironment environment;

    @Override
    public void onApplicationEvent(EnvironmentChangeEvent event) {
        for (String key : event.getKeys()) {
            log.info("EvnChangeListener key:{} value:{}", key, environment.getProperty(key));
            if (StringUtils.equals("xxxx", key)) {
                // TODO
            }
        }
    }
}

spring-cloud-starter-alibaba-nacos-config 是SpringCloud Alibaba中一个组件，用于在 SpringCloud 应用中使用 Nacos 作为配置中心。基于SpringCloud的配置中心可以使用EnvironmentChangeEvent事件监听配置变更。