Consul 配置中心

spring:
  cloud:
    consul:
      host: ${register.center.host}
      port: ${register.center.port}
      enabled: true
      scheme: HTTP
      discovery:
        #        health-check-path: /actuator/health #检测实例健康
        #        health-check-interval: 10s
        #配置实例地址
        #        register: true # 自动注册
        service-name: ${spring.application.name} #实例名称
      # 配置中心  https://www.bilibili.com/video/BV1CV411E7NS?p=5&vd_source=973117b270742b5caf7a371f661d0495
      config:
        enabled: true # 开启注册中心
        format: yaml
        prefix: archimaster # 默认是config
        default-context: ea # 默认是application
        data-key: xx # 默认是data
        profile-separator: '-' # 这里的原理还不太清楚，源代码默认是","但init方法写的是如果format是key_value则是"-"
        # 找到配置中心文件的路径就是：archimaster/ea/xx
        watch:
          enabled: true
          wait-time: 1_000 # 1秒刷新变更

import lombok.extern.slf4j.Slf4j;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;


@RunWith(SpringRunner.class)
@WebAppConfiguration // 启动web运行环境 可有可无
@SpringBootTest(classes = {ArchiMasterApiStarter.class}) // 编写测试类
@Slf4j
@ActiveProfiles({"dev"})
@Configuration
@RefreshScope // Junit测试不会刷新@Value的值，Spring容器内部加入此注解就可以自动更新
public class ArchiMasterTest {


    //@Value("${logging.level.root}")
    @Value("${getAllAccount}")
    private String logLevel;

    @Value("${spring.cloud.consul.host}")
    private String host;

    @Value("${spring.cloud.consul.port}")
    private String port;

    @Value("${spring.cloud.consul.config.prefix}")
    private String prefix;

    @Value("${spring.cloud.consul.config.default-context}")
    private String defaultContext;

    @Value("${spring.cloud.consul.config.data-key}")
    private String dataKey;

    @Value("${testname}") // 这里在配置文件中的名称哦
    private String testname;


    @Test
    public void TectConsulGetConf() throws InterruptedException {
        // todo 不知道为什么Consul配置中心在配置内容发生变更的时候，junit启动的项目遇到错误2023-09-20 15:59:57.418|ERROR||||||[configWatchTaskScheduler-4]|o.s.b.SpringApplication - [log,101] - Application run failed
        //java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.profiles.active' in value "archi-master-api-${spring.profiles.active}"
        for (int i = 0; i < 10; i++) {

            System.out.println(
                    String.format("请访问%s，侧边栏找到Key/Value，创建目录层级是%s，选择格式yaml 填入内容：testname=嗨嗨嗨",
                            host + ":" + port,
                            prefix + "/" + defaultContext + "/" + dataKey
                    ));
            System.out.println("所以我们拿到的Consul配置中心的配置就是：" + testname);
            System.out.println(logLevel);

            Thread.sleep(10_000);
        }
    }
}