柚子快报邀请码778899分享：基于Consul的配置中心
上一篇
pring boot2X整合Consul一服务注册与发现
将consul作为springboot的配置中心
1.添加依赖
2.启用，配置bootstrap.properties | yml
server.port=8010
spring.application.name=myconsul
spring.cloud.consul.host=192.168.99.100
spring.cloud.consul.port=8500
spring.cloud.consul.discovery.health-check-path=/actuator/health
spring.cloud.consul.discovery.service-name=${spring.application.name}
spring.cloud.consul.discovery.heartbeat.enabled=true
spring.cloud.consul.discovery.prefer-ip-address=true
spring.cloud.consul.config.enabled=true
spring.cloud.consul.config.profile-separator=-
spring.cloud.consul.config.format=properties
spring.cloud.consul.config.prefix = config
spring.cloud.consul.config.data-key = data
# 启用配置自动刷新
spring.cloud.consul.config.watch.enabled=true
# 【疑问】请求 consul api 的延迟，单位：秒
spring.cloud.consul.config.watch.wait-time=1
# 刷新频率，单位：毫秒
spring.cloud.consul.config.watch.delay=10000
3.创建配置文件
使用@ConfigurationProperties 特性，标记类为配置文件
package com.xyz.provider;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.stereotype.Component;
@ConfigurationProperties("order")
@RefreshScope
@Data
@Component
public class OrderProperties {
private Integer discount = 100;
}
4.控制器
package com.xyz.provider.controller;
import com.xyz.provider.OrderProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class demoController {
@Autowired
private OrderProperties orderProperties;
@RequestMapping("/search")
public String searchDiscount() {
return orderProperties.toString();
}
}
5.启动类
package com.xyz.provider;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@EnableDiscoveryClient
@SpringBootApplication
public class ProviderApplication {
public static void main(String[] args) {
SpringApplication.run(ProviderApplication.class, args);
}
}
6.测试
启动Consul
启动项目
在浏览器打开Consul页面 http://192.168.99.100:8500
添加配置
测试 GTE http://172.27.0.17:8010/search
输出
OrderProperties(discount=60)
修改配置，再次执行，会发现配置会自动修改
通过单线程 ThreadPoolTaskScheduler 自动修改配置
柚子快报邀请码778899分享：基于Consul的配置中心
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