springcloud-config

2019-07-11  本文已影响0人  jianshuqiang

一、config-server

1、配置文件:application.properties

server.port=8888
spring.cloud.config.server.git.uri=https://github.com/zzzqqq123/springcloudtest.git
spring.cloud.config.server.git.username=zhangq@webyun.cn
spring.cloud.config.server.git.password=zhangqiang@123

2、在启动类中添加注解

@EnableConfigServer

二、config-client

1、application.properties

spring.application.name=company-info-config-client
server.port=8889

2、bootstrap.properties

spring.cloud.config.uri=http://localhost:8888/
#git中的文件名称为application-dev.properties
spring.cloud.config.name=application
spring.cloud.config.profile=dev
spring.cloud.config.label=master

注意git仓库中的文件名称为:application-dev.properties

三、刷新

刷新的是客户端:http://localhost:8889/actuator/refresh(post请求)
前提是需要开启刷新端点

management.endpoints.web.exposure.include=*
#  health,info,env
management.endpoint.health.show-details=always

4、实现自动刷新的功能[简单实现]

@SpringBootApplication
@EnableScheduling
public class CompanyInfoConfigClientApplication {

    //定时更新数据
    private final ContextRefresher contextRefresher;
    CompanyInfoConfigClientApplication(ContextRefresher contextRefresher){
        this.contextRefresher=contextRefresher;
    }
    @Scheduled(fixedRate = 10*1000,initialDelay = 10*1000)
    public void refreshAuto(){
        Set<String> refresh = contextRefresher.refresh();
        Iterator<String> iterableSet=refresh.iterator();
        System.out.println("------------------》");
        while(iterableSet.hasNext()){
            System.out.println(iterableSet.next());
        }

    }

    public static void main(String[] args) {
        SpringApplication.run(CompanyInfoConfigClientApplication.class, args);
    }

}

5获取配置文件中的数据

package com.company.info.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RefreshScope//刷新
@RequestMapping("user")
public class UserController {
    @Value("${user.name}")
    private String name;
    @GetMapping("name")
    public String testValue(){
        return name;
    }
}

6注意:

由于config一般采用集群配置,所以我们可以采用,单个依次重启服务的方式,实现配置文件生效

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