@RefreshScope动态配置，不重启服务使配置文件生效

写在开始:一个搬砖程序员的随缘记录

一、项目配置

1、加入依赖2、加入配置3、配置类4、controller

   org.springframework.boot
    spring-boot-starter-actuator
 

application.yml

#使热配置生效
management:
  endpoints:
    web:
      exposure:
        include: refresh
#自定义更新参数        
config:
  name: admin

package com.cn.easycode.config;

import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.context.annotation.ScopedProxyMode;
import org.springframework.stereotype.Component;


@RefreshScope
@Component
@Data
@ConfigurationProperties(prefix = "config")
public class ValueConfig {

    private String uuid;
}

package com.cn.easycode.controller;

import com.cn.easycode.config.ValueConfig;
import lombok.extern.slf4j.Slf4j;
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.cloud.context.refresh.ContextRefresher;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
@Slf4j
public class TestController {
    @Autowired
    private ValueConfig valueConfig;

    @Autowired
    private ContextRefresher contextRefresher;

    
    @RequestMapping(path = "/show")
    public String show() {
        return valueConfig.getUuid();
    }


    
    @RequestMapping(path = "/refresh")
    public String refresh() throws Exception {
        new Thread(() -> contextRefresher.refresh()).start();
        return show();
    }
}

启动项目修改配置就可以看到效果

Over