Springboot使用@RefreshScope注解实现配置文件的动态加载

本文主要介绍了Springboot使用@RefreshScope注解实现配置文件的动态加载，文中通过示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

pom.xml

4.0.0org.springframework.bootspring-boot-starter-parent2.4.6com.xiaobudemo-for-mybatis-plus0.0.1-SNAPSHOTdemo-for-mybatis-plusdemo-for-mybatis-plus1.82020.0.3org.springframework.bootspring-boot-starter-weborg.springframework.bootspring-boot-starter-testtestasmorg.ow2.asmcom.baomidoumybatis-plus-boot-starter3.4.2org.projectlomboklombok1.16.10cn.hutoolhutool-all5.3.2io.springfoxspringfox-swagger22.9.2guavacom.google.guavaio.springfoxspringfox-swagger-ui2.9.2com.google.guavaguava29.0-jrecom.alibabaeasyexcel2.0.2junitjunitcom.xuxuelixxl-job-core2.3.0MysqL mysql-connector-javaorg.springframework.cloudspring-cloud-starter-configorg.springframework.bootspring-boot-starter-actuatororg.springframework.cloudspring-cloud-starter-bootstraporg.springframework.cloudspring-cloud-dependencies${spring-cloud.version}pomimportsrc/main/resourcessrc/main/java**/*.xmltrueApporg.springframework.bootspring-boot-maven-plugin2.4.5

properties

########## Mybatis 自身配置 ########## logging.level.com.xiaobu=debug mybatis-plus.type-aliases-package=com.xiaobu.entity mybatis-plus.mapper-locations=classpath:com/xiaobu/mapper/xml/*.xml # 控制台打印sql 带参数无法写入文件 #mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl # 将sql 写入文件带参数 mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.slf4j.Slf4jImpl #集成MysqL 数据库的配置 spring.datasource.driverClassName=com.MysqL.cj.jdbc.Driver spring.datasource.url=jdbc:MysqL://localhost:3306/master0?useSSL=false&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&serverTimezone=Asia/Shanghai spring.datasource.username=root spring.datasource.password=root #测试动态刷新配置 order.pay-timeout-seconds=9999 order.create-frequency-seconds=600 #暴露内置的刷新配置文件url，这个必须写，否则无法刷新配置文件 management.endpoints.web.exposure.include=refresh #management.endpoints.web.exposure.include=env,refresh#management.endpoints.web.exposure.include=env,refresh

启动类

package com.xiaobu; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.context.properties.ConfigurationPropertiesScan; /** * @author 小布 */ @SpringBootApplication @ConfigurationPropertiesScan public class DemoForMybatisPlusApplication { public static void main(String[] args) { SpringApplication.run(DemoForMybatisPlusApplication.class, args); } }

配置类

package com.xiaobu.config; import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.cloud.context.config.annotation.RefreshScope; import org.springframework.stereotype.Component; /** * @author 小布 */ @Component @ConfigurationProperties(prefix = "order") @RefreshScope @Data public class OrderProperties { /** * 订单支付超时时长，单位：秒。 */ private Integer payTimeoutSeconds; /** * 订单创建频率，单位：秒 */ private Integer createFrequencySeconds; }

controller

package com.xiaobu.controller; import com.xiaobu.config.OrderProperties; 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.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; /** * The type Refresh controller. * * @author 小布 * @version 1.0.0 * @className RefreshController.java * @createTime 2021年09月06日 15:38:00 */ @RestController @RequestMapping("refresh") @RefreshScope public class RefreshController { @Autowired private OrderProperties orderProperties; @Value(value = "${order.pay-timeout-seconds}") private Integer payTimeoutSeconds; /** * Test string. * * @return the string */ @GetMapping("test") public String test() { return "payTimeoutSeconds:" + payTimeoutSeconds; } @GetMapping("test01") public String test01() { return orderProperties.toString(); } }