nacos属性自动刷新的问题

一时失言乱红尘 2023-01-18 12:27 23阅读 0赞

**关于属性自动刷新**

*  两种方案，参考[https://juejin.cn/post/6876810580993245197][https_juejin.cn_post_6876810580993245197]
    
    1.  `@RefreshScope` \+ `@Value`
    2.  `@RefreshScope` \+ `@ConfigurationProperties`
 *  问题：在nacos上修改配置文件，程序成功刷新，但刷新一次后，报错longPolling Error，导致后续的修改无法刷新到。解决方案：将 `2.2.4`版本升级到`2.2.5`。
    
        
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
                    <version>2.2.5.RELEASE</version>
                </dependency>
        
                
                <dependency>
                    <groupId>com.alibaba.cloud</groupId>
                    <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
                    <version>2.2.5.RELEASE</version>
                </dependency>
 *  只自动刷新nacos默认加载的配置，如
    
    `${spring.application.name}.${file-extension:properties}`
    
    `${spring.application.name}-${profile}.${file-extension:properties}`
    
    而对于其他的自定义加载的配置，需要额外配置`refresh:true`，如下
    
        spring:
          profiles:
            active: dev
          application:
            name: liveness
        
          cloud:
            nacos:
              server-addr: 127.0.0.1:8848 
              username: nacos
              password: nacos
              discovery:
                namespace: xxxx
                group: liveness
              config:
                namespace: xxxx
                group: liveness
                file-extension: yml
                extension-configs:
                - dataId: ${ spring.profiles.active}-${ spring.application.name}-database.yml
                  group: liveness
                  refresh: true # 手动开启自动刷新
                - dataId: ${ spring.profiles.active}-${ spring.application.name}-redis.yml
                  group: liveness
                  refresh: true
                - dataId: ${ spring.profiles.active}-${ spring.application.name}-properties.yml
                  group: liveness
                  refresh: true
                refresh-enabled: true

[https_juejin.cn_post_6876810580993245197]: https://juejin.cn/post/6876810580993245197