springboot配置-集成nacos

谁践踏了优雅 2022-04-24 00:48 372阅读 0赞

# springboot配置-集成nacos #

### 文章目录 ###

*  springboot配置-集成nacos
 *   *   *  1.安装信息
         *  2.配置发布与获取
         *  3.服务注册与消费服务

nacos仓库： [https://github.com/alibaba/nacos][https_github.com_alibaba_nacos]

nacos介绍文档：[https://nacos.io/zh-cn/docs/architecture.html][https_nacos.io_zh-cn_docs_architecture.html]

nacos使用例子：[https://github.com/nacos-group/nacos-examples][https_github.com_nacos-group_nacos-examples]

springboot配置-集成nacos，例子代码下载

[springboot-nacos-consumer][]

[springboot-nacos][]

### 1.安装信息 ###

**导入nacos-mysql.sql**![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70]  
**启动nacos 控制台**![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70 1]

### 2.配置发布与获取 ###

1）配置发布2种方式：调用openapi；控制台操作  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70 2]

2）新建命名空间  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70 3]

3）不同namespace，不同dataId,不同groupId获取配置情况

@NacosPropertySource中指定dataId，groupId

//加载 dataId 为 example 的配置源，并开启自动更新
    //@NacosPropertySource(dataId = "example",autoRefreshed = true)
    //加载不同groupId的配置
    //@NacosPropertySource(dataId = "example", groupId ="test",autoRefreshed = true)
    //加载不同dataId的配置
    @NacosPropertySource(dataId = "example2",autoRefreshed = true)

配置文件中指定namespace 的ID

#根据命名空间ID,加载不同namespace的配置
    #nacos.config.namespace=a8128f5b-7f87-42c5-9ffd-c4f17da7ee34

测试：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70 4]

### 3.服务注册与消费服务 ###

1)服务注册  
配置文件指定：

server.port= 8080
    #访问的根路径
    server.context-path=/springboot-nacos
    #Nacos服务名
    spring.application.name=UserService
    #nacos服务端的地址
    nacos.config.server-addr=127.0.0.1:8848
    #discovery地址
    nacos.discovery.server-addr=127.0.0.1:8848
    #根据命名空间ID,加载不同namespace的配置
    #nacos.config.namespace=a8128f5b-7f87-42c5-9ffd-c4f17da7ee34

服务启动时注册：

@SpringBootApplication
    public class SpringbootNacosApplication {
        @NacosInjected
        private NamingService namingService;
        @Value("${server.port}")
        private int serverPort;
    
        @Value("${spring.application.name}")
        private String applicationName;
        //curl -X PUT 'http://127.0.0.1:8848/nacos/v1/ns/instance?serviceName=xxx&ip=127.0.0.1&port=8080'
        @PostConstruct
        public void registerInstance() throws NacosException {
            if(CollectionUtils.isEmpty(namingService.getAllInstances(applicationName))){
                namingService.registerInstance(applicationName,"127.0.0.1",serverPort);
            }
        }
        public static void main(String[] args) {
            SpringApplication.run(SpringbootNacosApplication.class, args);
        }
    
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70 5]  
2)服务消费  
通过NamingService发现选择服务

Instance instance = namingService.selectOneHealthyInstance("UserService");

通过RestTemplate调用获取结果  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3loaHloaHloaHloaA_size_16_color_FFFFFF_t_70 6]

[https_github.com_alibaba_nacos]: https://github.com/alibaba/nacos
[https_nacos.io_zh-cn_docs_architecture.html]: https://nacos.io/zh-cn/docs/architecture.html
[https_github.com_nacos-group_nacos-examples]: https://github.com/nacos-group/nacos-examples
[springboot-nacos-consumer]: https://github.com/2010yhh/springBoot-demos/tree/master/springboot-nacos-consumer
[springboot-nacos]: https://github.com/2010yhh/springBoot-demos/tree/master/springboot-nacos
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