SpringCloud֮Zookeeper | 易学教程

什么是zk

实现服务注册

spring:   application:     name: whotw-zk   cloud:     zookeeper:       connect-string: localhost:2181 server:   port: 8080

pom

多加如下依赖

 <!--监控文件刷新-->         <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-starter-actuator</artifactId>         </dependency>         <!--服务发现与注册-->         <dependency>             <groupId>org.springframework.cloud</groupId>             <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>         </dependency>         <!--服务配置中心-->         <dependency>             <groupId>org.springframework.cloud</groupId>             <artifactId>spring-cloud-starter-zookeeper-config</artifactId>         </dependency>

StartApp

@SpringBootApplication //注解自动将服务注册到consul或zk上 @EnableDiscoveryClient public class StartApp {     public static void main(String[] args) {         SpringApplication.run(StartApp.class, args);     } } UserController @RestController public class UserController {     @Value("${spring.application.name}")     private String instanceName;     @Autowired     private DiscoveryClient discoveryClient;      @GetMapping("/services")     public List<String> serviceUrl() {         //服务服务信息         List<ServiceInstance> list = discoveryClient.getInstances(instanceName);         List<String> services = new ArrayList<>();         if (list != null && list.size() > 0) {             list.forEach(serviceInstance -> {                 services.add(serviceInstance.getUri().toString());             });         }         return services;     } }

启动项目后自动注册到zk,要启动zkServer先
使用zk可视化工具查看服务注册信息

json格式化网站

实现配置中心

先启动zkServer
使用zkCli创建节点信息

[zk: localhost:2181(CONNECTED) 16] create /config [zk: localhost:2181(CONNECTED) 17] create /config "" Created /config [zk: localhost:2181(CONNECTED) 18] create /config/app-dev/name "dev" Node does not exist: /config/app-dev/name [zk: localhost:2181(CONNECTED) 19] create /config/app-dev "" Created /config/app-dev [zk: localhost:2181(CONNECTED) 20] create /config/app-dev/name "dev" Created /config/app-dev/name [zk: localhost:2181(CONNECTED) 21] create /config/app-uat/name "uat" Node does not exist: /config/app-uat/name [zk: localhost:2181(CONNECTED) 22] create /config/app-uat [zk: localhost:2181(CONNECTED) 23] create /config/app-uat "" Created /config/app-uat [zk: localhost:2181(CONNECTED) 24] create /config/app-uat/name "uat" Created /config/app-uat/name [zk: localhost:2181(CONNECTED) 25] create /config/app "app" Created /config/app [zk: localhost:2181(CONNECTED) 26]

zk可视化工具查看创建的信息

文章来源: https://blog.csdn.net/qq_40673786/article/details/91048934

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