Java学习手册+面试指南：https://javaxiaobear.cn
Spring Cloud Zookeeper通过自动配置和绑定到 Spring 环境和其他 Spring 编程模型习惯用法，为 Spring Boot 应用程序提供Apache Zookeeper集成。通过一些简单的注释，您可以快速启用和配置应用程序内的常见模式，并使用 Zookeeper 构建大型分布式系统。提供的模式包括服务发现和分布式配置。
特征
- 服务发现：实例可以向 Zookeeper 注册，客户端可以使用 Spring 管理的 bean 发现实例
- 支持 Spring Cloud LoadBalancer - 客户端负载均衡解决方案
- 支持Spring Cloud OpenFeign
- 分布式配置：使用Zookeeper作为数据存储
官方地址：https://spring.io/projects/spring-cloud-zookeeper#lea
1、创建服务
创建名为：spring-cloud-zookeeper项目，
依赖如下：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.javaxiaobear</groupId>
<artifactId>javaxiaobear-zookeeper</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>spring-cloud-zookeeper</artifactId>
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.cloud.version>2023.0.0</spring.cloud.version>
<spring.boot.version>3.2.1</spring.boot.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>${spring.boot.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring.cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>2、服务提供者
服务提供者名字为：javaxiaobear-provider
1、添加依赖
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.javaxiaobear</groupId>
<artifactId>javaxiaobear-provider</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>javaxiaobear-provider</name>
<description>javaxiaobear-provider</description>
<properties>
<java.version>21</java.version>
<spring-cloud.version>2023.0.0</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
</dependency>
<!-- spring boot web 依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- lombok 依赖 -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>2、配置文件application.yml
server:
port: 8080 #端口
spring:
application:
name: product-service # 服务名称
# ZooKeeper 配置
cloud:
zookeeper:
discovery:
enabled: true # ?????? ZooKeeper ????????????? false ??
connect-string: ip:21813、服务代码
1、实体类
@Data
@AllArgsConstructor
@NoArgsConstructor
public class Product {
private Integer id;
private String productName;
private Integer productNum;
private Double productPrice;
}2、服务接口
public interface ProviderService {
/**
* 查询商品列表
*
* @return
*/
List<Product> selectProductList();
}3、服务实现类
@Slf4j
@Service
public class ProviderServiceImpl implements ProviderService {
@Override
public List<Product> selectProductList() {
log.info("商品服务查询商品信息...");
return Arrays.asList(
new Product(1, "小米手机", 1, 5800D),
new Product(2, "小熊面试手册", 1, 68.88D),
new Product(3, "小熊笔记", 5, 20.20D)
);
}
}4、控制层
@RestController
public class ProviderController {
@Autowired
private ProviderService providerService;
@GetMapping("/list")
public List<Product> selectList(){
return providerService.selectProductList();
}
}3、服务消费者
服务提供者名字为： javaxiaobear-consumer
1、添加依赖
依赖和提供者一样
2、添加配置文件
server:
port: 9090 # ??
spring:
application:
name: consumer-service # ????
# ?? ZooKeeper ????
cloud:
zookeeper:
discovery:
enabled: true # ?????? ZooKeeper ????????????? false ??
connect-string: ip:21813、服务代码
1、控制层
@RestController
@RequestMapping("/consumer")
public class ConsumerController {
@Autowired
private DiscoveryClient discoveryClient;
@GetMapping("/go")
public void order() {
//调用提供者服务
List<ServiceInstance> providerServer = discoveryClient.getInstances("product-service");
if (0 == providerServer.size()) {
return;
}
ServiceInstance serviceInstance = providerServer.get(0);
System.out.print(serviceInstance.getUri() + " --- ");
//获取接口路径
String url = serviceInstance.getUri() + "/list";
RestTemplate restTemplate = new RestTemplate();
//调用接口
String str = restTemplate.getForObject(url, String.class);
System.out.println(str);
}
}4、测试
访问路径：http://localhost:9090/consumer/go
标签：实战,spring,Zookeeper,boot,springframework,注册,org,cloud,javaxiaobear From： https://blog.51cto.com/xiaobear/11899820