Spring Boot是一种快速构建应用程序的框架,而Spring Cloud是一组用于构建分布式系统的工具集。它们可以方便地进行整合,下面给出一个简单的示例:

  1. 创建一个Spring Boot项目,添加以下依赖:
<!-- Spring Cloud -->
<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-dependencies</artifactId>
   <version>2020.0.2</version>
   <type>pom</type>
   <scope>import</scope>
</dependency>

<!-- Eureka Server -->
<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

<!-- Eureka Discovery -->
<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
  1. 在application.yml中配置Eureka Server:
server:
  port: 8761

eureka:
  instance:
    hostname: localhost
  client:
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
  1. 创建一个简单的服务提供者,添加以下依赖:
<!-- Spring Cloud -->
<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-dependencies</artifactId>
  <version>2020.0.2</version>
  <type>pom</type>
  <scope>import</scope>
</dependency>

<!-- Eureka Discovery -->
<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
  1. 在application.yml中配置服务提供者:
server:
  port: 8080

spring:
  application:
    name: example-service

eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/
  1. 创建一个简单的服务消费者,添加以下依赖:
<!-- Spring Cloud -->
<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-dependencies</artifactId>
  <version>2020.0.2</version>
  <type>pom</type>
  <scope>import</scope>
</dependency>

<!-- Eureka Discovery -->
<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
  1. 在application.yml中配置服务消费者:
server:
  port: 8081

spring:
  application:
    name: example-client

eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka/
  1. 创建服务提供者的接口:
@RestController
@RequestMapping("/api")
public class ExampleController {

    @GetMapping("/hello")
    public String hello() {
        return "Hello, World!";
    }

}
  1. 在服务消费者中调用服务提供者:
@RestController
public class ExampleController {

    @Autowired
    private RestTemplate restTemplate;

    @GetMapping("/hello")
    public String hello() {
        String url = "http://example-service/api/hello";
        return restTemplate.getForObject(url, String.class);
    }

}
  1. 启动Eureka Server、服务提供者和服务消费者,访问http://localhost:8081/hello,即可看到"Hello, World!"的输出。

这是一个简单的示例,实际上Spring Cloud还有很多组件,比如Config、Gateway、Feign等,可以根据具体的需求进行整合。