Spring Boot项目整合Nacos, openfeign,hystrix。
整合步骤如下:
- 在
pom.xml
中添加Nacos、OpenFeign、Hystrix的依赖:
<!-- Nacos Discovery -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<!-- OpenFeign -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<!-- Hystrix -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>
- 在
application.properties
或application.yml
中配置Nacos服务器地址:
spring:
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848
- 启动类上添加
@EnableFeignClients
和@EnableHystrix
注解:
@SpringBootApplication
@EnableFeignClients
@EnableHystrix
public class YourApplication {
public static void main(String[] args) {
SpringApplication.run(YourApplication.class, args);
}
}
- 创建Feign客户端接口,并添加
@FeignClient
注解:
@FeignClient(name = "service-provider", fallback = ServiceProviderFallback.class)
public interface ServiceProviderClient {
@GetMapping("/data")
String getData();
}
@Component
public class ServiceProviderFallback implements ServiceProviderClient {
@Override
public String getData() {
return "Fallback message";
}
}
- 在需要使用Feign客户端的地方注入:
@Autowired
private ServiceProviderClient serviceProviderClient;
以上步骤可以使你的Spring Boot项目整合Nacos作为服务注册中心,使用OpenFeign实现服务间调用,并使用Hystrix实现服务的熔断机制。
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