[Java知识库]SpringCloud系列：springboot改造集成nacos

依赖：

		<dependency>
			<groupId>com.alibaba.cloud</groupId>
			<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
		</dependency>
		<dependency>
			<groupId>com.alibaba.cloud</groupId>
			<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
		</dependency>

服务注册：bootstrap.properties

spring.application.name=service-****
spring.cloud.nacos.discovery.server-addr=***.***.***.***:8848
spring.cloud.nacos.discovery.namespace=*******************-e9502a399712
spring.cloud.nacos.discovery.username=nacos
spring.cloud.nacos.discovery.password=nacos
spring.cloud.nacos.discovery.enabled=true
spring.cloud.nacos.config.server-addr=***.***.***.***:8848
spring.cloud.nacos.config.namespace=*******************-e9502a399712
spring.cloud.nacos.config.group=shop
spring.cloud.nacos.config.file-extension=yml
spring.cloud.nacos.config.refresh-enabled=true

?

服务调用：

依赖：

        <!--服务调用-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
        </dependency>
        <!--熔断器hystrix依赖，主要是用 @HystrixCommand -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
        </dependency>

Client：配置调用服务ProductFeignClient?

import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.Map;
//调用的服务的名称,以及熔断后执行方法的类
//@FeignClient(name="service-vod",fallback = VodClientDefeat.class)

@FeignClient(name="service-business")
@Component
public interface ProductFeignClient {
    /**
     * 通过spuId需要搜索的商品
     * @param spuId spuid
     * @return es保存的商品信息
     */
    @GetMapping(value = "/brand/selectAll")
    public Map loadEsProductBO(@RequestParam("spuId") Long spuId);
    
}

调用示例：

 @Autowired
    private ProductFeignClient productFeignClient ;


@GetMapping(value = "test")
    @ApiOperation(value = "测试调用nacos服务")
    public void testnacos() throws Exception{
        Long spuId=123456L;
        Map sss=ProductFeignClient.loadEsProductBO(spuId);
        System.out.println(sss);
    }

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