服务注册与发现
服务注册与发现
🐤工程准备
- 创建父工程,在父工程当中导入依赖
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.5.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Hoxton.SR3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>2.2.1.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
- 创建两个工程
user
与goods
工程,在这里我直接编写了,就不再一一贴图了,因为NetFlix文章中已经有了不懂的可以参考一下创建
- 在user工程当中添加依赖
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
-
在启动类上添加注解
@EnableDiscoveryClient
-
在配置文件添加添加配置
spring:
application:
name: user-client
cloud:
nacos:
discovery:
# nacos服务的地址,不要加http
server-addr: localhost:8848
-
启动工程后,在nacos当中查询服务列表
-
使用相同方式把goods服务注册到nacos上
-
在user工程中通过
服务发现
调用goods工程
@Autowired
private DiscoveryClient discoveryClient;
@RequestMapping(value = "/getGoods.do")
public ResponseResult getGoods() {
List<ServiceInstance> instances = discoveryClient.getInstances("goods-service");
ServiceInstance serviceInstance = instances.get(0);
String url = serviceInstance.getUri() + "/getGoods.do";
return ResponseResult.success("Goods服务器信息调用成功!", restTemplate.getForObject(url, Object.class));
}