nacos入门

  • Z时代
  • 2024-01-10
  • 分类：综合

编程

默认端口8848，账户密码均为nacos。

地址栏输入http://localhost:8848/nacos

 

创建空项目

在空项目中创建子项目（provider）生产者

同理，创建consumer消费者

添加provider依赖

<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
<version>0.2.2.RELEASE</version>
</dependency>

<!-- SpringCloud的依赖 -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>

启动类增加注解@EnableDiscoveryClient

@SpringBootApplication
@EnableDiscoveryClient
public class ProvideApplication {
   public static void main(String[] args) {
      SpringApplication.run(ProvideApplication.class, args);
   }
}

@RestController
public class HelloController {
@Value("${myName}")
    private String myName;
@RequestMapping("/hello")
    public String hello() {
        return "hello " + myName;
    }
}

生产者项目结构

添加consumer依赖

<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
<version>0.2.2.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<version>2.2.1.RELEASE</version>
</dependency>

<!-- SpringCloud的依赖 -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR2</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>

启动类增加注解@EnableDiscoveryClient

@SpringBootApplication
@EnableDiscoveryClient
public class ProvideApplication {
   public static void main(String[] args) {
      SpringApplication.run(ProvideApplication.class, args);
   }
}

创建controller

@RestController
public class HiController {
@Autowired
private ProviderClient providerClient;
@RequestMapping("/hi")
    public String hello() {
        String hello = this.providerClient.hello();
        return "hi provider" + hello;
    }
}

创建feign

@FeignClient("service-provider")
public interface ProviderClient {
@GetMapping("/hello")
    public String hello();
}

消费者项目结构如下

分别启动生产者和消费者并查看注册nacos中心

 

github: https://github.com/hull1234/nacos-study.git

 

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