Nacos集成 springcloud 注册中心、配置中心示例

你的名字 2022-12-14 09:02 174阅读 0赞

# **服务提供者**： #

引入依赖pom.xml：

<parent>
    		<groupId>org.springframework.boot</groupId>
    		<artifactId>spring-boot-starter-parent</artifactId>
    		<version>2.0.3.RELEASE</version>
    		<relativePath /> 
    	</parent>
    
    	<dependencyManagement>
    		<dependencies>
    			<dependency>
    				<groupId>org.springframework.cloud</groupId>
    				<artifactId>spring-cloud-dependencies</artifactId>
    				<version>Finchley.RELEASE</version>
    				<type>pom</type>
    				<scope>import</scope>
    			</dependency>
    		</dependencies>
    	</dependencyManagement>
    
    	<dependencies>
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    			<version>0.9.0.RELEASE</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    			<version>0.9.0.RELEASE</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-configuration-processor</artifactId>
    			<optional>true</optional>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.projectlombok</groupId>
    			<artifactId>lombok</artifactId>
    		</dependency>
    	</dependencies>

bootstrap.properties

#服务名称
    spring.application.name=NacosProviderTest
    #consul  地址
    spring.cloud.consul.host=localhost
    #consul  端口
    spring.cloud.consul.port=8500
    spring.cloud.consul.discovery.prefer-ip-address=true
    
    #nacos config server 地址
    spring.cloud.nacos.config.server-addr=127.0.0.1:8848
    #nacos 配置中心功能，默认true
    spring.cloud.nacos.config.enabled=true
    #nacos config server 动态配置文件格式
    spring.cloud.nacos.config.file-extension=yaml

applicatioin.yml

jacky:
      info:
        age: 0

新建pojo

import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.cloud.context.config.annotation.RefreshScope;
    import org.springframework.stereotype.Component;
    
    import lombok.Data;
    
    @ConfigurationProperties("jacky.info")
    @RefreshScope
    @Component
    @Data
    public class MyProperties {
    
    	int age;
    	
    }

新建启动测试类：

import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    
    @SpringBootApplication
    @EnableDiscoveryClient
    @RestController
    public class NacosProviderApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(NacosProviderApplication.class, args);
    	}
    	
    	@Autowired
    	private MyProperties myProperties;
    
    	@RequestMapping("test/{id}")
    	public String test(@PathVariable Integer id) {
    		return "服务提供者 test - id = " + id + " >>> " + myProperties.getAge();
    	}
    	
    }

nacos页面端新建配置信息：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3Zpc2lvbjU4MzkzNDA2MQ_size_16_color_FFFFFF_t_70][]

server:
      port: 8888
    
    spring:
      application:
        name: NacosProviderTest
      cloud:
        nacos:
          discovery:
            server-addr: localhost:8848
            
            
    jacky:
      info:
        age: 20

# **服务消费者**： #

配置中心同服务提供者

注册中心配置同服务提供者

import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.cloud.client.loadbalancer.LoadBalanced;
    import org.springframework.context.annotation.Bean;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    import org.springframework.web.client.RestTemplate;
    
    @SpringBootApplication
    @EnableDiscoveryClient
    @RestController
    public class NacosConsumerApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(NacosConsumerApplication.class, args);
    	}
    
    	@Bean
    	@LoadBalanced
    	public RestTemplate restTemplate() {
    		return new RestTemplate();
    	}
    	
    	@Autowired
    	private RestTemplate restTemplate;
    	
    	@RequestMapping("text/{id}")
    	public String text(@PathVariable Integer id) {
    		return "消费者获得数据：" + restTemplate.getForObject("http://NacosProviderTest/test/"+id, String.class);
    	}
    }

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