0014-Eureka Provider集群搭建

妖狐艹你老母 2023-07-24 14:57 8阅读 0赞

### 文章目录 ###

*   *   *  1. 工程结构
         *  2. pom文件
         *  3. yml配置
         *  4. 主启动类
         *  5. 增加服务
         *  6. 验证

### 1. 工程结构 ###

为了演示方便所以建三个工程，实际生产是一个工程配置三份，端口不同

*  eureka-provider-8001
 *  eureka-provider-8002
 *  eureka-provider-8003

### 2. pom文件 ###

<dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
        </dependencies>

### 3. yml配置 ###

修改三台的端口即可

server:
      port: 8001
    
    eureka:
      client:
        serviceUrl:
          defaultZone: http://eureka-server-7001:7001/eureka/,http://eureka-server-7002:7002/eureka/,http://eureka-server-7003:7003/eureka/
    # defaultZone: http://eureka-server-8001:7001/eureka/
      instance:
        instance-id: eureka-provider-7001 # 服务名称
        prefer-ip-address: true # 显示ip地址
    
    info: # 点击注册列表未服务出现的信息
      app.name: springcloud
      company.name: www.honor.com
      build.artifactId: @project.artifactId@
      build.version: @project.version@
    
    spring:
      application:
        name: eureka-provider # 三台服务必须一致

### 4. 主启动类 ###

根据项目修改为EurekaProvider8001Application、EurekaProvider8002Application、EurekaProvider8003Application即可

@SpringBootApplication
    @EnableEurekaClient
    public class EurekaProvider8001Application { 
        public static void main(String[] args) { 
            SpringApplication.run(EurekaProvider8001Application.class, args);
        }
    }

### 5. 增加服务 ###

// Controller
    @RestController
    public class HelloController { 
        @Autowired
        private IHelloService helloService;
    
        @RequestMapping("/hello/{name}")
        public String sayHello(@PathVariable String name) { 
            return helloService.sayHello(name);
        }
    }
    
    //ServiceImpl
    @Service
    public class HelloServiceImpl implements IHelloService { 
        @Autowired
        private HttpServletRequest request;
    
        public String sayHello(String name) { 
            return "Hello " + name + ", This port is " + request.getServerPort();
        }
    }

### 6. 验证 ###

*  服务注册中心可以三台注册的服务
 *  确保三台服务都是可以正常使用的