SpringClound-注册-Eureka

1.新建springboot项目（注册中心）

(1). 添加maven依赖

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>

(2).application.properties文件配置

  spring.application.name=registry
  server.port=8080
  eureka.instance.hostname=localhost
  # 表示是否将自己注册到Eureka Server，默认为true。
  eureka.client.register-with-eureka=false
  # 表示是否从Eureka Server获取注册信息，默认为true。
  eureka.client.fetch-registry=false
  # 设置与Eureka Server交互的地址，查询服务和注册服务都需要依赖这个地址。默认是  http://localhost:8761/eureka ；多个地址可使用,分隔
  eureka.client.service-url.defaultZone=http://localhost:${server.port}/eureka/

2.新建springboot项目（用户服务-服务提供者）

(1). 添加maven依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

(2).application.properties文件配置

spring.application.name=shmily-user
server.port=8000
eureka.client.service-url.defaultZone=http://localhost:8080/eureka/

(3).启动类

@EnableDiscoveryClient
@SpringBootApplication
public class ShmilyUserApplication {

    public static void main(String[] args) {
        SpringApplication.run(ShmilyUserApplication.class, args);
    }
}

(4).提供者

@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private DiscoveryClient discoveryClient;

    @GetMapping("/test")
    public String test(){
        String services = "Service:" + discoveryClient.getServices();
        System.out.println(services);
        return services;
    }
}

3.新建springboot项目（系统管理服务-服务消费者）

(1). 添加maven依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</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-test</artifactId>
    <scope>test</scope>
</dependency>

(2).application.properties文件配置

spring.application.name=xb-sys
server.port=8081
eureka.client.service-url.defaultZone=http://localhost:8080/eureka/

(3).启动类

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

(4).消费者
4.1 .rpc远程调用部分

@Repository("userRemote")
@FeignClient(value = "shmily-user", fallback = UserRemoteHystrix.class)
public interface UserRemote {
    @RequestMapping("/user/test")
    String test();
}

4.2 .调用部分

@RestController
@RequestMapping("user")
public class UserController {

    @Resource
    private UserRemote userRemote;

    @GetMapping("/rpcTest")
    public String rpcTest(){
        return userRemote.test();
    }
}

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