spring feign依赖包

1.feign依赖包

<properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
    </properties>
　　<!-- 管理springboot相关依赖的版本例如：web,jdbc，test -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>


    <dependencies>
　　　　 <!-- feign客户端依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.10</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <scope>test</scope>
        </dependency>
　　　　 <!-- feign使用服务id获取加请求路径获取的负载均衡依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
            <scope>test</scope>
        </dependency>
        <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-client</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>com.github.jsonzou</groupId>
            <artifactId>jmockdata</artifactId>
            <version>4.1.1</version>
            <scope>test</scope>
        </dependency>

    </dependencies>

<!-- 管理spring cloud依赖的版本，例如，feign,负载均衡的ribbon

-->

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

<!-- eureka-client 包括了eureka客户端所有的依赖。
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>

 -->

 2.Java类注释写法

@SpringBootApplication
@EnableDiscoveryClient
@RestController
@EnableFeignClients
public class DemoApplication {
    @Autowired
    HelloClient client;

    @RequestMapping("/")
    public String hello() {
        return client.hello();
    }

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

    @FeignClient("HelloServer")
    interface HelloClient {
        @RequestMapping(value = "/", method = GET)
        String hello();
    }
}

3.yml配置

debug: true

spring:
  application:
    name: nuts-warehouse-feign

server:
  port: 8085

eureka:
  client:
    serviceUrl:
      defaultZone: http://10.202.200.147:8081/eureka