<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>cn.netkiller.spring.cloud.netflix</groupId>
	<artifactId>feign.client</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>feign.client</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.3.RELEASE</version>
		<relativePath />
	</parent>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
			<version>1.3.1.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-feign</artifactId>
			<version>1.3.1.RELEASE</version>
		</dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<configuration>
					<skip>true</skip>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>
			
			

			
package cn.netkiller.spring.cloud.netflix.feign.client;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableEurekaClient
@EnableFeignClients
@RestController
public class Application {
	@Autowired
	private GreetingClient greetingClient;

	@RequestMapping("/get-greeting")
	public String greeting() {
		return greetingClient.greeting();
	}

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
		System.out.println("Hello World!");
	}
}
			
			

			
package cn.netkiller.spring.cloud.netflix.feign.client;

import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;

@FeignClient("test-service")
public interface GreetingClient {
	@RequestMapping("/greeting")
	String greeting();
}
			
			

@FeignClient("test-service") 是 Eureka Client application.properties 中的 spring.application.name 配置项

@RequestMapping("/greeting") 是 Eureka Client RestController 中的 @RequestMapping

			
spring.application.name=spring-cloud-eureka-feign-client
server.port=8088
#eureka.client.register-with-eureka=false
#eureka.client.fetch-registry=false
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
feign.compression.response.enabled=true
feign.compression.request.enabled=true
feign.compression.request.mime-types=text/xml,application/xml,application/json
feign.compression.request.min-request-size=2048
			
			

			
$ curl -s http://localhost:8088/get-greeting.json

GREETING
			
			

			
@FeignClient(value = "restful-api-service", fallback = UserServiceFeignClientFallback.class)
public interface UserServiceFeignClient {
@RequestMapping(value = "/api/user/{id}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.APPLICATION_JSON_VALUE)
    User getUser(@PathVariable("id") int id);

    @RequestMapping(value = "/api/user/search/findByName?name={name}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.APPLICATION_JSON_VALUE)
    User findUserByName(@PathVariable("name") String name);

    @RequestMapping(value = "/api/user/search/findByAddress?address={address}", method = RequestMethod.GET)
    String findUserByAddress(@PathVariable("address") String address);
}
			
			

			
@Component
public class UserServiceFeignClientFallback implements UserServiceFeignClient {

    @Override
    public User getUser(int id) {
        return new User("getUser.Fallback", "feignClient return");
    }

    @Override
    public User findUserByName(String name) {
        return new User("findUserByName.Fallback", "feignClient return");
    }

    @Override
    public String findUserByAddress(String address) {
        return "fallback";
    }
}