spring-cloud-eureka-client-consumer

服务注册中心eureka-server已经搭好，并且SPRING-CLOUD-NETFLIX-EUREKA-CLIENT-APPLICATION提供一个hello服务

编写一个eureka-client-consumer服务消费者，去消费该服务

一、新建module，选择对应的springcloud模块，pom.xml如下：

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>lf.liyouyou</groupId>
        <artifactId>spring-cloud-netflix-demo</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <groupId>lf.youyou</groupId>
    <artifactId>spring-cloud-eureka-client-consumer</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-cloud-eureka-client-consumer</name>
    <description>Demo project for Spring Boot</description>


    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <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-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

</project>

二、启动类添加注解

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class SpringCloudEurekaClientConsumerApplication {

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

}

三、编写调用hello服务代码

　　首先编写一个可以远程调用服务feign接口，name属性配置需要调用的服务名称

package lf.youyou.lf.com;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@FeignClient(name="spring-cloud-netflix-eureka-client-application")
public interface HelloRemote {

    @RequestMapping(value = "/hello")
    public String hello(@RequestParam(value = "name") String name);
}

　　Controller

　　

package lf.youyou.lf.com;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @Autowired
    HelloRemote helloRemote;

    @RequestMapping("/hello/{name}")
    public String index(@PathVariable("name") String name) {
        return helloRemote.hello(name);
    }
}

四、配置application.properties

spring.application.name=spring-cloud-netflix-eureka-client-consumer
server.port=9090
eureka.client.service-url.defaultZone=http://localhost:8000/eureka/

启动服务，

访问注册中心 http://localhost:8000/ 查看eureka面板

再访问http://localhost:9090/hello/lf

返回：hello lf，nice to meet you!