Alibaba Nacos 学习（三）：Spring Cloud Nacos Discovery - FeignClient,Nacos 服务注册与发现

Alibaba Nacos 学习（一）：Nacos介绍与安装

Alibaba Nacos 学习（二）：Spring Cloud Nacos Config

Alibaba Nacos 学习（三）：Spring Cloud Nacos Discovery - FeignClient,Nacos 服务注册与发现

Alibaba Nacos 学习（四）：Nacos Docker

Alibaba Nacos 学习（五）：K8S Nacos搭建,使用nfs

接上一篇

https://www.cnblogs.com/woxpp/p/11908262.html

服务端新增引入依赖

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>0.2.1.RELEASE</version>
        </dependency>

启动类开启服务注册支持

@EnableSwagger2
@SpringBootApplication
@EnableDiscoveryClient
public class Application {

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

增加服务注册地址  application.properties

spring.cloud.nacos.discovery.server-addr=192.168.50.31:8848

消费端POM.XML如下，引入ribbon与openfeign支持

<?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>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>nacos.consumer</groupId>
    <artifactId>nacos.consumer</artifactId>
    <name>nacos.consumer</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-boot.version>2.0.3.RELEASE</spring-boot.version>
        <nacos-config-spring-boot.version>0.2.1</nacos-config-spring-boot.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>0.2.1.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.5.0</version>
        </dependency>
        <!-- swagger-ui -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.5.0</version>
        </dependency>
    </dependencies>
</project>

创建服务引用对象，利用FeignClient

package example.dockertest.example.dockertest.service;

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

@FeignClient(value = "service-provider")
public interface ICustomerService {
    @RequestMapping(value = "/config/get", method = RequestMethod.GET)
    @ResponseBody
    String get();
}

调用服务方法

@RestController
@RequestMapping("/configConsumer")
public class ConfigController {
    @Autowired
    private ICustomerService customerService;

    @RequestMapping(value = "/get", method = RequestMethod.GET)
    @ResponseBody
    public String get() {
        return customerService.get();
    }
}

提供服务发现

@EnableSwagger2
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

启动测试是否能够调用