springcloud - alibaba - 2 - 集成Feign - 更新完成

1、依赖

• 依赖管理

<parent>

        <artifactId>spring-boot-parent</artifactId>

        <groupId>org.springframework.boot</groupId>

        <version>2.3.12.RELEASE</version>

        <relativePath/>

    </parent>

• 项目需要的依赖

<dependencies>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <dependency>

            <groupId>org.projectlombok</groupId>

            <artifactId>lombok</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

        </dependency>

<!--        springcloud-alibaba需要的依赖-->

        <dependency>

            <groupId>com.alibaba.cloud</groupId>

            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>

        </dependency>

    </dependencies>

    <dependencyManagement>

        <dependencies>

            <dependency>

                <groupId>org.springframework.cloud</groupId>

                <artifactId>spring-cloud-dependencies</artifactId>

                <version>Hoxton.SR12</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

            <dependency>

                <groupId>com.alibaba.cloud</groupId>

                <artifactId>spring-cloud-alibaba-dependencies</artifactId>

                <version>2.2.6.RELEASE</version>

                <type>pom</type>

                <scope>import</scope>

            </dependency>

        </dependencies>

    </dependencyManagement>

2、服务提供者

2.1）、yml配置

server:

  port: 8011

spring:

  application:

    name: ALIBABA-PUBLISHER

  cloud:

    nacos:

      discovery:

        server-addr: 162.14.66.60:8848  # 自己的服务器ip：8848

management:

  endpoints:

    web:

      exposure:

        include: "*" #健康检查

2.2）、启动类编写

package cn.zixieqing;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

/**

 * @ClassName PublisherApplication

 * @Author ZiXieQing

 * @Date 2021/12/7

 * Version 1.0

 **/

@SpringBootApplication

@EnableDiscoveryClient      // 开启nacos的客户端功能

public class PublisherApplication {

    public static void main(String[] args) {

        SpringApplication.run(PublisherApplication.class, args);

    }

}

2.3）、controller编写

package cn.zixieqing.controller;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

@RestController

@RequestMapping("/provider")

public class ProvideService {

    @GetMapping("/service")

    public String provideService() {

        return "this is my son";

    }

}

3、Feign

3.1）、导入依赖

    <dependencies>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-openfeign</artifactId>

        </dependency>

    </dependencies>

3.2）、编写yml

server:

  port: 8012

spring:

  cloud:

    nacos:

      discovery:

        server-addr: 162.14.66.60:8848  # 自己的服务器ip：8848

  application:

    name: ALIBABA-OPENFEIGN

3.3）、接口编写

package cn.zixieqing;

import org.springframework.cloud.openfeign.FeignClient;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

@FeignClient(value = "ALIBABA-PUBLISHER")  // publisher中注册进去的服务名

public interface ProxyService {

    @RequestMapping(value = "/provider/service" , method = RequestMethod.GET)

    String provideService();

}

3.4）、启动类编写

package cn.zixieqing;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

import org.springframework.cloud.openfeign.EnableFeignClients;

@SpringBootApplication

@EnableDiscoveryClient

@EnableFeignClients

public class OpenFeignApplication {

    public static void main(String[] args) {

        SpringApplication.run(OpenFeignApplication.class, args);

    }

}

3.5）、服务消费层编写

package cn.zixieqing.controller;

import cn.zixieqing.ProxyService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

/**

 * @ClassName getService

 * @Author ZiXieQing

 * @Date 2021/12/7

 * Version 1.0

 **/

@RestController

@RequestMapping("/test")

public class getService {

    @Autowired

    private ProxyService proxyService;

    @GetMapping("/getService")

    public String getServer() {

        return proxyService.provideService();

    }

}

4、启动publisher 和 Feign