<!-- dubbo依賴(lài) -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>3.0.5</version>
        </dependency>

server:
  port: 8081
spring:
  application:
    name: provide-api
 
dubbo:
  registry:
    address: N/A # 表示無(wú)注冊(cè)中心
  protocol:
    name: dubbo # 提供者協(xié)議
    port: 18081 # 提供者dubbo端口
    host: 127.0.0.1 # 服務(wù)提供者所在機(jī)器地址
  scan:
    base-packages: com.paycools.service # 提供者需要交由dubbo管理的掃描包路徑
  application:
    name: provide-server # 提供者服務(wù)名
 

package com.jxz.service.impl;
 
import com.jxz.service.IDubboDemoService;
import com.jxz.service.vo.User;
import lombok.extern.slf4j.Slf4j;
import org.apache.dubbo.config.annotation.DubboService;
import org.springframework.stereotype.Service;
 
import java.util.ArrayList;
import java.util.List;
 
/**
 * @author jiangXueZhi
 * @data 2022/4/1
 */
@Service // spring 的注解
@DubboService // dubbo 提供者的注解
@Slf4j
public class DubboDemoServiceImpl implements IDubboDemoService {
    /**
     * 用于測(cè)試 dubbo 的rpc 遠(yuǎn)程過(guò)程調(diào)用是否成功
     */
    @Override
    public String dubboTest() {
        log.info("###########  服務(wù)提供者成功提供API響應(yīng)");
        return "服務(wù)提供者成功提供API響應(yīng)";
    }
 
    /**
     * 用于測(cè)試 dubbo 的rpc 遠(yuǎn)程過(guò)程調(diào)用攜帶參數(shù)與返回值是否正常
     */
    @Override
    public List<User> dubboVoTest(Integer aa) {
        if (aa == 1) {
            List<User> list = new ArrayList<>(3);
            list.add(new User().setName("張三").setAge(18));
            list.add(new User().setName("李四").setAge(5));
            log.info("###########  服務(wù)提供者成功提供API響應(yīng),參數(shù)為{}, 返回值為{}", aa, list);
            return list;
        }
        log.info("###########  服務(wù)提供者成功提供API響應(yīng),參數(shù)為{}, 返回值為{}", aa, null);
        return null;
    }
}

package com.jxz.service.vo;
 
import lombok.Data;
import lombok.experimental.Accessors;
 
import java.io.Serializable;
 
/**
 * @author jiangXueZhi
 * @data 2022/4/2
 */
@Data
@Accessors(chain = true)
public class User implements Serializable { // 一定要序列化，因?yàn)閐ubbo傳輸數(shù)據(jù)以二進(jìn)制的方式
    private String name;
    private int age;
}

<!-- dubbo依賴(lài) -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>3.0.5</version>
        </dependency>

server:
  port: 8082
spring:
  application:
    name: consumer-api
 
dubbo:
  registry:
    address: N/A # 表示無(wú)注冊(cè)中心
  #scan: # 作為提供者時(shí)使用
    #base-packages: com.paycools.service # 掃描包的路徑
  protocol:
    name: dubbo
    port: 18082
    host: 127.0.0.1
  application:
    name: consumer-server
 
# 自定義配置--因無(wú)注冊(cè)中心，則需指定服務(wù)提供者地址
provide:
  host: "dubbo://127.0.0.1:18081"
 
 

package com.jxz.controller;
 
import com.jxz.service.UserDemo;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
 
import javax.annotation.Resource;
 
/**
 * @author jiangXueZhi
 * @data 2022/4/1
 */
@RequestMapping("/api")
@RestController
public class DemoTestController {
    @Resource
    private UserDemo userDemo;
 
    @RequestMapping(value = "/demoTest", method = RequestMethod.GET)
    public String demoTest() {
        return userDemo.demoTest();
    }
 
    @RequestMapping(value = "/demoVoTest/{aa}", method = RequestMethod.GET)
    public String demoVoTest(@PathVariable("aa") Integer aa) {
        return userDemo.demoVoTest(aa);
    }
}

package com.jxz.service;
 
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.stereotype.Service;
 
/**
 * @author jiangXueZhi
 * @data 2022/4/1
 */
@Service
public class UserDemo {
 
    @DubboReference(check = false, url = "${provide.host}") // 無(wú)注冊(cè)中心時(shí)的參數(shù)配置
    IDubboDemoService iDubboDemoService;
 
    public String demoTest() {
        return "###  服務(wù)消費(fèi)者成功拿到提供者的API響應(yīng)：" + iDubboDemoService.dubboTest();
    }
 
    public String demoVoTest(Integer aa) {
        return "### <帶參數(shù)以及對(duì)象返回值> 服務(wù)消費(fèi)者成功拿到提供者的API響應(yīng)：" + iDubboDemoService.dubboVoTest(aa);
    }
}

package com.jxz.service;
 
import com.paycools.service.pojo.User;
 
import java.util.List;
 
public interface IDubboDemoService {
    String dubboTest();
 
    List<User> dubboVoTest(Integer aa);
}

package com.jxz.service.pojo;
 
import lombok.Data;
 
import java.io.Serializable;
 
/**
 * @author jiangXueZhi
 * @data 2022/4/2
 */
@Data
public class User implements Serializable { // 必須實(shí)現(xiàn)序列化
    private String name;
    private int age;
}

server:
  port: 8083
 
spring:
  application:
    name: provide-server
  profiles:
    active: dev
 

<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-openfeign -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>3.1.1</version>
        </dependency>

server:
  port: 8084
spring:
  application:
    name: consumer-server
 
 
# 自定義配置，因無(wú)注冊(cè)中心，需直接指定服務(wù)提供者
provider:
  application-name: provide-server
  host: http://127.0.0.1:8083

package com.jxz;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;
 
@SpringBootApplication
@EnableFeignClients
public class FeignConsumerDemoApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(FeignConsumerDemoApplication.class, args);
        System.out.println("服務(wù)消費(fèi)者啟動(dòng)成功...");
    }
 
}

package com.paycools.service;
 
import com.paycools.pojo.User;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
 
import java.util.List;
 
@FeignClient(value = "${provider.application-name}", url = "${provider.host}") // 因無(wú)注冊(cè)中心，需直接指定其url
public interface IProvideService {
 
    @RequestMapping("/api/provide/getProvideResponse")
    String getProvideResponse();
 
    @RequestMapping("/api/provide/getProvideVoResponse/{id}")
    List<User> getProvideVoResponse(@PathVariable("id") Integer id);
}

package com.jxz.controller;
 
import com.jxz.service.IProvideService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
 
import javax.annotation.Resource;
 
/**
 * @author jiangXueZhi
 * @data 2022/4/2
 */
@RestController
@RequestMapping("/api/consumer")
@Slf4j
public class ConsumerDemoController {
 
    @Resource
    private IProvideService iProvideService;
 
    @RequestMapping("/getProvideResponse")
    public String getProvideResponse() {
        log.info("服務(wù)消費(fèi)者，成功調(diào)用服務(wù)提供者API");
        return "服務(wù)消費(fèi)者端，" + iProvideService.getProvideResponse();
    }
 
    @RequestMapping(value = "/getProvideVoResponse/{id}", method = RequestMethod.GET)
    public String getProvideVoResponse(@PathVariable("id") Integer id) {
        log.info("服務(wù)消費(fèi)者，成功調(diào)用服務(wù)提供者API");
        return "服務(wù)消費(fèi)者端，" + iProvideService.getProvideVoResponse(id);
    }
}