springboot项目注册到nacos互相调用(openfeign)

###################################服务提供者##########################

 

各文件内容如下：

pom.xml

<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>org.hxl01</groupId>
  <artifactId>hxl01</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>hxl01</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>3.2.12</version>
  </parent>


  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <!--    web依赖-->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!--    nacos依赖-->
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
      <version>2023.0.3.4</version>
    </dependency>

  </dependencies>
</project>

 

application.properties

server.port = 8001
spring.application.name=hxl-service-name-01
spring.cloud.nacos.discovery.server-addr=192.168.1.134:8848
spring.cloud.nacos.discovery.username=nacos
spring.cloud.nacos.discovery.password=nacos

 

App.java

package org.hxl01;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

/**
 * Hello world!
 *
 */
@SpringBootApplication
@EnableDiscoveryClient
public class App 
{
    public static void main( String[] args )
    {
        SpringApplication.run(App.class,args);
    }
}

 

HelloController.java

package org.hxl01.controller;

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

@RestController
@RequestMapping("/producer")
public class HelloController {

    @GetMapping("/hello")
    public String hello() {
        return "Hello from Producer Service!";
    }
}

 

 

###########################服务消费者########################

 

 

pom.xml

<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>org.hxl02</groupId>
  <artifactId>hxl02</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>hxl02</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>3.2.12</version>
  </parent>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <!--    web依赖-->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!--    nacos依赖-->
    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
      <version>2023.0.3.4</version>
    </dependency>

    <!-- OpenFeign (消费者需要) -->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-openfeign</artifactId>
      <version>4.3.0</version>
    </dependency>

    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-openfeign-core</artifactId>
      <version>4.3.0</version>
      <scope>compile</scope>
    </dependency>


    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-loadbalancer</artifactId>
      <version>4.3.0</version>
    </dependency>

  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>

</project>

 

application.properties

server.port = 8002
spring.application.name=hxl-service-name-02
spring.cloud.nacos.discovery.server-addr=192.168.1.134:8848
spring.cloud.nacos.discovery.username=nacos
spring.cloud.nacos.discovery.password=nacos

 

App.java

package org.hxl02;

/**
 * Hello world!
 *
 */
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

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

 

ProducerService.java

package org.hxl02.service;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;

@FeignClient(name = "hxl-service-name-01")
public interface ProducerService {

    // 映射的路径必须与生产者Controller中的接口路径完全一致
    @GetMapping("/producer/hello")
    String callHello();
}

 

BusinessController.java

package org.hxl02.controller;

import org.hxl02.service.ProducerService;
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;

@RestController
@RequestMapping("/consumer")
public class BusinessController {

    @Autowired
    private ProducerService producerService;

    @GetMapping("/call-producer")
    public String callProducer() {
        String result = producerService.callHello();
        return "Consumer received: " + result;
    }
}

 

 2个项目都启动后，调用消费者端的接口

http://127.0.0.1:8002/consumer/call-producer

 

nacos里的注册情况