Springboot整合Nacos

父类POM文件：

<?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>

    <!-- 打包方式 -->
    <packaging>pom</packaging>
    <modules>
        <module>order</module>
        <module>stock</module>
    </modules>


    <groupId>com.nacos</groupId>
    <artifactId>vnacos</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>vnacos</name>
    <description>vnacos</description>

    <properties>
        <java.version>1.8</java.version>
        <spring.cloud.alibaba.version>2.2.5.RELEASE</spring.cloud.alibaba.version>
        <spring.boot.version>2.3.11.RELEASE</spring.boot.version>
        <spring.cloud.version>Hoxton.SR8</spring.cloud.version>
    </properties>

    <!-- 管理依赖版本号 -->
    <dependencyManagement>

        <!--Spring Cloud alibaba的版本管理， 通过dependency完成继承-->
        <dependencies>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring.cloud.alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--SpringBoot的版本管理-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>${spring.boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>


            <!--Spring Cloud的版本管理-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>

    </dependencyManagement>

    <dependencies>

        <!--SpringBoot 基本场景启动-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <!--SpringBoot 测试-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- Slf4j -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!-- Swagger2构造RESTful API文档 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.4.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.4.0</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
        </plugins>
    </build>

</project>

模块POM文件：

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>vnacos</artifactId>
        <groupId>com.nacos</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>order</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>

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

        <!--nacos-服务注册发现-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

    </dependencies>

</project>

YML文件：

server:
  port: 80

spring:
  application:
    name: order-service   # 应用名称  nacos  将名称作为服务名称
  cloud:
    nacos:
      server-addr: 192.168.43.66:8848
      discovery:
        username: nacos
        password: nacos
        namespace: public
          # namespace: public  # 相同特征的服务进行归类分组管理
          # ephemeral: false  # 默认=true（临时实例）  当服务宕机 超过心跳 就会将实例剔除掉
          #永久实例   哪怕宕机了也不会删除实例  当服务宕机 永远不会剔除掉
          #group的相同特征的服务进行归类分组管理
          #weight:  通常要结合 安装 权重的负载均衡策略， 权重越高分配的流量就越大
        #metadata: version=1  可以结合元数据做扩展
        #cluster-name: XUSHU

 

JAVA代码：

启动类：

package com;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;

/**
 * @author vans on 2022/2/16 18:32
 */

/**
 * 此配 scanBasePackages={"com.netflix.client.config.IClientConfig"} 解决：
 *  Consider defining a bean of type 'com.netflix.client.config.IClientConfig' in your configuration.
 */@SpringBootApplication(scanBasePackages={"com.netflix.client.config.IClientConfig","com.stock"})
public class VnOrderApplication {


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

    /**
     * 
     * @param restTemplateBuilder
     * @return
     * 
     * @LoadBalanced  定义负载均衡器
     * 
     */
    @Bean
    @LoadBalanced  
    public RestTemplate getRestTemplate(RestTemplateBuilder restTemplateBuilder){
        RestTemplate restTemplate = restTemplateBuilder.build();
        return restTemplate;
    }

}

 

Controller层：

package com.order.controller;

import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
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;
import org.springframework.web.client.RestTemplate;

/**
 * @author vans on 2022/2/16 18:13
 */

@RestController
@RequestMapping("/vn/order")
@Slf4j
public class OrderController {


    @Autowired
    private RestTemplate restTemplate;


    @ApiOperation(value = "获取所有用户列表", notes = "不需要任何参数")
    @ApiImplicitParam(name = "", value = "", required = false, dataType = "")
    @GetMapping
    public String getOrder() {

        String message = restTemplate.getForObject("http://stock-service:90/vn/stock", String.class);

        return message;
    }


}