添加nacos服务消费代码。nacos通过springboot注册服务有bug：服务注册后权重为0，元数据为空，导致服务消费查不到此服务。因此后续服务注册在ipu-nacos-cloud里提供。

ipu-rest-scaffold/pom.xml

		<jdk>1.8</jdk>
		<junit>4.12</junit>
		<spring-session.version>1.3.2.RELEASE</spring-session.version>
		<nacos-config.version>0.1.1</nacos-config.version>
		<nacos.version>0.1.1</nacos.version>
	</properties>
	<dependencies>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<!--devtools热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>true</scope>
        </dependency>
        <!-- 引入nacos服务注册及配置中心 -->
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>nacos-config-spring-boot-starter</artifactId>
            <version>${nacos-config.version}</version>
        </dependency>
		<!--devtools热部署  -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<optional>true</optional>
			<scope>runtime</scope>
		</dependency>
		<!-- 引入nacos服务配置中心 -->
		<dependency>
			<groupId>com.alibaba.boot</groupId>
			<artifactId>nacos-config-spring-boot-starter</artifactId>
			<version>${nacos.version}</version>
		</dependency>
		<!-- 引入nacos服务注册中心 -->
		<dependency>
			<groupId>com.alibaba.boot</groupId>
			<artifactId>nacos-discovery-spring-boot-starter</artifactId>
			<version>${nacos.version}</version>
		</dependency>
	</dependencies>
	<build>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
                    <fork>true</fork>
                </configuration>
					<fork>true</fork>
				</configuration>
			</plugin>
		</plugins>
	</build>

ipu-rest-scaffold/readme.md

        ```
- 2.nacos配置中心的配置文件为:application.properties
        ```properties
        nacos.config.server-addr=192.168.1.101:8848
        nacos.config.server-addr=127.0.0.1:8848
        ```
- 3.nacos配置中心使用案例在NacosConfigController中。此案例只支持springboot，springcloud的示例不在当前工程。
- 4.nacos注册中心组件的引入
    - 以maven为例,请在pom.xml中引入nacos组件。
        ```xml
        <dependency>
            <groupId>com.alibaba.boot</groupId>
            <artifactId>nacos-discovery-spring-boot-starter</artifactId>
            <version>0.1.1</version>
        </dependency>
        ```
- 5.nacos注册中心的配置文件为:application.properties
        ```properties
        nacos.discovery.server-addr=127.0.0.1:8848
        ```
- 6.nacos注册中心使用案例为NacosConsumerControl.java(服务消费/调用)。nacos通过springboot注册服务有bug：服务注册后权重为0，元数据为空，导致服务消费查不到此服务。此案例只支持springboot，springcloud的示例在工程ipu-nacos_cloud中。查看服务注册后，注册中心保存的注册信息命令为curl -X GET '127.0.0.1:8848/nacos/v1/ns/instance?serviceName=ipu-rest-scaffold&ip=10.1.234.70&port=9999&cluster=DEFAULT'
###打包运行
java -Dipu.lic.path=ipu.lic -jar ipu-rest-scaffold.jar --server.port=8080

ipu-rest-scaffold/src/main/java/com/ai/ipu/server/config/NacosListenerConfiguration.java

    public void init() throws NacosException {
        Listener listener = new AbstractListener() {
//            @Override
            @Override
            public void receiveConfigInfo(String configInfo) {
            }
        };
    @Bean
    public ApplicationListener<NacosConfigReceivedEvent> nacosConfigReceivedEventListener() {
        return new ApplicationListener<NacosConfigReceivedEvent>() {
//            @Override
            @Override
            public void onApplicationEvent(NacosConfigReceivedEvent event) {
                logger.info("Listening on NacosConfigReceivedEvent -  dataId : {} , groupId : {} , " + "content : {} , "
                        + "source : {}", event.getDataId(), event.getGroupId(), event.getContent(), event.getSource());
    @Bean
    public ApplicationListener<NacosConfigRemovedEvent> nacosConfigRemovedEventListener() {
        return new ApplicationListener<NacosConfigRemovedEvent>() {
//            @Override
            @Override
            public void onApplicationEvent(NacosConfigRemovedEvent event) {
                logger.info("Listening on NacosConfigRemovedEvent -  dataId : {} , groupId : {} , " + "removed : {} , "
                        + "source : {}", event.getDataId(), event.getGroupId(), event.isRemoved(), event.getSource());
    @Bean
    public ApplicationListener<NacosConfigListenerRegisteredEvent> nacosConfigListenerRegisteredEventListener() {
        return new ApplicationListener<NacosConfigListenerRegisteredEvent>() {
//            @Override
            @Override
            public void onApplicationEvent(NacosConfigListenerRegisteredEvent event) {
                logger.info("Listening on NacosConfigListenerRegisteredEvent -  dataId : {} , groupId : {} , " + "registered : {} , "
                        + "source : {}", event.getDataId(), event.getGroupId(), event.isRegistered(), event.getSource());
    @Bean
    public ApplicationListener<NacosConfigPublishedEvent> nacosConfigPublishedEvent() {
        return new ApplicationListener<NacosConfigPublishedEvent>() {
//            @Override
            @Override
            public void onApplicationEvent(NacosConfigPublishedEvent event) {
                logger.info("Listening on NacosConfigPublishedEvent -  dataId : {} , groupId : {} , " + "published : {} , "
                        + "source : {}", event.getDataId(), event.getGroupId(), event.isPublished(), event.getSource());

ipu-rest-scaffold/src/main/java/com/ai/ipu/server/control/NacosConfigController.java

	            return false;
	        }
	 }
	 /* 用于测试热加载 */
	 /* 用于测试热加载 
	 @ResponseBody
	 @RequestMapping("/removeSql")
	 public boolean removeSql(JMap params) throws Exception {
	            e.printStackTrace();
	            return false;
	        }
	 }
	 }*/
	 
}

ipu-rest-scaffold/src/main/java/com/ai/ipu/server/control/NacosConsumerControl.java

package com.ai.ipu.server.control;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.client.RestTemplate;
import com.alibaba.nacos.api.annotation.NacosInjected;
import com.alibaba.nacos.api.exception.NacosException;
import com.alibaba.nacos.api.naming.NamingService;
import com.alibaba.nacos.api.naming.pojo.Instance;
@Controller
@RequestMapping("/nacos/discovery/consumer")
public class NacosConsumerControl {
	private static final Logger logger = LoggerFactory.getLogger(NacosConsumerControl.class);
	
	@NacosInjected
    private NamingService namingService;
	private RestTemplate restTemplate = new RestTemplate();
	
	@Value("${spring.application.name}")
    private String appName;
	@ResponseBody
    @GetMapping(value = "/echo")
    public String echo() throws NacosException {
		try {
			if (namingService != null) {
				// 选择user_service服务的一个健康的实例（可配置负载均衡策略）
				Instance instance = namingService.selectOneHealthyInstance("ipu-nacos_cloud");
				// 拼接请求接口url并请求选取的实例
				String url = "http://" + instance.getIp() + ":" + instance.getPort() + "/provider/echo?message=" + appName;
				ResponseEntity<String> entity = restTemplate.getForEntity(url, String.class);
		        System.out.println(String.format("请求URL:%s,响应结果:%s", url, entity.getBody()));
				return entity.getBody();
			}
		} catch (Exception e) {
			logger.error("get instance from nacos error", e);
		}
        return null;
    }
	
}

ipu-rest-scaffold/src/main/resources/dev/application.properties

management.port=12581
# 不允许远程管理连接(不允许外部调用保证安全)
management.address=127.0.0.1
#管理安全设置，不推荐设置为false，缺省为true
#false表示允许任何人访问管理节点
#true则只允许指定用户密码才能访问
management.security.enabled=false
###配置nacos配置中心
nacos.config.server-addr=10.1.40.130:8848
###配置nacos注册中心
nacos.discovery.server-addr=10.1.40.130:8848
#设置开启热部署
spring.devtools.restart.enabled=true
spring.devtools.restart.additional-paths=src/main/java
spring.devtools.restart.exclude=WEB-INF/**
#页面热加载
spring.freemarker.cache=false 
###配置nacos
nacos.config.server-addr=10.1.234.70:8848
spring.freemarker.cache=false