創(chuàng)建一個工程名為 hello-spring-cloud-alibaba-nacos-provider 的服務提供者項目畔塔，pom.xml 配置如下：

POM

<?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">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.wj</groupId>
        <artifactId>hello-spring-cloud-alibaba-dependencies</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <relativePath>../hello-spring-cloud-alibaba-dependencies/pom.xml</relativePath>
    </parent>

    <artifactId>hello-spring-cloud-alibaba-nacos-provider</artifactId>
    <packaging>jar</packaging>

    <name>hello-spring-cloud-alibaba-nacos-provider</name>

    <dependencies>
        <!-- Spring Boot Begin -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- Spring Boot End -->

        <!-- Spring Cloud Begin -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <!-- Spring Cloud End -->
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.wj.hello.spring.cloud.alibaba.nacos.provider.NacosProviderApplication</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Application

通過 @EnableDiscoveryClient 注解表明是一個 Nacos 客戶端怜瞒，該注解是 Spring Cloud 提供的原生注解

package com.wj.hello.spring.cloud.alibaba.nacos.provider;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableDiscoveryClient
public class NacosProviderApplication {
    public static void main(String[] args) {
        SpringApplication.run(NacosProviderApplication.class, args);
    }

    @RestController
    public class EchoController {
        @GetMapping(value = "/echo/{message}")
        public String echo(@PathVariable String message) {
            return "Hello Nacos Discovery " + message;
        }
    }
}

application.yml

spring:
  application:
    name: nacos-provider
  cloud:
    nacos:
      discovery:
        server-addr: 127.0.0.1:8848

server:
  port: 8081

# 端點檢查，查看服務是否在線
management:
  endpoints:
    web:
      exposure:
        include: "*"

啟動工程

通過瀏覽器訪問 http://localhost:8848/nacos止潮，即 Nacos Server 網(wǎng)址

你會發(fā)現(xiàn)一個服務已經(jīng)注冊在服務中了窃判，服務名為 nacos-provider

這時打開 http://localhost:8081/echo/hi ，你會在瀏覽器上看到：Hello Nacos Discovery hi

服務的端點檢查

spring-cloud-starter-alibaba-nacos-discovery 在實現(xiàn)的時候提供了一個 EndPoint, EndPoint 的訪問地址為 http://ip:port/actuator/nacos-discovery喇闸。 EndPoint 的信息主要提供了兩類:

1袄琳、subscribe: 顯示了當前有哪些服務訂閱者
2、NacosDiscoveryProperties: 顯示了當前服務實例關(guān)于 Nacos 的基礎(chǔ)配置

通過瀏覽器訪問 http://localhost:8081/actuator/nacos-discovery 你會在瀏覽器上看到：

附：Nacos Starter 更多配置項信息