目前微服务开发框架基本上都是采用Spring Cloud ，但是由于Eureka已经不再开源，所以在服务注册与发现慢慢都不再采用Eureka了，而是转到阿里的Nacos上了。因为Nacos也支持配置管理，所以配置管理这块也基本采用Nacos了。当然了你也可以使用携程的Apollo，也是很不错的。Nacos都能解决也就不多此一举了。下面主要介绍下Spring Cloud 与Alibaba微服务组件的集成。

集成的各个组件的版本如下

1、Spring Cloud ： Hoxton.SR8

2、Spring boot ：2.3.2.RELEASE

3、Alibaba Cloud ：2.2.3.RELEASE

一、创建maven父依赖

创建自己的父依赖，不直接继承Spring Boot。因为直接继承Spring boot 会带来很多不便，不能集成其他组件了。 创建maven项目test-parent, POM文件如下

<?xml version="1.0" encoding="UTF-8"?><project xmlns=";	xmlns:xsi=";	xsi:schemaLocation=" ;>	<modelVersion>4.0.0</modelVersion>	<groupId>com.test.parent</groupId>	<artifactId>test-parent</artifactId>  <version>1.0.0</version>	<packaging>pom</packaging>	<description>Spring Cloud Alibaba Spring Boot</description>		<properties>     	       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>		        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>            <java.version>1.8</java.version>		        <alibaba.cloud.version>2.2.3.RELEASE</alibaba.cloud.version>		        <spring.cloud.version>Hoxton.SR8</spring.cloud.version>		        <spring.boot.version>2.3.2.RELEASE</spring.boot.version>	</properties>		<dependencies>	</dependencies>	<dependencyManagement>		<dependencies>			<dependency>				<groupId>org.springframework.cloud</groupId>				<artifactId>spring-cloud-dependencies</artifactId>				<version>${spring.cloud.version}</version>				<type>pom</type>				<scope>import</scope>			</dependency>			<dependency>				<groupId>com.alibaba.cloud</groupId>				<artifactId>spring-cloud-alibaba-dependencies</artifactId>				<version>${alibaba.cloud.version}</version>				<type>pom</type>				<scope>import</scope>			</dependency>			<dependency>				<groupId>org.springframework.boot</groupId>				<artifactId>spring-boot-dependencies</artifactId>				<version>${spring.boot.version}</version>				<type>pom</type>				<scope>import</scope>			</dependency>		</dependencies>	</dependencyManagement></project>

二、创建微服务test-user

1、创建服务POM文件如下

<project xmlns=";	xmlns:xsi=";	xsi:schemaLocation=" ;>	<parent>		<groupId>com.test.parent</groupId>		<artifactId>test-parent</artifactId>		<version>1.0.0</version>	</parent>	<modelVersion>4.0.0</modelVersion>	<artifactId>test-user</artifactId>	<packaging>jar</packaging>	<dependencies>		<dependency>			<groupId>org.springframework.boot</groupId>			<artifactId>spring-boot-starter-web</artifactId>		</dependency>		<dependency>			<groupId>org.springframework.boot</groupId>			<artifactId>spring-boot-starter-test</artifactId>			<scope>test</scope>			<exclusions>				<exclusion>					<groupId>org.junit.vintage</groupId>					<artifactId>junit-vintage-engine</artifactId>				</exclusion>			</exclusions>		</dependency>		<dependency>			<groupId>com.alibaba.cloud</groupId>			<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>		</dependency>		<dependency>			<groupId>com.alibaba.cloud</groupId>			<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>		</dependency>	</dependencies>	<build>		<finalName>test-user</finalName>		<plugins>			<plugin>				<groupId>org.springframework.boot</groupId>				<artifactId>spring-boot-maven-plugin</artifactId>				<version>${spring.boot.version}</version>				<executions>					<execution>						<goals>							<goal>repackage</goal>						</goals>					</execution>				</executions>			</plugin>		</plugins>	</build></project>

2、创建test-user配置文件 bootstrap.yml

server:    port: 8081spring:    profiles:       active: dev    application:        name: test-user-service    cloud:       nacos:          config:            namespace: ${spring.profiles.active}            server-addr: 127.0.0.1:8848            extension-configs[0]:                     data-id: test_user_db.yml                    group: DEFAULT_GROUP                    refresh: true            extension-configs[1]:                    data-id: test_user_commons.yml                    group: DEFAULT_GROUP                    refresh: true

a、Nacos中添加配置test_user_db.yml的内容如下：

 spring:    datasource:          url: jdbc:mysql://127.0.0.1:3306/test_user?useSSL=false&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&serverTimezone=Asia/Shanghai         username: root         password: test_user         type: com.alibaba.druid.pool.DruidDataSource         driver-class-name: com.mysql.cj.jdbc.Driver         filter: stat         maxActive: 20         initialSize: 1         maxWait: 60000         minIdle: 1         timeBetweenEvictionRunsMillis: 60000         minEvictableIdleTimeMillis: 300000         validationQuery: select 'x'         testWhileIdle: true         testOnBorrow: false         testOnReturn: false         poolPreparedStatements: true         maxOpenPreparedStatements: 20mybatis-plus:       mapper-locations: classpath:sqlmapper/**/*.xml       type-aliases-package: com.test.user.dao.entity       configuration:             log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

b、Nacos中添加配置test_user_commons.yml的内容如下

#nacos 注册发现配置spring:    cloud:      nacos:        discovery:           namespace: dev           server-addr: 127.0.0.1:8848management:      endpoints:           web:              exposure:                  include: "*"

到此 Spring Cloud Alibaba Spring boot 微服务集成就全部完成了。下次准备再把Spring Cloud Alibaba String Boot Dubbo 做个集成