Spring Cloud Alibab简介及初始环境搭建

朱雀 2022-08-31 15:15 176阅读 0赞

### Spring Cloud Alibab简介及初始环境搭建 ###

*   *  Spring Cloud Alibaba简介
     *  Spring Cloud Alibaba组件
     *  初始环境搭建
     *   *  1.新建Module
         *  2.pom.xml

## Spring Cloud Alibaba简介 ##

[Spring Cloud Alibaba][] provides a one-stop solution for distributed application development. It contains all the components required to develop distributed applications, making it easy for you to develop your applications using Spring Cloud. – 摘自官网

译文：Spring Cloud Alibaba是阿里巴巴为分布式应用开发提供一站式解决方案。它包含了开发分布式应用程序所需的所有组件，使您可以轻松地使用Spring Cloud开发应用程序。

## Spring Cloud Alibaba组件 ##

*  **Flow control and service degradation**：flow control, circuit breaking and system adaptive protection with [Alibaba Sentinel][]
 *  **Service registration and discovery**：instances can be registered with [Alibaba Nacos][] and clients can discover the instances using Spring-managed beans. Supports Ribbon, the client side load-balancer via Spring Cloud Netflix
 *  **Distributed Configuration**：using [Alibaba Nacos][] as a data store
 *  **Event-driven**：building highly scalable event-driven microservices connected with Spring Cloud Stream [RocketMQ][] Binder
 *  **Message Bus**: link nodes of a distributed system with Spring Cloud Bus RocketMQ
 *  **Distributed Transaction**：support for distributed transaction solution with high performance and ease of use with [Seata][]
 *  **Dubbo RPC**：extend the communication protocols of Spring Cloud service-to-service calls by [Apache Dubbo RPC][]

<table> 
 <thead> 
  <tr> 
   <th align="center">Spring Cloud组件</th> 
   <th align="center">组件的作用及描述</th> 
   <th align="center">Spring Cloud Alibaba组件</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td align="center">Eureka | consul</td> 
   <td align="center">服务注册与发现</td> 
   <td align="center">Nacos</td> 
  </tr> 
  <tr> 
   <td align="center">RestTemplate OpenFeign</td> 
   <td align="center">服务间通信</td> 
   <td align="center">Dubbo RPC</td> 
  </tr> 
  <tr> 
   <td align="center">Hystrix</td> 
   <td align="center">服务降级、熔断</td> 
   <td align="center">Sentinel</td> 
  </tr> 
  <tr> 
   <td align="center">Bus</td> 
   <td align="center">事件驱动</td> 
   <td align="center">RocketMQ</td> 
  </tr> 
  <tr> 
   <td align="center">–</td> 
   <td align="center">消息总线（异步处理）</td> 
   <td align="center">Message Bus</td> 
  </tr> 
  <tr> 
   <td align="center">–</td> 
   <td align="center">分布式事务</td> 
   <td align="center">Seata</td> 
  </tr> 
  <tr> 
   <td align="center">Config</td> 
   <td align="center">统一配置中心</td> 
   <td align="center">Nacos</td> 
  </tr> 
 </tbody> 
</table>

> 实际开发中，我们是SpringCloud与SpringCloudAlibaba混合使用的。
> 
>  *  服务注册中心 ---------- Nacos
>  *  服务间通信与负载均衡 ---------- HttpRest（a:RestTemplate+Ribbon b: OpenFeign）
>  *  服务流控与服务降级 ---------- Sentinel
>  *  服务网关组件 ---------- Gateway
>  *  统一配置中心 ---------- Nacos

## 初始环境搭建 ##

### 1.新建Module ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JieHlscWYxMjZjb20_size_16_color_FFFFFF_t_70]

### 2.pom.xml ###

这里我们使用的SpringBoot版本是2.2.5.RELEASE、SpringCloud版本是Hoxton.SR6、SpringCloud alibaba的版本是最新的2.2.1.RELEASE

<?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>
    
        <groupId>com.christy</groupId>
        <artifactId>springcloud_alibaba_parent</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.2.5.RELEASE</version>
        </parent>
    
        <properties>
            <maven.compiler.source>8</maven.compiler.source>
            <maven.compiler.target>8</maven.compiler.target>
    
            <spring.cloud.version>Hoxton.SR6</spring.cloud.version>
            <spring.cloud.alibaba.version>2.2.1.RELEASE</spring.cloud.alibaba.version>
        </properties>
    
        
        <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>${spring.cloud.alibaba.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
    
        </dependencyManagement>
    </project>

> springcloud\_alibaba\_parent作为全局的父项目我们就搭建完毕了，下一接我们从服务注册与发现（Nacos）学起。ヾ(◍°∇°◍)ﾉﾞ

> 本系列专题源码已经上传至gitee：https://gitee.com/tide001/springcloud\_parent，欢迎下载交流

[Spring Cloud Alibaba]: https://spring.io/projects/spring-cloud-alibaba
[Alibaba Sentinel]: https://github.com/alibaba/Sentinel/
[Alibaba Nacos]: https://github.com/alibaba/nacos/
[RocketMQ]: https://rocketmq.apache.org/
[Seata]: https://github.com/seata/seata
[Apache Dubbo RPC]: https://dubbo.apache.org/en-us/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JieHlscWYxMjZjb20_size_16_color_FFFFFF_t_70]: /images/20220829/8085c99fa23c44a48176119b6c1f17bd.png