04-微服务之 SpringCloud

什么是 SpringCloud

SpringCloud 就是基于 SpringBoot 提供的一套微服务解决方案，是关注全局的微服务协调治理框架，是各个微服务架构落地技术的集合体。

SpringCloud 与 SpringBoot 的关系

  • SpringBoot 专注于快速开发单个个体微服务
  • SpringCloud 是关注全局的微服务协调治理框架，它将 SpringBoot 开发的微服务整合并管理起来，为各个微服务之间提供：配置管理、服务发现、断路器、路由、代理、事件总线等集成服务
  • SpringBoot 可以离开 SpringCloud 独立使用，而 SpringCloud 离不开 SpringBoot

SpringCloud 与 SpringBoot 的版本选择

SpringCloud Version

SpringCloud Netflix 环境搭建

  1. 创建通用 Maven 项目：spring-cloud-netflix

  2. 作为总工程，只留一个 pom.xml 文件即可

  3. 编写 pom 定义依赖管理

    pom.xml 
    <?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.kaishen</groupId>
    <artifactId>spring-cloud-netflix</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- 打包方式 -->
    <packaging>pom</packaging>

    <!-- 版本号 -->
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>

        <!-- 日志相关 -->
        <log4j.version>2.17.2</log4j.version>
        <logback.version>1.3.0-alpha14</logback.version>

        <!-- json 相关 -->
        <json.version>20220320</json.version>
        <gson.version>2.9.0</gson.version>

        <!-- J2EE 相关 -->
        <lombok.version>1.18.24</lombok.version>
        <lang3.version>3.12.0</lang3.version>
        <dom4j.version>2.1.3</dom4j.version>
        <commons-io.version>2.11.0</commons-io.version>
        <guava.version>31.1-jre</guava.version>

        <!-- 数据库相关 -->
        <druid.version>1.2.9</druid.version>
        <mysql.version>5.1.47</mysql.version>
        <mybatis.version>2.2.2</mybatis.version>

        <!-- Netflix Component version -->
        <netflix.component.version>1.4.7.RELEASE</netflix.component.version>
    </properties>

    <!-- 依赖管理，此处做管理，每个Module需自行引入所需依赖 -->
    <dependencyManagement>
        <dependencies>
            <!-- SpringCloud 依赖 -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR12</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- SpringBoot 依赖 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.3.12.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- region 通用组件 -->
            <!-- log4j -->
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-core</artifactId>
                <version>${log4j.version}</version>
            </dependency>

            <!-- logback -->
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-core</artifactId>
                <version>${logback.version}</version>
            </dependency>

            <!-- json -->
            <dependency>
                <groupId>org.json</groupId>
                <artifactId>json</artifactId>
                <version>${json.version}</version>
            </dependency>

            <!-- google json -->
            <dependency>
                <groupId>com.google.code.gson</groupId>
                <artifactId>gson</artifactId>
                <version>${gson.version}</version>
            </dependency>

            <!-- Lombok -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
                <scope>provided</scope>
            </dependency>

            <!-- lang3 Java 第二 API -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${lang3.version}</version>
            </dependency>

            <!-- dom4j -->
            <dependency>
                <groupId>org.dom4j</groupId>
                <artifactId>dom4j</artifactId>
                <version>${dom4j.version}</version>
            </dependency>

            <!-- commons-io -->
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>

            <!-- guava 线程池技术 -->
            <dependency>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
                <version>${guava.version}</version>
            </dependency>

            <!-- druid -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>

            <!-- MySQL -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>

            <!-- MyBatis -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <!-- endregion -->

            <!-- region Netflix Component -->
            <!-- Eureka Server -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka-server</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Eureka Client -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Ribbon -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-ribbon</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Feign -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-feign</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Hystrix -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-hystrix</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Dashboard -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Zuul -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-zuul</artifactId>
                <version>${netflix.component.version}</version>
            </dependency>

            <!-- Config Server -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-config-server</artifactId>
                <version>3.1.2</version>
            </dependency>

            <!-- Config Client -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-config</artifactId>
                <version>3.1.2</version>
            </dependency>
            <!-- endregion -->
        </dependencies>
    </dependencyManagement>

</project>

  4. 打包方式改为 pom

  5. 创建 Module，每个 Module 都是一个独立的微服务

SpringCloud Alibaba 环境搭建

由于 SpringCloud Netflix 相关组件停更，Alibaba 便在原有 SpringCloud 的基础上推出了一套替代方案

  1. 创建通用 Maven 项目：spring-cloud-alibaba

  2. 作为总工程，只留一个 pom.xml 文件即可

  3. 编写 pom 定义依赖管理

    pom.xml 
    <?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.kaishen</groupId>
    <artifactId>springcloud</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- 打包方式 -->
    <packaging>pom</packaging>

    <!-- 属性配置 -->
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>

        <!-- 日志相关 -->
        <log4j.version>2.17.2</log4j.version>
        <logback.version>1.3.0-alpha14</logback.version>

        <!-- json 相关 -->
        <json.version>20220320</json.version>
        <gson.version>2.9.0</gson.version>

        <!-- J2EE 相关 -->
        <lombok.version>1.18.24</lombok.version>
        <lang3.version>3.12.0</lang3.version>
        <dom4j.version>2.1.3</dom4j.version>
        <commons-io.version>2.11.0</commons-io.version>
        <guava.version>31.1-jre</guava.version>

        <!-- 数据库相关 -->
        <druid.version>1.2.9</druid.version>
        <mysql.version>5.1.47</mysql.version>
        <mybatis.version>2.2.2</mybatis.version>

        <!-- SpringCloud 组件相关 -->
        <springcloud.version>2021.0.2</springcloud.version>
        <alibaba.cloud.version>2021.0.1.0</alibaba.cloud.version>
        <springboot.version>2.6.7</springboot.version>
        <zk.version>3.1.1</zk.version>
        <consul.version>3.1.0</consul.version>
    </properties>

    <!-- 依赖管理，此处做管理，每个 Module 需自行引入所需依赖 -->
    <dependencyManagement>
        <dependencies>
            <!-- SpringCloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${springcloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- Alibaba Cloud -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${alibaba.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- SpringBoot -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${springboot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- region 通用组件 -->
            <!-- log4j -->
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-core</artifactId>
                <version>${log4j.version}</version>
            </dependency>

            <!-- logback -->
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-core</artifactId>
                <version>${logback.version}</version>
            </dependency>

            <!-- json -->
            <dependency>
                <groupId>org.json</groupId>
                <artifactId>json</artifactId>
                <version>${json.version}</version>
            </dependency>

            <!-- google json -->
            <dependency>
                <groupId>com.google.code.gson</groupId>
                <artifactId>gson</artifactId>
                <version>${gson.version}</version>
            </dependency>

            <!-- Lombok -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
                <scope>provided</scope>
            </dependency>

            <!-- lang3 Java 第二 API -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${lang3.version}</version>
            </dependency>

            <!-- dom4j -->
            <dependency>
                <groupId>org.dom4j</groupId>
                <artifactId>dom4j</artifactId>
                <version>${dom4j.version}</version>
            </dependency>

            <!-- commons-io -->
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>

            <!-- guava 线程池技术 -->
            <dependency>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
                <version>${guava.version}</version>
            </dependency>

            <!-- druid -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>

            <!-- MySQL -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>

            <!-- MyBatis -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <!-- endregion -->

            <!-- Zookeeper -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
                <version>${zk.version}</version>
            </dependency>

            <!-- Consul -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-consul-discovery</artifactId>
                <version>${consul.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

  4. 打包方式改为 pom

  5. 创建 Module，每个 Module 都是一个独立的微服务

posted @   kaishen  阅读(35)  评论(0)  编辑  收藏  举报
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