Spring Cloud Alibaba - 1、Father Project

1、组件

sping-cloud.png
Spring Cloud Gateway：网关
Spring Cloud Ribbon：负载均衡工具
Sentinel：流量控制，降级熔断。类似于Hystrix
Nacos：服务注册中心，跟Eureka功能类似，也可以做服务配置中心
Spring cloud stream & RabbitMQ：构建消息驱动的微服务应用程序框架
Feign：模板化的HTTP客户端，请求远程服务就像调用本地方法
2、项目创建

版本对应

版本.png
创建maven项目（并删除src、iml、.idea文件，只保留pom.xml文件）

maven.png
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>org.example</groupId>
    <artifactId>myspring-cloud</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>pom</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <druid.version>1.1.23</druid.version>
        <log4j.version>1.2.17</log4j.version>
        <junit.version>4.12</junit.version>
        <mybatis-plush.version>3.1.2</mybatis-plush.version>
        <velocity.version>2.1</velocity.version>
        <freemarker.version>2.3.28</freemarker.version>
        <swagger2.version>2.9.2</swagger2.version>
        <xiaoming-swagger.version>1.9.4</xiaoming-swagger.version>
        <hutool.version>5.3.10</hutool.version>
        <fastjson.version>1.2.73</fastjson.version>
        <mysql.version>8.0.21</mysql.version>
    </properties>

    <!-- 子模块继承之后，提供作用：锁定版本+子模块不用写groupId和version  -->
    <dependencyManagement>
        <dependencies>

            <!--  springboot 2.2.5    -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.2.5.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--  springcloud cloud Hoxton.SR3   -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR3</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--  springcloud cloud alibaba 2.2.1.RELEASE    -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.1.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>


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

            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>${log4j.version}</version>
            </dependency>

            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
            </dependency>

            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <scope>runtime</scope>
            </dependency>


            <!--mybatis-plush-->
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>${mybatis-plush.version}</version>
            </dependency>

            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-generator</artifactId>
                <version>${mybatis-plush.version}</version>
            </dependency>

            <dependency>
                <groupId>org.apache.velocity</groupId>
                <artifactId>velocity-engine-core</artifactId>
                <version>${velocity.version}</version>
            </dependency>

            <dependency>
                <groupId>org.freemarker</groupId>
                <artifactId>freemarker</artifactId>
                <version>${freemarker.version}</version>
            </dependency>


            <!--swagger2-->
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>${swagger2.version}</version>
            </dependency>

            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>${swagger2.version}</version>
            </dependency>

            <dependency>
                <!--
                    http://localhost:8080/XXX/doc.html
                -->
                <groupId>com.github.xiaoymin</groupId>
                <artifactId>swagger-bootstrap-ui</artifactId>
                <version>${xiaoming-swagger.version}</version>
            </dependency>

            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.version}</version>
            </dependency>

            <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                    <addResources>true</addResources>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>