公共模块

公共模块主要用于存放各个服务之间共享的代码和配置，包括但不限于：
公共的工具类
公共的配置类
公共的异常处理
此处的公共模块是 hm-common，它的 Maven 配置如下：
<modelVersion>4.0.0</modelVersion>

<parent>
    <artifactId>hmall</artifactId>
    <groupId>com.heima</groupId>
    <version>1.0.0</version>
</parent>

<artifactId>hm-common</artifactId>

<properties>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
</properties>

<dependencies>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-pool2</artifactId>
    </dependency>

    <dependency>
        <groupId>cn.hutool</groupId>
        <artifactId>hutool-all</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-logging</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-core</artifactId>
        <version>9.0.73</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-core</artifactId>
        <version>${mybatis-plus.version}</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-extension</artifactId>
        <version>${mybatis-plus.version}</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.hibernate.validator</groupId>
        <artifactId>hibernate-validator</artifactId>
    </dependency>

    <!-- 引入 Spring Boot 自动配置 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-autoconfigure</artifactId>
    </dependency>

    <dependency>
        <groupId>com.github.xiaoymin</groupId>
        <artifactId>knife4j-openapi2-spring-boot-starter</artifactId>
        <version>4.1.0</version>
    </dependency>

    <dependency>
        <groupId>com.github.ben-manes.caffeine</groupId>
        <artifactId>caffeine</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.amqp</groupId>
        <artifactId>spring-amqp</artifactId>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.amqp</groupId>
        <artifactId>spring-rabbit</artifactId>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.dataformat</groupId>
        <artifactId>jackson-dataformat-xml</artifactId>
        <scope>provided</scope>
    </dependency>
</dependencies>