一.为什么要进行分模块设计
当我们开发一个大型项目时，里面会有很多的功能，这些功能会对应于模块。如果这些功能混杂在一起，不方便我们代码的管理和维护。 同时想要再次使用也难以复用。因此我们要进行分模块设计，将其中的固定模块拆分出来，既方便代码维护，也方便复用。
二.实例
将pojo和utils拆分出来作为单独的模块。
创建好的目录结构如下：
三.在tlias-pojo和tlias-utils模块中引入对应的依赖解决报错问题，并在tlias-web-management中引入对应的依赖就行。
tlias-pojo
<?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><parent><groupId>com.gjw</groupId><artifactId>tlias-parent</artifactId><version>1.0-SNAPSHOT</version><!-- 配置父工程的pom文件路径 --><relativePath>../tlias-parent/pom.xml</relativePath></parent><groupId>com.gjw</groupId><artifactId>tlias-pojo</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties>
</project>tlias-utils
<?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><parent><groupId>com.gjw</groupId><artifactId>tlias-parent</artifactId><version>1.0-SNAPSHOT</version><relativePath>../tlias-parent/pom.xml</relativePath></parent><groupId>com.gjw</groupId><artifactId>tlias-utils</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>3.4.1</version></dependency><!-- aliyun oss依赖 --><dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId></dependency><dependency><groupId>javax.xml.bind</groupId><artifactId>jaxb-api</artifactId></dependency><dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId></dependency><!-- no more than 2.3.3--><dependency><groupId>org.glassfish.jaxb</groupId><artifactId>jaxb-runtime</artifactId></dependency><!-- 设置JWT令牌 --><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt-api</artifactId></dependency><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt-impl</artifactId></dependency><dependency><groupId>io.jsonwebtoken</groupId><artifactId>jjwt-gson</artifactId></dependency></dependencies></project>tlias-web-management
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.gjw</groupId><artifactId>tlias-parent</artifactId><version>1.0-SNAPSHOT</version><relativePath>../tlias-parent/pom.xml</relativePath></parent><artifactId>tlias-web-management</artifactId><version>0.0.1-SNAPSHOT</version><name>tlias-web-management</name><description>tlias-web-management</description><url/><licenses><license/></licenses><developers><developer/></developers><scm><connection/><developerConnection/><tag/><url/></scm><properties><java.version>17</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId></dependency><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId><scope>runtime</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper-spring-boot-starter</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter-test</artifactId><scope>test</scope></dependency><!-- https://mvnrepository.com/artifact/com.alibaba/fastjson --><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId></dependency><!-- AOP --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency><dependency><groupId>com.gjw</groupId><artifactId>tlias-pojo</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>com.gjw</groupId><artifactId>tlias-utils</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins></build></project>
