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  • Java单体应用

    原文地址:http://www.work100.net/training/monolithic-frameworks-spring-mvc-maven-module.html
    更多教程:光束云 - 免费课程

    Maven 模块化开发

    序号 文内章节 视频
    1 概述 -
    2 创建根项目(工程) -
    3 创建统一的依赖管理模块 -
    4 创建通用的工具类模块 -
    5 创建领域模型模块 -
    6 创建管理后台模块 -
    7 创建前端控制台模块 -
    8 创建接口模块 -
    9 清理、编译、打包 -
    10 功能完善 -
    11 实例源码 -

    请参照如上章节导航进行阅读

    1.概述

    在多人协同开发时,特别是规模较大的项目,为了方便日后的代码维护和管理,我们会将每个开发人员的工作细分到具体的功能和模块上。
    随着项目的不断扩大,模块也会越来越多,后续会更加难以维护和扩展,为了应对这种情况后期我们还会采用微服务架构的方式进行开发。

    本章节以构建一个 IoT云平台 项目为例,我们可以将模块划分为如下形式:

    • 统一的依赖管理(dependencies
    • 通用的工具类(commons
    • 领域模型(domain
    • 管理后台(admin
    • 前端控制台(console
    • 接口模块(api

    整个模块化开发过程主要是在开发思想上稍作了一些转变,只需要按照下面的流程操作即可。

    2.创建根项目(工程)

    创建一个名为 iot-cloud 的工程,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
        <artifactId>iot-cloud</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <packaging>pom</packaging>
    
        <modules>
    
        </modules>
    </project>
    

    该项目称之为 Root 项目,主要作用是管理整个工程的全部模块,当有新模块加入时需要在 modules 元素下配置对应的模块目录

    3.创建统一的依赖管理模块

    创建一个名为 iot-cloud-dependencies 的项目,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
            <artifactId>iot-cloud</artifactId>
            <version>1.0.0-SNAPSHOT</version>
            <relativePath>../pom.xml</relativePath>
        </parent>
    
        <artifactId>iot-cloud-dependencies</artifactId>
        <packaging>pom</packaging>
    
        <name>iot-cloud-dependencies</name>
        <description></description>
    
        <properties>
            <!-- 环境配置 -->
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
    
            <!-- 统一的依赖管理 -->
            <spring.version>5.2.3.RELEASE</spring.version>
    
            <javax.servlet-api.version>4.0.1</javax.servlet-api.version>
            <javax.jstl.version>1.2</javax.jstl.version>
    
            <log4j.version>1.2.17</log4j.version>
            <slf4j.version>1.7.25</slf4j.version>
    
            <commons-lang3.version>3.5</commons-lang3.version>
        </properties>
    
        <dependencyManagement>
            <dependencies>
                <!-- Spring Begin -->
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-webmvc</artifactId>
                    <version>${spring.version}</version>
                </dependency>
                <!-- Spring End -->
    
                <!-- Servlet Begin -->
                <dependency>
                    <groupId>javax.servlet</groupId>
                    <artifactId>javax.servlet-api</artifactId>
                    <version>${javax.servlet-api.version}</version>
                    <scope>provided</scope>
                </dependency>
                <dependency>
                    <groupId>javax.servlet</groupId>
                    <artifactId>jstl</artifactId>
                    <version>${javax.jstl.version}</version>
                </dependency>
                <!-- Servlet End -->
    
                <!-- Log Begin -->
                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                    <version>${slf4j.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                    <version>${slf4j.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>jcl-over-slf4j</artifactId>
                    <version>${slf4j.version}</version>
                </dependency>
                <dependency>
                    <groupId>org.slf4j</groupId>
                    <artifactId>jul-to-slf4j</artifactId>
                    <version>${slf4j.version}</version>
                </dependency>
                <dependency>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                    <version>${log4j.version}</version>
                </dependency>
                <!-- Log End -->
    
                <!-- Commons Begin -->
                <dependency>
                    <groupId>org.apache.commons</groupId>
                    <artifactId>commons-lang3</artifactId>
                    <version>${commons-lang3.version}</version>
                </dependency>
                <!-- Commons End -->
            </dependencies>
        </dependencyManagement>
    
        <build>
            <plugins>
                <!-- Compiler 插件, 设定 JDK 版本 -->
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.7.0</version>
                    <configuration>
                        <source>${java.version}</source>
                        <target>${java.version}</target>
                        <encoding>${project.build.sourceEncoding}</encoding>
                        <showWarnings>true</showWarnings>
                    </configuration>
                </plugin>
            </plugins>
    
            <!-- 资源文件配置 -->
            <resources>
                <resource>
                    <directory>src/main/java</directory>
                    <excludes>
                        <exclude>**/*.java</exclude>
                    </excludes>
                </resource>
                <resource>
                    <directory>src/main/resources</directory>
                </resource>
            </resources>
        </build>
    </project>
    

    然后修改 iot-cloud 工程的 pom.xml 文件:

    <?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>net.work100.training.stage2</groupId>
        <artifactId>iot-cloud</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <packaging>pom</packaging>
    
        <modules>
            <module>iot-cloud-dependencies</module>
        </modules>
    </project>
    

    4.创建通用的工具类模块

    创建一个名为 iot-cloud-commons 的项目,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
            <artifactId>iot-cloud-dependencies</artifactId>
            <version>1.0.0-SNAPSHOT</version>
            <relativePath>../iot-cloud-dependencies/pom.xml</relativePath>
        </parent>
    
        <artifactId>iot-cloud-commons</artifactId>
        <packaging>jar</packaging>
    
        <name>iot-cloud-commons</name>
        <description></description>
    
        <dependencies>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
            </dependency>
        </dependencies>
    </project>
    

    然后在 iot-cloud 工程的 pom.xml 中增加 <module>iot-cloud-commons</module> 配置

    5.创建领域模型模块

    创建一个名为 iot-cloud-domain 的项目,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
            <artifactId>iot-cloud-dependencies</artifactId>
            <version>1.0.0-SNAPSHOT</version>
            <relativePath>../iot-cloud-dependencies/pom.xml</relativePath>
        </parent>
    
        <artifactId>iot-cloud-domain</artifactId>
        <packaging>jar</packaging>
    
        <name>iot-cloud-domain</name>
        <description></description>
    
    </project>
    

    然后在 iot-cloud 工程的 pom.xml 中增加 <module>iot-cloud-domain</module> 配置

    6.创建管理后台模块

    创建一个名为 iot-cloud-web-admin 的项目,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
            <artifactId>iot-cloud-dependencies</artifactId>
            <version>1.0.0-SNAPSHOT</version>
            <relativePath>../iot-cloud-dependencies/pom.xml</relativePath>
        </parent>
    
        <artifactId>iot-cloud-web-admin</artifactId>
        <packaging>war</packaging>
    
        <name>iot-cloud-web-admin</name>
        <description></description>
    
        <dependencies>
            <dependency>
                <groupId>net.work100.training.stage2</groupId>
                <artifactId>iot-cloud-domain</artifactId>
                <version>${project.parent.version}</version>
            </dependency>
        </dependencies>
    </project>
    

    然后在 iot-cloud 工程的 pom.xml 中增加 <module>iot-cloud-web-admin</module> 配置

    7.创建前端控制台模块

    创建一个名为 iot-cloud-web-console 的项目,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
            <artifactId>iot-cloud-dependencies</artifactId>
            <version>1.0.0-SNAPSHOT</version>
            <relativePath>../iot-cloud-dependencies/pom.xml</relativePath>
        </parent>
    
        <artifactId>iot-cloud-web-console</artifactId>
        <packaging>war</packaging>
    
        <name>iot-cloud-web-console</name>
        <description></description>
    </project>
    

    然后在 iot-cloud 工程的 pom.xml 中增加 <module>iot-cloud-web-console</module> 配置

    8.创建接口模块模块

    创建一个名为 iot-cloud-web-api 的项目,pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
            <artifactId>iot-cloud-dependencies</artifactId>
            <version>1.0.0-SNAPSHOT</version>
            <relativePath>../iot-cloud-dependencies/pom.xml</relativePath>
        </parent>
    
        <artifactId>iot-cloud-web-api</artifactId>
        <packaging>war</packaging>
    
        <name>iot-cloud-web-api</name>
        <description></description>
    </project>
    

    然后在 iot-cloud 工程的 pom.xml 中增加 <module>iot-cloud-web-api</module> 配置

    9.清理、编译、打包

    至此一个完整的模块化工程创建完毕,此时的 Root 工程 pom.xml 文件如下:

    <?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>net.work100.training.stage2</groupId>
        <artifactId>iot-cloud</artifactId>
        <version>1.0.0-SNAPSHOT</version>
        <packaging>pom</packaging>
    
        <modules>
            <module>iot-cloud-dependencies</module>
            <module>iot-cloud-commons</module>
            <module>iot-cloud-domain</module>
            <module>iot-cloud-web-admin</module>
            <module>iot-cloud-web-console</module>
            <module>iot-cloud-web-api</module>
        </modules>
    </project>
    

    我们可以在 Root 工程中使用 Maven 提供的 mvn clean 命令测试一下效果,控制台输出如下:

    [INFO] Scanning for projects...
    [INFO] ------------------------------------------------------------------------
    [INFO] Reactor Build Order:
    [INFO] 
    [INFO] iot-cloud                                                          [pom]
    [INFO] iot-cloud-dependencies                                             [pom]
    [INFO] iot-cloud-commons                                                  [jar]
    [INFO] iot-cloud-domain                                                   [jar]
    [INFO] iot-cloud-web-admin                                                [war]
    [INFO] iot-cloud-web-console                                              [war]
    [INFO] iot-cloud-web-api                                                  [war]
    [INFO] 
    [INFO] ---------------< net.work100.training.stage2:iot-cloud >----------------
    [INFO] Building iot-cloud 1.0.0-SNAPSHOT                                  [1/7]
    [INFO] --------------------------------[ pom ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud ---
    [INFO] 
    [INFO] ---------< net.work100.training.stage2:iot-cloud-dependencies >---------
    [INFO] Building iot-cloud-dependencies 1.0.0-SNAPSHOT                     [2/7]
    [INFO] --------------------------------[ pom ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud-dependencies ---
    [INFO] 
    [INFO] -----------< net.work100.training.stage2:iot-cloud-commons >------------
    [INFO] Building iot-cloud-commons 1.0.0-SNAPSHOT                          [3/7]
    [INFO] --------------------------------[ jar ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud-commons ---
    [INFO] 
    [INFO] ------------< net.work100.training.stage2:iot-cloud-domain >------------
    [INFO] Building iot-cloud-domain 1.0.0-SNAPSHOT                           [4/7]
    [INFO] --------------------------------[ jar ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud-domain ---
    [INFO] 
    [INFO] ----------< net.work100.training.stage2:iot-cloud-web-admin >-----------
    [INFO] Building iot-cloud-web-admin 1.0.0-SNAPSHOT                        [5/7]
    [INFO] --------------------------------[ war ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud-web-admin ---
    [INFO] 
    [INFO] ---------< net.work100.training.stage2:iot-cloud-web-console >----------
    [INFO] Building iot-cloud-web-console 1.0.0-SNAPSHOT                      [6/7]
    [INFO] --------------------------------[ war ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud-web-console ---
    [INFO] 
    [INFO] -----------< net.work100.training.stage2:iot-cloud-web-api >------------
    [INFO] Building iot-cloud-web-api 1.0.0-SNAPSHOT                          [7/7]
    [INFO] --------------------------------[ war ]---------------------------------
    [INFO] 
    [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ iot-cloud-web-api ---
    [INFO] ------------------------------------------------------------------------
    [INFO] Reactor Summary for iot-cloud 1.0.0-SNAPSHOT:
    [INFO] 
    [INFO] iot-cloud .......................................... SUCCESS [  0.160 s]
    [INFO] iot-cloud-dependencies ............................. SUCCESS [  0.002 s]
    [INFO] iot-cloud-commons .................................. SUCCESS [  0.002 s]
    [INFO] iot-cloud-domain ................................... SUCCESS [  0.002 s]
    [INFO] iot-cloud-web-admin ................................ SUCCESS [  0.002 s]
    [INFO] iot-cloud-web-console .............................. SUCCESS [  0.003 s]
    [INFO] iot-cloud-web-api .................................. SUCCESS [  0.002 s]
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time:  0.320 s
    [INFO] Finished at: 2020-02-22T15:49:59+08:00
    [INFO] ------------------------------------------------------------------------
    

    10.功能完善

    请观看视频教程

    11.实例源码

    实例源码已经托管到如下地址:


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  • 原文地址:https://www.cnblogs.com/liuxiaojun/p/training-monolithic-frameworks-spring-mvc-maven-module.html
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