一。Idea构建maven多模块项目

1。创建maven项目--创建父模块

【1】。File->New->Module...

【2】。点击next,填写:GroupId,ArtifactId和Version

注:ArtifactId即为项目名字。

【3】。点击next,添加参数archetypeCatalog=internal(不加该参数,在maven生成骨架时会非常慢)

注:

archetypeCatalog表示插件使用的archetype元数据,不加这个参数时默认为remote,local,即中央仓库archetype元数据,
由于中央仓库的archetype太多了所以导致很慢,指定internal来表示仅使用内部元数据。

【4】点击next,填写module name(模块名称)->finish

【5】。项目结构如下所示:

2。创建module子模块

【1】右击项目-》new Module..

【2】新建Module同1创建父模块。

修改点:

(1)。ArtifactId:ssm-web

(2)。Modual name:ssm-web

最终项目架构如下所示:

3。每个模块中依赖pom.xml配置

maven模块结构图:

---web-ssm

    |--pom.xml(pom)

    |--ssm-web

      |--pom.xml(war)

    |--ssm-service

      |--pom.xml(jar)

    |--ssm-dao

      |--pom.xml(jar)

    |--ssm-model

      |--pom.xml(jar)

注意:括号中标识的是模块的打包(packaging类型)。父项目只能为pom,子项目根据包含内容具体考虑打jar/war包。

maven依赖传递性:

|-ssm-dao模块:负责与数据库交互,持久层。依赖于model层(ssm-model)

ssm-dao->依赖->ssm-model

|-ssm-service模块:负责业务逻辑处理,事务控制层。调用dao传递处理结果。依赖于dao层(ssm-dao)。

而dao依赖于model层。所以service依赖于model层(ssm-model)

ssm-service->依赖->ssm-dao->依赖->ssm-model

|-ssm-web模块:负责与客户端交互,控制层。主要为springmvc的controller类/struts的action类。

依赖于service层。依赖于dao层,依赖于model层。(依赖传递性)

ssm-web->依赖->ssm-service->依赖->ssm-dao->依赖->ssm-model

|-ssm-model模块:独立模块,不依赖于任何其他模块

上述:除非配置了特殊的依赖scope。否则依赖均具有传递性。

【1】。ssm-web子模块

 <?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">
<parent>
<artifactId>web-ssm</artifactId>
<groupId>com.yufeng.web</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion> <groupId>com.yufeng.web</groupId>
<artifactId>ssm-web</artifactId>
<packaging>war</packaging> <name>ssm-web Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- web层添加对model的依赖-->
<dependency>
<groupId>com.yufeng.web</groupId>
<artifactId>ssm-model</artifactId>
<version>${project.version}</version>
</dependency>
<!-- web层添加对service的依赖-->
<dependency>
<groupId>com.yufeng.web</groupId>
<artifactId>ssm-service</artifactId>
<version>${project.version}</version>
</dependency>
<!-- web层添加对dao的依赖-->
<dependency>
<groupId>com.yufeng.web</groupId>
<artifactId>ssm-dao</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies> <build>
<finalName>ssm-web</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

【2】。ssm-service子模块

 <?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">
<parent>
<artifactId>web-ssm</artifactId>
<groupId>com.yufeng.web</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion> <groupId>com.yufeng.web</groupId>
<artifactId>ssm-service</artifactId>
<packaging>jar</packaging> <name>ssm-service Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- service层添加对model的依赖-->
<dependency>
<groupId>com.yufeng.web</groupId>
<artifactId>ssm-model</artifactId>
<version>${project.version}</version>
</dependency>
<!-- service层添加对dao的依赖-->
<dependency>
<groupId>com.yufeng.web</groupId>
<artifactId>ssm-dao</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies> <build>
<finalName>ssm-service</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

【3】。ssm-dao子模块

 <?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">
<parent>
<artifactId>web-ssm</artifactId>
<groupId>com.yufeng.web</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion> <groupId>com.yufeng.web</groupId>
<artifactId>ssm-dao</artifactId>
<packaging>jar</packaging> <name>ssm-dao Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- dao层添加对model的依赖-->
<dependency>
<groupId>com.yufeng.web</groupId>
<artifactId>ssm-model</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies> <build>
<finalName>ssm-dao</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

【4】。ssm-model子模块

 <?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">
<parent>
<artifactId>web-ssm</artifactId>
<groupId>com.yufeng.web</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion> <groupId>com.yufeng.web</groupId>
<artifactId>ssm-model</artifactId>
<packaging>jar</packaging> <name>ssm-model Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies> <build>
<finalName>ssm-model</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

【5】。web-ssm父模块(聚合子模块modules)

 <?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.yufeng.web</groupId>
<artifactId>web-ssm</artifactId>
<version>1.0-SNAPSHOT</version>
<!--注意:父模块的packaging是pom ,表示该工程为pom类型。子模块的packaging可以为jar/war-->
<packaging>pom</packaging> <!-- maven聚合,聚合子模块。<module>配置的是子模块的artifactId唯一.-->
<modules>
<module>ssm-web</module>
<module>ssm-service</module>
<module>ssm-dao</module>
<module>ssm-model</module>
</modules> <name>web-ssm Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url> <properties>
<!-- 项目统一编码格式-->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies> <build>
<finalName>web-ssm</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

上述:Maven多模块项目已经搭建完成。

下述:整合spring+springmvc+mybatis。

参考网址:http://www.imooc.com/article/19789

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