Maven多模塊項目
Maven多模塊項目,適用於一些比較大的項目,通過合理的模塊拆分,實現代碼的復用,便於維護和管理。尤其是一些開源框架,也是采用多模塊的方式,提供插件集成,用戶可以根據需要配置指定的模塊。
項目結構如下:
test-hd-parent (父級)
---pom.xml
---test-hd-api (第三方接口層)
----pom.xml
---test-hd-foundation (基礎工具層)
----pom.xml
---test-hd-resource (資源層)
----pom.xml
---test-hd-service (邏輯業務層)
----pom.xml
---test-hd-modules (web層)
----pom.xml
---test-hd-www (web模塊1)
----pom.xml
---test-hd-admin (web模塊2)
----pom.xml
創建一個父maven工程
- 新建一個maven項目,選擇存儲位置,並選擇創建一個簡單的maven工程
- 輸入Group Id、Artifact Id、Packaging,packaging選擇pom包
- 生成父工程,pom.xml如下
- 刪除工程中的src 目錄
創建子模塊
- 右擊父工程名---》New---》Project,然后選擇新建一個maven module工程
- 設置子工程名以及父工程,再設置快速創建模式
- 得到子工程(test-hd-api,第三方接口層),設置編譯的jdk
- 同理設置,子模塊:test-hd-foundation(基礎工具層)、test-hd-resource(資源層) 、test-hd-service(邏輯業務層)
- 新建test-hd-modules (web層),選擇創建一個a simple project,輸入Group Id、Artifact Id、Packaging,packaging選擇pom包
創建web子模塊
- web子模塊在建在test-hd-modules (web層)里面,右擊test-hd-modules 工程名---》New---》Project,然后選擇新建一個maven module工程,設置子工程名以及父工程,選擇新建web項目
- 配置maven web項目,參照:【Maven】Eclipse 使用Maven創建Java Web項目
- 同理可以配置其他的web子模塊 test-hd-admin(web模塊2)
配置個模塊的依賴
在parent項目pom.xml中建立依賴管理(dependencyManagement)
<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.hd</groupId> <artifactId>test-hd-parent</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>pom</packaging> <modules> <module>test-hd-api</module> <module>test-hd-service</module> <module>test-hd-resource</module> <module>test-hd-foundation</module> <module>test-hd-modules</module> </modules> <!-- maven依賴 --> <dependencyManagement> <dependencies> <!-- hd --> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-service</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-resource</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-foundation</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <!-- Servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.0.1</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2</version> <scope>provided</scope> </dependency> <!-- jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> </dependencyManagement> </project>
test-hd-foundation中的依賴
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>com.hd</groupId> <artifactId>test-hd-parent</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>test-hd-foundation</artifactId> <dependencies> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> </dependency> </dependencies> <build> <plugins> <!-- define the project compile level --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> </build> </project>
test-hd-api中的依賴關系
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>com.hd</groupId> <artifactId>test-hd-parent</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>test-hd-api</artifactId> <dependencies> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-foundation</artifactId> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> </dependency> </dependencies> <build> <plugins> <!-- define the project compile level --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> <finalName>test-hd-api</finalName> </build> </project>
test-hd-resource中的依賴關系
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>com.hd</groupId> <artifactId>test-hd-parent</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>test-hd-resource</artifactId> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> </dependency> </dependencies> <build> <plugins> <!-- define the project compile level --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> </build> </project>
test-hd-service中的依賴關系
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>com.hd</groupId> <artifactId>test-hd-parent</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>test-hd-service</artifactId> <dependencies> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-foundation</artifactId> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-api</artifactId> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> </dependency> </dependencies> <build> <plugins> <!-- define the project compile level --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> <finalName>test-hd-service</finalName> </build> </project>
test-hd-module中的依賴關系
<?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.hd</groupId> <artifactId>test-hd-parent</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>test-hd-modules</artifactId> <packaging>pom</packaging> <modules> <module>test-hd-www</module> <module>test-hd-admin</module> </modules> <dependencies> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-foundation</artifactId> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-service</artifactId> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-api</artifactId> </dependency> <dependency> <groupId>com.hd</groupId> <artifactId>test-hd-resource</artifactId> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> </dependency> </dependencies> </project>
test-hd-www中的依賴關系
<?xml version="1.0"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>com.hd</groupId> <artifactId>test-hd-modules</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>test-hd-www</artifactId> <packaging>war</packaging> <build> <plugins> <!-- define the project compile level --> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> <finalName>test-hd-www</finalName> </build> </project>
- 最后使用maven-update整個工程,右擊父工程名--》Maven--》Update Project
打包和發布
- 打包,右擊父工程名 test-hd-parent---->Run As--->Maven Install
- 打包web子工程,右擊工程名test-hd-www--->Run As ---> Maven Build...---> Goals: clean package--->Run
- 右擊工程名test-hd-www,進行刷新,找到war包,放到tomcat的webapps中,啟動tomcat,即可訪問工程http://localhost:8080/test-hd-www
- 可以去tomcat下面webapps》test-hd-www》WEB-INF》lib中,看到引用的jar包