1. 继承
TCSTAR7034
之前我们学习Maven的聚合机制遗留个问题,就是多个模块的pom.xml文件的内容出现了冗余、重复的内容,解决这个问题其实使用Maven的继承机制即可,就像Java的继承一样,父类就像一个模板,子类继承自父类,那么有些通用的方法、变量都不必在子类中再重复声明了,Maven的继承机制类似,在一个父级别的Maven的pom文件中定义了相关的常量、依赖、插件等等配置后,实际项目模块可以继承此父项目的pom文件,重复的项不必显示的再声明一遍了,相当于父Maven项目就是个模板,等着其他子模块去继承。不过父Maven项目要高度抽象,高度提取公共的部分(交集)。笔者使用了先前的聚合项目模块做的父模板pom,实际上很多机构也是这么实施的。
商账追收<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.liuyan.account</groupId>
<artifactId>MavenAccount-aggregator</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<properties>
<springversion>2.5.6</springversion>
<junitversion>2.5.6</junitversion>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${springversion}</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4.1</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.icegreen</groupId>
<artifactId>greenmail</artifactId>
<version>1.3.1b</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resource</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>2.1.1</version>
<executions>
<execution>
<id>buildSource</id>
<goals>
<goal>jar-no-fork</goal>
</goals>
<inherited>false</inherited>
<configuration>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</build>
<modules>
<module>../MavenAccount-email</module>
<module>../MavenAccount-persist</module>
</modules>
</project>
posted on 2011-06-08 09:29
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