기본적인 pom.xml 설정

1) pom 

    - Projet Object Model

2) pom.xml 

    - Configuration file that defines required dependencies (specified jars - library)

3) 작동 원리

    - build 시, pom.xml 을 읽어서, dependency에 정의된 jar 파일을 Maven Central Binary Repository 에서 download 한다.

    - addressing system 이 있으며, Group Id, Artifact Id, version 정보로 구별한다.

    - scope 에서는 일반적으로 compile을 선택하나, provided를 선택하는 경우도 있다.

      * compile : complie 시 provided 되고, war package에도 포함되는 jar

      * provided : compile 시 provided 되나, war package에는 포함되지 않는 jar

                        ex) servlet-api 는 scope가 provided 이다. deploy 시 tomcat server 가 servlet-api를 제공하기 때문이다.

* Build 시 Maven 이 사용할 java version 지정

    : Properties - Add property 에서 Name 과 Value를 지정

      예를 들어, java 7 버전을 사용한다면, 아래와 같이 설정한다.

       Name : maven.compiler.source

       Value  : 1.7

* 기본으로 설정된 pom.xml 파일 예시

<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.packt</groupId> <artifactId>webstore</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>3.1.4.RELEASE</version> <exclusions> <exclusion> <artifactId>spring-asm</artifactId> <groupId>org.springframework</groupId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>3.1.4.RELEASE</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.2.2</version> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-io</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.10</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.12</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>4.3.1.Final</version> </dependency> <dependency> <groupId>org.springframework.webflow</groupId> <artifactId>spring-webflow</artifactId> <version>2.3.3.RELEASE</version> </dependency> <dependency> <groupId>org.apache.tiles</groupId> <artifactId>tiles-extras</artifactId> <version>3.0.3</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.5</version> </dependency> </dependencies> <properties> <maven.compiler.source>1.7</maven.compiler.source> </properties> </project>