專案開發需要有多個環境，一般為開發，測試，預發，正式4個環境，通過maven可以實現按不同環境進行打包部署，命令為: 

mvn package -P dev

其中“dev“為環境的變數id, 可以自己定義， 我定義的名稱為：dev,sit,uat,prod , 具體在pom.xml中的配置如下：

<properties>
		<package.environment>sit</package.environment>
	</properties>
	<profiles>
		<profile>
			<id>dev</id>
			<properties>
				<package.environment>dev</package.environment>
			</properties>
		</profile>
		<profile>
			<id>sit</id>
			<properties>
				<package.environment>sit</package.environment>
			</properties>
		</profile>
		<profile>
			<id>uat</id>
			<properties>
				<package.environment>uat</package.environment>
			</properties>
		</profile>
		<profile>
			<id>prod</id>
			<properties>
				<package.environment>prod</package.environment>
			</properties>
		</profile>
	</profiles>
  
  <build>
    <finalName>mytest</finalName>
    <plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
			<configuration>
				<encoding>UTF-8</encoding>
				<source>1.8</source>
				<target>1.8</target>  <!-- 指定編譯級別，預設1.5 -->
			</configuration>
		</plugin>

		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-war-plugin</artifactId>
			<version>2.1.1</version>
			<configuration>
				<archive>
					<addMavenDescriptor>false</addMavenDescriptor>
				</archive>
				<webResources>
					<resource>
						this is relative to the pom.xml directory
						<directory>src/main/resources/${package.environment}</directory>
						<targetPath>WEB-INF/classes</targetPath>
						<filtering>true</filtering>
					</resource>
				</webResources>
			</configuration>
		</plugin>
	</plugins>
	<resources>
		<resource>
			<directory>src/main/java</directory>
			<includes>
				<include>**/*.xml</include>
			</includes>
		</resource>
		<resource>
			<directory>src/main/resources</directory>
			<includes>
				<include>**/*.*</include>
			</includes>
			<excludes>
				<exclude>sql/oracle/*.*</exclude>
				<exclude>sql/mysql/init/*.*</exclude>
				<exclude>sit/**/*.*</exclude>
				<exclude>uat/**/*.*</exclude>
				<exclude>prod/**/*.*</exclude>
			</excludes>
		</resource>
	</resources>
  </build>