Maven根据不同个环境打包, 获取不同的配置文件等等

这段时间接触Maven, 发现还是个不错的东西, 我在OpenShift申请了一个账号, 准备自己做一个自己的网站, 它默认是Maven管理的, 也可以自己用其他的. 但是我要打war, 然后发布. 我本地的测试配置文件 与 线上的配置不一样, SB的做法就是每次复制粘贴, 这太.... 所以, 我必须要在本地的IDEA里面一样, 需要谁作为我的资源文件就要作为的我资源文件, 那就方便了, 找了很多的BLGO, 说的很好, 就是琳琳碎碎的. 还不如给我一个pom.xml了. 以至于我一直没有跑起来, 或者他们的碎片就是不完整的, 自己折腾了半天, 并且自己测试, 上线, 都OK. ...

<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>book</groupId>      <artifactId>book</artifactId>      <packaging>war</packaging>      <version>1.0</version>      <name>book</name>        <repositories>          <repository>              <id>eap</id>              <url>http://maven.repository.redhat.com/techpreview/all</url>              <releases>                  <enabled>true</enabled>              </releases>              <snapshots>                  <enabled>true</enabled>              </snapshots>          </repository>      </repositories>        <pluginRepositories>          <pluginRepository>              <id>eap</id>              <url>http://maven.repository.redhat.com/techpreview/all</url>              <releases>                  <enabled>true</enabled>              </releases>              <snapshots>                  <enabled>true</enabled>              </snapshots>          </pluginRepository>      </pluginRepositories>        <properties>          <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>          <maven.compiler.source>1.6</maven.compiler.source>          <maven.compiler.target>1.6</maven.compiler.target>            <package.environment>local</package.environment>      </properties>        <dependencies>            <dependency>              <groupId>org.postgresql</groupId>              <artifactId>postgresql</artifactId>              <version>9.2-1003-jdbc4</version>          </dependency>            <dependency>              <groupId>mysql</groupId>              <artifactId>mysql-connector-java</artifactId>              <version>5.1.25</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-test</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-webmvc</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-core</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-web</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-context</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-context-support</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-aop</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>            <dependency>              <groupId>org.springframework</groupId>              <artifactId>spring-aspects</artifactId>              <version>3.2.0.RELEASE</version>          </dependency>              <dependency>              <groupId>javax.servlet</groupId>              <artifactId>servlet-api</artifactId>              <version>2.5</version>              <scope>provided</scope>          </dependency>            <dependency>              <groupId>javax.servlet.jsp</groupId>              <artifactId>jsp-api</artifactId>              <version>2.2</version>              <scope>provided</scope>          </dependency>            <dependency>              <groupId>log4j</groupId>              <artifactId>log4j</artifactId>              <version>1.2.17</version>          </dependency>        </dependencies>          <profiles>          <profile>              <id>local</id>              <properties>                  <package.environment>local</package.environment>              </properties>              <activation>                  <activeByDefault>true</activeByDefault>              </activation>          </profile>          <profile>              <id>product</id>              <properties>                  <package.environment>product</package.environment>              </properties>          </profile>      </profiles>        <build>          <finalName>book</finalName>          <resources>              <resource>                  <directory>src/main/resources</directory>                  <filtering>true</filtering>                  <excludes>                      <exclude>local/*</exclude>                      <exclude>product/*</exclude>                      <exclude>public/*</exclude>                  </excludes>              </resource>          </resources>            <plugins>              <plugin>                  <groupId>org.apache.maven.plugins</groupId>                  <artifactId>maven-war-plugin</artifactId>                  <version>2.1.1</version>                  <configuration>                      <archive>                          <addMavenDescriptor>false</addMavenDescriptor>                      </archive>                      <warName>book</warName>                      <webResources>                          <resource>                              <directory>src/main/resources/${package.environment}</directory>                              <targetPath>WEB-INF/classes</targetPath>                              <filtering>true</filtering>                          </resource>                          <resource>                              <directory>src/main/resources/public</directory>                              <targetPath>WEB-INF/classes</targetPath>                              <filtering>true</filtering>                          </resource>                          <!--<resource>-->                              <!--<directory>${project.build.directory}/classes</directory>-->                              <!--<includes>-->                                  <!--<include>**/*.properties</include>-->                                  <!--<include>**/*.xml</include>-->                              <!--</includes>-->                          <!--</resource>-->                      </webResources>                  </configuration>              </plugin>          </plugins>      </build>    </project>

其中, 我们注意的地方: 我解释一下:

<profiles>          <profile>              <id>local</id>              <properties>                  <package.environment>local</package.environment>              </properties>              <activation>                  <activeByDefault>true</activeByDefault>              </activation>          </profile>          <profile>              <id>product</id>              <properties>                  <package.environment>product</package.environment>              </properties>          </profile>      </profiles>

    这里就是不同的resources文件夹, 我这里只区分本地 产品; 设置为true的就是默认被激活的. 所以后面打包默认就是本地;

<resources>              <resource>                  <directory>src/main/resources</directory>                  <filtering>true</filtering>                  <excludes>                      <exclude>local/*</exclude>                      <exclude>product/*</exclude>                      <exclude>public/*</exclude>                  </excludes>              </resource>          </resources>

    这里就是我的资源文件, public里面存放我的公用的, 比如Spring的配置文件, 就是本地与产品都一样的;local 与 product一看就知道了; 

<plugin>                  <groupId>org.apache.maven.plugins</groupId>                  <artifactId>maven-war-plugin</artifactId>                  <version>2.1.1</version>                  <configuration>                      <archive>                          <addMavenDescriptor>false</addMavenDescriptor>                      </archive>                      <warName>book</warName>                      <webResources>                          <resource>                              <directory>src/main/resources/${package.environment}</directory>                              <targetPath>WEB-INF/classes</targetPath>                              <filtering>true</filtering>                          </resource>                          <resource>                              <directory>src/main/resources/public</directory>                              <targetPath>WEB-INF/classes</targetPath>                              <filtering>true</filtering>                          </resource>                          <!--<resource>-->                              <!--<directory>${project.build.directory}/classes</directory>-->                              <!--<includes>-->                                  <!--<include>**/*.properties</include>-->                                  <!--<include>**/*.xml</include>-->                              <!--</includes>-->                          <!--</resource>-->                      </webResources>                  </configuration>              </plugin>

这里就是war的插件了, 

${package.environment}

就是动态指定文件夹了.

<filtering>true</filtering>

这里一定需要设置为true才行.

然后就差不多了. 最后执行 mvn clean ; mvn compile; mvn package; 这里是Maven的生命周期, 其他介绍的文章太多了, 我就不再具体讲. 如果说我要打product的war包; 

mvn clean ; mvn compile; mvn -Pproduct package; 

那就激活了product 的资源文件;

就这样子, 很简单吧~

来自：http://my.oschina.net/vernon/blog/271970