maven多环境打包

使用的maven-resources-plugin来配置不同的环境，使用不同的资源来达到多环境打包的目的。

在src/main/resources目录下面，按照环境名称建立配置文件目录：

文件中引入maven-resources-plugin插件和相关的标签，引入pom文件部分说明

    <profiles>
        <profile>
            <id>dev</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <package.environment>dev</package.environment>
            </properties>
        </profile>
        <profile>
            <id>test</id>
            <properties>
                <package.environment>test</package.environment>
            </properties>
        </profile>
        <profile>
            <id>prod</id>
            <properties>
                <package.environment>prod</package.environment>
            </properties>
        </profile>
    </profiles>

    <build>
        <finalName>${project.artifactId}</finalName>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.xls</include>
                    <include>**/*.xlsx</include>
                    <include>**/*.png</include>
                    <include>**/*.bpmn</include>
                    <include>**/*.dtd</include>
                </includes>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                    <include>**/*.xsd</include>
                </includes>
                <excludes>
                    <exclude>dev/*</exclude>
                    <exclude>test/*</exclude>
                    <exclude>prod/*</exclude>
                </excludes>
            </resource>
        </resources>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>

            <!-- 不同环境的配置文件选择 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <id>copy-resources</id>
                        <phase>compile</phase>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals>
                        <configuration>
                            <!-- 覆盖原有文件 -->
                            <overwrite>true</overwrite>
                            <outputDirectory>${project.build.outputDirectory}</outputDirectory>
                            <!-- 也可以用下面这样的方式（指定相对url的方式指定outputDirectory） <outputDirectory>target/classes</outputDirectory> -->
                            <!-- 待处理的资源定义 -->
                            <resources>
                                <resource>
                                    <!-- 指定resources插件处理哪个目录下的资源文件 -->
                                    <directory>src/main/resources/${package.environment}</directory>
                                    <filtering>false</filtering>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

为了不把多余的配置打到包里面，在红色部分这里进行了排除（不排除也可以，只有不引用相关的配置就可以）。

打包命令

mvn clean package
mvn clean package -Pdev
mvn clean package -Ptest
mvn clean package -Pprod

执行命令，指定-P参数，启用指定的profile。