maven多環境打包

使用的maven-resources-plugin來配置不同的環境，使用不同的資源來達到多環境打包的目的。

在src/main/resources目錄下面，按照環境名稱建立配置文件目錄：

文件中引入maven-resources-plugin插件和相關的標籤，引入pom文件部分說明

    <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>

            <!-- 不同環境的配置文件選擇 -->
            <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>
                            <!-- 覆蓋原有文件 -->
                            <overwrite>true</overwrite>
                            <outputDirectory>${project.build.outputDirectory}</outputDirectory>
                            <!-- 也可以用下面這樣的方式（指定相對url的方式指定outputDirectory） <outputDirectory>target/classes</outputDirectory> -->
                            <!-- 待處理的資源定義 -->
                            <resources>
                                <resource>
                                    <!-- 指定resources插件處理哪個目錄下的資源文件 -->
                                    <directory>src/main/resources/${package.environment}</directory>
                                    <filtering>false</filtering>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

爲了不把多餘的配置打到包裏面，在紅色部分這裏進行了排除（不排除也可以，只有不引用相關的配置就可以）。

打包命令

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

執行命令，指定-P參數，啓用指定的profile。