如何在Maven中指定额外的源/资源文件夹，以便IDE知道它们？

Question

我是Maven初学者，经过反复试验，我设法为WAR发行版相对于开发WAR指定了不同的属性文件（我尝试用我能想到的最简单的方法来做，但是可以建议任何更简单的解决方案）。

因此，在开发过程中，my
database.properties和log4j.properties来自src/main/resources，同时生成它们来自的发布WAR
src/main/resources/release。

到目前为止，一切都很好。

现在的问题是：因为我与Eclipse的工作，有没有办法说，里面的POM，那src/main/resources/release是一个源文件夹也使Eclipse将列出它在Project
Explorer中的其他源文件夹下，即使其他开发商导入项目到他的IDE中（即不手动将该文件夹添加为源文件夹）？

这是我的POM的相关部分：

<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>
...
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <war-name>/</war-name>
</properties>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
                ...
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            ...
        </plugin>

        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            ...
        </plugin>
    </plugins>
</build>

<dependencies> ... </dependencies>

<profiles>
    <profile>
        <id>release</id>
        <properties>
            <war-name>ROOT</war-name>
        </properties>

        <build>
            <resources><!-- Replace Maven default resources directory (this could probably be achieved with a property)-->
                <resource>
                    <filtering>true</filtering>
                    <directory>${basedir}/src/main/resources/release</directory>
                    <includes>
                        <include>*</include>
                    </includes>
                </resource>
            </resources>
        </build>
    </profile>
</profiles>

Answer 1

这是我的方法。

基本上，我声明了要在默认配置下在Eclipse中看到的所有资源文件夹（由于在配置文件处于活动状态时，将 节点附加到最终POM而不是（我认为）替换现有的）；然后我告诉Maven使用属性从哪个文件夹复制资源，属性的值由活动配置文件驱动。

任何评论，当然，非常感谢！

<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>...</groupId>
    <artifactId>...</artifactId>
    <version>...</version>
    <packaging>war</packaging>
    <name>...</name>

    <!-- My prerequisite was that when working in Eclipse no extra steps 
         should be required to make the IDE use the right configuration than
         Configure -> Convert to Maven Project, so I didn't like having 
         default settings in a profile that must be enabled in Eclipse project
         configuration -->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <war-name>/</war-name>

        <!-- These solve the problem: AFAICT, each <resource /> is added to the final POM,
             so declaring a resources folder in a profile didn't exclude other resources 
             folders declared in the default (i.e. without profiles active) configuration.
             So, the solution is to change what Maven brings in from each folder depending
             on the profile currently active. What follows is the default, no-profile
             active configuration. -->
        <res.devel.includes>**/*</res.devel.includes>
        <res.devel.excludes></res.devel.excludes>

        <res.local.includes></res.local.includes>
        <res.local.excludes>*</res.local.excludes>

        <res.release.includes></res.release.includes>
        <res.release.excludes>*</res.release.excludes>
    </properties>

    <build>
        <resources><!-- Here I declare all the resources folders, so that they will all be shown in Eclipse. Property values drive what is included and excluded. -->
            <resource><!-- This is the default Maven main resource directory -->
                <directory>${basedir}/src/main/resources-local</directory>
                <filtering>true</filtering>
                <includes>
                    <include>${res.devel.includes}</include>
                </includes>

                <excludes>
                    <exclude>${res.devel.excludes}</exclude>
                </excludes>
            </resource>

            <resource><!-- This is the resources directory for when the WAR is deployed on a local standalone Tomcan installation (useful for web pages editing) -->
                <directory>${basedir}/src/main/resources-local</directory>
                <filtering>true</filtering>
                <includes>
                    <include>${res.local.includes}</include>
                </includes>

                <excludes>
                    <exclude>${res.local.excludes}</exclude>
                </excludes>
            </resource>

            <resource><!-- This is the resource directory for when the WAR will be deployed -->
                <directory>${basedir}/src/main/resources-release</directory>
                <filtering>true</filtering>
                <includes>
                    <include>${res.release.includes}</include>
                </includes>

                <excludes>
                    <exclude>${res.release.excludes}</exclude>
                </excludes>
            </resource>
        </resources>

        <plugins>
            <!-- Plugins configurations -->
        </plugins>
    </build>

    <dependencies>
        <!-- Dependencies declarations -->
    </dependencies>

    <profiles><!-- Here are the profiles. When working in Eclipse no profile is active, so the resources will be taken only from src/main/resources (as per default properties values). -->
        <profile>
            <id>local</id><!-- This is for when the WAR is deployed on a local standalone Tomcat instance (i.e. outside of Eclipse) -->
            <properties>
                <war-name>ROOT</war-name>

                <!-- The resources will be taken only from src/main/resources-local -->
                <res.devel.includes></res.devel.includes>
                <res.devel.excludes>*</res.devel.excludes>

                <res.local.includes>*</res.local.includes>
                <res.local.excludes></res.local.excludes>

                <res.release.includes></res.release.includes>
                <res.release.excludes>*</res.release.excludes>
            </properties>
        </profile>

        <profile>
            <id>release</id><!-- This is for when the WAR is deployed on the production server -->
            <properties>
                <war-name>ROOT</war-name>

                <!-- The resources will be taken only from src/main/resources-release -->
                <res.devel.includes></res.devel.includes>
                <res.devel.excludes>*</res.devel.excludes>

                <res.local.includes></res.local.includes>
                <res.local.excludes>*</res.local.excludes>

                <res.release.includes>*</res.release.includes>
                <res.release.excludes></res.release.excludes>
            </properties>
        </profile>
    </profiles>
</project>