maven - 使用属性 maven 插件迭代器插件和资源插件时跳过不存在的资源目录问题

Question

我试图一次使用三个 maven 插件，但在执行时出错。我的目标是读取将放置在 src 文件夹下的每个环境属性，如 application-sit.properties .. 等。
pom.xml

<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>com.test.config</groupId>
    <artifactId>config-poc</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <name>config-poc</name>

    <build>
        <directory>${project.basedir}/target</directory>
        <outputDirectory>${project.build.directory}/classes</outputDirectory>
        <resources>
            <resource>
                <directory>${project.basedir}/config/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>**/*.*</include>
                </includes>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>com.soebes.maven.plugins</groupId>
                <artifactId>iterator-maven-plugin</artifactId>
                <version>0.5.1</version>
                <executions>
                    <execution>
                        <id>moving property file</id>
                        <phase>initialize</phase>
                        <goals>
                            <goal>iterator</goal>
                        </goals>
                        <configuration>
                            <items>
                                <item>sit</item>
                                <item>uat</item>
                            </items>
                            <pluginExecutors>
                                <pluginExecutor>
                                    <plugin>
                                        <groupId>org.codehaus.mojo</groupId>
                                        <artifactId>properties-maven-plugin</artifactId>
                                        <version>1.0.0</version>
                                    </plugin>
                                    <goal>read-project-properties</goal>
                                    <configuration>
                                        <files>
                                            <file>${project.basedir}/config/resources/environments/common.properties</file>
                                            <file>${project.basedir}/config/resources/environments/@item@.properties</file>
                                        </files>
                                    </configuration>
                                </pluginExecutor>
                                <pluginExecutor>
                                    <plugin>
                                        <groupId>org.apache.maven.plugins</groupId>
                                        <artifactId>maven-resources-plugin</artifactId>
                                        <version>2.7</version>
                                    </plugin>
                                    <goal>copy-resources</goal>
                                    <configuration>
                                        <outputDirectory>${project.build.outputDirectory}/config/${item}/</outputDirectory>
                                        <resources>
                                            <resource>
                                                <directory>${project.build.outputDirectory}</directory>
                                                <filtering>false</filtering>
                                                <include>*.properties</include>
                                            </resource>
                                        </resources>
                                    </configuration>
                                </pluginExecutor>
                            </pluginExecutors>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

执行时出现以下错误看起来像读取属性插件未在目标文件夹中生成 application.properties。下面是我的项目的快照。

[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------------< com.test.config:config-poc >---------------------
[INFO] Building config-poc 0.0.1-SNAPSHOT
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ config-poc ---
[INFO] 
[INFO] --- iterator-maven-plugin:0.5.1:iterator (moving property file) @ config-poc ---
[INFO] ------ (sit) org.codehaus.mojo:properties-maven-plugin:1.0.0:read-project-properties
[INFO] ------ (sit) org.apache.maven.plugins:maven-resources-plugin:2.7:copy-resources
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\eclipse\F\eclipse_workspace3\config-poc\target\classes
[INFO] ------ (uat) org.codehaus.mojo:properties-maven-plugin:1.0.0:read-project-properties
[INFO] ------ (uat) org.apache.maven.plugins:maven-resources-plugin:2.7:copy-resources
[WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\eclipse\F\eclipse_workspace3\config-poc\target\classes
[INFO] 
[INFO] --- maven-install-plugin:2.4:install (default-install) @ config-poc ---
[INFO] Installing C:\eclipse\F\eclipse_workspace3\config-poc\pom.xml to C:\Users\Abhishek\.m2\repository\com\test\config\config-poc\0.0.1-SNAPSHOT\config-poc-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.798 s
[INFO] Finished at: 2020-08-29T16:29:36+05:30
[INFO] ------------------------------------------------------------------------

Answer 1

下面的 pluginExecutor 结构将解决您的问题。

<pluginExecutor>
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <version>3.2.0</version>
</plugin>
<goal>copy-resources</goal>
<configuration>
    <outputDirectory>${project.build.outputDirectory}/${item}/</outputDirectory>
    <resources>
        <resource>
            <directory>${project.basedir}/config/resources/templates</directory>
            <filtering>false</filtering>
            <include>application.properties</include>
        </resource>
    </resources>
</configuration>