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社区首页 >问答首页 >Maven Properties插件不拾取值

问Maven Properties插件不拾取值
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Stack Overflow用户
提问于 2019-07-05 19:03:21
回答 1查看 915关注 0票数 0

我有一个带有父模块和2个子模块的Maven项目(一个子模块构建一个JAR，一个子模块与依赖于前者的子模块构建战争)。我已经让项目成功地使用WildFly插件来运行应用服务器。我现在正试图更新这个插件，以使用属性文件而不是内联字符串作为WildFly服务器的路径，并通过配置文件拥有不同的环境。下面是我到目前为止所拥有的(很多是测试代码)。

local.properties

代码语言：javascript
复制
local.wildfly.path=/Users/snowyCoderGirl/wildfly-8.2.1.Final

staging.properties

代码语言：javascript
复制
staging.wildfly.path=/Users/snowyCoderGirl/wildfly-8.2.1.Final

production.properties

代码语言：javascript
复制
production.wildfly.path=/Users/snowyCoderGirl/wildfly-8.2.1.Final

pom.xml

代码语言：javascript
复制
<properties>
    <parentDirectory>${project.basedir}</parentDirectory>
    <skip.maven.wildfly>true</skip.maven.wildfly>
</properties>

<profiles>
    <profile>
        <id>local</id>
        <properties>
            <wildfly.path>${local.wildfly.path}</wildfly.path>
        </properties>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
    </profile>
    <profile>
        <id>staging</id>
        <properties>
            <wildfly.path>${staging.wildfly.path}</wildfly.path>
        </properties>
    </profile>
    <profile>
        <id>production</id>
        <properties>
            <wildfly.path>${production.wildfly.path}</wildfly.path>
        </properties>
    </profile>
</profiles>

<build>
    <plugins>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>properties-maven-plugin</artifactId>
            <version>1.0.0</version>
            <executions>
                <execution>
                    <phase>initialize</phase>
                    <goals>
                        <goal>read-project-properties</goal>
                    </goals>
                    <configuration>
                        <files>
                            <file>${parentDirectory}/local.properties</file>
                            <file>${parentDirectory}/staging.properties</file>
                            <file>${parentDirectory}/production.properties</file>
                        </files>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <plugin>
            <groupId>org.wildfly.plugins</groupId>
            <artifactId>wildfly-maven-plugin</artifactId>
            <version>2.0.1.Final</version>
            <configuration>
                <jboss-home>${wildfly.path}</jboss-home>
                <skip>${skip.maven.wildfly}</skip>
            </configuration>
        </plugin>
    </plugins>
</build>

childModule2/pom.xml

代码语言：javascript
复制
<properties>
    <parentDirectory>${project.basedir}/..</parentDirectory>
    <skip.maven.wildfly>false</skip.maven.wildfly>
</properties>

有了上面的内容，当我运行mvn wildfly:run时，它会下载最新的WildFly服务器，并尝试使用它来运行，而不是使用local.wildfly.path。

如果我更改local配置文件，使其直接使用路径(而不是使用local.wildfly.path )，那么它将按预期的方式工作。

我不确定是否没有正确配置属性插件，也不确定父/子模块关系是否在某种程度上干扰了某些事情。我确实注意到了奇怪的是，在IntelliJ中，它允许我像下面的屏幕快照那样自动完成属性文件值，但是当它自动完成时，它会给出一个不能解析符号的错误。

​

​

更新

见评论部分。

我意识到mvn clean package wildfly:run正确地获取了正确的属性值。但是mvn clean wildfly:run和mvn wildfly:run没有获取这些值。

我将以下内容添加到我的父pom.xml中。

代码语言：javascript
复制
<plugin>
    <groupId>com.soebes.maven.plugins</groupId>
    <artifactId>echo-maven-plugin</artifactId>
    <version>0.3.0</version>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>echo</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <echos>
            <echo>Discovered WildFly Path: ${wildfly.path}</echo>
        </echos>
    </configuration>
</plugin>

当我运行mvn wildfly:run时，它似乎得到了正确的值，如下所示。

代码语言：javascript
复制
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] parent                                                         [pom]
[INFO] child-jar                                                      [jar]
[INFO] child-war                                                      [war]
[INFO] 
[INFO] -----------------------< com.mycompany:parent >-----------------------
[INFO] Building parent 1.0-SNAPSHOT                                   [1/3]
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] >>> wildfly-maven-plugin:2.0.1.Final:run (default-cli) > package @ parent >>>
[INFO] 
[INFO] --- properties-maven-plugin:1.0.0:read-project-properties (default) @ parent ---
[INFO] 
[INFO] --- echo-maven-plugin:0.3.0:echo (default) @ parent ---
[INFO] Discovered WildFly Path: /Users/snowyCoderGirl/wildfly-8.2.1.Final
[INFO] 
[INFO] <<< wildfly-maven-plugin:2.0.1.Final:run (default-cli) < package @ parent <<<
[INFO] 
[INFO] 
[INFO] --- wildfly-maven-plugin:2.0.1.Final:run (default-cli) @ parent ---
[INFO] 
[INFO] ---------------------< com.mycompany:child-jar >---------------------
[INFO] Building child-jar 1.0-SNAPSHOT                               [2/3]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] >>> wildfly-maven-plugin:2.0.1.Final:run (default-cli) > package @ child-jar >>>
[INFO] 
[INFO] --- properties-maven-plugin:1.0.0:read-project-properties (default) @ child-jar ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ child-jar ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ child-jar ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ child-jar ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/snowyCoderGirl/IdeaProjects/myproject/child-jar/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ child-jar ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ child-jar ---
[INFO] Surefire report directory: /Users/snowyCoderGirl/IdeaProjects/myproject/child-jar/target/surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
... // Excluded test output here

Results :

Tests run: 40, Failures: 0, Errors: 0, Skipped: 0

[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ child-jar ---
[INFO] 
[INFO] --- echo-maven-plugin:0.3.0:echo (default) @ child-jar ---
[INFO] Discovered WildFly Path: /Users/snowyCoderGirl/wildfly-8.2.1.Final
[INFO] 
[INFO] <<< wildfly-maven-plugin:2.0.1.Final:run (default-cli) < package @ child-jar <<<
[INFO] 
[INFO] 
[INFO] --- wildfly-maven-plugin:2.0.1.Final:run (default-cli) @ child-jar ---
[INFO] 
[INFO] ------------------------< com.mycompany:child-war >------------------------
[INFO] Building child-war 1.0-SNAPSHOT                                     [3/3]
[INFO] --------------------------------[ war ]---------------------------------
[INFO] 
[INFO] >>> wildfly-maven-plugin:2.0.1.Final:run (default-cli) > package @ child-war >>>
[INFO] 
[INFO] --- properties-maven-plugin:1.0.0:read-project-properties (default) @ child-war ---
[INFO] 
[INFO] --- apt-maven-plugin:1.1.3:process (default) @ child-war ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ child-war ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 159 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ child-war ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 747 source files to /Users/snowyCoderGirl/IdeaProjects/myproject/child-war/target/classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ child-war ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /Users/snowyCoderGirl/IdeaProjects/myproject/child-war/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ child-war ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ child-war ---
[INFO] Surefire report directory: /Users/snowyCoderGirl/IdeaProjects/myproject/child-war/target/surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
... // Excluded test output here

Results :

Tests run: 163, Failures: 0, Errors: 0, Skipped: 0

[INFO] 
[INFO] --- maven-war-plugin:2.2:war (default-war) @ child-war ---
[INFO] Packaging webapp
[INFO] Assembling webapp [child-war] in [/Users/snowyCoderGirl/IdeaProjects/myproject/child-war/target/child-war-1.0-SNAPSHOT]
[INFO] Processing war project
[INFO] Copying webapp resources [/Users/snowyCoderGirl/IdeaProjects/myproject/child-war/src/main/webapp]
[INFO] Webapp assembled in [1475 msecs]
[INFO] Building war: /Users/snowyCoderGirl/IdeaProjects/myproject/child-war/target/child-war-1.0-SNAPSHOT.war
[INFO] WEB-INF/web.xml already added, skipping
[INFO] 
[INFO] --- echo-maven-plugin:0.3.0:echo (default) @ child-war ---
[INFO] Discovered WildFly Path: /Users/snowyCoderGirl/wildfly-8.2.1.Final
[INFO] 
[INFO] <<< wildfly-maven-plugin:2.0.1.Final:run (default-cli) < package @ child-war <<<
[INFO] 
[INFO] 
[INFO] --- wildfly-maven-plugin:2.0.1.Final:run (default-cli) @ child-war ---
[INFO] JAVA_HOME : /Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Home/jre
[INFO] JBOSS_HOME: /Users/snowyCoderGirl/IdeaProjects/myproject/child-war/target/wildfly-17.0.0.Final

但是，如最后一行所示，它将使用下载的WildFly 17。相反，当我运行mvn clean package wildfly:run时，将捕获正确的值(如下面所示)(最后一行)。

代码语言：javascript
复制
[INFO] WEB-INF/web.xml already added, skipping
[INFO] 
[INFO] --- echo-maven-plugin:0.3.0:echo (default) @ child-war ---
[INFO] Discovered WildFly Path: /Users/snowyCoderGirl/wildfly-8.2.1.Final
[INFO] 
[INFO] <<< wildfly-maven-plugin:2.0.1.Final:run (default-cli) < package @ child-war <<<
[INFO] 
[INFO] 
[INFO] --- wildfly-maven-plugin:2.0.1.Final:run (default-cli) @ child-war ---
[INFO] JAVA_HOME : /Library/Java/JavaVirtualMachines/jdk1.8.0_211.jdk/Contents/Home/jre
[INFO] JBOSS_HOME: /Users/snowyCoderGirl/wildfly-8.2.1.Final
maven
wildfly
EN

回答 1

Stack Overflow用户

发布于 2019-07-12 20:00:42

在运行mvn wildfly:run时，只执行wildfly-maven-plugin的run目标。它是通过以下配置执行的：

代码语言：javascript
复制
<plugin>
  <groupId>org.wildfly.plugins</groupId>
  <artifactId>wildfly-maven-plugin</artifactId>
  <version>2.0.1.Final</version>
  <configuration>
    <jboss-home>${wildfly.path}</jboss-home>
    <skip>${skip.maven.wildfly}</skip>
  </configuration>
</plugin>

但是，插件需要定义wildfly.path属性。但是在这里，使用mvn wildfly:run命令，没有定义wildfly.path：文件中的属性没有被读取，因为properties-maven-plugin 没有被执行(检查Maven日志，查看这个插件没有被调用)。

因此，由于wildfly.path有一个空值，所以wildfly-maven-plugin的行为就好像没有设置该属性一样，从而下载了Wildfly的最新版本。

要确保设置了wildfly.path属性，应通过运行以下命令确保properties-maven-plugin从文件中读取属性：

代码语言：javascript
复制
mvn initialize wildfly:run

由于properties-maven-plugin被绑定到initialize阶段，所以wildfly.path属性将在initialize阶段期间设置。

这也解释了为什么mvn package wildfly:run工作，因为使用此命令，initialize阶段将作为package阶段之前的所有阶段运行。

请注意，您还可以运行：

代码语言：javascript
复制
mvn wildfly:run -Dwildfly.path=/path/to/wildfly-8.2.0.Final

在这里，命令中提供了wildfly.path，因此不需要从属性文件中读取。

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/56908109

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