log4j无法读取聚合器项目

Question

我的项目结构如下

rootFolder
    -> moduleA
        -> src
            -> main
                 -> java
                     -> App.java
                 -> resources
                     -> log4j.properties
        -> pom.xml

    -> moduleB
        -> src
            -> main
                 -> java
                 -> resources
        -> pom.xml

    -> pom.xml

我的rootFolder / pom.xml看起来很喜欢这个

<?xml version="1.0" encoding="UTF-8"?>
<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>mygroupid</groupId>
    <artifactId>parent</artifactId>
    <version>0.1-SNAPSHOT</version>
    <packaging>pom</packaging>


    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <modules>
        <module>moduleA</module>
        <module>moduleB</module>
    </modules>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>

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

    <dependencies>
         <!-- ommited -->
    </dependencies>
</project>

我的rootFolder / moduleA / pom.xml看起来很喜欢这个

<?xml version="1.0" encoding="UTF-8"?>
<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>

  <parent>
    <groupId>mygroupid</groupId>
    <artifactId>parent</artifactId>
    <version>0.1-SNAPSHOT</version>
</parent>

  <artifactId>moduleA</artifactId>
  <packaging>jar</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
  </properties>

  <dependencies>
    <!-- ommited -->
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <configuration>
          <mainClass>App</mainClass>
        </configuration>
      </plugin>


      <plugin>
      <artifactId>maven-resources-plugin</artifactId>
      <version>2.6</version>
      <executions>
      <execution>
        <id>copy-resources</id>
        <!-- here the phase you need -->
        <phase>validate</phase>
        <goals>
          <goal>copy-resources</goal>
        </goals>
        <configuration>
          <outputDirectory>${basedir}/target/service/conf</outputDirectory>
          <resources>
            <resource>
              <directory>conf/</directory>
              <filtering>true</filtering>
            </resource>
          </resources>
        </configuration>
      </execution>
      </executions>
      </plugin>
    </plugins>
  </build>


</project>

我的root / moduleB / pom.xml看起来像这样

<?xml version="1.0" encoding="UTF-8"?>
<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>

  <parent>
    <groupId>mygroupid</groupId>
    <artifactId>parent</artifactId>
    <version>0.1-SNAPSHOT</version>
</parent>

  <artifactId>moduleB</artifactId>
  <packaging>jar</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
  </properties>

  <dependencies>
    <!-- ommited -->
  </dependencies>

  <build>

      <plugin>
      <artifactId>maven-resources-plugin</artifactId>
      <version>2.6</version>
      <executions>
      <execution>
        <id>copy-resources</id>
        <!-- here the phase you need -->
        <phase>validate</phase>
        <goals>
          <goal>copy-resources</goal>
        </goals>
        <configuration>
          <outputDirectory>${basedir}/target/service/conf</outputDirectory>
          <resources>
            <resource>
              <directory>conf/</directory>
              <filtering>true</filtering>
            </resource>
          </resources>
        </configuration>
      </execution>
      </executions>
      </plugin>
    </plugins>
  </build>


</project>

我的rootFolder / moduleA / src / main / resources / log4j.properties看起来像这样

# Root logger option
log4j.rootLogger=DEBUG, file

# Redirect log messages to console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

# Redirect log messages to a log file, support file rolling.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=/Users/cyyv/Text/webapp.txt
log4j.appender.file.MaxFileSize=5MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

我的App.java看起来像这样：

import org.joda.time.LocalDate;
import lombok.extern.log4j.Log4j;
import org.apache.log4j.Logger;

@Log4j
public class App {

  static Logger logger = Logger.getLogger(App.class);



  public static void main(String[] args) {
    System.out.println(getLocalCurrentDate());
  }

  private static String getLocalCurrentDate() {

    if (logger.isDebugEnabled()) {
      logger.debug("getLocalCurrentDate() is executed!");
    }

    LocalDate date = new LocalDate();
    return date.toString();

  }

}

不幸的是，这不起作用，并且没有任何内容写入日志文件。 但是，当我将 rootFolder / pom.xml 更改为

时

<?xml version="1.0" encoding="UTF-8"?>
<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>mygroupid</groupId>
    <artifactId>parent</artifactId>
    <version>0.1-SNAPSHOT</version>
    <!-- <packaging>pom</packaging> -->  COMMENTED THIS

    ...


</project>

并评论pom线，它开始工作。

但是，由于以下错误，我无法真正使用mvn包

[ERROR]     'packaging' with value 'jar' is invalid. Aggregator projects require 'pom' as packaging. @ line 4, column 102

我希望以一种loggin和mvn包的方式运行pom。