如何使用maven shade插件向jar添加资源

Question

<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.fde</groupId>
    <artifactId>Listener</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>Listener</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <hibernate.version>3.6.10.Final</hibernate.version>
        <java.version>1.6</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <!-- Hibernate dependencies START -->
        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.0</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-ehcache</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.12.1.GA</version>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.9</version>
        </dependency>
        <!-- Hibernate dependencies END -->
    </dependencies>
    <build>
        <sourceDirectory>src/main/java</sourceDirectory>
        <resources>
            <resource>
                <directory>resources</directory>
            </resource>
        </resources>
        <testSourceDirectory>src/test/java</testSourceDirectory>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.2</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>com.fde.ListenerServer</mainClass>
                                </transformer>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.IncludeResourceTransformer">
                                    <resource>resources</resource>
                                    <file>server.properties</file>
                                </transformer>
                            </transformers>
                            <artifactSet>
                                <excludes>

                                    <exclude>junit:junit</exclude>

                                </excludes>
                            </artifactSet>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

        </plugins>
    </build>
</project>

正确地创建了Jar，并且在清单中提到了main类。我有以下几个问题：

>

目标文件夹包含classes文件夹，而classes文件夹中有类文件。罐子里也有它们，所以为什么需要它们。我的目标是拥有一个只包含所有依赖项的可执行jar。

这些资源根本没有被添加到jar中。我已经根据网上看到的说明添加了变压器，但是没有用！！！

我完全没有关于如何包含资源的线索。感谢任何帮助！！

编辑：：：：

这是我用于maven-assembly-plugin的标记：

 <plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <executions>
      <execution>
        <phase>package</phase>
        <goals>
          <goal>attached</goal>
        </goals>
      </execution>
    </executions>
    <configuration>
    <archive>
            <manifest>
              <mainClass>com.fde.ListenerServer</mainClass>
            </manifest>
          </archive>
      <descriptorRefs>
        <descriptorRef>jar-with-dependencies</descriptorRef>
      </descriptorRefs>
    </configuration>
  </plugin>

另外，我也不明白为什么从我的代码中引用的jar文件会包含在jar中以及META-INF文件夹中。

Answer 1

问题不在您的maven-shade-plugin的配置中，而是您显式地将资源目录设置为错误的路径：

    <!-- wrong -->
    <resource>    
      <directory>resources</directory>
    </resource>

正如 元素的doc所说：“描述存储资源的目录。路径是相对于POM的。”

因此，如果您遵循默认的maven项目结构，您必须这样设置：

    <!-- correct -->
    <directory>src/main/resources</directory>