我对JVM的所有事物都是新手，并希望启动一个涉及Clojure库作为依赖项的Java项目。我已经看到了有关如何从Java运行Clojure代码的问题，但是当我尝试在之后运行jar文件时mvn package，我得到cannot find symbol了variable Clojure。到目前为止，我的代码如下所示：

package org.example;

import clojure.java.api.Clojure;
import clojure.lang.IFn;

public class App 
{
    public static void main( String[] args )
    {

        IFn plus = Clojure.var("clojure.core", "+");
    }
}

到目前为止，我的pom文件如下所示：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.example</groupId>
  <artifactId>project</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>poi</name>
  <properties>
    <maven.compiler.source>1.6</maven.compiler.source>
    <maven.compiler.target>1.6</maven.compiler.target>
  </properties>
  <url>http://maven.apache.org</url>
  <repositories>
    <repository>
      <id>clojars</id>
      <url>https://repo.clojars.org/</url>
      <snapshots>
        <enabled>true</enabled>
      </snapshots>
      <releases>
        <enabled>true</enabled>
      </releases>
    </repository>
  </repositories>
  <build>
  <plugins>
    <plugin>
      <groupId>com.theoryinpractise</groupId>
      <artifactId>clojure-maven-plugin</artifactId>
      <version>1.8.3</version>
      <extensions>true</extensions>
    </plugin>
  </plugins>
  </build>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.clojure</groupId>
      <artifactId>clojure</artifactId>
      <version>1.10.1</version>
    </dependency>
    <dependency>
      <groupId>clj-python</groupId>
      <artifactId>libpython-clj</artifactId>
      <version>1.45</version>
    </dependency>
  </dependencies>
</project>

在clojure-maven-plugin 似乎要下载的依赖关系（我看着平时下载飞起来的画面），但仍然在调用没有运气Clojure的导入后。

最终，我希望能够libpython-clj从Java内部进行引用。

更新资料

我尝试了Alan Thompson的答案，需要运行lein pom以获得pom.xml文件。然后我需要在项目级别的pom中添加以下内容，以将其添加到mvn -q compile<properties> <maven.compiler.source>1.6</maven.compiler.source> <maven.compiler.target>1.6</maven.compiler.target> </properties>

但是，at mvn -q exec给了我长长的堆栈跟踪，结尾为

[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:3.0.0:java (default-cli) on project demo: An exception occured while executing the Java class. example.Main -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:3.0.0:java (default-cli) on project demo: An exception occured while executing the Java class. example.Main
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured while executing the Java class. example.Main
    at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:311)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
    ... 19 more
Caused by: java.lang.ClassNotFoundException: example.Main
    at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:246)
    at java.base/java.lang.Thread.run(Thread.java:834)
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

更新2

mvn clean install && java -jar target/<whatever-it's called>.jar将以下代码段添加到本<plugins>节中的pom.xml时，似乎运行正常。

  <plugin>
    <artifactId>maven-assembly-plugin</artifactId>
    <configuration>
      <archive>
        <manifest>
          <mainClass>demo.Main</mainClass>
        </manifest>
      </archive>
      <descriptorRefs>
        <descriptorRef>jar-with-dependencies</descriptorRef>
      </descriptorRefs>
    </configuration>
    <executions>
      <execution>
      <id>make-assembly</id>
      <phase>package</phase>
      <goals>
        <goal>single</goal>
      </goals>
      </execution>
    </executions>
  </plugin>