Java 使用maven在导出的jar文件中包含jar文件和依赖项

我正在尝试用geoip2为BungeeCord Minecraft编程一个插件。我试图在jar文件中包含依赖项com.maxmind.geoip2和BungeeCord API jar文件，因为我得到了一个java.lang.NoClassDefFoundError:com/maxmind/geoip2/exception/GeoIp2Exception

我试过了，但不管用

在研究更多内容时，我遇到了maven shader，目前我的pom.xml中有：

<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>general</groupId>
<artifactId>CubenexBungee</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

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

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
    <dependency>
        <groupId>com.maxmind.geoip2</groupId>
        <artifactId>geoip2</artifactId>
        <version>2.11.0</version>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.7.0</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-shade-plugin</artifactId>
     <version>3.1.0</version>
     <executions>
        <execution>
           <phase>package</phase>
           <goals>
              <goal>shade</goal>
           </goals>
           <configuration>
              <artifactSet>
                 <excludes>
                    <exclude>org:*</exclude>
                 </excludes>
                 <includes>
                    <include>com.maxmind.geoip2:geoip2</include>
                    <include>Referenced Libraries:BungeeCord.jar</include>
                 </includes>
              </artifactSet>
           </configuration>
        </execution>
     </executions>
  </plugin>
    </plugins>
</build>

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我必须说，我只是刚刚了解了maven，并没有很好地理解它，也没有找到任何我理解的教程。

你试图制作的是很多人称之为“胖罐子”或“优步罐子”的东西 您可以使用maven shade插件来创建它。

---

以下是关于它的更多信息：

为什么Maven组装插件方法不适合您？我不知道。。。。。我所知道的是，我仍然发现了NoClassDefFound错误。请尝试查看maven shade/Shadowjar因为您是maven的新手，您是否更新了pom.xml？当向pom.xml添加新的依赖项时，它应该首先更新库。

<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>general</groupId>
<artifactId>CubenexBungee</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

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

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
    <dependency>
        <groupId>com.maxmind.geoip2</groupId>
        <artifactId>geoip2</artifactId>
        <version>2.11.0</version>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.7.0</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
            </configuration>
        </plugin>
        <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-shade-plugin</artifactId>
     <version>3.1.0</version>
     <executions>
        <execution>
           <phase>package</phase>
           <goals>
              <goal>shade</goal>
           </goals>
           <configuration>
              <artifactSet>
                 <excludes>
                    <exclude>org:*</exclude>
                 </excludes>
                 <includes>
                    <include>com.maxmind.geoip2:geoip2</include>
                    <include>Referenced Libraries:BungeeCord.jar</include>
                 </includes>
              </artifactSet>
           </configuration>
        </execution>
     </executions>
  </plugin>
    </plugins>
</build>

public class App extends Plugin implements Listener{

public static DatabaseReader database;

@Override
public void onEnable(){
    getProxy().getPluginManager().registerListener(this, this);
    try {
        database = new DatabaseReader.Builder(new File(this.getDataFolder().getPath()+"//countrydatabase.csv")).build();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

@EventHandler
public void login(LoginEvent e){
    CountryResponse response;
    try {
        response = database.country(e.getConnection().getAddress().getAddress());
        System.out.println(e.getConnection().getName()+" comes from "+response.getCountry().getName());
    } catch (IOException e1) {
        e1.printStackTrace();
    } catch (GeoIp2Exception e1) {
        e1.printStackTrace();
    }
}

}