解决方法1：

在maven中添加如下配置，让每次打包后的jar包包含其他依赖：

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<repositories>
       <repository>
           <id>spring-releases</id>
           <url>https://repo.spring.io/libs-release</url>
       </repository>
   </repositories>
   <pluginRepositories>
       <pluginRepository>
           <id>spring-releases</id>
           <url>https://repo.spring.io/libs-release</url>
       </pluginRepository>
   </pluginRepositories>

   <build>
       <plugins>
           <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-compiler-plugin</artifactId>
               <version>3.8.1</version>
               <configuration>
                   <source>1.8</source>
                   <target>1.8</target>
                   <encoding>UTF-8</encoding>
               </configuration>
           </plugin>
               <plugin>
                   <groupId>org.springframework.boot</groupId>
                   <artifactId>spring-boot-maven-plugin</artifactId>
                   <version>2.6.0</version>
                   <configuration>
                       <mainClass>com.example.remotedebug.RemoteDebugApplication</mainClass>
                       <layout>JAR</layout>
                   </configuration>
                   <executions>
                       <execution>
                           <goals>
                               <goal>repackage</goal>
                           </goals>
                       </execution>
                   </executions>
               </plugin>
       </plugins>
   </build>


解决方法2：

先把相关依赖的包上传到服务器 
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<build>
      <finalName>DebugDemo</finalName>
      <plugins>
          <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-jar-plugin</artifactId>
              <version>3.2.2</version>
              <configuration>
                  <archive>
                      <manifestEntries>
                          <Build-Time>${maven.build.timestamp}</Build-Time>
                      </manifestEntries>
                      <manifest>
                          <addClasspath>true</addClasspath>
                          <classpathPrefix>lib/</classpathPrefix>
                          <mainClass>com.</mainClass>
                      </manifest>
                  </archive>
              </configuration>
          </plugin>
      </plugins>
  </build>