排除依赖关系jar并减少构建时间maven

Question

我创建了pom.xml来构建2个jar。 1将从hadoop下载数据，因此需要Hive依赖jars（Java2Hive.jar）anther jar Chat.jar不需要任何这些依赖。它可能需要很少的依赖，如apache commons和apache utils。如何排除和选择依赖jar？

由于它添加了所有依赖关系jar，因此两个jar的大小都是7MB，构建时间总是6min。如何提高性能并缩小尺寸？

这是我的POM.xml

<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>HIVE</groupId>
  <artifactId>Chat</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <repositories>
        <repository>
            <id>cloudera</id>
            <url>https://repository.cloudera.com/artifactory/cloudera-repos/</url>
        </repository>
    </repositories>

    <dependencies>

    <dependency>
            <groupId>jdk.tools</groupId>
            <artifactId>jdk.tools</artifactId>
            <version>1.8.0_92</version>
            <scope>system</scope>
            <systemPath>C:\Program Files\Java\jdk1.8.0_92\lib\tools.jar</systemPath>
    </dependency>

    <dependency>
    <groupId>org.apache.hive</groupId>
    <artifactId>hive-jdbc</artifactId>
    <version>0.13.1-cdh5.3.1</version>
</dependency>
<dependency>
    <groupId>org.apache.thrift</groupId>
    <artifactId>libthrift</artifactId>
    <version>0.9.0</version>
</dependency>
<dependency>
    <groupId>org.apache.thrift</groupId>
    <artifactId>libfb303</artifactId>
    <version>0.9.0</version>
</dependency>
<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-core</artifactId>
    <version>2.5.0-mr1-cdh5.3.1</version>
</dependency>

<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-common</artifactId>
    <version>2.5.0-cdh5.3.1</version>
</dependency>
<dependency>
    <groupId>org.apache.hive</groupId>
    <artifactId>hive-exec</artifactId>
    <version>0.13.1-cdh5.3.1</version>
</dependency>
<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-hdfs</artifactId>
    <version>2.5.0-cdh5.3.1</version>
</dependency>


    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                </configuration>
            </plugin>

    <plugin>
      <!-- Build an executable JAR -->
      <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <archive>
          <manifest>
            <addClasspath>true</addClasspath>
            <classpathPrefix>lib/</classpathPrefix>
            <mainClass>com.HiveJdbcConnection</mainClass>
          </manifest>
           </archive>
            <descriptorRefs>
                  <descriptorRef>jar-with-dependencies</descriptorRef>
               </descriptorRefs>
                <appendAssemblyId>false</appendAssemblyId>
                <finalName>Java2Hive</finalName>
            </configuration>
            <executions>
               <execution>
                  <id>make-my-jar-with-dependencies</id>
                  <phase>package</phase>
                  <goals>
                     <goal>single</goal>
                  </goals>
               </execution>

               <execution>
                    <id>build-b</id>
                    <configuration>
                        <archive>
                            <manifest>
                                <mainClass>com.ChatLog_Phase2</mainClass>
                            </manifest>
                        </archive>
                        <descriptorRefs>
                            <descriptorRef>jar-with-dependencies</descriptorRef>
                        </descriptorRefs>
                        <finalName>Chat</finalName>
                    </configuration>
                    <phase>package</phase>
                    <goals>
                        <goal>assembly</goal>
                    </goals>
                </execution>


            </executions>
    </plugin>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.6.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
  </plugins>
</build>


</project>