当我尝试键入命令来部署我的 servlet 时：
mvn clean package wildfly:deploy
我有错误：
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project wildfly-helloworld: Compilation failure: Compilation failure:
[ERROR] /data/helloworld/src/main/java/org/jboss/as/quickstarts/helloworld/q2Servlet.java:[11,39] package org.apache.commons.codec.binary does not exist
[ERROR] /data/helloworld/src/main/java/org/jboss/as/quickstarts/helloworld/q2Servlet.java:[15,31] package org.apache.commons.dbcp does not exist
[ERROR] /data/helloworld/src/main/java/org/jboss/as/quickstarts/helloworld/q2Servlet.java:[16,31] package org.apache.commons.dbcp does not exist
似乎缺少软件包，我的代码中有：
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.dbcp.ConnectionFactory;
import org.apache.commons.dbcp.DriverManagerConnectionFactory;
import org.apache.commons.dbcp.PoolableConnectionFactory;
import org.apache.commons.dbcp.PoolingDataSource;
这个怎么解决，非常感谢