【Spring・DBCP2】（内容変更）BasicDataSourceが@Autowiredでインスタンス化できていない

前提・実現したいこと

Spring Securityで、テーブルの登録内容を利用してログインできるようにしたい。

発生している問題・エラーメッセージ

Tomcatの起動時に下記のエラーが発生しています。
なお、IDEはeclipseで、Tomcatはeclipseに登録したものを起動しています。

※（6/29追記）はじめは、MyBatis-Springの@MapperScanが正常動作していないと考え投稿した質問だったのですが、それ以前の、BasicDataSourceを@Autowiredでインスタンス化する段階でエラーになっていることがわかりました。
そのため、内容を全面的に変更させていただきます。

なお、エラーメッセージを全て掲載しようとしたところ文字数オーバーとなってしまったため、スタックトレースを一部省略させていただきました。ご容赦ください。

ERROR: org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'webSecurityConfig': Unsatisfied dependency expressed through field 'dataSource'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.apache.commons.dbcp2.BasicDataSource' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
	... 40 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.apache.commons.dbcp2.BasicDataSource' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1654)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1213)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1167)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
	... 45 more

該当のソースコード

下記のような構成です。

DataSourceの設定クラス：test.spring.config.DataSourceConfig
Spring Securityの設定クラス：test.spring.config.WebSecurityConfig
社員情報テーブル

####DataSourceConfig

package spring.test.config;

import org.apache.commons.dbcp2.BasicDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.mybatis.spring.annotation.MapperScan;

@Configuration
@MapperScan("org.step.kintai.mapper")
@EnableTransactionManagement

public class DataSourceConfig {
  @Bean
  public BasicDataSource dataSource() {
    BasicDataSource basicDataSource = new BasicDataSource();
    basicDataSource.setDriverClassName("com.mysql.cj.jdbc.Driver");
    basicDataSource.setUrl(
        "jdbc:mysql://localhost:3306/holiday?characterEncoding=UTF-8&serverTimezone=JST&useSSL=false");
    basicDataSource.setUsername("admin01");
    basicDataSource.setPassword("Step2911");
    return basicDataSource;
  }
}

####WebSecurityConfig

package spring.test.config;

import org.apache.commons.dbcp2.BasicDataSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
import org.springframework.security.web.util.matcher.RequestMatcher;

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

  @Bean
  public PasswordEncoder passwordEncoder() {
    return new BCryptPasswordEncoder(10);
  }

  @Bean
  public RequestMatcher logoutRequestMatcher() {
    return new AntPathRequestMatcher("/logout");
  }

  @Autowired
  private BasicDataSource dataSource;

  @Autowired
  public void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.jdbcAuthentication().dataSource(dataSource)
        .authoritiesByUsernameQuery(
            "select mail_address as username, 'USER' as authority from personnel "
                + " where personnel_id = ?")
        .usersByUsernameQuery(
            "select mail_address as username, password, true as enabled from personnel "
                + " where personnel_id = ?")
        .passwordEncoder(passwordEncoder());
  }

  @Override
  protected void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests().antMatchers("/login", "/logout").permitAll().anyRequest()
        .authenticated();
    http.formLogin().loginPage("/login");
    http.logout().logoutRequestMatcher(logoutRequestMatcher()).invalidateHttpSession(true).and()
        .csrf();
  }
}