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Hutool是一个小而全的Java工具类库，通过静态方法封装，降低相关API的学习成本，提高工作效率，使Java拥有函数式语言般的优雅，让Java语言也可以“甜甜的”。

There is a newer version: 5.8.34

package cn.hutool.poi;

import cn.hutool.core.exceptions.DependencyException;
import cn.hutool.core.util.ClassLoaderUtil;

/**
 * POI引入检查器
 *
 * @author looly
 * @since 4.0.10
 */
public class PoiChecker {

	/** 没有引入POI的错误消息 */
	public static final String NO_POI_ERROR_MSG = "You need to add dependency of 'poi-ooxml' to your project, and version >= 4.1.2";

	/**
	 * 检查POI包的引入情况
	 */
	public static void checkPoiImport() {
		try {
			Class.forName("org.apache.poi.ss.usermodel.Workbook", false, ClassLoaderUtil.getClassLoader());
		} catch (ClassNotFoundException | NoClassDefFoundError | NoSuchMethodError e) {
			throw new DependencyException(e, NO_POI_ERROR_MSG);
		}
	}
}