POI 导出Excel工具类

maven依赖

org.apache.poi
poi
RELEASE


org.apache.servicemix.bundles
org.apache.servicemix.bundles.poi
3.9_2


org.apache.poi
poi-ooxml
RELEASE

实现类

package com.fenta.util;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.util.CellRangeAddress;


public class ExcelUtil {


	/**
	 * 实体类导出excel
	 * 
	 * @param title
	 *            标题，sheet名称 不能为空
	 * @param headers
	 *            列名 String[] 根据实体定义的字段顺序
	 * @param dataset
	 *            实体类集合
	 * @param out
	 *            输出流
	 */
	@SuppressWarnings({ "resource", "unchecked", "rawtypes" })
	public static void exportEntityExcel(String title, String[] headers, Collection