fix 基础类读取单元格内容错误

edu-util/src/main/java/com/keao/edu/util/excel/POIUtil.java

@@ -40,583 +40,593 @@ import com.keao.edu.util.exception.UtilException;
 
 public class POIUtil {
 
-	private final static Logger LOGGER = LoggerFactory.getLogger(POIUtil.class);
-
-	// 能导出的最大数据条数
-	private final static int MAX_DATA_SIZE = 50000;
-
-	private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-
-	/**
-	 * 将数据集dataset导出到fileName文件中(只支持.xlsx格式)
-	 * @param headColumns 导出文件的列名
-	 * @param dataset 数据源
-	 * @return
-	 * @throws IOException 
-	 */
-	public static SXSSFWorkbook exportBigExcel(String[] headColumns, List<Map<String, Object>> dataset) throws IOException {
-		if (headColumns == null) {
-			throw new UtilException("excel列名不能为空");
-		}
-		if (dataset == null) {
-			throw new UtilException("数据集不能为空");
-		}
-		SXSSFWorkbook workbook = new SXSSFWorkbook();
-		CellStyle style = workbook.createCellStyle(); // 获取单元格样式
-		/************** 设置单元格样式 *************/
-		style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
-		style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
-		style.setWrapText(true);
-		Font font = workbook.createFont();
-		font.setColor(HSSFFont.COLOR_NORMAL);
-		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
-		style.setFont(font);
-
-		Sheet sheet = workbook.createSheet(); // 创建sheet
-		// 设置表头
-		// 创建第一行
-		Row row1 = sheet.createRow(0);
-		Cell cell = null;
-		for (int i = 0; i < headColumns.length; i++) {
-			// 创建列
-			cell = row1.createCell(i);
-			// 定义单元格为字符串类型
-			cell.setCellType(HSSFCell.CELL_TYPE_STRING);
-			// 设置单元格的样式
-			cell.setCellStyle(style);
-			// 设置单元格的值
-			cell.setCellValue(headColumns[i]);
-		}
-		Row row = null;
-		// 添加数据
-		Map<String, Object> data = null;
-		for (int i = 1; i <= dataset.size(); i++) {
-			data = dataset.get(i - 1);
-			if (data != null) {
-				row = sheet.createRow(i);
-				int index = 0;
-				for (Entry<String, Object> entry : data.entrySet()) {
-					row.createCell(index).setCellValue(entry.getValue().toString());
-					index++;
-				}
-			}
-		}
-		return workbook;
-	}
-
-	/**
-	 * 将数据集dataset导出到fileName文件中
-	 * @param headColumns 导出文件的列名
-	 * @param dataset 数据源
-	 * @return
-	 * @throws IOException 
-	 */
-	public static HSSFWorkbook exportExcel(String[] headColumns, List<Map<String, Object>> dataset) throws IOException {
-		if (headColumns == null) {
-			throw new UtilException("excel列名不能为空");
-		}
-		if (dataset == null) {
-			throw new UtilException("数据集不能为空");
-		}
-		if (dataset.size() > MAX_DATA_SIZE) {
-			throw new UtilException("数据集太大，不能导出.最大数据集不能超过" + MAX_DATA_SIZE);
-		}
-		HSSFWorkbook workbook = new HSSFWorkbook();
-		HSSFCellStyle style = workbook.createCellStyle(); // 获取单元格样式
-		/************** 设置单元格样式 *************/
-		style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
-		style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
-		style.setWrapText(true);
-		HSSFFont font = workbook.createFont();
-		font.setColor(HSSFFont.COLOR_NORMAL);
-		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
-		style.setFont(font);
-
-		HSSFSheet sheet = workbook.createSheet(); // 创建sheet
-		// 设置表头
-		// 创建第一行
-		HSSFRow row1 = sheet.createRow(0);
-		HSSFCell cell = null;
-		for (int i = 0; i < headColumns.length; i++) {
-			// 创建列
-			cell = row1.createCell(i);
-			// 定义单元格为字符串类型
-			cell.setCellType(HSSFCell.CELL_TYPE_STRING);
-			// 设置单元格的样式
-			cell.setCellStyle(style);
-			// 设置单元格的值
-			cell.setCellValue(headColumns[i]);
-		}
-		HSSFRow row = null;
-		// 添加数据
-		Map<String, Object> data = null;
-		for (int i = 1; i <= dataset.size(); i++) {
-			data = dataset.get(i - 1);
-			if (data != null) {
-				row = sheet.createRow(i);
-				int index = 0;
-				for (Entry<String, Object> entry : data.entrySet()) {
-					row.createCell(index).setCellValue(entry.getValue().toString());
-					index++;
-				}
-			}
-		}
-		return workbook;
-	}
-
-	/**
-	 * 将数据集dataset导出到fileName文件中
-	 * @param headColumns 导出文件的列名
-	 * @param fieldColumns 
-	 * @param dataset 数据源
-	 * @return
-	 * @throws IOException 
-	 * @throws NoSuchMethodException 
-	 * @throws InvocationTargetException 
-	 * @throws IllegalAccessException 
-	 */
-	public static <T> HSSFWorkbook exportExcel(String[] headColumns, String[] fieldColumns, List<T> dataset) throws IOException, IllegalAccessException,
-			InvocationTargetException, NoSuchMethodException {
-		if (headColumns == null) {
-			throw new UtilException("excel列名不能为空");
-		}
-		if (dataset == null) {
-			throw new UtilException("数据集不能为空");
-		}
+    private final static Logger LOGGER = LoggerFactory.getLogger(POIUtil.class);
+
+    // 能导出的最大数据条数
+    private final static int MAX_DATA_SIZE = 50000;
+
+    private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
+    /**
+     * 将数据集dataset导出到fileName文件中(只支持.xlsx格式)
+     *
+     * @param headColumns 导出文件的列名
+     * @param dataset     数据源
+     * @return
+     * @throws IOException
+     */
+    public static SXSSFWorkbook exportBigExcel(String[] headColumns, List<Map<String, Object>> dataset) throws IOException {
+        if (headColumns == null) {
+            throw new UtilException("excel列名不能为空");
+        }
+        if (dataset == null) {
+            throw new UtilException("数据集不能为空");
+        }
+        SXSSFWorkbook workbook = new SXSSFWorkbook();
+        CellStyle style = workbook.createCellStyle(); // 获取单元格样式
+        /************** 设置单元格样式 *************/
+        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
+        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
+        style.setWrapText(true);
+        Font font = workbook.createFont();
+        font.setColor(HSSFFont.COLOR_NORMAL);
+        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
+        style.setFont(font);
+
+        Sheet sheet = workbook.createSheet(); // 创建sheet
+        // 设置表头
+        // 创建第一行
+        Row row1 = sheet.createRow(0);
+        Cell cell = null;
+        for (int i = 0; i < headColumns.length; i++) {
+            // 创建列
+            cell = row1.createCell(i);
+            // 定义单元格为字符串类型
+            cell.setCellType(HSSFCell.CELL_TYPE_STRING);
+            // 设置单元格的样式
+            cell.setCellStyle(style);
+            // 设置单元格的值
+            cell.setCellValue(headColumns[i]);
+        }
+        Row row = null;
+        // 添加数据
+        Map<String, Object> data = null;
+        for (int i = 1; i <= dataset.size(); i++) {
+            data = dataset.get(i - 1);
+            if (data != null) {
+                row = sheet.createRow(i);
+                int index = 0;
+                for (Entry<String, Object> entry : data.entrySet()) {
+                    row.createCell(index).setCellValue(entry.getValue().toString());
+                    index++;
+                }
+            }
+        }
+        return workbook;
+    }
+
+    /**
+     * 将数据集dataset导出到fileName文件中
+     *
+     * @param headColumns 导出文件的列名
+     * @param dataset     数据源
+     * @return
+     * @throws IOException
+     */
+    public static HSSFWorkbook exportExcel(String[] headColumns, List<Map<String, Object>> dataset) throws IOException {
+        if (headColumns == null) {
+            throw new UtilException("excel列名不能为空");
+        }
+        if (dataset == null) {
+            throw new UtilException("数据集不能为空");
+        }
+        if (dataset.size() > MAX_DATA_SIZE) {
+            throw new UtilException("数据集太大，不能导出.最大数据集不能超过" + MAX_DATA_SIZE);
+        }
+        HSSFWorkbook workbook = new HSSFWorkbook();
+        HSSFCellStyle style = workbook.createCellStyle(); // 获取单元格样式
+        /************** 设置单元格样式 *************/
+        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
+        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
+        style.setWrapText(true);
+        HSSFFont font = workbook.createFont();
+        font.setColor(HSSFFont.COLOR_NORMAL);
+        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
+        style.setFont(font);
+
+        HSSFSheet sheet = workbook.createSheet(); // 创建sheet
+        // 设置表头
+        // 创建第一行
+        HSSFRow row1 = sheet.createRow(0);
+        HSSFCell cell = null;
+        for (int i = 0; i < headColumns.length; i++) {
+            // 创建列
+            cell = row1.createCell(i);
+            // 定义单元格为字符串类型
+            cell.setCellType(HSSFCell.CELL_TYPE_STRING);
+            // 设置单元格的样式
+            cell.setCellStyle(style);
+            // 设置单元格的值
+            cell.setCellValue(headColumns[i]);
+        }
+        HSSFRow row = null;
+        // 添加数据
+        Map<String, Object> data = null;
+        for (int i = 1; i <= dataset.size(); i++) {
+            data = dataset.get(i - 1);
+            if (data != null) {
+                row = sheet.createRow(i);
+                int index = 0;
+                for (Entry<String, Object> entry : data.entrySet()) {
+                    row.createCell(index).setCellValue(entry.getValue().toString());
+                    index++;
+                }
+            }
+        }
+        return workbook;
+    }
+
+    /**
+     * 将数据集dataset导出到fileName文件中
+     *
+     * @param headColumns  导出文件的列名
+     * @param fieldColumns
+     * @param dataset      数据源
+     * @return
+     * @throws IOException
+     * @throws NoSuchMethodException
+     * @throws InvocationTargetException
+     * @throws IllegalAccessException
+     */
+    public static <T> HSSFWorkbook exportExcel(String[] headColumns, String[] fieldColumns, List<T> dataset) throws IOException, IllegalAccessException,
+            InvocationTargetException, NoSuchMethodException {
+        if (headColumns == null) {
+            throw new UtilException("excel列名不能为空");
+        }
+        if (dataset == null) {
+            throw new UtilException("数据集不能为空");
+        }
 		/*if (dataset.size() > MAX_DATA_SIZE) {
 			throw new UtilException("数据集太大，不能导出.最大数据集不能超过" + MAX_DATA_SIZE);
 		}*/
-		HSSFWorkbook workbook = new HSSFWorkbook();
-		HSSFCellStyle style = workbook.createCellStyle(); // 获取单元格样式
-		/************** 设置单元格样式 *************/
-		style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
-		style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
-		style.setWrapText(true);
-		HSSFFont font = workbook.createFont();
-		font.setColor(HSSFFont.COLOR_NORMAL);
-		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
-		style.setFont(font);
-
-		HSSFSheet sheet = workbook.createSheet(); // 创建sheet
-		// 设置表头
-		// 创建第一行
-		HSSFRow row1 = sheet.createRow(0);
-		HSSFCell cell = null;
-		for (int i = 0; i < headColumns.length; i++) {
-			// 创建列
-			cell = row1.createCell(i);
-			// 定义单元格为字符串类型
-			cell.setCellType(HSSFCell.CELL_TYPE_STRING);
-			// 设置单元格的样式
-			cell.setCellStyle(style);
-			// 设置单元格的值
-			cell.setCellValue(headColumns[i]);
-		}
-		HSSFRow row = null;
-		// 添加数据
-		T data = null;
-		Object obj = null;
-		for (int i = 1; i <= dataset.size(); i++) {
-			data = dataset.get(i - 1);
-			if (data != null) {
-				row = sheet.createRow(i);
-				for (int j = 0; j < fieldColumns.length; j++) {
-					cell = row.createCell(j);
-					try {
-						obj = PropertyUtils.getNestedProperty(data, fieldColumns[j]);
-						if (obj instanceof Date) {
-							obj = sdf.format(obj);
-						}
-					} catch (NestedNullException e) {
-						LOGGER.warn(e.getMessage());
-						obj = null;
-					}
-					if (obj != null) {
-						cell.setCellValue(obj.toString());
-					} else {
-						cell.setCellValue("");
-					}
-				}
-			}
-		}
-		return workbook;
-	}
-
-	/**
-	 * 将数据集dataset导出到fileName文件中(只支持.xlsx格式)
-	 * @param headColumns 导出文件的列名
-	 * @param fieldColumns 
-	 * @param dataset 数据源
-	 * @return
-	 * @throws IOException 
-	 * @throws NoSuchMethodException 
-	 * @throws InvocationTargetException 
-	 * @throws IllegalAccessException 
-	 */
-	public static <T> SXSSFWorkbook exportBigExcel(String[] headColumns, String[] fieldColumns, List<T> dataset) throws IOException, IllegalAccessException,
-			InvocationTargetException, NoSuchMethodException {
-		if (headColumns == null) {
-			throw new UtilException("excel列名不能为空");
-		}
-		if (dataset == null) {
-			throw new UtilException("数据集不能为空");
-		}
-		SXSSFWorkbook workbook = new SXSSFWorkbook();
-		CellStyle style = workbook.createCellStyle(); // 获取单元格样式
-		/************** 设置单元格样式 *************/
-		style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
-		style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
-		style.setWrapText(true);
-		Font font = workbook.createFont();
-		font.setColor(HSSFFont.COLOR_NORMAL);
-		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
-		style.setFont(font);
-
-		Sheet sheet = workbook.createSheet(); // 创建sheet
-		// 设置表头
-		// 创建第一行
-		Row row1 = sheet.createRow(0);
-		Cell cell = null;
-		for (int i = 0; i < headColumns.length; i++) {
-			// 创建列
-			cell = row1.createCell(i);
-			// 定义单元格为字符串类型
-			cell.setCellType(HSSFCell.CELL_TYPE_STRING);
-			// 设置单元格的样式
-			cell.setCellStyle(style);
-			// 设置单元格的值
-			cell.setCellValue(headColumns[i]);
-		}
-		Row row = null;
-		// 添加数据
-		T data = null;
-		Object obj = null;
-		for (int i = 1; i <= dataset.size(); i++) {
-			data = dataset.get(i - 1);
-			if (data != null) {
-				row = sheet.createRow(i);
-				for (int j = 0; j < fieldColumns.length; j++) {
-					cell = row.createCell(j);
-					try {
-						obj = PropertyUtils.getNestedProperty(data, fieldColumns[j]);
-						if (obj instanceof Date) {
-							obj = sdf.format(obj);
-						}
-					} catch (NestedNullException e) {
-						LOGGER.warn(e.getMessage());
-						obj = null;
-					}
-					if (obj != null) {
-						cell.setCellValue(obj.toString());
-					} else {
-						cell.setCellValue("");
-					}
-				}
-			}
-		}
-		return workbook;
-	}
-
-	/**
-	 * 导入指定的excel文件
-	 * @param excelFile excel文件
-	 * @param startRowNum 从第几行数据开始导入
-	 * @return
-	 * @throws IOException
-	 */
-	public static Map<String, List<Map<String, Object>>> importExcel(File excelFile, int startRowNum) throws IOException {
-		Map<String, List<Map<String, Object>>> result = new HashMap<String, List<Map<String, Object>>>();
-
-		if (!excelFile.exists()) {
-			LOGGER.error("文件" + excelFile.getAbsolutePath() + "不存在");
-			return result;
-		}
-
-		Workbook workbook = null;
-		FileInputStream fis = new FileInputStream(excelFile);
-		int index = excelFile.getName().lastIndexOf('.');
-		if (index <= 0) {
-			fis.close();
-			throw new UtilException("excel文件的扩展名是.xls or .xlsx!");
-		}
-		String ext = excelFile.getName().substring(index).toLowerCase();
-		try {
-			if (".xlsx".equals(ext.toLowerCase())) {
-				// 支持excel2007 xlsx格式
-				workbook = new XSSFWorkbook(fis);
-			} else if (".xls".equals(ext)) {
-				// 支持excel2003以前 xls格式
-				workbook = new HSSFWorkbook(fis);
-			} else {
-				throw new UtilException("excel文件的扩展名是.xls or .xlsx!");
-			}
-		} catch (Exception ex) {
-			LOGGER.error("excel open error.", ex);
-			return result;
-		} finally {
-			if (fis != null) {
-				fis.close();
-			}
-		}
-		int sheetCount = workbook.getNumberOfSheets();
-		Sheet sheet = null;
-		Row row = null;
-		Cell cell = null;
-		int currentRowNum = 0, currentCellNum = 0;
-		// Object fieldValue = null;
-		Iterator<Row> rowIter = null;
-		Iterator<Cell> cellIter = null;
-
-		for (int i = 0; i < sheetCount; i++) {
-			String fieldsName[] = null;
-			// 行号清零
-			currentRowNum = 0;
-			// 顺序取sheet
-			sheet = workbook.getSheetAt(i);
-			List<Map<String, Object>> datas = new ArrayList<Map<String, Object>>();
-			rowIter = sheet.iterator();
-			while (rowIter.hasNext()) {
-				Map<String, Object> obj = null;
-				// 获取当前行
-				row = rowIter.next();
-				if (row != null) {
-					currentRowNum++;
-
-					if (currentRowNum == 1) {// 第一列表示英文名称对应表字段
-						cellIter = row.iterator();
-						// 列号清零
-						currentCellNum = 0;
-						List<String> names = new ArrayList<String>();
-						while (cellIter.hasNext()) {
-							cell = cellIter.next();
-							names.add(cell.getStringCellValue());
-						}
-						fieldsName = names.toArray(new String[names.size()]);
-						continue;
-					}
-
-					// 跳过指定的行
-					if (currentRowNum < startRowNum) {
-						continue;
-					}
-
-					// 实例化对象
-					obj = new HashMap<String, Object>();// clazz.newInstance();
-
-					cellIter = row.iterator();
-					// 列号清零
-					currentCellNum = 0;
-					while (cellIter.hasNext()) {
-						cell = cellIter.next();
-						cell.setCellType(Cell.CELL_TYPE_STRING);
-						String fieldValue = cell.getStringCellValue();
-						obj.put(fieldsName[currentCellNum], fieldValue);
-						currentCellNum++;
-					}
-				}
-				if (obj != null)
-					datas.add(obj);
-
-			}
-			if (!datas.isEmpty())
-				result.put(sheet.getSheetName(), datas);
-		}
-		if (workbook != null) {
-			workbook.close();
-		}
-		return result;
-	}
-
-	/**
-	 * 导入指定的excel文件
-	 * @param inputStream excel文件流
-	 * @param startRowNum 从第几行数据开始导入
-	 * @param extName 文件扩展名，仅支持.xls 或 .xlsx
-	 * @return
-	 * @throws IOException
-	 */
-	public static Map<String, List<Map<String, Object>>> importExcel(InputStream inputStream, int startRowNum, String extName) throws IOException {
-
-		Map<String, List<Map<String, Object>>> result = new HashMap<String, List<Map<String, Object>>>();
-
-		Workbook workbook = null;
-
-		try {
-			if (extName.endsWith(".xlsx")) {
-				// 支持excel2007 xlsx格式
-				workbook = new XSSFWorkbook(inputStream);
-			} else if (extName.endsWith(".xls")) {
-				// 支持excel2003以前 xls格式
-				workbook = new HSSFWorkbook(inputStream);
-			} else {
-				throw new UtilException("excel文件的扩展名是.xls or .xlsx!");
-			}
-		} catch (Exception ex) {
-			LOGGER.error("excel open error.", ex);
-			return result;
-		} finally {
-			if (inputStream != null) {
-				inputStream.close();
-			}
-		}
-
-		int sheetCount = workbook.getNumberOfSheets();
-		Sheet sheet = null;
-		Row row = null;
-		Cell cell = null;
-		int currentRowNum = 0, currentCellNum = 0;
-		// Object fieldValue = null;
-		Iterator<Row> rowIter = null;
-		Iterator<Cell> cellIter = null;
-
-		for (int i = 0; i < sheetCount; i++) {
-			String fieldsName[] = null;
-			// 行号清零
-			currentRowNum = 0;
-			// 顺序取sheet
-			sheet = workbook.getSheetAt(i);
-			List<Map<String, Object>> datas = new ArrayList<Map<String, Object>>();
-			rowIter = sheet.iterator();
-			while (rowIter.hasNext()) {
-				Map<String, Object> obj = null;
-				boolean hasVal = false;
-				// 获取当前行
-				row = rowIter.next();
-				if (row != null) {
-					currentRowNum++;
-
-					if (currentRowNum == 1) {// 第一列表示英文名称对应表字段
-						cellIter = row.iterator();
-						// 列号清零
-						currentCellNum = 0;
-						List<String> names = new ArrayList<String>();
-						while (cellIter.hasNext()) {
-							cell = cellIter.next();
-							names.add(cell.getStringCellValue());
-						}
-						fieldsName = names.toArray(new String[names.size()]);
-						continue;
-					}
-
-					// 跳过指定的行
-					if (currentRowNum < startRowNum) {
-						continue;
-					}
-
-					// 实例化对象
-					obj = new HashMap<String, Object>();// clazz.newInstance();
-
-					cellIter = row.iterator();
-					// 列号清零
-					currentCellNum = 0;
-					while (cellIter.hasNext()) {
-						cell = cellIter.next();
-						cell.setCellType(Cell.CELL_TYPE_STRING);
-						String fieldValue = cell.getStringCellValue();
-						if(StringUtils.isNotBlank(fieldValue)){
-							hasVal  = true;
-						}
-						obj.put(fieldsName[currentCellNum], fieldValue);
-						currentCellNum++;
-					}
-				}
-				if (obj != null && hasVal)
-					datas.add(obj);
-
-			}
-			if (!datas.isEmpty())
-				result.put(sheet.getSheetName(), datas);
-		}
-		if (workbook != null) {
-			workbook.close();
-		}
-		return result;
-	}
-
-	/**
-	 * 创建excel文档
-	 *
-	 * @param getters list中map的key数组集合
-	 * @param headers excel的列名
-	 */
-	public static Workbook createWorkBook(List list, String[] getters, String[] headers, Class clazz) {
-
-		List<Method> methods = getMethodsByStrs(getters, clazz);
-
-		// 创建.xlsx工作簿
-		Workbook wb = new XSSFWorkbook();
-		// 创建第一个sheet（页），并命名
-		Sheet sheet = wb.createSheet("sheet1");
-		// 手动设置列宽.第一个参数表示要为第几列设,第二个参数表示列的宽度,n为列高的像素数.
-
-		for (int i = 0; i < getters.length; i++) {
-			sheet.setColumnWidth((short) i, (short) (35.7 * 200));
-		}
-
-		// 创建第一行
-		Row header = sheet.createRow(0);
-
-		// 创建两种单元格格式
-		CellStyle cellStyle1 = wb.createCellStyle();
-		CellStyle cellStyle2 = wb.createCellStyle();
-
-		// 创建两种字体
-		Font font1 = wb.createFont(); // 标题字体
-		Font font2 = wb.createFont(); // 正文字体
-
-		// 标题加粗
-		font1.setBoldweight(Font.BOLDWEIGHT_BOLD);
-
-		// 设置两种单元格的样式
-		setCellStype(cellStyle1, font1);
-		setCellStype(cellStyle2, font2);
-
-		//设置header
-		for (int i = 0; i < headers.length; i++) {
-			Cell cell = header.createCell(i);
-			cell.setCellValue(headers[i]);
-			cell.setCellStyle(cellStyle1);
-		}
-
-		//设置data
-		int headersNum = 1;
-		for (int i = 0; i < list.size(); i++) {
-			Row row = sheet.createRow(i + headersNum);
-			for (int j = 0; j < methods.size(); j++) {
-				try {
-					Object invoke = methods.get(j).invoke(list.get(i));
-					if (invoke != null) {
-						row.createCell(j).setCellValue(invoke.toString());
-					}
-				} catch (Exception e) {
-					e.printStackTrace();
-				}
-			}
-		}
-		return wb;
-	}
-
-	private static void setCellStype(CellStyle cellStyle, Font font) {
-		font.setFontHeightInPoints((short) 10);
-		font.setColor(IndexedColors.BLACK.getIndex());
-		cellStyle.setFont(font);
-		cellStyle.setBorderLeft(CellStyle.BORDER_THIN);
-		cellStyle.setBorderRight(CellStyle.BORDER_THIN);
-		cellStyle.setBorderTop(CellStyle.BORDER_THIN);
-		cellStyle.setBorderBottom(CellStyle.BORDER_THIN);
-		cellStyle.setAlignment(CellStyle.ALIGN_CENTER);
-	}
-
-	private static List<Method> getMethodsByStrs(String[] getters, Class clazz) {
-		List<Method> list = new ArrayList<>();
-		for (String getter : getters) {
-			try {
-				list.add(clazz.getDeclaredMethod(getter));
-			} catch (NoSuchMethodException e) {
-				e.printStackTrace();
-			}
-		}
-		return list;
-	}
+        HSSFWorkbook workbook = new HSSFWorkbook();
+        HSSFCellStyle style = workbook.createCellStyle(); // 获取单元格样式
+        /************** 设置单元格样式 *************/
+        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
+        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
+        style.setWrapText(true);
+        HSSFFont font = workbook.createFont();
+        font.setColor(HSSFFont.COLOR_NORMAL);
+        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
+        style.setFont(font);
+
+        HSSFSheet sheet = workbook.createSheet(); // 创建sheet
+        // 设置表头
+        // 创建第一行
+        HSSFRow row1 = sheet.createRow(0);
+        HSSFCell cell = null;
+        for (int i = 0; i < headColumns.length; i++) {
+            // 创建列
+            cell = row1.createCell(i);
+            // 定义单元格为字符串类型
+            cell.setCellType(HSSFCell.CELL_TYPE_STRING);
+            // 设置单元格的样式
+            cell.setCellStyle(style);
+            // 设置单元格的值
+            cell.setCellValue(headColumns[i]);
+        }
+        HSSFRow row = null;
+        // 添加数据
+        T data = null;
+        Object obj = null;
+        for (int i = 1; i <= dataset.size(); i++) {
+            data = dataset.get(i - 1);
+            if (data != null) {
+                row = sheet.createRow(i);
+                for (int j = 0; j < fieldColumns.length; j++) {
+                    cell = row.createCell(j);
+                    try {
+                        obj = PropertyUtils.getNestedProperty(data, fieldColumns[j]);
+                        if (obj instanceof Date) {
+                            obj = sdf.format(obj);
+                        }
+                    } catch (NestedNullException e) {
+                        LOGGER.warn(e.getMessage());
+                        obj = null;
+                    }
+                    if (obj != null) {
+                        cell.setCellValue(obj.toString());
+                    } else {
+                        cell.setCellValue("");
+                    }
+                }
+            }
+        }
+        return workbook;
+    }
+
+    /**
+     * 将数据集dataset导出到fileName文件中(只支持.xlsx格式)
+     *
+     * @param headColumns  导出文件的列名
+     * @param fieldColumns
+     * @param dataset      数据源
+     * @return
+     * @throws IOException
+     * @throws NoSuchMethodException
+     * @throws InvocationTargetException
+     * @throws IllegalAccessException
+     */
+    public static <T> SXSSFWorkbook exportBigExcel(String[] headColumns, String[] fieldColumns, List<T> dataset) throws IOException, IllegalAccessException,
+            InvocationTargetException, NoSuchMethodException {
+        if (headColumns == null) {
+            throw new UtilException("excel列名不能为空");
+        }
+        if (dataset == null) {
+            throw new UtilException("数据集不能为空");
+        }
+        SXSSFWorkbook workbook = new SXSSFWorkbook();
+        CellStyle style = workbook.createCellStyle(); // 获取单元格样式
+        /************** 设置单元格样式 *************/
+        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 垂直
+        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 水平
+        style.setWrapText(true);
+        Font font = workbook.createFont();
+        font.setColor(HSSFFont.COLOR_NORMAL);
+        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
+        style.setFont(font);
+
+        Sheet sheet = workbook.createSheet(); // 创建sheet
+        // 设置表头
+        // 创建第一行
+        Row row1 = sheet.createRow(0);
+        Cell cell = null;
+        for (int i = 0; i < headColumns.length; i++) {
+            // 创建列
+            cell = row1.createCell(i);
+            // 定义单元格为字符串类型
+            cell.setCellType(HSSFCell.CELL_TYPE_STRING);
+            // 设置单元格的样式
+            cell.setCellStyle(style);
+            // 设置单元格的值
+            cell.setCellValue(headColumns[i]);
+        }
+        Row row = null;
+        // 添加数据
+        T data = null;
+        Object obj = null;
+        for (int i = 1; i <= dataset.size(); i++) {
+            data = dataset.get(i - 1);
+            if (data != null) {
+                row = sheet.createRow(i);
+                for (int j = 0; j < fieldColumns.length; j++) {
+                    cell = row.createCell(j);
+                    try {
+                        obj = PropertyUtils.getNestedProperty(data, fieldColumns[j]);
+                        if (obj instanceof Date) {
+                            obj = sdf.format(obj);
+                        }
+                    } catch (NestedNullException e) {
+                        LOGGER.warn(e.getMessage());
+                        obj = null;
+                    }
+                    if (obj != null) {
+                        cell.setCellValue(obj.toString());
+                    } else {
+                        cell.setCellValue("");
+                    }
+                }
+            }
+        }
+        return workbook;
+    }
+
+    /**
+     * 导入指定的excel文件
+     *
+     * @param excelFile   excel文件
+     * @param startRowNum 从第几行数据开始导入
+     * @return
+     * @throws IOException
+     */
+    public static Map<String, List<Map<String, Object>>> importExcel(File excelFile, int startRowNum) throws IOException {
+        Map<String, List<Map<String, Object>>> result = new HashMap<String, List<Map<String, Object>>>();
+
+        if (!excelFile.exists()) {
+            LOGGER.error("文件" + excelFile.getAbsolutePath() + "不存在");
+            return result;
+        }
+
+        Workbook workbook = null;
+        FileInputStream fis = new FileInputStream(excelFile);
+        int index = excelFile.getName().lastIndexOf('.');
+        if (index <= 0) {
+            fis.close();
+            throw new UtilException("excel文件的扩展名是.xls or .xlsx!");
+        }
+        String ext = excelFile.getName().substring(index).toLowerCase();
+        try {
+            if (".xlsx".equals(ext.toLowerCase())) {
+                // 支持excel2007 xlsx格式
+                workbook = new XSSFWorkbook(fis);
+            } else if (".xls".equals(ext)) {
+                // 支持excel2003以前 xls格式
+                workbook = new HSSFWorkbook(fis);
+            } else {
+                throw new UtilException("excel文件的扩展名是.xls or .xlsx!");
+            }
+        } catch (Exception ex) {
+            LOGGER.error("excel open error.", ex);
+            return result;
+        } finally {
+            if (fis != null) {
+                fis.close();
+            }
+        }
+        int sheetCount = workbook.getNumberOfSheets();
+        Sheet sheet = null;
+        Row row = null;
+        Cell cell = null;
+        int currentRowNum = 0, currentCellNum = 0;
+        // Object fieldValue = null;
+        Iterator<Row> rowIter = null;
+        Iterator<Cell> cellIter = null;
+
+        for (int i = 0; i < sheetCount; i++) {
+            String fieldsName[] = null;
+            // 行号清零
+            currentRowNum = 0;
+            // 顺序取sheet
+            sheet = workbook.getSheetAt(i);
+            List<Map<String, Object>> datas = new ArrayList<Map<String, Object>>();
+            rowIter = sheet.iterator();
+            while (rowIter.hasNext()) {
+                Map<String, Object> obj = null;
+                // 获取当前行
+                row = rowIter.next();
+                if (row != null) {
+                    currentRowNum++;
+
+                    if (currentRowNum == 1) {// 第一列表示英文名称对应表字段
+                        cellIter = row.iterator();
+                        // 列号清零
+                        currentCellNum = 0;
+                        List<String> names = new ArrayList<String>();
+                        while (cellIter.hasNext()) {
+                            cell = cellIter.next();
+                            names.add(cell.getStringCellValue());
+                        }
+                        fieldsName = names.toArray(new String[names.size()]);
+                        continue;
+                    }
+
+                    // 跳过指定的行
+                    if (currentRowNum < startRowNum) {
+                        continue;
+                    }
+
+                    // 实例化对象
+                    obj = new HashMap<String, Object>();// clazz.newInstance();
+
+                    cellIter = row.iterator();
+                    // 列号清零
+                    currentCellNum = 0;
+                    while (cellIter.hasNext()) {
+                        cell = cellIter.next();
+                        cell.setCellType(Cell.CELL_TYPE_STRING);
+                        String fieldValue = cell.getStringCellValue();
+                        obj.put(fieldsName[currentCellNum], fieldValue);
+                        currentCellNum++;
+                    }
+                }
+                if (obj != null)
+                    datas.add(obj);
+
+            }
+            if (!datas.isEmpty())
+                result.put(sheet.getSheetName(), datas);
+        }
+        if (workbook != null) {
+            workbook.close();
+        }
+        return result;
+    }
+
+    /**
+     * 导入指定的excel文件
+     *
+     * @param inputStream excel文件流
+     * @param startRowNum 从第几行数据开始导入
+     * @param extName     文件扩展名，仅支持.xls 或 .xlsx
+     * @return
+     * @throws IOException
+     */
+    public static Map<String, List<Map<String, Object>>> importExcel(InputStream inputStream, int startRowNum, String extName) throws IOException {
+
+        Map<String, List<Map<String, Object>>> result = new HashMap<String, List<Map<String, Object>>>();
+
+        Workbook workbook = null;
+
+        try {
+            if (extName.endsWith(".xlsx")) {
+                // 支持excel2007 xlsx格式
+                workbook = new XSSFWorkbook(inputStream);
+            } else if (extName.endsWith(".xls")) {
+                // 支持excel2003以前 xls格式
+                workbook = new HSSFWorkbook(inputStream);
+            } else {
+                throw new UtilException("excel文件的扩展名是.xls or .xlsx!");
+            }
+        } catch (Exception ex) {
+            LOGGER.error("excel open error.", ex);
+            return result;
+        } finally {
+            if (inputStream != null) {
+                inputStream.close();
+            }
+        }
+
+        int sheetCount = workbook.getNumberOfSheets();
+        Sheet sheet = null;
+        Row row = null;
+        Cell cell = null;
+        int currentRowNum = 0, currentCellNum = 0;
+        // Object fieldValue = null;
+        Iterator<Row> rowIter = null;
+        Iterator<Cell> cellIter = null;
+
+        for (int i = 0; i < sheetCount; i++) {
+            String fieldsName[] = null;
+            // 行号清零
+            currentRowNum = 0;
+            // 顺序取sheet
+            sheet = workbook.getSheetAt(i);
+            List<Map<String, Object>> datas = new ArrayList<Map<String, Object>>();
+            rowIter = sheet.iterator();
+            while (rowIter.hasNext()) {
+                Map<String, Object> obj = null;
+                boolean hasVal = false;
+                // 获取当前行
+                row = rowIter.next();
+                if (row != null) {
+                    currentRowNum++;
+
+                    if (currentRowNum == 1) {// 第一列表示英文名称对应表字段
+                        cellIter = row.iterator();
+                        // 列号清零
+                        currentCellNum = 0;
+                        List<String> names = new ArrayList<String>();
+                        while (cellIter.hasNext()) {
+                            cell = cellIter.next();
+                            names.add(cell.getStringCellValue());
+                        }
+                        fieldsName = names.toArray(new String[names.size()]);
+                        continue;
+                    }
+
+                    // 跳过指定的行
+                    if (currentRowNum < startRowNum) {
+                        continue;
+                    }
+
+                    // 实例化对象
+                    obj = new HashMap<String, Object>();// clazz.newInstance();
+
+                    cellIter = row.iterator();
+                    // 列号清零
+                    currentCellNum = 0;
+                    while (cellIter.hasNext()) {
+                        cell = cellIter.next();
+                        int columnIndex = cell.getColumnIndex();
+                        cell.setCellType(Cell.CELL_TYPE_STRING);
+                        String fieldValue = "";
+                        if (columnIndex == currentCellNum) {
+                            fieldValue = cell.getStringCellValue();
+                        }
+                        if (StringUtils.isNotBlank(fieldValue)) {
+                            hasVal = true;
+                        }
+                        obj.put(fieldsName[currentCellNum], fieldValue);
+                        currentCellNum++;
+                    }
+                }
+                if (obj != null && hasVal)
+                    datas.add(obj);
+
+            }
+            if (!datas.isEmpty())
+                result.put(sheet.getSheetName(), datas);
+        }
+        if (workbook != null) {
+            workbook.close();
+        }
+        return result;
+    }
+
+    /**
+     * 创建excel文档
+     *
+     * @param getters list中map的key数组集合
+     * @param headers excel的列名
+     */
+    public static Workbook createWorkBook(List list, String[] getters, String[] headers, Class clazz) {
+
+        List<Method> methods = getMethodsByStrs(getters, clazz);
+
+        // 创建.xlsx工作簿
+        Workbook wb = new XSSFWorkbook();
+        // 创建第一个sheet（页），并命名
+        Sheet sheet = wb.createSheet("sheet1");
+        // 手动设置列宽.第一个参数表示要为第几列设,第二个参数表示列的宽度,n为列高的像素数.
+
+        for (int i = 0; i < getters.length; i++) {
+            sheet.setColumnWidth((short) i, (short) (35.7 * 200));
+        }
+
+        // 创建第一行
+        Row header = sheet.createRow(0);
+
+        // 创建两种单元格格式
+        CellStyle cellStyle1 = wb.createCellStyle();
+        CellStyle cellStyle2 = wb.createCellStyle();
+
+        // 创建两种字体
+        Font font1 = wb.createFont(); // 标题字体
+        Font font2 = wb.createFont(); // 正文字体
+
+        // 标题加粗
+        font1.setBoldweight(Font.BOLDWEIGHT_BOLD);
+
+        // 设置两种单元格的样式
+        setCellStype(cellStyle1, font1);
+        setCellStype(cellStyle2, font2);
+
+        //设置header
+        for (int i = 0; i < headers.length; i++) {
+            Cell cell = header.createCell(i);
+            cell.setCellValue(headers[i]);
+            cell.setCellStyle(cellStyle1);
+        }
+
+        //设置data
+        int headersNum = 1;
+        for (int i = 0; i < list.size(); i++) {
+            Row row = sheet.createRow(i + headersNum);
+            for (int j = 0; j < methods.size(); j++) {
+                try {
+                    Object invoke = methods.get(j).invoke(list.get(i));
+                    if (invoke != null) {
+                        row.createCell(j).setCellValue(invoke.toString());
+                    }
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        return wb;
+    }
+
+    private static void setCellStype(CellStyle cellStyle, Font font) {
+        font.setFontHeightInPoints((short) 10);
+        font.setColor(IndexedColors.BLACK.getIndex());
+        cellStyle.setFont(font);
+        cellStyle.setBorderLeft(CellStyle.BORDER_THIN);
+        cellStyle.setBorderRight(CellStyle.BORDER_THIN);
+        cellStyle.setBorderTop(CellStyle.BORDER_THIN);
+        cellStyle.setBorderBottom(CellStyle.BORDER_THIN);
+        cellStyle.setAlignment(CellStyle.ALIGN_CENTER);
+    }
+
+    private static List<Method> getMethodsByStrs(String[] getters, Class clazz) {
+        List<Method> list = new ArrayList<>();
+        for (String getter : getters) {
+            try {
+                list.add(clazz.getDeclaredMethod(getter));
+            } catch (NoSuchMethodException e) {
+                e.printStackTrace();
+            }
+        }
+        return list;
+    }
 
 }