[解析excel]解析03版xls和07版以上的xlsx

調用：

<span style="white-space:pre">			</span>String exfileName="";
			if(filePath.indexOf(".")>-1){
				exfileName=filePath.substring(filePath.lastIndexOf(".")).toUpperCase();
			}
			File file = new File(filePath);
			JSONObject json = new JSONObject();
			if(exfileName != null && exfileName.equals(".XLS")){
				json = getData_2003(file, 1);
			}else if(exfileName != null && exfileName.equals(".XLSX")){
				json = getData_2007(file, 1);
			}else{
	    	   <span style="white-space:pre">		</span>obj.put("success", false);
	    	   <span style="white-space:pre">		</span>obj.put("msg", "文件類型不正確!");
	    	  <span style="white-space:pre">		</span>return obj.toString();
			}

1、03版xls

<span style="white-space:pre">	</span>public static JSONObject getData_2003(File file, int ignoreRows)throws FileNotFoundException, IOException {
		List<String[]> result = new ArrayList<String[]>();
		int rowSize = 0;
		BufferedInputStream in = new BufferedInputStream(new FileInputStream(
				file));
		POIFSFileSystem fs = new POIFSFileSystem(in);
		HSSFWorkbook wb = new HSSFWorkbook(fs);
		List<HSSFPictureData> list = wb.getAllPictures();
		String xp = "";
		for (HSSFPictureData p : list) {
			byte[] bytes = p.getData();
			BASE64Encoder encode = new BASE64Encoder();
			xp = encode.encode(bytes);
		}
		HSSFCell cell = null;
		for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {
			HSSFSheet st = wb.getSheetAt(sheetIndex);
			for (int rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {
				HSSFRow row = st.getRow(rowIndex);
				if (row == null) {
					continue;
				}
				int tempRowSize = row.getLastCellNum() + 1;
				if (tempRowSize > rowSize) {
					rowSize = tempRowSize;
				}
				String[] values = new String[rowSize];
				Arrays.fill(values, "");
				boolean hasValue = false;
				for (short columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {
					String value = "";
					cell = row.getCell(columnIndex);
					if (cell != null) {
						switch (cell.getCellType()) {
						case HSSFCell.CELL_TYPE_STRING:
							value = cell.getStringCellValue();
							break;
						case HSSFCell.CELL_TYPE_NUMERIC:
							if (HSSFDateUtil.isCellDateFormatted(cell)) {
								Date date = cell.getDateCellValue();
								if (date != null) {
									value = new SimpleDateFormat("yyyy年MM月dd日").format(date);
								} else {
									value = "";
								}
							} else {
								value = new DecimalFormat("0").format(cell
										.getNumericCellValue());
								if (value.length() == 5) {
									value = new SimpleDateFormat("yyyy年MM月dd日").format(cell.getDateCellValue());
								}
							}
							break;
						case HSSFCell.CELL_TYPE_FORMULA:
							// 導入時如果爲公式生成的數據則無值
							if (!cell.getStringCellValue().equals("")) {
								value = cell.getStringCellValue();
							} else {
								value = cell.getNumericCellValue() + "";
							}
							break;
						case HSSFCell.CELL_TYPE_BLANK:
							break;
						case HSSFCell.CELL_TYPE_ERROR:
							value = "";
							break;
						case HSSFCell.CELL_TYPE_BOOLEAN:
							value = (cell.getBooleanCellValue() == true ? "Y": "N");
							break;
						default:
							value = "";
						}
					}
					if (columnIndex == 0 && value.trim().equals("")) {
						break;
					}
					if (value != null && value != "") {
						values[columnIndex] = rightTrim(value);
						hasValue = true;
					}

				}
				if (hasValue) {
					result.add(values);
				}
			}
		}
		in.close();
		String[][] returnArray = new String[result.size()][rowSize];
		for (int i = 0; i < returnArray.length; i++) {
			returnArray[i] = (String[]) result.get(i);
		}
		return getJSON(returnArray, xp);
	}

2、07版以上xlsx

<span style="white-space:pre">	</span>//2007
	public static JSONObject getData_2007(File file, int ignoreRows)
			throws FileNotFoundException, IOException {
		List<String[]> result = new ArrayList<String[]>();
		int rowSize = 0;
		InputStream is = new FileInputStream(file);
		XSSFWorkbook wb = new XSSFWorkbook(is);
		List<XSSFPictureData> list = wb.getAllPictures();
		String xp = "";
		for (XSSFPictureData p : list) {
			byte[] bytes = p.getData();
			BASE64Encoder encode = new BASE64Encoder();
			xp = encode.encode(bytes);
		}
		XSSFCell cell = null;
		for (int sheetIndex = 0; sheetIndex < wb.getNumberOfSheets(); sheetIndex++) {
			XSSFSheet st = wb.getSheetAt(sheetIndex);
			
			for (int rowIndex = ignoreRows; rowIndex <= st.getLastRowNum(); rowIndex++) {
				XSSFRow row = st.getRow(rowIndex);
				if (row == null) {
					continue;
				}
				int tempRowSize = row.getLastCellNum() + 1;
				if (tempRowSize > rowSize) {
					rowSize = tempRowSize;
				}
				String[] values = new String[rowSize];
				Arrays.fill(values, "");
				boolean hasValue = false;
				for (short columnIndex = 0; columnIndex <= row.getLastCellNum(); columnIndex++) {
					String value = "";
					cell = row.getCell(columnIndex);
					if (cell != null) {
						switch (cell.getCellType()) {
						case HSSFCell.CELL_TYPE_STRING:
							value = cell.getStringCellValue();
							break;
						case HSSFCell.CELL_TYPE_NUMERIC:
							if (HSSFDateUtil.isCellDateFormatted(cell)) {
								Date date = cell.getDateCellValue();
								if (date != null) {
									value = new SimpleDateFormat("yyyy年MM月dd日")
											.format(date);
								} else {
									value = "";
								}
							} else {
								value = new DecimalFormat("0").format(cell
										.getNumericCellValue());
								if (value.length() == 5) {
									value = new SimpleDateFormat("yyyy年MM月dd日")
											.format(cell.getDateCellValue());
								}
							}
							break;
						case HSSFCell.CELL_TYPE_FORMULA:
							// 導入時如果爲公式生成的數據則無值
							if (!cell.getStringCellValue().equals("")) {
								value = cell.getStringCellValue();
							} else {
								value = cell.getNumericCellValue() + "";
							}
							break;
						case HSSFCell.CELL_TYPE_BLANK:
							break;
						case HSSFCell.CELL_TYPE_ERROR:
							value = "";
							break;
						case HSSFCell.CELL_TYPE_BOOLEAN:
							value = (cell.getBooleanCellValue() == true ? "Y"
									: "N");
							break;
						default:
							value = "";
						}
					}
					if (columnIndex == 0 && value.trim().equals("")) {
						break;
					}
					if (value != null && value != "") {
						values[columnIndex] = rightTrim(value);
						hasValue = true;
					}

				}
				if (hasValue) {
					result.add(values);
				}
			}
		}
		is.close();
		String[][] returnArray = new String[result.size()][rowSize];
		for (int i = 0; i < returnArray.length; i++) {
			returnArray[i] = (String[]) result.get(i);
		}
		return getJSON(returnArray, xp);
	}