private Collection<Object[]> loadFromSpreadsheet(final InputStream excelFile) throws IOException {
HSSFWorkbook workbook = new HSSFWorkbook(excelFile);
data = new ArrayList<Object[]>();
Sheet sheet = workbook.getSheetAt(0);
int numberOfColumns = countNonEmptyColumns(sheet);
List<Object[]> rows = new ArrayList<Object[]>();
List<Object> rowData = new ArrayList<Object>();
for (Row row : sheet) {
if (isEmpty(row)) {
break;
} else {
rowData.clear();
for (int column = 0; column < numberOfColumns; column++) {
Cell cell = row.getCell(column);
rowData.add(objectFrom(workbook, cell));
}
rows.add(rowData.toArray());
}
}
return rows;
}
/**
* 读取97-2003格式
*
* @param filePath 文件路径
* @throws java.io.IOException
*/
@SuppressWarnings("rawtypes")
public static List<Map> readExcel2003(String filePath) throws IOException {
// 返回结果集
List<Map> valueList = new ArrayList<Map>();
FileInputStream fis = null;
try {
fis = new FileInputStream(filePath);
HSSFWorkbook wookbook = new HSSFWorkbook(fis); // 创建对Excel工作簿文件的引用
HSSFSheet sheet = wookbook.getSheetAt(0); // 在Excel文档中，第一张工作表的缺省索引是0
int rows = sheet.getPhysicalNumberOfRows(); // 获取到Excel文件中的所有行数
Map<Integer, String> keys = new HashMap<Integer, String>();
int cells = 0;
// 遍历行（第1行 表头） 准备Map里的key
HSSFRow firstRow = sheet.getRow(0);
if (firstRow != null) {
// 获取到Excel文件中的所有的列
cells = firstRow.getPhysicalNumberOfCells();
// 遍历列
for (int j = 0; j < cells; j++) {
// 获取到列的值
try {
HSSFCell cell = firstRow.getCell(j);
String cellValue = getCellValue(cell);
keys.put(j, cellValue);
} catch (Exception e) {
e.printStackTrace();
}
}
}
// 遍历行（从第二行开始）
for (int i = 1; i < rows; i++) {
// 读取左上端单元格(从第二行开始)
HSSFRow row = sheet.getRow(i);
// 行不为空
if (row != null) {
// 准备当前行 所储存值的map
Map<String, Object> val = new HashMap<String, Object>();
boolean isValidRow = false;
// 遍历列
for (int j = 0; j < cells; j++) {
// 获取到列的值
try {
HSSFCell cell = row.getCell(j);
String cellValue = getCellValue(cell);
val.put(keys.get(j), cellValue);
if (!isValidRow && cellValue != null && cellValue.trim().length() > 0) {
isValidRow = true;
}
} catch (Exception e) {
e.printStackTrace();
}
}
// 第I行所有的列数据读取完毕，放入valuelist
if (isValidRow) {
valueList.add(val);
}
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
fis.close();
}
return valueList;
}