{
List<ArrayList<String>> dataLst = new ArrayList<ArrayList<String>>();
/** *//** 检查文件名是否为空或者是否是Excel格式的文件 */
if (fileName == null || !fileName.matches("^.+\\.(?i)((xls)|(xlsx))$"))
{
return dataLst;
}
boolean isExcel2003 = true;
/** *//** 对文件的合法性进行验证 */
if (fileName.matches("^.+\\.(?i)(xlsx)$"))
{
isExcel2003 = false;
}
/** *//** 检查文件是否存在 */
File file = new File(fileName);
if (file == null || !file.exists())
{
return dataLst;
}
try
{
/** *//** 调用本类提供的根据流读取的方法 */
dataLst = read(new FileInputStream(file), isExcel2003);
}
catch (Exception ex)
{
ex.printStackTrace();
}
/** *//** 返回最后读取的结果 */
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[根据流读取Excel文件]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param inputStream
* @param isExcel2003
* @return
*/
public List<ArrayList<String>> read(InputStream inputStream,
boolean isExcel2003)
{
List<ArrayList<String>> dataLst = null;
try
{
/** *//** 根据版本选择创建Workbook的方式 */
Workbook wb = isExcel2003 ? new HSSFWorkbook(inputStream)
: new XSSFWorkbook(inputStream);
dataLst = read(wb);
}
catch (IOException e)
{
e.printStackTrace();
}
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[得到总行数]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @return
*/
public int getTotalRows()
{
return totalRows;
}
/** *//**
* <ul>
* <li>Description:[得到总列数]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @return
*/
public int getTotalCells()
{
return totalCells;
}
/** *//**
* <ul>
* <li>Description:[读取数据]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param wb
* @return
*/
private List<ArrayList<String>> read(Workbook wb)
{
List<ArrayList<String>> dataLst = new ArrayList<ArrayList<String>>();
/** *//** 得到第一个shell */
Sheet sheet = wb.getSheetAt(0);
this.totalRows = sheet.getPhysicalNumberOfRows();
if (this.totalRows >= 1 && sheet.getRow(0) != null)
{
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
/** *//** 循环Excel的行 */
for (int r = 0; r < this.totalRows; r++)
{
Row row = sheet.getRow(r);
if (row == null)
{
continue;
}
ArrayList<String> rowLst = new ArrayList<String>();
/** *//** 循环Excel的列 */
for (short c = 0; c < this.getTotalCells(); c++)
{
Cell cell = row.getCell(c);
String cellValue = "";
if (cell == null)
{
rowLst.add(cellValue);
continue;
}
/** *//** 处理数字型的,自动去零 */
if (Cell.CELL_TYPE_NUMERIC == cell.getCellType())
{
/** *//** 在excel里,日期也是数字,在此要进行判断 */
if (HSSFDateUtil.isCellDateFormatted(cell))
{
//cellValue = DateUtil.getyyyyMdHms(cell.getDateCellValue());
}
else
{
cellValue = getRightStr(cell.getNumericCellValue() + "");
}
}
/** *//** 处理字符串型 */
else if (Cell.CELL_TYPE_STRING == cell.getCellType())
{
cellValue = cell.getStringCellValue();
}
/** *//** 处理布尔型 */
else if (Cell.CELL_TYPE_BOOLEAN == cell.getCellType())
{
cellValue = cell.getBooleanCellValue() + "";
}
/** *//** 其它的,非以上几种数据类型 */
else
{
cellValue = cell.toString() + "";
}
rowLst.add(cellValue);
}
dataLst.add(rowLst);
}
return dataLst;
}
/** *//**
* <ul>
* <li>Description:[正确地处理整数后自动加零的情况]</li>
* <li>Created by [Huyvanpull] [Jan 20, 2010]</li>
* <li>Midified by [modifier] [modified time]</li>
* <ul>
*
* @param sNum
* @return
*/
private String getRightStr(String sNum)
{
DecimalFormat decimalFormat = new DecimalFormat("#.000000");
String resultStr = decimalFormat.format(new Double(sNum));
if (resultStr.matches("^[-+]?\\d+\\.[0]+$"))
{
resultStr = resultStr.substring(0, resultStr.indexOf("."));
}
return resultStr;
}
public List<String> getExecl(String fileNume){
List<ArrayList<String>> dataLst = new POIExcelUtil().read(fileNume);
List<String> num = new ArrayList<String>();
for (ArrayList<String> innerLst : dataLst)
{
StringBuffer rowData = new StringBuffer();
for (String dataStr : innerLst)
{
rowData.append(",").append(dataStr);
}
if (rowData.length() > 0)
{
//System.out.println(rowData.deleteCharAt(0).toString());
num.add(rowData.deleteCharAt(0).toString());
}
}
for(int i =2;i<num.size();i++){
for(int j=1;j<i;j++){
if(num.get(i).toString().equals(num.get(j).toString())){
num.remove(i);
num.add(i,"");
}
}
}
num.remove(0);
return num;
}
在上传时，在Workbook wb = isExcel2003 ? new HSSFWorkbook(inputStream) : new XSSFWorkbook(inputStream);这一行抛出 org.apache.poi.openxml4j.exceptions.InvalidOperationException: Can't open the specified file: 'D:\Program Files\Tomcat-6.0\temp\poifiles\poi-ooxml--867705816.tmp'异常。。。。请指点啊。。。在main方法里测试时没有问题。
