();
row = sheet.getRow(i);
if (row != null) {
for (int j = 0; j < colnum; j++) {
cellData = (String) getCellFormatValue(row.getCell(j));
map.put(columns[j], cellData);
}
} else {
break;
}
list.add(map);
}
}
// 遍历解析出来的list
StringBuffer sb = new StringBuffer();
for (int i = 0; i < list.size(); i++) {
for (Entryentry : list.get(i).entrySet()) {
String value = entry.getValue();
sb.append(value + ",");
}
sb.append("\r\n");
}
WriteToFile(sb.toString(), textPath);
System.out.println("*************EXCEL转成TXT格式成功*************");
}
// 读取excel
public static Workbook readExcel(String filePath) {
Workbook wb = null;
if (filePath == null) {
return null;
}
String extString = filePath.substring(filePath.lastIndexOf("."));
InputStream is = null;
try {
is = new FileInputStream(filePath);
if (".xls".equals(extString)) {
return wb = new HSSFWorkbook(is);
} else if (".xlsx".equals(extString)) {
return wb = new XSSFWorkbook(is);
} else {
return wb = null;
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return wb;
}
public static Object getCellFormatValue(Cell cell) {
Object cellValue = null;
if (cell != null) {
// 判断cell类型
switch (cell.getCellType()) {
case Cell.CELL_TYPE_NUMERIC: {
cellValue = String.valueOf(cell.getNumericCellValue());
break;
}
case Cell.CELL_TYPE_FORMULA: {
// 判断cell是否为日期格式
if (DateUtil.isCellDateFormatted(cell)) {
// 转换为日期格式YYYY-mm-dd
cellValue = cell.getDateCellValue();
} else {
// 数字
cellValue = String.valueOf(cell.getNumericCellValue());
}
break;
}
case Cell.CELL_TYPE_STRING: {
cellValue = cell.getRichStringCellValue().getString();
break;
}
default:
cellValue = "";
}
} else {
cellValue = "";
}
return cellValue;
}
/**
* 生成文件
* @param str
* @param filePath
* @throws IOException
*/
public static void WriteToFile(String str, String filePath) throws IOException {
BufferedWriter bw = null;
try {
FileOutputStream out = new FileOutputStream(filePath, true);// true,表示:文件追加内容，不重新生成,默认为false
bw = new BufferedWriter(new OutputStreamWriter(out, "GBK"));
bw.write(str += "\r\n");// 换行
bw.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
bw.close();
}
}
}
