lxy/excel-kit
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add method for get all Excel sheet's names

Browse Source
This commit is contained in:
lxyer 2018-09-21 12:45:54 +08:00
parent 352c5934e3
commit 40a64e6392
1 changed files with 36 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
src/com/lxyer/excel/poi/ExcelKit.java
View File

@ -134,7 +134,6 @@ public class ExcelKit {
* @throws IOException
* @date 2015-3-13 上午9:00:36
*/
@SuppressWarnings("all")
private static boolean downloadExcel(Workbook wb, String xlsName, HttpServletRequest request, HttpServletResponse response) throws IOException{
if(request.getHeader("user-agent").indexOf("MSIE") != -1) {
xlsName = java.net.URLEncoder.encode(xlsName,"utf-8") + ".xls";
@ -175,56 +174,31 @@ public class ExcelKit {
if(nRow == null){
nRow = sheet.createRow(r);
}
// nRow.setColumnWidth(r, arg1);
Cell nCell = nRow.createCell(c);
//根据不同类型进行转化，如有其它类型没有考虑周全的，使用发现的时候添加
char type = 'x';
if(o instanceof Integer){
type = 1;
}else if(o instanceof Double){
type = 2;
}else if(o instanceof Float){
type = 3;
}else if(o instanceof String){
type = 4;
}else if(o instanceof Date){
type = 5;
}else if(o instanceof Calendar){
type = 6;
}else if(o instanceof Boolean){
type = 7;
}else if(o == null) {
type = 8;
}
switch (type) {
case 1:nCell.setCellValue((Integer)o);break;
case 2:nCell.setCellValue((Double)o);break;
case 3:nCell.setCellValue((Float)o);break;
case 4:nCell.setCellValue((String)o);break;
case 5:nCell.setCellValue(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(o));break;
case 6:nCell.setCellValue((Calendar)o);break;
case 7:nCell.setCellValue((Boolean)o);break;
case 8:nCell.setCellValue("");break;
default:nCell.setCellValue(o + "");break;
}
if (o instanceof Integer) nCell.setCellValue((Integer)o);
else if (o instanceof Double) nCell.setCellValue((Double)o);
else if (o instanceof Float) nCell.setCellValue((Float)o);
else if (o instanceof String) nCell.setCellValue((String)o);
else if (o instanceof Date) nCell.setCellValue(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(o));
else if (o instanceof Calendar) nCell.setCellValue((Calendar)o);
else if (o instanceof Boolean) nCell.setCellValue((Boolean)o);
else if (o == null) nCell.setCellValue("");
else nCell.setCellValue(o + "");
}
//======================= 读取excel ===============================
/**
* read excel head
* @param file
* @param fields
* @param lastRowNum hope get row count
* @return
* @throws IOException
*/
public static List<Map> readExcelHead(File file, String[] fields, int lastRowNum) throws IOException {
return readExcel(file, fields, lastRowNum, null);
//read excel head
public static Map readExcelHead(File file, String[] fields) throws IOException {
List<Map> list = readExcel(file, fields, 1, null);
return list.size() > 0 ? list.get(0) : new HashMap();
}
//read excel head by sheetName
public static Map readExcelHead(File file, String[] fields, String sheetName) throws IOException {
List<Map> list = readExcel(file, fields, 1, sheetName);
return list.size() > 0 ? list.get(0) : new HashMap();
}
//read excel sheet[0]
@ -402,5 +376,21 @@ public class ExcelKit {
}
return true;
}
//get all sheet names
public static List<String> getSheetNames(File file) throws IOException {
Workbook wk;
try {
wk = new HSSFWorkbook(new FileInputStream(file));//if excel version 2007+ will throws OfficeXmlFileException
}catch (OfficeXmlFileException e){
wk = new XSSFWorkbook(new FileInputStream(file));
}
List<String> sheetNames = new ArrayList<>();
for (int i = 0; i < wk.getNumberOfSheets(); i++) {
sheetNames.add(wk.getSheetAt(i).getSheetName());
}
return sheetNames;
}
}