java读取excel文件并返回list结果集

/**
* 用于读取excel
* @author HUA
*<span style="font-family: Arial, Helvetica, sans-serif;">count 为excel中的子文档号</span>
*/
public class excelload{
public static List<Map<String,Object>> loadExcel(String filepath,int count){
//创建Excel工作簿文件的引用
XSSFWorkbook wookbook=null;
try{
wookbook = new XSSFWorkbook(new FileInputStream(filepath));//根据路劲创建引用
}catch(FileNotFoundException e){
// TODO Auto-generated catch block
e.printStackTrace();
}catch(IOException e){
// TODO Auto-generated catch block
e.printStackTrace();
}
//在excel文档中，第一个工作表的缺省索引是0
XSSFSheet sheet=wookbook.getSheetAt(count);
//获取到excel文件中的所有行数
int rows = sheet.getPhysicalNumberOfRows();
int shengchanstart=0;
List<Map<String,Object>> li = new ArrayList<Map<String,Object>>();
boolean boo =false;
for(int i=1;i<rows;i++){
XSSFRow row = sheet.getRow(i);

if(row!=null){
//获取文件中的所有列
int cells = row.getPhysicalNumberOfCells();
String value="";
//遍历列
if(!boo){
aa: for(int j=0;j<cells;j++){

XSSFCell cell = row.getCell((short)j);

if(cell!=null){
switch(cell.getCellType()){
case XSSFCell.CELL_TYPE_FORMULA:
System.out.println(cell.getCellFormula() + "=====================");;
break;
case XSSFCell.CELL_TYPE_NUMERIC:
value += cell.getNumericCellValue() + ",";
break;
case XSSFCell.CELL_TYPE_STRING:
if("表名".equals(cell.getStringCellValue())){
boo=true;
break aa;
}
value += cell.getStringCellValue() + ",";
default:
value += "";
break;
}
}
}
}else{
XSSFCell cell = row.getCell((short)1);
Map<String,Object> map = new HashMap<String, Object>();
if(!"".equals(cell.getStringCellValue())){
String tablename=getMergedRegionValue(sheet,i);
map.put("table",tablename);
map.put("fieldname",row.getCell((short)(shengchanstart+2)).getStringCellValue());
map.put("desc",row.getCell((short)(shengchanstart+1)).getStringCellValue());
System.out.println(tablename+"**********");
li.add(map);
}
//System.out.println(i+"**********");
}
}
}
System.out.println(li);
return li;
}

--调用的方法

/**
* 获取合并单元格的值
* @param sheet
* @param row
* @param column
* @return
*/
public static String getMergedRegionValue(Sheet sheet ,int row ){
int sheetMergeCount = sheet.getNumMergedRegions();

for(int i = 0 ; i < sheetMergeCount ; i++){
org.apache.poi.ss.util.CellRangeAddress ca = sheet.getMergedRegion(i);
int firstColumn = ca.getFirstColumn();
int lastColumn = ca.getLastColumn();
int firstRow = ca.getFirstRow();
int lastRow = ca.getLastRow();
if(row >= firstRow && row <= lastRow){
Row fRow = sheet.getRow(firstRow);
Cell fCell = fRow.getCell(firstColumn);
return getCellValue(fCell) ;
}
}
return null ;
}
/**
* 获取单元格的值
* @param cell
* @return
*/
public static String getCellValue(Cell cell){

if(cell == null) return "";

if(cell.getCellType() == Cell.CELL_TYPE_STRING){

return cell.getStringCellValue();

}else if(cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){

return String.valueOf(cell.getBooleanCellValue());

}else if(cell.getCellType() == Cell.CELL_TYPE_FORMULA){

return cell.getCellFormula() ;

}else if(cell.getCellType() == Cell.CELL_TYPE_NUMERIC){

return String.valueOf(cell.getNumericCellValue());

}
return "";
}