Java读取Excel文件

FileInputStream excelFile = new FileInputStream(excelPath);
XSSFWorkbook workbook = new XSSFWorkbook(excelFile);

XSSFSheet excelSheet = workbook.getSheet(sheetName);

int rows = excelSheet.getPhysicalNumberOfRows(); //行数
int cols = excelSheet.getRow(0).getPhysicalNumberOfCells();//列数

    public static String ReadData(XSSFSheet excelSheet, int row, int col){
        try{
            String CellData= "";
            XSSFCell cell = excelSheet.getRow(row).getCell(col);
            if(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC){
                cell.setCellType(Cell.CELL_TYPE_STRING);
                CellData = cell.getStringCellValue();
            }
            else if(cell.getCellType() == HSSFCell.CELL_TYPE_STRING){
                CellData = cell.getStringCellValue();
            }
            else if(cell.getCellType() == HSSFCell.CELL_TYPE_FORMULA){
                CellData = cell.getCellFormula();
            }
            return CellData;
        }catch(Exception e){
            return "";
        }
    }

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class Excel {
    
    public static void main(String[] args) throws IOException {
        String excelPath = "F:\\login.xlsx";
        String sheetName = "001";
        try{
            FileInputStream excelFile = new FileInputStream(excelPath);
            XSSFWorkbook workbook = new XSSFWorkbook(excelFile);
            XSSFSheet excelSheet = workbook.getSheet(sheetName);
            int row = excelSheet.getPhysicalNumberOfRows(); //行数
            int col = excelSheet.getRow(0).getPhysicalNumberOfCells();//列数for(int r = 0; r< row; ++r){
                for (int c =0; c < col; ++c){
                    System.out.print(ReadData(excelSheet, r, c) + ‘ ‘);
                    if(c ==1)
                        System.out.println();
                }
            }
            workbook.close();
        }catch (FileNotFoundException e ){
            System.out.println("找不到该文件");
        }
    }
    
    public static String ReadData(XSSFSheet excelSheet, int row, int col){
        try{
            String CellData= "";
            XSSFCell cell = excelSheet.getRow(row).getCell(col);
            if(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC){
                cell.setCellType(Cell.CELL_TYPE_STRING);
                CellData = cell.getStringCellValue();
            }
            if(cell.getCellType() == HSSFCell.CELL_TYPE_STRING){
                CellData = cell.getStringCellValue();
            }
            if(cell.getCellType() == HSSFCell.CELL_TYPE_FORMULA){
                CellData = cell.getCellFormula();
            }
            return CellData;
        }catch(Exception e){
            return "";
        }
    }
}