如何使用Apache POI读取所有单元格值？

我想使用Apache POI从excel表中读取所有单元格值并将其存储到一维字符串数组中。是否可以逐行读取excel中的数据并从每个单元格中提取值？

请帮我解决这个问题。

谢谢

Answer 1

 import java.io.FileInputStream;
 import java.util.Iterator;
 import java.util.Vector; 

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

公共类ReadExcelFile {

public static void main( String [] args ) { String fileName="C:\\temp\\testPOI.xls"; //Read an Excel File and Store in a Vector Vector dataHolder=readExcelFile(fileName); //Print the data read printCellDataToConsole(dataHolder); } public static Vector readExcelFile(String fileName) { /** --Define a Vector --Holds Vectors Of Cells */ Vector cellVectorHolder = new Vector(); try{ /** Creating Input Stream**/ //InputStream myInput= ReadExcelFile.class.getResourceAsStream( fileName ); FileInputStream myInput = new FileInputStream(fileName); /** Create a POIFSFileSystem object**/ POIFSFileSystem myFileSystem = new POIFSFileSystem(myInput); /** Create a workbook using the File System**/ HSSFWorkbook myWorkBook = new HSSFWorkbook(myFileSystem); /** Get the first sheet from workbook**/ HSSFSheet mySheet = myWorkBook.getSheetAt(0); /** We now need something to iterate through the cells.**/ Iterator rowIter = mySheet.rowIterator(); while(rowIter.hasNext()){ HSSFRow myRow = (HSSFRow) rowIter.next(); Iterator cellIter = myRow.cellIterator(); Vector cellStoreVector=new Vector(); while(cellIter.hasNext()){ HSSFCell myCell = (HSSFCell) cellIter.next(); cellStoreVector.addElement(myCell); } cellVectorHolder.addElement(cellStoreVector); } }catch (Exception e){e.printStackTrace(); } return cellVectorHolder; } private static void printCellDataToConsole(Vector dataHolder) { for (int i=0;i

}

Answer 2

有关于Javaworld的文档， 它的POI-Fect向您展示了如何实现这一目标。

例：

 String fileName = "C:/MyExcelFile.xls"; // file we are interested in POIFSFileSystem fileSystem = new POIFSFileSystem(new FileInputStream(fileName)); HSSFWorkbook workbook = new HSSFWorkbook(fileSystem); HSSFSheet sheet = workbook.getSheetAt(0); //Get first Excel Sheet //Iterate throw each row. Iterator rows = sheet.rowIterator(); while (rows.hasNext()) { HSSFRow row = (HSSFRow) rows.next(); Iterator cells = row.cellIterator(); while (cells.hasNext()) { HSSFCell cell = (HSSFCell) cells.next(); //Must do this, you need to get value based on the cell type switch (cell.getCellType()) { case HSSFCell.CELL_TYPE_NUMERIC: System.out.println(cell.getNumericCellValue()); break; case HSSFCell.CELL_TYPE_STRING: System.out.println(cell.getStringCellValue()); break; default: break; } } }