package poi;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class ReadExcel001 {
public static void main(String[] args) {
readXml("D:/test.xlsx");
System.out.println("-------------");
readXml("d:/test2.xls");
}
public static void readXml(String fileName){
boolean isE2007 = false; //判斷是否是excel2007格式
if(fileName.endsWith("xlsx"))
isE2007 = true;
try {
InputStream input = new FileInputStream(fileName); //建立輸入流
Workbook wb = null;
//根據文件格式(2003或者2007)來初始化
if(isE2007)
wb = new XSSFWorkbook(input);
else
wb = new HSSFWorkbook(input);
Sheet sheet = wb.getSheetAt(0); //獲得第一個表單
Iterator<Row> rows = sheet.rowIterator(); //獲得第一個表單的叠代器
while (rows.hasNext()) {
Row row = rows.next(); //獲得行數據
System.out.println("Row #" + row.getRowNum()); //獲得行號從0開始
Iterator<Cell> cells = row.cellIterator(); //獲得第一行的叠代器
while (cells.hasNext()) {
Cell cell = cells.next();
System.out.println("Cell #" + cell.getColumnIndex());
switch (cell.getCellType()) { //根據cell中的類型來輸出數據
case HSSFCell.CELL_TYPE_NUMERIC:
System.out.println(cell.getNumericCellValue());
break;
case HSSFCell.CELL_TYPE_STRING:
System.out.println(cell.getStringCellValue());
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
System.out.println(cell.getBooleanCellValue());
break;
case HSSFCell.CELL_TYPE_FORMULA:
System.out.println(cell.getCellFormula());
break;
default:
System.out.println("unsuported sell type");
break;
}
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
}

轉帖 java使用poi.3.10讀取excel 2010