java读取excel文件

java读取excel文件

/**
 *ParseExcel.java
 *下午02:40:40
 */
package com.zsmj.utilit;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
/**
 * @author la
 *POI工具读取Excel文件
 */
public class ParseExcel {
	
	private void parseExcel(String excelFile)throws IOException {
		POIFSFileSystem fs=new POIFSFileSystem(new FileInputStream(excelFile));//打开Excel文件
		HSSFWorkbook wbHssfWorkbook=new HSSFWorkbook(fs);//打开工作薄
		HSSFSheet sheet=wbHssfWorkbook.getSheetAt(0);//打开工作表
		
		HSSFRow row=null;
		String data=null;
		for (int i = 0; i <=sheet.getLastRowNum(); i++) {//循环读取每一行
			row =sheet.getRow(i);
			for (int j = 0; j <= row.getLastCellNum(); j++) {//循环读取每一列
				switch (row.getCell((short)j).getCellType()) {//判断单元格的数据类型
				case HSSFCell.CELL_TYPE_BLANK:
					data="";
					break;
				case HSSFCell.CELL_TYPE_NUMERIC:
					data=(long)row.getCell((short)j).getNumericCellValue()+"";
					break;
				default:
					data=row.getCell((short)j).getStringCellValue();
					break;
				}
				System.out.print(data+"\t");
			}
			System.out.println();
		}
	}
	/**
	 * @param args
	 *2012-10-23
	 *void
	 */
	public static void main(String[] args)throws IOException {
		new ParseExcel().parseExcel(args[0]);
	}
}