excelsample.java

一个专家资料的管理系统

package cn.com.likai.sms.db;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

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;

public class ExcelSample {

	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		FileInputStream fileln = new FileInputStream("workbook.xls");
		POIFSFileSystem fs = new POIFSFileSystem(fileln);
		HSSFWorkbook wb = new HSSFWorkbook(fs);
		HSSFSheet sheet = wb.getSheetAt(0);
		HSSFRow row = sheet.getRow(2);
		if(row == null){
			System.out.println("fail 1");
			return;
		}
		HSSFCell cell = row.getCell((short)1);
		if(cell == null){
			System.out.println("fail 2");
			return;
		}
		cell.setEncoding(HSSFCell.ENCODING_UTF_16);
		cell.setCellValue("凯哥");
		FileOutputStream fileOut = new FileOutputStream("workbook.xls");
		wb.write(fileOut);
		fileOut.close();
		
		try{
			Runtime.getRuntime().exec("cmd /c start \\workbook.xls");  

		}catch(IOException e){e.printStackTrace();}

	}

}