package cn.com.com;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
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 Excel {
	/*
	 * author:命運(yùn)的信徒
	 * date:2019-07-31 
	 * arm:通過java程序往excel里面續(xù)寫數(shù)據(jù)
	 */
	public static void main(String[] args) {
		String url="C:/Users/Administrator/Desktop/img/1.xls";
		FileInputStream fs;
		try {
			fs = new FileInputStream(url);
			POIFSFileSystem ps=new POIFSFileSystem(fs); //使用POI提供的方法得到excel的信息 
	    HSSFWorkbook wb=new HSSFWorkbook(ps); 
	    HSSFSheet sheet=wb.getSheetAt(0); //獲取到工作表，因?yàn)橐粋€(gè)excel可能有多個(gè)工作表 
	    HSSFRow row=sheet.getRow(0);
	    int hang=0;
	    if("".equals(row)||row==null){
	    	hang=0;
	    }else{
	    	 hang=sheet.getLastRowNum();	
	    	 hang=hang+1;	
	    }
      //分別得到最后一行的行號(hào)，和一條記錄的最后一個(gè)單元格     
	    FileOutputStream out=new FileOutputStream(url); //向d://test.xls中寫數(shù)據(jù) 
	    row=sheet.createRow((short)(hang)); //在現(xiàn)有行號(hào)后追加數(shù)據(jù) 
	    row.createCell(0).setCellValue("安徽"); //設(shè)置第一個(gè)（從0開始）單元格的數(shù)據(jù) 
	    row.createCell(1).setCellValue("安慶"); //設(shè)置第二個(gè)（從0開始）單元格的數(shù)據(jù) 
	    out.flush(); 
	    wb.write(out);  
	    out.close();  
	    System.out.println(row.getPhysicalNumberOfCells()+" "+row.getLastCellNum());  
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} //獲取d://test.xls 
	}
}