java获取Excel的导入

先准备好这2个架包

import java.io.*;

import org.apache.commons.io.FileUtils;
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;

public class POIExceldr {

	public static void main(String[] args) throws IOException {
		String [] title={"id","name","sex"};
		// 创建工作簿
		HSSFWorkbook workbook=new HSSFWorkbook();
		//创建一个工作表sheet
		HSSFSheet sheet =workbook.createSheet();
		//创建第一行
		HSSFRow row=sheet.createRow(0);
		HSSFCell cell=null;
       //插入第一行数据，ID，name,sex
		for(int i=0;i<title.length;i++)
		{
			cell=row.createCell(i);
			cell.setCellValue(title[i]);
		}
		//追加数据，也就是添加第二行到第十行
		for(int i=1;i<=10;i++)
		{
			HSSFRow nextrow=sheet.createRow(i);
			HSSFCell cell2=nextrow.createCell(0);
			cell2.setCellValue("a"+i);

			cell2=nextrow.createCell(1);
			cell2.setCellValue("xiaowang"+i);

			cell2=nextrow.createCell(2);
			cell2.setCellValue("女"+i);
		}
		File file=new File("d:/learn/poidr.xls");
		file.createNewFile();
		FileOutputStream out=FileUtils.openOutputStream(file);
		workbook.write(out);
		out.close();

	}

}