POI读写海量数据

import java.io.FileOutputStream;
import java.io.OutputStream;

import org.apache.poi.xssf.streaming.SXSSFRow;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFRow;


public class TestPOI {

/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub

OutputStream os = new FileOutputStream("D:/"+System.currentTimeMillis()+".xlsx");     
        //工作区    
SXSSFWorkbook wb = new SXSSFWorkbook();    
        SXSSFSheet sheet= (SXSSFSheet)wb.createSheet("test");
        SXSSFRow row =null;
        for(int i=0;i<110000;i++){ 
        row = (SXSSFRow) sheet.createRow(i);   
            for(int a=0;a<10;a++){
            row.createCell(a).setCellValue("column"+a);   
            }
            row=null;
//            //给这一行的第一列赋值    
//            row.createCell(0).setCellValue("column1");    
//            //给这一行的第一列赋值    
//            row.createCell(1).setCellValue("column2"); 
            System.out.println(i); 
        }  
        //写文件    
        wb.write(os);    
        //关闭输出流    
        os.close();   
}

}