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();
}

}