poi导出excel

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.12</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.12</version>
</dependency>

package com.test.excel;

import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;

/**
 * 
 *excle导出 
 */
public class ExcelCreate {

    /**
     * excel生成
     */
    public static void main(String[] args) throws Throwable {
        // 表头
        List<String> headerList = new ArrayList<>(10);
        for (int i = 1; i <= 10; i++) {
            headerList.add("表头" + i);
        }

        // 数据
        List<String[]> dataRowList2 = new ArrayList<String[]>(10);
        for (int i = 1; i <= headerList.size(); i++) {
            dataRowList2.add(new String[] { "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i, "数据" + i });
        }

        SXSSFWorkbook workbook = new SXSSFWorkbook(90);
        Sheet sheet = workbook.createSheet("Export");

        int rownum = 0;
        // 表头
        Row row = sheet.createRow(rownum++);
        for (int i = 0; i < headerList.size(); i++) {
            Cell cell = row.createCell(i);
            cell.setCellValue(headerList.get(i));
        }

        // 数据
        for (String[] array : dataRowList2) {
            row = sheet.createRow(rownum++);
            String[] arraya = (String[]) array;
            for (int i = 0; i < dataRowList2.size(); i++) {
                Cell cell = row.createCell(i);
                cell.setCellValue(arraya[i]);
            }
        }

        
        FileOutputStream os = new FileOutputStream("c:/test/testexcel.xlsx");
        
        //以下代码可进行文件下载
//        response.reset();
//        response.setContentType("application/octet-stream; charset=utf-8");
//        response.setHeader("Content-Disposition", "attachment; filename="+Encodes.urlEncode("testexcel.xlsx"));
//        write(response.getOutputStream());
        
        workbook.write(os);
        workbook.dispose();
    }
}