POI导出

package com.wkrj.info.controller;



import java.io.*;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
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.ss.util.CellRangeAddress;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import static com.wkrj.info.controller.ExprotCellStyle.*;

/**
 * 导出用户数据
 * @author LJH
 *
 */
public class ExportUserUtils {


    /**
     * 把数据导出到path
     */
    @SuppressWarnings("deprecation")
    public static void exportD(List<Map<String ,Object>> datalist, HttpServletRequest request, HttpServletResponse response) {
        //创建工作簿
        HSSFWorkbook workbook=new HSSFWorkbook();
        //从工作簿里面创建sheet
//		workbook.createSheet();
        HSSFSheet sheet = workbook.createSheet("用户列表");
        //设置sheet
        //sheet.setColumnWidth(2, 100);//设置某一个下标的列宽
        //sheet.setDefaultColumnStyle(column, style);//设置某一列的默认样式
        sheet.setDefaultColumnWidth(20);//设置所有列的列宽
//		sheet.setColumnHidden(columnIndex, hidden);//设置某一列是否隐藏
        //sheet.setDefaultRowHeight((short)(30*20));//设置行高60
        //sheet.setDefaultRowHeightInPoints(30);//设置行高30
        //的sheet上创建行
        int rownum=0;
        /*HSSFRow row01 = sheet.createRow(rownum);
        //在row01上创建单元格
        HSSFCell cell_row01 = row01.createCell(0);
        //向cell_row01写东西
        cell_row01.setCellValue("用户数据");
        //设置标题样式
        HSSFCellStyle titleStyle=createTitleCellStyle(workbook);
        cell_row01.setCellStyle(titleStyle);

        //第二行
        rownum++;*/
        HSSFRow row03 = sheet.createRow(rownum);
        //员工姓名	公司名称	性别	手机号	办公楼宇	办公室	体温	扫码地点	扫码时间
        String[] titles={"员工姓名","公司名称","性别","手机号","办公楼宇","办公室","体温","扫码地点","扫码时间"};
        //得到表头的样式
        HSSFCellStyle tableTitleStyle=createTableTitleStyle(workbook);

        for (int i = 0; i < titles.length; i++) {
            HSSFCell cell = row03.createCell(i);
            cell.setCellValue(titles[i]);
            cell.setCellStyle(tableTitleStyle);
        }

        HSSFCellStyle tableBodyStyle=setRowCellCenter(workbook);
        for (int i = 0; i < datalist.size(); i++) {
            //${item.staff_name}	${item.enterprise_name}	${item.staff_sex}	${item.staff_tel}	${item.staff_addr}	${item.addr_roomno}	${item.info_tem}	${item.addr_name}	${item.time}
            rownum++;
            HSSFRow row = sheet.createRow(rownum);
            Map<String,Object> entity =datalist.get(i);
            //创建idcell
            HSSFCell staff_nameCell = row.createCell(0);
            staff_nameCell.setCellValue(entity.get("staff_name").toString());

            staff_nameCell.setCellStyle(tableBodyStyle);
            //创建namecell
            HSSFCell enterprise_nameCell = row.createCell(1);
            enterprise_nameCell.setCellValue(entity.get("enterprise_name").toString());
            enterprise_nameCell.setCellStyle(tableBodyStyle);

            //创建addresscell
            HSSFCell staff_sexCell = row.createCell(2);
            staff_sexCell.setCellValue(entity.get("staff_sex").toString());
            staff_sexCell.setCellStyle(tableBodyStyle);


            HSSFCell staff_telCell = row.createCell(3);
            staff_telCell.setCellValue(entity.get("staff_tel").toString());
            staff_telCell.setCellStyle(tableBodyStyle);


            HSSFCell staff_addrCell = row.createCell(4);
            staff_addrCell.setCellValue(entity.get("staff_addr").toString());
            staff_addrCell.setCellStyle(tableBodyStyle);

            HSSFCell addr_roomnoCell = row.createCell(5);
            addr_roomnoCell.setCellValue(entity.get("addr_roomno").toString());
            addr_roomnoCell.setCellStyle(tableBodyStyle);

            HSSFCell info_temCell = row.createCell(6);
            info_temCell.setCellValue(entity.get("info_tem").toString());
            info_temCell.setCellStyle(tableBodyStyle);
            HSSFCell addr_nameCell = row.createCell(7);
            addr_nameCell.setCellValue(entity.get("addr_name").toString());
            addr_nameCell.setCellStyle(tableBodyStyle);
            HSSFCell timeCell = row.createCell(8);
            timeCell.setCellValue(entity.get("time").toString());
            timeCell.setCellStyle(tableBodyStyle);
        }

        //导出数据
            //workbook.write(new File(path));
            String fileName = System.currentTimeMillis() + ".xls";
            /*String path = getClass().getClassLoader().getResource("/").getPath()*/
            String path =request.getSession().getServletContext().getRealPath("/")
                    + "upload/" + fileName;
            //System.out.println(path);
            File file = new File(path);
            try {
                file.createNewFile();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
            try {
                OutputStream fOut = new FileOutputStream(file);
                // 设置response参数，可以打开下载页面
                response.reset();
                //设置响应文本格式
                response.setContentType("application/vnd.ms-excel;charset=utf-8");
                response.setHeader("Content-Disposition",
                        "attachment;filename=" + new String(("扫码记录" + ".xls").getBytes(), "iso-8859-1"));
                //将文件输出到页面
                ServletOutputStream out = response.getOutputStream();
                workbook.write(out);
                fOut.flush();
                fOut.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

            System.out.println("导出完成");
    }
}

标签：sheet,addr,导出,HSSFCell,createCell,POI,import,staff
来源： https://blog.csdn.net/ivy_doudou/article/details/104694557