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小编给大家分享一下java如何导出excel，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
/**
* excel表格直接下载
*/
public static void exportExcelByDownload(HSSFWorkbook wb,HttpServletResponse httpServletResponse,String fileName) throws Exception {
//响应类型为application/octet- stream情况下使用了这个头信息的话，那就意味着不想直接显示内容
httpServletResponse.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
//attachment为以附件方式下载
httpServletResponse.setHeader("Content-Disposition","attachment;filename=" + URLEncoder.encode(
fileName + ".xls",
"utf-8"));
/**
* 代码里面使用Content-Disposition来确保浏览器弹出下载对话框的时候。
* response.addHeader("Content-Disposition","attachment");一定要确保没有做过关于禁止浏览器缓存的操作
*/
httpServletResponse.setHeader("Cache-Control", "No-cache");
httpServletResponse.flushBuffer();
wb.write(httpServletResponse.getOutputStream());
wb.close();
}
/**
* excel以文件的形式导出
* @throws Exception
*/
public static void exportExcelByFile(HSSFWorkbook wb,String fileName,String path) throws Exception{
ByteArrayOutputStream stream = new ByteArrayOutputStream();
wb.write(stream);
FileOutputStream outputStream = new FileOutputStream(path + fileName);
outputStream.write(stream.toByteArray());
stream.close();
outputStream.close();
}效果图：
好了，废话不多少，上代码
jsp前端代码
<div > <a>时间：</a> <input id="startDateConsume" type="text" class="easyui-datebox"> <a>-</a> <input id="endDateConsume" type="text" class="easyui-datebox"> <a>消费类型：</a> <select id="consumesType" name=""> <option value="0" selected="selected">所有</option> <option value="1">报名费</option> <option value="2">酒水零食类</option> </select> <a>支付状态：</a> <select id="conPaymentStatus" name=""> <option value="0" selected="selected">所有</option> <option value="1">未支付</option> <option value="2">已支付</option> </select> <a id="btnConsumesSearch" class="easyui-linkbutton" data-options="iconCls:'icon-search'" >查询</a><a>（查询出来的数据可统计）</a> <a id="consumesOutExcel" class="easyui-linkbutton" data-options="iconCls:'icon-redo'">导出表</a> </div>
js前端代码
$(function() {
//导出excel表
$('#consumesOutExcel').on('click',function(){
exportExcel();
});
});
function exportExcel() {
$.messager.confirm('确认', '确认把该搜索结果导出Excel表格 ？', function(r) {
if (r) {
var startTime = $('#startDateConsume').val();
var endTime = $('#endDateConsume').val();
var consumesType = $('#consumesType').val();
var conPaymentStatus = $('#conPaymentStatus').val();
$.messager.progress({
title : '处理中',
msg : '请稍后',
});
$.messager.progress('close');
location.href="web/vip/exportExcel.xlsx?startTime=" rel="external nofollow" +startTime+"&endTime="+endTime+"&consumesType="+consumesType+"&conPaymentStatus="+conPaymentStatus;
}
});
}java后端代码
@Controller
@RequestMapping("/vip")
public class VipController {
//文件下载：导出excel表
@RequestMapping(value = "/exportExcel.xlsx",method = RequestMethod.GET)
@ResponseBody
public void exportExcel(HttpServletRequest request,HttpServletResponse response) throws UnsupportedEncodingException{
//一、从后台拿数据
if (null == request || null == response)
{
return;
}
List<VipConsumes> list = null;
String startTime = request.getParameter("startTime");
String endTime = request.getParameter("endTime");
int consumesType = Integer.parseInt(request.getParameter("consumesType"));
int conPaymentStatus =Integer.parseInt(request.getParameter("conPaymentStatus"));
VipConsumesExample example = new VipConsumesExample();
if(consumesType!=0 && conPaymentStatus!=0){
example.createCriteria().andTimeBetween(startTime, endTime).andConsumeTypeEqualTo(consumesType).andStatusEqualTo(conPaymentStatus);
}else if(consumesType ==0 && conPaymentStatus!=0) {
example.createCriteria().andTimeBetween(startTime, endTime).andStatusEqualTo(conPaymentStatus);
}else if(consumesType!=0 && conPaymentStatus==0){
example.createCriteria().andTimeBetween(startTime, endTime).andConsumeTypeEqualTo(consumesType);
}else {
example.createCriteria().andTimeBetween(startTime, endTime);
}
list = this.vipConsumesDao.selectByExample(example);
//二、 数据转成excel
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("application/x-download");
String fileName = "消费记录.xlsx";
fileName = URLEncoder.encode(fileName, "UTF-8");
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
// 第一步：定义一个新的工作簿
XSSFWorkbook wb = new XSSFWorkbook();
// 第二步：创建一个Sheet页
XSSFSheet sheet = wb.createSheet("startTimeendTime");
sheet.setDefaultRowHeight((short) (2 * 256));//设置行高
sheet.setColumnWidth(0, 4000);//设置列宽
sheet.setColumnWidth(1,5500);
sheet.setColumnWidth(2,5500);
sheet.setColumnWidth(3,5500);
sheet.setColumnWidth(11,3000);
sheet.setColumnWidth(12,3000);
sheet.setColumnWidth(13,3000);
XSSFFont font = wb.createFont();
font.setFontName("宋体");
font.setFontHeightInPoints((short) 16);
XSSFRow row = sheet.createRow(0);
XSSFCell cell = row.createCell(0);
cell.setCellValue("流水号 ");
cell = row.createCell(1);
cell.setCellValue("微信名 ");
cell = row.createCell(2);
cell.setCellValue("微信订单号");
cell = row.createCell(3);
cell.setCellValue("消费时间");
cell = row.createCell(4);
cell.setCellValue("消费类型");
cell = row.createCell(5);
cell.setCellValue("剩余积分 ");
cell = row.createCell(6);
cell.setCellValue("新增积分 ");
cell = row.createCell(7);
cell.setCellValue("扣除积分 ");
cell = row.createCell(8);
cell.setCellValue("消费金额");
cell = row.createCell(9);
cell.setCellValue("支付方式");
cell = row.createCell(10);
cell.setCellValue("支付状态 ");
cell = row.createCell(11);
cell.setCellValue("钱包原始金额");
cell = row.createCell(12);
cell.setCellValue("钱包扣除金额");
cell = row.createCell(13);
cell.setCellValue("钱包剩余金额");
XSSFRow rows;
XSSFCell cells;
for (int i = 0; i < list.size(); i++) {
// 第三步：在这个sheet页里创建一行
rows = sheet.createRow(i+1);
// 第四步：在该行创建一个单元格
cells = rows.createCell(0);
// 第五步：在该单元格里设置值
cells.setCellValue(list.get(i).getConsumeId());
cells = rows.createCell(1);
cells.setCellValue(list.get(i).getName());
cells = rows.createCell(2);
cells.setCellValue(list.get(i).getOrderNumber());
cells = rows.createCell(3);
cells.setCellValue(list.get(i).getTime());
cells = rows.createCell(4);
if (list.get(i).getConsumeType() == 2) {
cells.setCellValue("酒水零食费");
} else {
cells.setCellValue("报名费");
}
cells = rows.createCell(5);
cells.setCellValue(list.get(i).getIntegral());
cells = rows.createCell(6);
cells.setCellValue(list.get(i).getIntegralIn());
cells = rows.createCell(7);
cells.setCellValue(list.get(i).getIntegralOut());
cells = rows.createCell(8);
cells.setCellValue(list.get(i).getMoney());
cells = rows.createCell(9);
if (list.get(i).getPayment() == 2) {
cells.setCellValue("积分抵现");
} else if (list.get(i).getPayment() == 3) {
cells.setCellValue("微信支付");
} else if (list.get(i).getPayment() == 4) {
cells.setCellValue("现金");
} else if (list.get(i).getPayment() == 1) {
cells.setCellValue("钱包");
}
cells = rows.createCell(10);
if (list.get(i).getStatus() == 2) {
cells.setCellValue("已支付");
} else if (list.get(i).getStatus() == 1) {
cells.setCellValue("未支付");
}
cells = rows.createCell(11);
cells.setCellValue(list.get(i).getWalletOriginal());
cells = rows.createCell(12);
cells.setCellValue(list.get(i).getWalletOut());
cells = rows.createCell(13);
cells.setCellValue(list.get(i).getWalletSurplus());
}
try {
OutputStream out = response.getOutputStream();
wb.write(out);
out.close();
wb.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}以上是“java如何导出excel”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
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