SpringMvc 使用poi导入导出Excel

controller <pre name="code" class="java">    @ResponseBody
@RequestMapping(value = "/chxm/exportAndUpdate")
public void exportAndUpdate(@RequestParam(value = "projectId") String projectId,
@RequestParam(value = "projectName") String  projectName,HttpServletResponse response){
chxmService.exportAndUpdate(projectId,projectName,response);
}

service

<pre name="code" class="java">@Override
public void exportAndUpdate(String projectId,String projectName,HttpServletResponse response) {
try{
response.setContentType("application/vnd.ms-excel;charset=utf-8");
OutputStream outputStream = response.getOutputStream();
String fileName = new String((projectName).getBytes(), "utf-8");
response.setHeader("Content-disposition", "attachment; filename=" + fileName + ".xlsx");// 组装附件名称和格式
response.setCharacterEncoding("utf-8");

// 准备excel文件内容
String[] zxxTitles = { "幢号","建筑物名称","楼栋西南角X坐标","楼栋西南角Y坐标","占地面积","建筑面积",
"基本用途","总层数","地上层数","地下层数","单元数","建筑结构", "特殊幢标识符","备注" };
List<TZxx> zxxs = zxxDao.findZxxByChxmId(Long.parseLong(projectId));
String[] cxxTitles = { "所属幢号", "实际层", "名义层","层建筑面积","层阳台面积","层共有建筑面积",
"层分摊建筑面积","层半墙面积","层高","备注","层图文件夹" };
List<TCxx> cxxs = cxxDao.findHxxByChxmId(Long.parseLong(projectId));
String[] hxxTitles = { "幢号","户编号", "单元", "户型结构","所在层（最低层）","所在层（最高层）","房屋用途",
"套内面积","分摊面积","建筑面积","地下部分建筑面积","其他建筑面积","分摊系数","房屋类型",
"房屋性质","设计用途","阳台数","封闭阳台数","非封闭式阳台","备注","房屋坐落","户型","户型图文件夹" };
List<THxx> hxxs = hxxDao.findHxxByChxmId(Long.parseLong(projectId));
String[] hcgTitles = { "幢号","户编号","层高","实际层","备注" };
List<THcg> hcgs = hcgDao.findHcgxxByChxmId(Long.parseLong(projectId));

// 创建一个workbook 对应一个excel应用文件
XSSFWorkbook workBook = new XSSFWorkbook();
this.export(workBook,"幢",zxxTitles,zxxs,TZxx.class);
this.export(workBook,"层",cxxTitles,cxxs,TCxx.class);
this.export(workBook,"户",hxxTitles,hxxs,THxx.class);
this.export(workBook,"户层高",hcgTitles,hcgs,THcg.class);
try{
workBook.write(outputStream);
outputStream.flush();
outputStream.close();
logger.info("项目"+fileName+"更正导出幢、层、户、户层高信息OK！");
}catch (IOException e){
logger.info("项目"+fileName+"更正导出幢、层、户、户层高信息error！");
}finally{
try
{
outputStream.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}catch (IOException e)
{
e.printStackTrace();
}
}

private void export(XSSFWorkbook workBook, String sheetName, String[] titles, List<?> list ,Class<?> class1) {

// 在workbook中添加一个sheet,对应Excel文件中的sheet
XSSFSheet sheet = workBook.createSheet(sheetName);

// 构建表头
XSSFRow headRow = sheet.createRow(0);

XSSFCell cell = null;
for (int i = 0; i < titles.length; i++)
{
cell = headRow.createCell(i);
cell.setCellValue(titles[i]);
sheet.setColumnWidth(i,titles[i].getBytes().length * 256);
}

// 构建表体数据
if (list != null && list.size() > 0)
{
if(class1.getName().equals(TZxx.class.getName())){
for (int j = 0; j < list.size(); j++){
XSSFRow bodyRow = sheet.createRow(j + 1);
TZxx zxx = (TZxx) list.get(j);
//幢号
cell = bodyRow.createCell(0);
cell.setCellValue(zxx.getZh_());
//建筑物名称
cell = bodyRow.createCell(1);
cell.setCellValue(zxx.getFcqmc());
//楼栋西南角X坐标
cell = bodyRow.createCell(2);
cell.setCellValue(zxx.getFxnjx());
//楼栋西南角Y坐标
cell = bodyRow.createCell(3);
cell.setCellValue(zxx.getFxnjy());
//占地面积
cell = bodyRow.createCell(4);
cell.setCellValue(zxx.getBzzdmj());
}
}else if (class1.getName().equals(TCxx.class.getName())) {
for (int j = 0; j < list.size(); j++){
XSSFRow bodyRow = sheet.createRow(j + 1);
TCxx cxx = (TCxx) list.get(j);

//所属幢号
cell = bodyRow.createCell(0);
cell.setCellValue(cxx.getZh_());
//实际层
cell = bodyRow.createCell(1);
cell.setCellValue(cxx.getSjc());
//名义层
cell = bodyRow.createCell(2);
cell.setCellValue(cxx.getMyc());
//层建筑面积
cell = bodyRow.createCell(3);
cell.setCellValue(cxx.getBcjzmj());
//层阳台面积
cell = bodyRow.createCell(4);
cell.setCellValue(cxx.getBcytmj());
//层共有建筑面积
cell = bodyRow.createCell(5);
cell.setCellValue(cxx.getBcgyjzmj());
<span style="white-space:pre">	</span>}
}else if(class1.getName().equals(THxx.class.getName())){
for (int j = 0; j < list.size(); j++){
XSSFRow bodyRow = sheet.createRow(j + 1);
THxx hxx = (THxx) list.get(j);

//幢号
cell = bodyRow.createCell(0);
cell.setCellValue(hxx.getZh_());
//户编号
cell = bodyRow.createCell(1);
cell.setCellValue(hxx.getHh());
//单元
cell = bodyRow.createCell(2);
cell.setCellValue(hxx.getDyh());
//户型结构
cell = bodyRow.createCell(3);
cell.setCellValue(hxx.getJg());
//所在层（最低层）
cell = bodyRow.createCell(4);
cell.setCellValue(hxx.getLayer());
//所在层（最高层）
cell = bodyRow.createCell(5);
cell.setCellValue(hxx.getToplayer());
}
}else if(class1.getName().equals(THcg.class.getName())){
for (int j = 0; j < list.size(); j++){
XSSFRow bodyRow = sheet.createRow(j + 1);
THcg hcg = (THcg) list.get(j);

//幢号
cell = bodyRow.createCell(0);
cell.setCellValue(hcg.getZh_());
//户编号
cell = bodyRow.createCell(1);
cell.setCellValue(hcg.getHh());
//层高
cell = bodyRow.createCell(2);
cell.setCellValue(hcg.getScg().toString());
//实际层
cell = bodyRow.createCell(3);
cell.setCellValue(hcg.getSjc());
//备注
cell = bodyRow.createCell(4);
cell.setCellValue(hcg.getBz());
}
}
}
}