excel弹出框导出

@RequestMapping(value="/downloadReport")
public String download(HttpServletRequest request,HttpServletResponse response) throws IOException{
String flag = request.getParameter("flag");
String fileName=("1".equals(flag))?"城市数据统计":"行政区数据统计";
fileName=fileName+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
//填充数据
ByteArrayOutputStream os = new ByteArrayOutputStream();
if("1".equals(flag)){
List<HouseData> listSalesReportVo= houseDataService.getCityList();
List<Map<String,Object>> list =createExcelRecord(listSalesReportVo);
String columnNames[]={"统计类型","城市id","城市名","数据","创建时间"};//列名
String keys[] = {"type","cityId","cityName","data","createTime"};//map中的key
try {
CommonUtils.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
}else{
List<HouseData> listSalesReportVo= houseDataService.getAllCityList();
List<Map<String,Object>> list =createExcelRecord2(listSalesReportVo);
String columnNames[]={"统计类型","城市id","城市名","行政区id","行政区名","数据","创建时间"};//列名
String keys[] = {"type","cityId","cityName","districtId","districtName","data","createTime"};//map中的key
try {
CommonUtils.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数，可以打开下载页面
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename="+ new String((fileName + ".xls").getBytes(), "iso-8859-1"));
ServletOutputStream out = response.getOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
// Simple read/write loop.
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (final IOException e) {
throw e;
} finally {
if (bis != null)
bis.close();
if (bos != null)
bos.close();
}
return null;
}
private List<Map<String, Object>> createExcelRecord(List<HouseData> listSalesReport) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "数据统计");
listmap.add(map);
HouseData salesReport=null;
for (int j = 0; j < listSalesReport.size(); j++) {
salesReport=listSalesReport.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
mapValue.put("type", salesReport.getType());
mapValue.put("cityId", salesReport.getCityId());
mapValue.put("cityName", salesReport.getCityName());
mapValue.put("data", salesReport.getData());
mapValue.put("createTime", new SimpleDateFormat("yyyy/MM/dd").format(salesReport.getCreateTime()));
listmap.add(mapValue);
}
return listmap;
}
private List<Map<String, Object>> createExcelRecord2(List<HouseData> listSalesReport) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "数据统计");
listmap.add(map);
HouseData salesReport=null;
for (int j = 0; j < listSalesReport.size(); j++) {
salesReport=listSalesReport.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
mapValue.put("type", salesReport.getType());
mapValue.put("cityId", salesReport.getCityId());
mapValue.put("cityName", salesReport.getCityName());
mapValue.put("districtId", salesReport.getDistrictId());
mapValue.put("districtName", salesReport.getDistrictName());
mapValue.put("data", salesReport.getData());
mapValue.put("createTime", new SimpleDateFormat("yyyy/MM/dd").format(salesReport.getCreateTime()));
listmap.add(mapValue);
}
return listmap;
}

@RequestMapping(value="/downloadReport")
public String download(HttpServletRequest request,HttpServletResponse response) throws IOException{
String flag = request.getParameter("flag");
String fileName=("1".equals(flag))?"城市数据统计":"行政区数据统计";
fileName=fileName+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());
//填充数据
ByteArrayOutputStream os = new ByteArrayOutputStream();
if("1".equals(flag)){
List<HouseData> listSalesReportVo= houseDataService.getCityList();
List<Map<String,Object>> list =createExcelRecord(listSalesReportVo);
String columnNames[]={"统计类型","城市id","城市名","数据","创建时间"};//列名
String keys[] = {"type","cityId","cityName","data","createTime"};//map中的key
try {
CommonUtils.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
}else{
List<HouseData> listSalesReportVo= houseDataService.getAllCityList();
List<Map<String,Object>> list =createExcelRecord2(listSalesReportVo);
String columnNames[]={"统计类型","城市id","城市名","行政区id","行政区名","数据","创建时间"};//列名
String keys[] = {"type","cityId","cityName","districtId","districtName","data","createTime"};//map中的key
try {
CommonUtils.createWorkBook(list,keys,columnNames).write(os);
} catch (IOException e) {
e.printStackTrace();
}
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数，可以打开下载页面
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename="+ new String((fileName + ".xls").getBytes(), "iso-8859-1"));
ServletOutputStream out = response.getOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
// Simple read/write loop.
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (final IOException e) {
throw e;
} finally {
if (bis != null)
bis.close();
if (bos != null)
bos.close();
}
return null;
}
private List<Map<String, Object>> createExcelRecord(List<HouseData> listSalesReport) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "数据统计");
listmap.add(map);
HouseData salesReport=null;
for (int j = 0; j < listSalesReport.size(); j++) {
salesReport=listSalesReport.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
mapValue.put("type", salesReport.getType());
mapValue.put("cityId", salesReport.getCityId());
mapValue.put("cityName", salesReport.getCityName());
mapValue.put("data", salesReport.getData());
mapValue.put("createTime", new SimpleDateFormat("yyyy/MM/dd").format(salesReport.getCreateTime()));
listmap.add(mapValue);
}
return listmap;
}
private List<Map<String, Object>> createExcelRecord2(List<HouseData> listSalesReport) {
List<Map<String, Object>> listmap = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("sheetName", "数据统计");
listmap.add(map);
HouseData salesReport=null;
for (int j = 0; j < listSalesReport.size(); j++) {
salesReport=listSalesReport.get(j);
Map<String, Object> mapValue = new HashMap<String, Object>();
mapValue.put("type", salesReport.getType());
mapValue.put("cityId", salesReport.getCityId());
mapValue.put("cityName", salesReport.getCityName());
mapValue.put("districtId", salesReport.getDistrictId());
mapValue.put("districtName", salesReport.getDistrictName());
mapValue.put("data", salesReport.getData());
mapValue.put("createTime", new SimpleDateFormat("yyyy/MM/dd").format(salesReport.getCreateTime()));
listmap.add(mapValue);
}
return listmap;
}

/**
* poi创建excel文档，
* @param keys list中map的key数组集合
* @param columnNames excel的列名
* */
public static Workbook createWorkBook(List<Map<String, Object>> list,String []keys,String columnNames[]) {
// 创建excel工作簿
Workbook wb = new HSSFWorkbook();
// 创建第一个sheet（页），并命名
Sheet sheet = wb.createSheet(list.get(0).get("sheetName").toString());
// 手动设置列宽。第一个参数表示要为第几列设；，第二个参数表示列的宽度，n为列高的像素数。
for(int i=0;i<keys.length;i++){
sheet.setColumnWidth((short) i, (short) (35.7 * 150));
}

// 创建第一行
Row row = sheet.createRow((short) 0);

// 创建两种单元格格式
CellStyle cs = wb.createCellStyle();
CellStyle cs2 = wb.createCellStyle();

// 创建两种字体
Font f = wb.createFont();
Font f2 = wb.createFont();

// 创建第一种字体样式（用于列名）
f.setFontHeightInPoints((short) 10);
f.setColor(IndexedColors.BLACK.getIndex());
f.setBoldweight(Font.BOLDWEIGHT_BOLD);

// 创建第二种字体样式（用于值）
f2.setFontHeightInPoints((short) 10);
f2.setColor(IndexedColors.BLACK.getIndex());

// Font f3=wb.createFont();
// f3.setFontHeightInPoints((short) 10);
// f3.setColor(IndexedColors.RED.getIndex());

// 设置第一种单元格的样式（用于列名）
cs.setFont(f);
cs.setBorderLeft(CellStyle.BORDER_THIN);
cs.setBorderRight(CellStyle.BORDER_THIN);
cs.setBorderTop(CellStyle.BORDER_THIN);
cs.setBorderBottom(CellStyle.BORDER_THIN);
cs.setAlignment(CellStyle.ALIGN_CENTER);

// 设置第二种单元格的样式（用于值）
cs2.setFont(f2);
cs2.setBorderLeft(CellStyle.BORDER_THIN);
cs2.setBorderRight(CellStyle.BORDER_THIN);
cs2.setBorderTop(CellStyle.BORDER_THIN);
cs2.setBorderBottom(CellStyle.BORDER_THIN);
cs2.setAlignment(CellStyle.ALIGN_CENTER);
//设置列名
for(int i=0;i<columnNames.length;i++){
Cell cell = row.createCell(i);
cell.setCellValue(columnNames[i]);
cell.setCellStyle(cs);
}
//设置每行每列的值
for (short i = 1; i < list.size(); i++) {
// Row 行,Cell 方格 , Row 和 Cell 都是从0开始计数的
// 创建一行，在页sheet上
Row row1 = sheet.createRow((short) i);
// 在row行上创建一个方格
for(short j=0;j<keys.length;j++){
Cell cell = row1.createCell(j);
cell.setCellValue(list.get(i).get(keys[j]) == null?" ": list.get(i).get(keys[j]).toString());
cell.setCellStyle(cs2);
}
}
return wb;
}

/**
* 创建excel文档，
* @param keys list中map的key数组集合
* @param columnNames excel的列名
* */
public static Workbook createWorkBook(List<Map<String, Object>> list,String []keys,String columnNames[]) {
// 创建excel工作簿
Workbook wb = new HSSFWorkbook();
// 创建第一个sheet（页），并命名
Sheet sheet = wb.createSheet(list.get(0).get("sheetName").toString());
// 手动设置列宽。第一个参数表示要为第几列设；，第二个参数表示列的宽度，n为列高的像素数。
for(int i=0;i<keys.length;i++){
sheet.setColumnWidth((short) i, (short) (35.7 * 150));
}

// 创建第一行
Row row = sheet.createRow((short) 0);

// 创建两种单元格格式
CellStyle cs = wb.createCellStyle();
CellStyle cs2 = wb.createCellStyle();

// 创建两种字体
Font f = wb.createFont();
Font f2 = wb.createFont();

// 创建第一种字体样式（用于列名）
f.setFontHeightInPoints((short) 10);
f.setColor(IndexedColors.BLACK.getIndex());
f.setBoldweight(Font.BOLDWEIGHT_BOLD);

// 创建第二种字体样式（用于值）
f2.setFontHeightInPoints((short) 10);
f2.setColor(IndexedColors.BLACK.getIndex());

// Font f3=wb.createFont();
// f3.setFontHeightInPoints((short) 10);
// f3.setColor(IndexedColors.RED.getIndex());

// 设置第一种单元格的样式（用于列名）
cs.setFont(f);
cs.setBorderLeft(CellStyle.BORDER_THIN);
cs.setBorderRight(CellStyle.BORDER_THIN);
cs.setBorderTop(CellStyle.BORDER_THIN);
cs.setBorderBottom(CellStyle.BORDER_THIN);
cs.setAlignment(CellStyle.ALIGN_CENTER);

// 设置第二种单元格的样式（用于值）
cs2.setFont(f2);
cs2.setBorderLeft(CellStyle.BORDER_THIN);
cs2.setBorderRight(CellStyle.BORDER_THIN);
cs2.setBorderTop(CellStyle.BORDER_THIN);
cs2.setBorderBottom(CellStyle.BORDER_THIN);
cs2.setAlignment(CellStyle.ALIGN_CENTER);
//设置列名
for(int i=0;i<columnNames.length;i++){
Cell cell = row.createCell(i);
cell.setCellValue(columnNames[i]);
cell.setCellStyle(cs);
}
//设置每行每列的值
for (short i = 1; i < list.size(); i++) {
// Row 行,Cell 方格 , Row 和 Cell 都是从0开始计数的
// 创建一行，在页sheet上
Row row1 = sheet.createRow((short) i);
// 在row行上创建一个方格
for(short j=0;j<keys.length;j++){
Cell cell = row1.createCell(j);
cell.setCellValue(list.get(i).get(keys[j]) == null?" ": list.get(i).get(keys[j]).toString());
cell.setCellStyle(cs2);
}
}
return wb;
}