public ResponseEntity chartExport(HttpServletRequest request, String picinfo, HttpServletResponse response) {

//类型

String type = request.getParameter("type");

try {

//decodeBase64();

List dataList = JsonUtils.json2List(request.getParameter("mockTestNetTrendList"), MockTestNetTrend.class);

List cellList = JsonUtils.json2List(request.getParameter("cellList"), String.class);

// 生成图片

byte[] picInfoByte = base64TObyte(request, picinfo);

/* String picPath = "C:\\Users\\Administrator\\Desktop\\pic" + ".png";

File picFile = new File(picPath);//图片文件

OutputStream picStream = new FileOutputStream(picFile);//图片输出流

picStream.write(picInfoByte);

picStream.flush();

picStream.close();*/

String outFileName = FileNameUtil.createFileName("xls");

String exportFileName = type + ".xls";

//导出路径

String exportFilePath = CacheUtil.getSysParam(GlobalConstant.COM_PROP_ACCESS_EXPORTPATH);

// 模板输入流

Workbook wb = new HSSFWorkbook();

Sheet sheet = wb.createSheet();

int index = 1;

//创建表头

createHeader(wb, sheet,cellList);

//写入数据

if (!StringUtil.isEmptyList(dataList)) {

writeData(dataList, wb, sheet, index, type);

}

Drawing patri = sheet.createDrawingPatriarch();

HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0,

(short) 0, dataList.size() + 2, (short) 5, 25);

//图通过流的形式插入到excel模板中

ByteArrayOutputStream outStream = new ByteArrayOutputStream(); // 将图片写入流中

ByteArrayInputStream in = new ByteArrayInputStream(picInfoByte); //将picInfoByte作为输入流；

BufferedImage bufferImg = ImageIO.read(in); //将in作为输入流，读取图片存入image中，而这里in可以为ByteArrayInputStream();

ImageIO.write(bufferImg, "png", outStream); // 利用HSSFPatriarch将图片写入EXCEL

patri.createPicture(anchor, wb.addPicture(

outStream.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG));

File outFile = new File(exportFilePath + File.separator + outFileName);

if (!outFile.getParentFile().exists()) {

outFile.getParentFile().mkdirs();

}

wb.write(new FileOutputStream(outFile));

outStream.flush();

outStream.close();

/* if (picFile.exists()){

picFile.delete();

}*/

return ExportUtil.export(exportFileName, outFile, true);

} catch (Exception e) {

e.printStackTrace();

}

return null;

}