实现步骤
1. 生成文件名称
2.定义好导出模板 （也可在java中代码实现，可以创建表头，表头默认为第一行）
3.把模板塞入到工作簿中
4.查询数据 填充到excel中
5.创建输入流（把文件放入FileOutputStream管道中），在工作簿写入文件
6.释放资源（关闭管道）
代码实现如下
/**
* 描述 ：数据维护版本管理导出
*
*/
@FileProvider
public DownloadFile export(Map<String, Object> parameter) throws IOException, Exception{
List<BondDetailCarbodyNo> list = new ArrayList<BondDetailCarbodyNo>();
try {
logger.debug("export()-> ");
// 时间格式转换
SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String SystemDate=df.format(new Date());
//生成的文件名称
String fileName = "数据维护版本管理_"+SystemDate+".xlsx";
fileName=URLDecoder.decode(fileName, "UTF-8");
String tempPath =ExcelUtils.getTemplate()+"/template/unit/bondDetailCarbodyNo.xlsx";
InputStream instream = new FileInputStream(tempPath);
// 创建工作薄
XSSFWorkbook wb = new XSSFWorkbook(instream);
// 创建行
XSSFRow row = null;
// 创建列
XSSFCell cell =null;
// 正文样式
XSSFCellStyle textStyle =ExcelUtils.initStyleX(wb,"ONEHEAD_STYLE");
XSSFCellStyle cellStyle = wb.createCellStyle();
XSSFDataFormat format = wb.createDataFormat();
cellStyle.setDataFormat(format.getFormat("yyyy/m/d"));
cellStyle.setAlignment(CellStyle.ALIGN_CENTER);
cellStyle.setBorderBottom(CellStyle.BORDER_THIN); // 下边框
cellStyle.setBorderLeft(CellStyle.BORDER_THIN);// 左边框
cellStyle.setBorderTop(CellStyle.BORDER_THIN);// 上边框
cellStyle.setBorderRight(CellStyle.BORDER_THIN);// 右边框
// 获取第一个sheet页
XSSFSheet sheet = wb.getSheetAt(0);
int rowNo = 1;
//链接数据库获取数据
BondDetailCarbodyNoSearch search = new BondDetailCarbodyNoSearch();
search= parameterOrSearch(parameter);
//查询总条数
Long count= bondDetailCarbodyNoService.queryBondDetailCount(search);
Long low = (long)0;
if(count>0){
search.setCount(count);
//抽取数据次数
int pageNo=(int)(count/2000)+1;
for (int i = 1; i <= pageNo; i++) {
search.setPageSize(2000);
search.setPageIndex(i);
search.setLow(0);
search.setHigh(2000);
if(i>1){
search.setLow(MathUtil.multiply(new BigDecimal(2000),new BigDecimal(i-1)).longValue());
search.setHigh(MathUtil.multiply(new BigDecimal(2000),new BigDecimal(i)).longValue());
}
list = bondDetailCarbodyNoService.queryBondDetail(search);
/* 向单元格里填充获取到的数据
* rowNo 第几行
* cellNo 第几列
*
*/
if (list.size()>0) {
for (BondDetailCarbodyNo bondDetailCarbodyNos : list) {
row = sheet.createRow(rowNo);
// 法人
cell = row.createCell(0);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getCorp())){
Branch branch = new Branch();
branch.setCode(bondDetailCarbodyNos.getCorp());
branch.setRepFlag("1");
branch = branchService.getByBizKey(branch);
if (branch != null) {
cell.setCellValue(branch.getSname());
}else {
cell.setCellValue(bondDetailCarbodyNos.getCorp());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 车号
cell = row.createCell(1);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getMachineSerialNo())){
cell.setCellValue(bondDetailCarbodyNos.getMachineSerialNo());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 用户名
cell = row.createCell(2);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getUseName())){
cell.setCellValue(bondDetailCarbodyNos.getUseName());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 经销商
cell = row.createCell(3);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getDbCode())){
Branch branch = new Branch();
branch.setCode(bondDetailCarbodyNos.getDbCode());
branch.setRepFlag("0");
branch.setType("1");//经销商
branch = branchService.getByBizKey(branch);
if (branch != null) {
cell.setCellValue(branch.getSname());
}else {
cell.setCellValue(bondDetailCarbodyNos.getDbCode());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 等级
cell = row.createCell(4);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getGrade())){
cell.setCellValue(bondDetailCarbodyNos.getGrade());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 销售方式
cell = row.createCell(5);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getSaleType())){
Code code = new Code();// 数字字典
code.setCodeId("CAUSE_SALE_TYPE");
code.setCode(bondDetailCarbodyNos.getSaleType());
code = codeService.getByBizKey(code);
if (code != null) {
cell.setCellValue(code.getCodeNameC());
}else {
cell.setCellValue(bondDetailCarbodyNos.getSaleType());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 债权分类
cell = row.createCell(6);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getBondType())){
Code code = new Code();// 数字字典
code.setCodeId("UNIT_BOND_DETAIL_TYPE");
code.setCode(bondDetailCarbodyNos.getBondType());
code = codeService.getByBizKey(code);
if (code != null) {
cell.setCellValue(code.getCodeNameC());
}else {
cell.setCellValue(bondDetailCarbodyNos.getBondType());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//债权生成日期
cell = row.createCell(7);
if(bondDetailCarbodyNos.getBondDate() != null){
cell.setCellValue(bondDetailCarbodyNos.getBondDate());
}else{
cell.setCellValue("");
}
cell.setCellStyle(cellStyle);
// 首次出库日期
cell = row.createCell(8);
if(bondDetailCarbodyNos.getOutStoreDate() != null){
cell.setCellValue(bondDetailCarbodyNos.getOutStoreDate());
}else{
cell.setCellValue("");
}
cell.setCellStyle(cellStyle);
//年份
cell = row.createCell(9);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getYears())){
cell.setCellValue(bondDetailCarbodyNos.getYears());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 最近收款日
cell = row.createCell(10);
if(bondDetailCarbodyNos.getReceiveDate() != null){
cell.setCellValue(bondDetailCarbodyNos.getReceiveDate());
}else{
cell.setCellValue("");
}
cell.setCellStyle(cellStyle);
// 债权到期日
cell = row.createCell(11);
if(bondDetailCarbodyNos.getBondDueDate() != null){
cell.setCellValue(bondDetailCarbodyNos.getBondDueDate());
}else{
cell.setCellValue("");
}
cell.setCellStyle(cellStyle);
//剩余期数
cell = row.createCell(12);
if(bondDetailCarbodyNos.getNper()!= null){
cell.setCellValue(bondDetailCarbodyNos.getNper());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//剩余期数
cell = row.createCell(13);
if(bondDetailCarbodyNos.getOverdueNumber()!= null){
cell.setCellValue(bondDetailCarbodyNos.getOverdueNumber().intValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//当月本金
cell = row.createCell(14);
if(bondDetailCarbodyNos.getPrincipal() != null){
cell.setCellValue(bondDetailCarbodyNos.getPrincipal().doubleValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
// 债权总额
cell = row.createCell(15);
if(bondDetailCarbodyNos.getBondAmt() != null){
cell.setCellValue(bondDetailCarbodyNos.getBondAmt().doubleValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//逾期余额
cell = row.createCell(16);
if(bondDetailCarbodyNos.getOverdueBalance() != null){
cell.setCellValue(bondDetailCarbodyNos.getOverdueBalance().doubleValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//逾期本金
cell = row.createCell(17);
if(bondDetailCarbodyNos.getOverduePrincipal() != null){
cell.setCellValue(bondDetailCarbodyNos.getOverduePrincipal().doubleValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//实际逾期
cell = row.createCell(18);
if(bondDetailCarbodyNos.getOverdueAmt() != null){
cell.setCellValue(bondDetailCarbodyNos.getOverdueAmt().doubleValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//管理逾期
cell = row.createCell(19);
if(bondDetailCarbodyNos.getManageOverdue() != null){
cell.setCellValue(bondDetailCarbodyNos.getManageOverdue().doubleValue());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//风控等级
cell = row.createCell(20);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getRiskGrade())){
cell.setCellValue(bondDetailCarbodyNos.getRiskGrade());
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//经销商属性
cell = row.createCell(21);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getDbProperty())){
Code code = new Code();// 数字字典
code.setCodeId("NORMAL_STATUS");
code.setCode(bondDetailCarbodyNos.getDbProperty());
code = codeService.getByBizKey(code);
if (code != null) {
cell.setCellValue(code.getCodeNameC());
}else {
cell.setCellValue(bondDetailCarbodyNos.getDbProperty());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//设备分类
cell = row.createCell(22);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getEquipment())){
Code code = new Code();// 数字字典
code.setCodeId("MODEL_TYPE");
code.setCode(bondDetailCarbodyNos.getEquipment());
code = codeService.getByBizKey(code);
if (code != null) {
cell.setCellValue(code.getCodeNameC());
}else {
cell.setCellValue(bondDetailCarbodyNos.getEquipment());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//债权区分
cell = row.createCell(23);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getBondType())){
Code code = new Code();// 数字字典
code.setCodeId("UNIT_BOND_DETAIL_TYPE");
code.setCode(bondDetailCarbodyNos.getBondType());
code = codeService.getByBizKey(code);
if (code != null) {
cell.setCellValue(code.getCodeNameC());
}else {
cell.setCellValue(bondDetailCarbodyNos.getBondType());
}
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
//版本
cell = row.createCell(24);
if(StringUtils.isNotBlank(bondDetailCarbodyNos.getStatus())){
cell.setCellValue(bondDetailCarbodyNos.getStatus()=="1"?"提交版":"草稿版");
}else{
cell.setCellValue("");
}
cell.setCellStyle(textStyle);
rowNo++;
}
}
}
//写入文件
FileOutputStream out = new FileOutputStream(getDestPath("unit")+"/"+fileName);
wb.write(out);
out.close();
DownloadFile files = getDownloadFile(fileName);
return files;
}else{
//如果没有获取到数据返回空模板
FileOutputStream out = new FileOutputStream(getDestPath("unit")+"/"+fileName);
wb.write(out);
out.close();
DownloadFile files = getDownloadFile(fileName);
return files;
}
}catch (Exception e) {
logger.error("export() - ", e);
ExceptionUtil.throwex(e,"");
}
return null;2.设置表头正文格式代码如下
/**
* EXCEL样式
* xlsx
* initType:
* 标题 :TITLE_STYLE
* 一级表头：ONEHEAD_STYLE
* 二级表头：TOWHEAD_STYLE
* 正文：TEXT_STYLE
* @param workbook initType
*/
public static XSSFCellStyle initStyleX(XSSFWorkbook workbook,String initType){
XSSFCellStyle customStyle = workbook.createCellStyle();
if(initType.equals("ZHU_STYLE")){
customStyle.setAlignment(CellStyle.ALIGN_LEFT);
XSSFFont zhuFont = workbook.createFont();
zhuFont.setFontHeightInPoints((short) 12);// 字体大小
zhuFont.setColor(HSSFColor.RED.index);
customStyle.setFont(zhuFont);
// 标题
}else if(initType.equals("TITLE_STYLE")){
customStyle.setAlignment(CellStyle.ALIGN_CENTER);
XSSFFont titlFont = workbook.createFont();
titlFont.setFontHeightInPoints((short) 20);// 行高
titlFont.setFontHeightInPoints((short) 16);// 字体大小
customStyle.setFont(titlFont);
// 一级表头
}else if(initType.equals("ONEHEAD_STYLE")){
customStyle.setAlignment(CellStyle.ALIGN_LEFT);
XSSFFont headerFont = workbook.createFont();
headerFont.setFontHeightInPoints((short) 12);// 字体大小
customStyle.setFont(headerFont);
// 二级表头
}else if(initType.equals("TOWHEAD_STYLE")){
customStyle.setFillBackgroundColor(HSSFColor.AQUA.index);
customStyle.setAlignment(CellStyle.ALIGN_CENTER);
XSSFFont headerFont = workbook.createFont();
headerFont.setFontHeightInPoints((short) 12);// 行高
headerFont.setFontHeightInPoints((short) 12);// 字体大小
customStyle.setFont(headerFont);
customStyle.setFont(headerFont);// 粗体
customStyle.setFillPattern(CellStyle.SOLID_FOREGROUND);
customStyle.setFillForegroundColor(IndexedColors.PALE_BLUE.getIndex());// 背景色
customStyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER);//垂直居中
}
// 正文
if(initType.equals("TOWHEAD_STYLE") || initType.equals("TEXT_STYLE") || initType.equals("ONEHEAD_STYLE")){
customStyle.setAlignment(CellStyle.ALIGN_CENTER);
customStyle.setBorderBottom(CellStyle.BORDER_THIN); // 下边框
customStyle.setBorderLeft(CellStyle.BORDER_THIN);// 左边框
customStyle.setBorderTop(CellStyle.BORDER_THIN);// 上边框
customStyle.setBorderRight(CellStyle.BORDER_THIN);// 右边框
}
return customStyle;
}
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