流形式，导出excel报表
作者：互联网
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFDataFormat;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Map;
/**
* 导出excel工具类
*
* @Author: wzl
* @Date: 2021/2/19 17:49
**/
public class ExportExcelUtils {
private static Logger logger = LogManager.getLogger();
/**
* 导出excel
*
* @param response HttpServletResponse
* @param list 导出数据集合
* @param lables 表头数组
* @param fields key数组
* @param title 文件名
*/
public static void export(HttpServletResponse response,
List<Map<String, Object>> list,
String[] lables,
String[] fields,
String title) {
response.setContentType("application/octet-stream");//告诉浏览器输出内容为流
String filename = "";
try {
filename = new String(title.getBytes(StandardCharsets.UTF_8), "ISO_8859_1");
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
}
response.setHeader("Content-Disposition", "attachment;filename=" + filename);
OutputStream os = null;
SXSSFWorkbook sxssfWorkbook = null;
try {
// 获取SXSSFWorkbook
sxssfWorkbook = new SXSSFWorkbook();
Sheet sheet = sxssfWorkbook.createSheet("Sheet1");
// 冻结第一行
sheet.createFreezePane(0, 1);
// 创建第一行,作为header表头
Row header = sheet.createRow(0);
// 循环创建header单元格
for (int cellnum = 0; cellnum < lables.length; cellnum++) {
Cell cell = header.createCell(cellnum);
//cell.setCellStyle(getAndSetXSSFCellStyleHeader(sxssfWorkbook));//设置表头单元格样式,根据需要设置
cell.setCellValue(lables[cellnum]);
//设置每列固定宽度
sheet.setColumnWidth(cellnum, 14 * 256);
}
// 遍历创建行,导出数据
for (int rownum = 1; rownum <= list.size(); rownum++) {
Row row = sheet.createRow(rownum);
Map<String, Object> map = list.get(rownum - 1);
// 循环创建单元格
for (int cellnum = 0; cellnum < fields.length; cellnum++) {
Cell cell = row.createCell(cellnum);
//cell.setCellStyle(getAndSetXSSFCellStyleOne(sxssfWorkbook));//设置数据行单元格样式,根据需要设置
cell.setCellValue(map.get(fields[cellnum]) == null ? "" : map.get(fields[cellnum]).toString());
}
}
//自定义各列宽度
//setSheet(sheet);
os = response.getOutputStream();
sxssfWorkbook.write(os);
} catch (Exception e) {
logger.error("导出excel表格异常", e);
e.printStackTrace();
} finally {
try {
if (sxssfWorkbook != null) {
//处理SXSSFWorkbook导出excel时，产生的临时文件
sxssfWorkbook.dispose();
}
if (os != null) {
os.close();
}
} catch (Exception e) {
logger.error("关闭流异常", e);
e.printStackTrace();
}
}
}
/**
* 导出excel带标题
*
* @param response HttpServletResponse
* @param list 导出数据集合
* @param lables 表头数组
* @param fields key数组
* @param title 文件名
* @param headTitle 文件标题
*/
public static void titleExport(HttpServletResponse response,
List<Map<String, Object>> list,
String[] lables, String[] fields,
String title,
String headTitle) {
response.setContentType("application/octet-stream");//告诉浏览器输出内容为流
String filename = "";
try {
filename = new String(title.getBytes(StandardCharsets.UTF_8), "ISO_8859_1");
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
}
response.setHeader("Content-Disposition", "attachment;filename=" + filename);
OutputStream os = null;
SXSSFWorkbook sxssfWorkbook = null;
try {
// 获取SXSSFWorkbook
sxssfWorkbook = new SXSSFWorkbook();
Sheet sheet = sxssfWorkbook.createSheet("Sheet1");
// 创建第一行,作为标题
Row headline = sheet.createRow(0);
Cell c = headline.createCell(0);
//设置居中
XSSFCellStyle xssfCellStyle = (XSSFCellStyle) sxssfWorkbook.createCellStyle();
xssfCellStyle.setAlignment(HorizontalAlignment.CENTER);
c.setCellStyle(xssfCellStyle);
c.setCellValue(headTitle);
//合并单元格(起始行号,终止行号,起始列号,终止列号)
sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, lables.length - 1));
// 冻结第二行
sheet.createFreezePane(0, 2);
// 创建第二行,作为header表头
Row header = sheet.createRow(1);
// 循环创建header单元格
for (int cellnum = 0; cellnum < lables.length; cellnum++) {
Cell cell = header.createCell(cellnum);
//cell.setCellStyle(getAndSetXSSFCellStyleHeader(sxssfWorkbook));//设置表头单元格样式,根据需要设置
cell.setCellValue(lables[cellnum]);
//设置每列固定宽度
sheet.setColumnWidth(cellnum, 10 * 256);
}
// 遍历创建行,导出数据
for (int rownum = 1; rownum <= list.size(); rownum++) {
Row row = sheet.createRow(rownum + 1);
Map<String, Object> map = list.get(rownum - 1);
// 循环创建单元格
for (int cellnum = 0; cellnum < fields.length; cellnum++) {
Cell cell = row.createCell(cellnum);
//cell.setCellStyle(getAndSetXSSFCellStyleOne(sxssfWorkbook));//设置数据行单元格样式,根据需要设置
cell.setCellValue(map.get(fields[cellnum]) == null ? "" : map.get(fields[cellnum]).toString());
}
}
//自定义各列宽度
//setSheet(sheet);
os = response.getOutputStream();
sxssfWorkbook.write(os);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (sxssfWorkbook != null) {
//处理SXSSFWorkbook导出excel时，产生的临时文件
sxssfWorkbook.dispose();
}
if (os != null) {
os.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 导出excel(多个工作薄)
*
* @param response HttpServletResponse
* @param datas 导出数据集合
* @param title 文件名
*/
public static void exportSheets(HttpServletResponse response, List<Map<String, Object>> datas, String title) {
response.setContentType("application/octet-stream");//告诉浏览器输出内容为流
String filename = "";
try {
filename = new String(title.getBytes(StandardCharsets.UTF_8), "ISO_8859_1");
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
}
response.setHeader("Content-Disposition", "attachment;filename=" + filename);
OutputStream os = null;
SXSSFWorkbook sxssfWorkbook = null;
try {
// 获取SXSSFWorkbook
sxssfWorkbook = new SXSSFWorkbook();
// 根据集合的数量创建sheet
for (int i = 0; i < datas.size(); i++) {
Sheet sheet = sxssfWorkbook.createSheet("Sheet" + (i + 1));
// 冻结第一行
sheet.createFreezePane(0, 1);
// 创建第一行,作为header表头
Row header = sheet.createRow(0);
// 循环创建header单元格
String[] lables = (String[]) datas.get(i).get("lables");
String[] fields = (String[]) datas.get(i).get("fields");
for (int cellnum = 0; cellnum < lables.length; cellnum++) {
Cell cell = header.createCell(cellnum);
//cell.setCellStyle(getAndSetXSSFCellStyleHeader(sxssfWorkbook));//设置表头单元格样式,根据需要设置
cell.setCellValue(lables[cellnum]);
//设置每列固定宽度
sheet.setColumnWidth(cellnum, 20 * 256);
}
// 遍历创建行,导出数据
List<Map<String, Object>> list = (List<Map<String, Object>>) datas.get(i).get("list");
for (int rownum = 1; rownum <= list.size(); rownum++) {
Row row = sheet.createRow(rownum);
Map<String, Object> map = list.get(rownum - 1);
// 循环创建单元格
for (int cellnum = 0; cellnum < fields.length; cellnum++) {
Cell cell = row.createCell(cellnum);
//cell.setCellStyle(getAndSetXSSFCellStyleOne(sxssfWorkbook));//设置数据行单元格样式,根据需要设置
cell.setCellValue(map.get(fields[cellnum]) == null ? "" : map.get(fields[cellnum]).toString());
}
}
}
os = response.getOutputStream();
sxssfWorkbook.write(os);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (sxssfWorkbook != null) {
//处理SXSSFWorkbook导出excel时，产生的临时文件
sxssfWorkbook.dispose();
}
if (os != null) {
os.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 自定义各列宽度(单位为:字符宽度的1/256)
*/
private static void setSheet(Sheet sheet) {
sheet.setColumnWidth(0, 32 * 256);
sheet.setColumnWidth(1, 32 * 256);
sheet.setColumnWidth(2, 20 * 256);
sheet.setColumnWidth(3, 20 * 256);
sheet.setColumnWidth(4, 20 * 256);
sheet.setColumnWidth(5, 20 * 256);
sheet.setColumnWidth(6, 20 * 256);
sheet.setColumnWidth(7, 20 * 256);
sheet.setColumnWidth(8, 20 * 256);
sheet.setColumnWidth(9, 20 * 256);
sheet.setColumnWidth(10, 32 * 256);
}
/**
* 获取并设置header样式
*/
private static XSSFCellStyle getAndSetXSSFCellStyleHeader(SXSSFWorkbook sxssfWorkbook) {
XSSFCellStyle xssfCellStyle = (XSSFCellStyle) sxssfWorkbook.createCellStyle();
Font font = sxssfWorkbook.createFont();
// 字体大小
font.setFontHeightInPoints((short) 14);
// 字体粗细
font.setBoldweight((short) 20);
// 将字体应用到样式上面
xssfCellStyle.setFont(font);
// 是否自动换行
xssfCellStyle.setWrapText(false);
// 水平居中
xssfCellStyle.setAlignment(HorizontalAlignment.CENTER);
// 垂直居中
xssfCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
return xssfCellStyle;
}
/**
* 获取并设置样式
*/
private static XSSFCellStyle getAndSetXSSFCellStyleOne(SXSSFWorkbook sxssfWorkbook) {
XSSFCellStyle xssfCellStyle = (XSSFCellStyle) sxssfWorkbook.createCellStyle();
XSSFDataFormat format = (XSSFDataFormat) sxssfWorkbook.createDataFormat();
// 是否自动换行
xssfCellStyle.setWrapText(false);
// 水平居中
xssfCellStyle.setAlignment(HorizontalAlignment.CENTER);
// 垂直居中
xssfCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);
// 前景颜色
xssfCellStyle.setFillPattern(XSSFCellStyle.SOLID_FOREGROUND);
xssfCellStyle.setFillForegroundColor(IndexedColors.AQUA.getIndex());
// 边框
xssfCellStyle.setBorderBottom(BorderStyle.THIN);
xssfCellStyle.setBorderRight(BorderStyle.THIN);
xssfCellStyle.setBorderTop(BorderStyle.THIN);
xssfCellStyle.setBorderLeft(BorderStyle.THIN);
xssfCellStyle.setBottomBorderColor(IndexedColors.BLACK.getIndex());
xssfCellStyle.setRightBorderColor(IndexedColors.BLACK.getIndex());
xssfCellStyle.setTopBorderColor(IndexedColors.BLACK.getIndex());
xssfCellStyle.setLeftBorderColor(IndexedColors.BLACK.getIndex());
// 防止数字过长,excel导出后,显示为科学计数法,如:防止8615192053888被显示为8.61519E+12
xssfCellStyle.setDataFormat(format.getFormat("0"));
return xssfCellStyle;
}
}
调用方式：
/**
* 小区营业数据导出
*
* @param params
* @param response
* @return
*/
@RequiresPermissions("Business_Data_Export")
@RequestMapping(value = "/businessDataExport")
public String businessDataExport(BusinessDataExportParams params, HttpServletResponse response) {
logger.debug("营业数据导出开始时间：" + DateUtils.timeformat.format(new Date()));
//查询业务数据
//List<Map<String, Object>> list = chargeOrderServiceImpl.businessDataExport(params);
StatisticsParams statisticsParams = new StatisticsParams();
if (params.getOwnerId() != null) {
statisticsParams.setOwnerIds(params.getOwnerId());
}
if (params.getEstateId() != null) {
statisticsParams.setEstateIds(params.getEstateId());
}
statisticsParams.setDateRange(params.getDateRange());
statisticsParams.setIsExportQuery(1);
List<ChargeStatisticEvery> list = statisticEverySectionServiceImpl.statisticEveryGroupList(statisticsParams);
List<Map<String, Object>> dataList = ObjectConvertUtils.listConvert(list);
//表头数组
String[] lables = new String[]{"省", "市", "小区id", "小区名称", "营业额", "结算周期"};
//查询数据对应的属性数组
String[] fields = new String[]{"provinceName", "cityName", "estateId", "estateName", "payPrice", "dateRange"};
String title = params.getDateRange() + " 营业数据.xlsx";
ExportExcelUtils.export(response, dataList, lables, fields, title);
logger.debug("营业数据导出结束时间：" + DateUtils.timeformat.format(new Date()));
return null;
}
标签：cellnum,sheet,报表,xssfCellStyle,excel,导出,cell,sxssfWorkbook,String 来源： https://www.cnblogs.com/wzlxf/p/14435278.html