目录
代码:https://gitee.com/typ1805/springboot-master
POI操作Excel
一、poi简介
Apache POI是Apache软件基金会的开放源码函式库,POI提供API给Java程序对Microsoft Office格式档案读和写的功能。
1、HSSF:HSSF 是Horrible SpreadSheet Format的缩写,通过HSSF,你可以用纯Java代码来读取、写入、修改Excel文件。HSSF 为读取操作提供了两类API:usermodel和eventusermodel,即“用户模型”和“事件-用户模型”。
2、POI EXCEL文档结构类
- HSSFWorkbook excel文档对象
- HSSFSheet excel的sheet HSSFRow excel的行
- HSSFCell excel的单元格 HSSFFont excel字体
- HSSFName 名称 HSSFDataFormat 日期格式
- HSSFHeader sheet头
- HSSFFooter sheet尾
- HSSFCellStyle cell样式
- HSSFDateUtil 日期
- HSSFPrintSetup 打印
- HSSFErrorConstants 错误信息表
3、导入Excel常用的方法:
- POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(“d:/test.xls”));
- HSSFWorkbook wb = new HSSFWorkbook(fs); //得到Excel工作簿对象
- HSSFSheet sheet = wb.getSheetAt(0); //得到Excel工作表对象
- HSSFRow row = sheet.getRow(i); //得到Excel工作表的行
- HSSFCell cell = row.getCell((short) j); //得到Excel工作表指定行的单元格
- cellStyle = cell.getCellStyle(); //得到单元格样式
4、导出Excel常用的方法:
- HSSFWorkbook wb = new HSSFWorkbook(); //创建Excel工作簿对象
- HSSFSheet sheet = wb.createSheet(“new sheet”); //创建Excel工作表对象
- HSSFRow row = sheet.createRow((short)0); //创建Excel工作表的行
- cellStyle = wb.createCellStyle(); //创建单元格样式
- row.createCell((short)0).setCellStyle(cellStyle); //创建Excel工作表指定行的单元格
- row.createCell((short)0).setCellValue(1); //设置Excel工作表的值
二、springboot整合poi
主要是springboot+myBatis+poi+mysql的简单应用,从数据库查询到结果集导出excel到本地,从本地中的excel文件导入到数据库表中。
1、添加依赖
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>RELEASE</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>RELEASE</version>
</dependency>
2、创建一个ExcelUtil类,这里的实现比较简单
package com.example.demo.utils;
import com.example.demo.entity.ExcelData;
import com.example.demo.entity.User;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import static org.apache.poi.ss.usermodel.CellType.*;
/**
* 路径:com.example.demo.utils
* 类名:
* 功能:导入导出
* 备注:
* 创建人:typ
* 创建时间:2018/10/19 11:21
* 修改人:
* 修改备注:
* 修改时间:
*/
@Slf4j
public class ExcelUtil {
/**
* 方法名:exportExcel
* 功能:导出Excel
* 描述:
* 创建人:typ
* 创建时间:2018/10/19 16:00
* 修改人:
* 修改描述:
* 修改时间:
*/
public static void exportExcel(HttpServletResponse response, ExcelData data) {
log.info("导出解析开始,fileName:{}",data.getFileName());
try {
//实例化HSSFWorkbook
HSSFWorkbook workbook = new HSSFWorkbook();
//创建一个Excel表单,参数为sheet的名字
HSSFSheet sheet = workbook.createSheet("sheet");
//设置表头
setTitle(workbook, sheet, data.getHead());
//设置单元格并赋值
setData(sheet, data.getData());
//设置浏览器下载
setBrowser(response, workbook, data.getFileName());
log.info("导出解析成功!");
} catch (Exception e) {
log.info("导出解析失败!");
e.printStackTrace();
}
}
/**
* 方法名:setTitle
* 功能:设置表头
* 描述:
* 创建人:typ
* 创建时间:2018/10/19 10:20
* 修改人:
* 修改描述:
* 修改时间:
*/
private static void setTitle(HSSFWorkbook workbook, HSSFSheet sheet, String[] str) {
try {
HSSFRow row = sheet.createRow(0);
//设置列宽,setColumnWidth的第二个参数要乘以256,这个参数的单位是1/256个字符宽度
for (int i = 0; i <= str.length; i++) {
sheet.setColumnWidth(i, 15 * 256);
}
//设置为居中加粗,格式化时间格式
HSSFCellStyle style = workbook.createCellStyle();
HSSFFont font = workbook.createFont();
font.setBold(true);
style.setFont(font);
style.setDataFormat(HSSFDataFormat.getBuiltinFormat("m/d/yy h:mm"));
//创建表头名称
HSSFCell cell;
for (int j = 0; j < str.length; j++) {
cell = row.createCell(j);
cell.setCellValue(str[j]);
cell.setCellStyle(style);
}
} catch (Exception e) {
log.info("导出时设置表头失败!");
e.printStackTrace();
}
}
/**
* 方法名:setData
* 功能:表格赋值
* 描述:
* 创建人:typ
* 创建时间:2018/10/19 16:11
* 修改人:
* 修改描述:
* 修改时间:
*/
private static void setData(HSSFSheet sheet, List<String[]> data) {
try{
int rowNum = 1;
for (int i = 0; i < data.size(); i++) {
HSSFRow row = sheet.createRow(rowNum);
for (int j = 0; j < data.get(i).length; j++) {
row.createCell(j).setCellValue(data.get(i)[j]);
}
rowNum++;
}
log.info("表格赋值成功!");
}catch (Exception e){
log.info("表格赋值失败!");
e.printStackTrace();
}
}
/**
* 方法名:setBrowser
* 功能:使用浏览器下载
* 描述:
* 创建人:typ
* 创建时间:2018/10/19 16:20
* 修改人:
* 修改描述:
* 修改时间:
*/
private static void setBrowser(HttpServletResponse response, HSSFWorkbook workbook, String fileName) {
try {
//清空response
response.reset();
//设置response的Header
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
OutputStream os = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/vnd.ms-excel;charset=gb2312");
//将excel写入到输出流中
workbook.write(os);
os.flush();
os.close();
log.info("设置浏览器下载成功!");
} catch (Exception e) {
log.info("设置浏览器下载失败!");
e.printStackTrace();
}
}
/**
* 方法名:importExcel
* 功能:导入
* 描述:
* 创建人:typ
* 创建时间:2018/10/19 11:45
* 修改人:
* 修改描述:
* 修改时间:
*/
public static List<Object[]> importExcel(String fileName) {
log.info("导入解析开始,fileName:{}",fileName);
try {
List<Object[]> list = new ArrayList<>();
InputStream inputStream = new FileInputStream(fileName);
Workbook workbook = WorkbookFactory.create(inputStream);
Sheet sheet = workbook.getSheetAt(0);
//获取sheet的行数
int rows = sheet.getPhysicalNumberOfRows();
for (int i = 0; i < rows; i++) {
//过滤表头行
if (i == 0) {
continue;
}
//获取当前行的数据
Row row = sheet.getRow(i);
Object[] objects = new Object[row.getPhysicalNumberOfCells()];
int index = 0;
for (Cell cell : row) {
if (cell.getCellType().equals(NUMERIC)) {
objects[index] = (int) cell.getNumericCellValue();
}
if (cell.getCellType().equals(STRING)) {
objects[index] = cell.getStringCellValue();
}
if (cell.getCellType().equals(BOOLEAN)) {
objects[index] = cell.getBooleanCellValue();
}
if (cell.getCellType().equals(ERROR)) {
objects[index] = cell.getErrorCellValue();
}
index++;
}
list.add(objects);
}
log.info("导入文件解析成功!");
return list;
}catch (Exception e){
log.info("导入文件解析失败!");
e.printStackTrace();
}
return null;
}
//测试导入
public static void main(String[] args) {
try {
String fileName = "f:/test.xlsx";
List<Object[]> list = importExcel(fileName);
for (int i = 0; i < list.size(); i++) {
User user = new User();
user.setId((Integer) list.get(i)[0]);
user.setUsername((String) list.get(i)[1]);
user.setPassword((String) list.get(i)[2]);
user.setEnable((Integer) list.get(i)[3]);
System.out.println(user.toString());
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
具体业务代码在此不赘述,完整代码:https://download.csdn.net/download/typ1805/10737617
三、poi API简述
1、设置sheet名称和单元格内容
workbook.setSheetName(1, "工作表",HSSFCell.ENCODING_UTF_16);
cell.setEncoding((short) 1);
cell.setCellValue("单元格内容");
2、取得sheet的数目
workbook.getNumberOfSheets()
3、根据index取得sheet对象
HSSFSheet sheet = wb.getSheetAt(0);
4、取得有效的行数
int rowcount = sheet.getLastRowNum();
row.getLastCellNum();
6、单元格值类型读写
cell.setCellType(HSSFCell.CELL_TYPE_STRING); //设置单元格为STRING类型
cell.getNumericCellValue();//读取为数值类型的单元格内容
7、设置列宽、行高
sheet.setColumnWidth((short)column,(short)width);
row.setHeight((short)height);
8、添加区域,合并单元格
// 合并从第rowFrom行columnFrom列
Region region = new Region((short)rowFrom,(short)columnFrom,(short)rowTo(short)columnTo);
// 到rowTo行columnTo的区域
sheet.addMergedRegion(region);
// 得到所有区域
sheet.getNumMergedRegions()
9、保存Excel文件
FileOutputStream fileOut = new FileOutputStream(path);
wb.write(fileOut);
10、根据单元格不同属性返回字符串数值
public String getCellStringValue(HSSFCell cell) {
String cellValue = "";
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_STRING://字符串类型
cellValue = cell.getStringCellValue();
if(cellValue.trim().equals("")||cellValue.trim().length()<=0)
cellValue=" ";
break;
case HSSFCell.CELL_TYPE_NUMERIC: //数值类型
cellValue = String.valueOf(cell.getNumericCellValue());
break;
case HSSFCell.CELL_TYPE_FORMULA: //公式
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
cellValue = String.valueOf(cell.getNumericCellValue());
break;
case HSSFCell.CELL_TYPE_BLANK:
cellValue=" ";
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
break;
case HSSFCell.CELL_TYPE_ERROR:
break;
default:
break;
}
return cellValue;
}
11、常用单元格边框格式
HSSFCellStyle style = wb.createCellStyle();
style.setBorderBottom(HSSFCellStyle.BORDER_DOTTED);//下边框
style.setBorderLeft(HSSFCellStyle.BORDER_DOTTED);//左边框
style.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
style.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
12、设置字体和内容位置
HSSFFont f = wb.createFont();
f.setFontHeightInPoints((short) 11);//字号
f.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);//加粗
style.setFont(f);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);//左右居中
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//上下居中
style.setRotation(short rotation);//单元格内容的旋转的角度
HSSFDataFormat df = wb.createDataFormat();
style1.setDataFormat(df.getFormat("0.00%"));//设置单元格数据格式
cell.setCellFormula(string);//给单元格设公式
style.setRotation(short rotation);//单元格内容的旋转的角度
13、插入图片
//先把读进来的图片放到一个ByteArrayOutputStream中,以便产生ByteArray
ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
BufferedImage bufferImg = ImageIO.read(new File("ok.jpg"));
ImageIO.write(bufferImg,"jpg",byteArrayOut);
//读进一个excel模版
FileInputStream fos = new FileInputStream(filePathName+"/stencil.xlt");
fs = new POIFSFileSystem(fos);
//创建一个工作薄
HSSFWorkbook wb = new HSSFWorkbook(fs);
HSSFSheet sheet = wb.getSheetAt(0);
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
HSSFClientAnchor anchor = new HSSFClientAnchor(0,0,1023,255,(short) 0,0,(short)10,10);
patriarch.createPicture(anchor , wb.addPicture(byteArrayOut.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));
14、调整工作表位置
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("format sheet");
HSSFPrintSetup ps = sheet.getPrintSetup();
sheet.setAutobreaks(true);
ps.setFitHeight((short)1);
ps.setFitWidth((short)1);
15、设置打印区域
HSSFSheet sheet = wordbook.createSheet("Sheet1");
wordbook.setPrintArea(0, "$A$1:$C$2");
16、标注脚注
HSSFSheet sheet = wordbook.createSheet("format sheet");
HSSFFooter footer = sheet.getFooter()
footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() );
17、在工作单中清空行数据,调整行位置
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("row sheet");
// Create various cells and rows for spreadsheet.
// Shift rows 6 - 11 on the spreadsheet to the top (rows 0 - 5)
sheet.shiftRows(5, 10, -5);
18、选中指定的工作表
HSSFSheet sheet = wb.createSheet("row sheet");
heet.setSelected(true);
19、工作表的放大缩小
HSSFSheet sheet1 = wb.createSheet("new sheet");
sheet1.setZoom(1,2); // 50 percent magnification
20、头注和脚注
HSSFSheet sheet = wb.createSheet("new sheet");
HSSFHeader header = sheet.getHeader();
header.setCenter("Center Header");
header.setLeft("Left Header");
header.setRight(HSSFHeader.font("Stencil-Normal", "Italic") +
HSSFHeader.fontSize((short) 16) + "Right w/ Stencil-Normal Italic font and size 16");
21、自定义颜色
HSSFCellStyle style = wb.createCellStyle();
style.setFillForegroundColor(HSSFColor.LIME.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
HSSFFont font = wb.createFont();
font.setColor(HSSFColor.RED.index);
style.setFont(font);
cell.setCellStyle(style);
22、填充和颜色设置
HSSFCellStyle style = wb.createCellStyle();
style.setFillBackgroundColor(HSSFColor.AQUA.index);
style.setFillPattern(HSSFCellStyle.BIG_SPOTS);
HSSFCell cell = row.createCell((short) 1);
cell.setCellValue("X");
style = wb.createCellStyle();
style.setFillForegroundColor(HSSFColor.ORANGE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
cell.setCellStyle(style);
23、强行刷新单元格公式
HSSFFormulaEvaluator eval=new HSSFFormulaEvaluator((HSSFWorkbook) wb);
private static void updateFormula(Workbook wb,Sheet s,int row){
Row r=s.getRow(row);
Cell c=null;
FormulaEcaluator eval=null;
if(wb instanceof HSSFWorkbook)
eval=new HSSFFormulaEvaluator((HSSFWorkbook) wb);
else if(wb instanceof XSSFWorkbook)
eval=new XSSFFormulaEvaluator((XSSFWorkbook) wb);
for(int i=r.getFirstCellNum();i
c=r.getCell(i);
if(c.getCellType()==Cell.CELL_TYPE_FORMULA)
eval.evaluateFormulaCell(c);
}
}
24、设置不显示excel网格线
sheet.setDisplayGridlines(false);//其中sheet是Sheet对象
25、设置excel单元格中的内容换行
cellStyle.setWrapText(true);
注意:其中cellStyle是WorkBook创建的CellStyle对象,然后将cellStyle设置到要换行的Cell对象,最后在要换行的对象(一般为字符串)加入”/r/n”。例如:
topTile.append("/r/n" +"cellContent");
26、单元格的合并
sheet.addMergedRegion(new CellRangeAddress(0, 4, 0, 2));// 本示例为合并4行2列
27、设置页眉和页脚的页数
HSSFHeader header = sheet.getHeader();
header.setCenter("Center Header");
header.setLeft("Left Header");
header.setRight(HSSFHeader.font("Stencil-Normal", "Italic") +
HSSFHeader.fontSize((short) 16) + "Right w/ Stencil-Normal Italic font and size 16");
HSSFFooter footer = (HSSFFooter )sheet.getFooter()
footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() );
28、使得一个Sheet适合一页
sheet.setAutobreaks(true);
29、设置放大属性(Zoom被明确为一个分数,例如下面的75%使用3作为分子,4作为分母)
sheet.setZoom(3,4);
30、设置打印
HSSFPrintSetup print = (HSSFPrintSetup) sheet.getPrintSetup();
print.setLandscape(true);//设置横向打印
print.setScale((short) 70);//设置打印缩放70%
print.setPaperSize(HSSFPrintSetup.A4_PAPERSIZE);//设置为A4纸张
print.setLeftToRight(true);//設置打印顺序先行后列,默认为先列行
print.setFitHeight((short) 10);设置缩放调整为10页高
print.setFitWidth((short) 10);设置缩放调整为宽高
sheet.setAutobreaks(false);
if (i != 0 && i % 30 == 0) {
sheet.setRowBreak(i);//設置每30行分頁打印
}
31、反复的行和列(设置打印标题)
HSSFWorkbook wb = new HSSFWorkbook();
wb.setRepeatingRowsAndColumns(0, 0, 12, 1, 6);//设置1到12列,行1到6每一页重复打印
32、调整单元格宽度
sheet.setAutobreaks(true);
sheet.setColumnWidth((short)i,colsWidth[i]); //设定单元格长度
sheet.autoSizeColumn((short) i);//自动根据长度调整单元格长度
使用poi对excel的操作到此结束。。。
EasyPOI操作Excel
注:使用easypoi API导出excel相对于poi的API比较简单。
一、导出Excel
1、添加依赖
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-spring-boot-starter</artifactId>
<version>3.3.0</version>
</dependency>
2、映射实体注解
/**
* 路径:com.example.demo.entity
* 类名:
* 功能:使用easypoi导出excel
* 备注:
* 创建人:typ
* 创建时间:2019/5/19 20:54
* 修改人:
* 修改备注:
* 修改时间:
*/
@Data
public class BrandInfo implements Serializable{
@Excel(name = "brandGuid", width = 25,orderNum = "0")
private String brandGuid;
@Excel(name = "brandName", width = 25,orderNum = "0")
private String brandName;
@Excel(name = "ytFullcode", width = 25,orderNum = "0")
private String ytFullcode;
@Excel(name = "formatGuid", width = 25,orderNum = "0")
private String formatGuid;
@Excel(name = "flag", width = 25,orderNum = "0")
private String flag;
@Excel(name = "customerid", width = 25,orderNum = "0")
private String customerid;
@Excel(name = "createDatetime",width = 20,exportFormat = "yyyy-MM-dd HH:mm:ss", orderNum = "1")
private String createDatetime;
@Excel(name = "updateDatetime",width = 20,exportFormat = "yyyy-MM-dd HH:mm:ss", orderNum = "1")
private String updateDatetime;
@Excel(name = "source", width = 25,orderNum = "0")
private Integer source;
}
3、查询数据
3.1、service接口:
public interface ExcelService {
List<BrandInfo> list();
}
3.2、service实现类:
@Service
public class ExcelServiceImlp implements ExcelService {
@Autowired
private ExcelMapper excelMapper;
@Override
public List<BrandInfo> list() {
return excelMapper.list();
}
}
3.3、mapper接口
@Mapper
public interface ExcelMapper {
List<BrandInfo> list();
}
3.4、mapper对应的xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.example.demo.mapper.ExcelMapper">
<select id="list" resultType="com.example.demo.entity.BrandInfo">
select brand_guid,brand_name,yt_fullcode,format_guid,flag,customerid,create_datetime,update_datetime,source from brand_info
</select>
</mapper>
4、导出Controller
package com.example.demo.controller;
import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import com.example.demo.entity.BrandInfo;
import com.example.demo.service.ExcelService;
import org.apache.poi.ss.usermodel.Workbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
/**
* 路径:com.example.demo.controller
* 类名:EasyPoiExcelController
* 功能:使用easypoi注解进行导入导出
* 备注:
* 创建人:typ
* 创建时间:2019/5/19 20:00
* 修改人:
* 修改备注:
* 修改时间:
*/
@RestController
@RequestMapping("/easypoi")
public class EasyPoiExcelController {
private static final Logger log = LoggerFactory.getLogger(EasyPoiExcelController.class);
@Autowired
public ExcelService excelService;
/**
* 方法名:exportExcel
* 功能:导出
* 描述:
* 创建人:typ
* 创建时间:2019/5/19 20:03
* 修改人:
* 修改描述:
* 修改时间:
*/
@GetMapping("/exportExcel")
public void exportExcel(HttpServletResponse response){
log.info("请求 exportExcel start ......");
// 获取用户信息
List<BrandInfo> list = excelService.list();
try {
// 设置响应输出的头类型及下载文件的默认名称
String fileName = new String("demo信息表.xls".getBytes("utf-8"), "ISO-8859-1");
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
response.setContentType("application/vnd.ms-excel;charset=gb2312");
//导出
Workbook workbook = ExcelExportUtil.exportExcel(new ExportParams(), BrandInfo.class, list);
workbook.write(response.getOutputStream());
log.info("请求 exportExcel end ......");
} catch (IOException e) {
log.info("请求 exportExcel 异常:{}", e.getMessage());
}
}
}
5、浏览器请求 http://localhost:8081/easypoi/exportExcel,导出结果如下:
二、导入Excel
这里只是简单的测试了一下,没有把数据往数据库存储:
public static void main(String[] args) {
try{
// 没有使用实体类注解的形式,这里用的Map
List<Map<String,Object>> list = ExcelImportUtil.importExcel(
new File(PoiPublicUtil.getWebRootPath("check.xls")),
Map.class,
new ImportParams()
);
// 数据打印
for (Map<String, Object> map : list) {
System.out.println(JSON.toJSON(map));
}
} catch (Exception e){
log.info(" Excel 导入异常:{}", e.getMessage());
}
}
Excel原数据如图:
导入结果如下:
DEBUG 2019-05-31 14:54:06,466 cn.afterturn.easypoi.excel.imports.ExcelImportServer: Excel import start ,class is interface java.util.Map
DEBUG 2019-05-31 14:54:06,811 cn.afterturn.easypoi.excel.imports.ExcelImportServer: start to read excel by is ,startTime is 1559285646811
DEBUG 2019-05-31 14:54:06,812 cn.afterturn.easypoi.excel.imports.ExcelImportServer: end to read excel by is ,endTime is 1559285646811
DEBUG 2019-05-31 14:54:06,837 cn.afterturn.easypoi.excel.imports.ExcelImportServer: end to read excel list by pos ,endTime is 1559285646837
{"name":"zhangsan","password":123,"id":1,"sex":"男"}
{"name":"lisi","password":123456,"id":2,"sex":"男"}
{"name":"wangwu","password":10002,"id":3,"sex":"女"}
{"name":"zhaoliu","password":1587,"id":4,"sex":"男"}
{"name":"maqi","password":45987,"id":5,"sex":"女"}
{"name":"houjiu","password":23143,"id":6,"sex":"男"}
{"name":"jishi","password":4543645,"id":7,"sex":"男"}
解决不同浏览器导出excel中文名称乱码问题
在Windows上以上的导出都是正常,而在Max上导出时,文件名称包含中文时会乱码,只需添加一下代码就可以完美的解决名称乱码问题。
// 各浏览器基本都支持ISO编码
String userAgent = request.getHeader("User-Agent").toUpperCase();
if(userAgent.contains("TRIDENT") || userAgent.contains("EDGE")){
fileName = java.net.URLEncoder.encode(fileName, "UTF-8");
} else if(userAgent.contains("MSIE")) {
fileName = new String(fileName.getBytes(), "ISO-8859-1");
} else {
fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
}
response.addHeader("Content-Disposition", String.format("attachment; filename=\"%s\"", fileName));
使用POI将HTML Table导出Excel
1、POI依赖
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.8</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.8</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>3.8</version>
</dependency>
2、导出工具类
2.1、使用HSSFWorkbook
package com.demo.utils;
import com.demo.model.CrossRangeCellMeta;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.math.NumberUtils;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.util.CellRangeAddress;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;
/**
* 类名:Html2Excel.java
* 路径:com.demo.utils.Html2Excel.java
* 创建人:tanyp
* 创建时间:2019/9/19 10:00
* 功能:将html table转成excel
* 修改人:
* 修改时间:
* 修改备注:
*/
public class Html2Excel {
/**
* 方法名:table2Excel
* 功能:html表格转excel
* 创建人:tanyp
* 创建时间:2019/9/19 10:00
* 入参:html字符串:<table> ... </table>
* 出参:excel
* 修改人:
* 修改时间:
* 修改备注:
*/
public static HSSFWorkbook table2Excel(String tableHtml) {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet();
HSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
List<CrossRangeCellMeta> crossRowEleMetaLs = new ArrayList<>();
int rowIndex = 0;
try {
Document data = DocumentHelper.parseText(tableHtml);
// 生成表头
Element thead = data.getRootElement().element("thead");
HSSFCellStyle titleStyle = getTitleStyle(wb);
if (thead != null) {
List<Element> trLs = thead.elements("tr");
for (Element trEle : trLs) {
HSSFRow row = sheet.createRow(rowIndex);
List<Element> thLs = trEle.elements("th");
makeRowCell(thLs, rowIndex, row, 0, titleStyle, crossRowEleMetaLs);
row.setHeightInPoints(17);
rowIndex++;
}
}
// 生成表体
Element tbody = data.getRootElement().element("tbody");
if (tbody != null) {
HSSFCellStyle contentStyle = getContentStyle(wb);
List<Element> trLs = tbody.elements("tr");
for (Element trEle : trLs) {
HSSFRow row = sheet.createRow(rowIndex);
List<Element> thLs = trEle.elements("th");
int cellIndex = makeRowCell(thLs, rowIndex, row, 0, titleStyle, crossRowEleMetaLs);
List<Element> tdLs = trEle.elements("td");
makeRowCell(tdLs, rowIndex, row, cellIndex, contentStyle, crossRowEleMetaLs);
row.setHeightInPoints(18);
rowIndex++;
}
}
// 合并表头
for (CrossRangeCellMeta crcm : crossRowEleMetaLs) {
sheet.addMergedRegion(new CellRangeAddress(crcm.getFirstRow(), crcm.getLastRow(), crcm.getFirstCol(), crcm.getLastCol()));
}
} catch (DocumentException e) {
e.printStackTrace();
}
//自动调整列宽
for (int i = 0; i < 15; i++) {
sheet.autoSizeColumn((short) i);
}
return wb;
}
/**
* 方法名:makeRowCell
* 功能:生产行内容
* 创建人:tanyp
* 创建时间:2019/9/19 10:01
* 入参:
* tdLs: th或者td集合;
* rowIndex: 行号;
* row: POI行对象;
* startCellIndex;
* cellStyle: 样式;
* crossRowEleMetaLs: 跨行元数据集合
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
private static int makeRowCell(List<Element> tdLs, int rowIndex, HSSFRow row, int startCellIndex, HSSFCellStyle cellStyle, List<CrossRangeCellMeta> crossRowEleMetaLs) {
int i = startCellIndex;
for (int eleIndex = 0; eleIndex < tdLs.size(); i++, eleIndex++) {
int captureCellSize = getCaptureCellSize(rowIndex, i, crossRowEleMetaLs);
while (captureCellSize > 0) {
// 当前行跨列处理(补单元格)
for (int j = 0; j < captureCellSize; j++) {
row.createCell(i);
i++;
}
captureCellSize = getCaptureCellSize(rowIndex, i, crossRowEleMetaLs);
}
Element thEle = tdLs.get(eleIndex);
String val = thEle.getTextTrim();
if (StringUtils.isBlank(val)) {
Element e = thEle.element("a");
if (e != null) {
val = e.getTextTrim();
}
}
HSSFCell c = row.createCell(i);
if (NumberUtils.isNumber(val)) {
c.setCellValue(Double.parseDouble(val));
c.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
} else {
c.setCellValue(val);
}
c.setCellStyle(cellStyle);
int rowSpan = NumberUtils.toInt(thEle.attributeValue("rowspan"), 1);
int colSpan = NumberUtils.toInt(thEle.attributeValue("colspan"), 1);
// 存在跨行或跨列
if (rowSpan > 1 || colSpan > 1) {
crossRowEleMetaLs.add(new CrossRangeCellMeta(rowIndex, i, rowSpan, colSpan));
}
// 当前行跨列处理(补单元格)
if (colSpan > 1) {
for (int j = 1; j < colSpan; j++) {
i++;
row.createCell(i);
}
}
}
return i;
}
/**
* 方法名:getCaptureCellSize
* 功能:获得因rowSpan占据的单元格
* 创建人:tanyp
* 创建时间:2019/9/19 10:03
* 入参:
* rowIndex:行号
* colIndex:列号
* crossRowEleMetaLs:跨行列元数据
* 出参:当前行在某列需要占据单元格
* 修改人:
* 修改时间:
* 修改备注:
*/
private static int getCaptureCellSize(int rowIndex, int colIndex, List<CrossRangeCellMeta> crossRowEleMetaLs) {
int captureCellSize = 0;
for (CrossRangeCellMeta crossRangeCellMeta : crossRowEleMetaLs) {
if (crossRangeCellMeta.getFirstRow() < rowIndex && crossRangeCellMeta.getLastRow() >= rowIndex) {
if (crossRangeCellMeta.getFirstCol() <= colIndex && crossRangeCellMeta.getLastCol() >= colIndex) {
captureCellSize = crossRangeCellMeta.getLastCol() - colIndex + 1;
}
}
}
return captureCellSize;
}
/**
* 方法名:getTitleStyle
* 功能:获得标题样式
* 创建人:tanyp
* 创建时间:2019/9/19 10:04
* 入参:workbook
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
private static HSSFCellStyle getTitleStyle(HSSFWorkbook workbook) {
short titlebackgroundcolor = HSSFColor.GREY_25_PERCENT.index;
short fontSize = 12;
String fontName = "宋体";
HSSFCellStyle style = workbook.createCellStyle();
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style.setBorderBottom((short) 1);
style.setBorderTop((short) 1);
style.setBorderLeft((short) 1);
style.setBorderRight((short) 1);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
// 背景色
style.setFillForegroundColor(titlebackgroundcolor);
HSSFFont font = workbook.createFont();
font.setFontName(fontName);
font.setFontHeightInPoints(fontSize);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
style.setFont(font);
return style;
}
/**
* 方法名:getContentStyle
* 功能:获得内容样式
* 创建人:tanyp
* 创建时间:2019/9/19 10:05
* 入参:HSSFWorkbook
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
private static HSSFCellStyle getContentStyle(HSSFWorkbook wb) {
short fontSize = 12;
String fontName = "宋体";
HSSFCellStyle style = wb.createCellStyle();
style.setBorderBottom((short) 1);
style.setBorderTop((short) 1);
style.setBorderLeft((short) 1);
style.setBorderRight((short) 1);
HSSFFont font = wb.createFont();
font.setFontName(fontName);
font.setFontHeightInPoints(fontSize);
style.setFont(font);
return style;
}
}
异常:使用Html2Excel.java导出时列超过256时会报错:Invalid column index (256). Allowable column range for BIFF8 is (0..255) or (‘A’..’IV’)。
原因:使用HSSFWorkbook最多只能创建256列,超过就会报上述的错误。
解决方法:使用XSSFWorkbook创建,最多可以创建16384列。修改Html2Excel工具类为XHtml2Excel.java,如下:
2.2、使用XSSFWorkbook
package com.demo.utils;
import com.demo.model.CrossRangeCellMeta;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.math.NumberUtils;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.*;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;
/**
* 类名:XHtml2Excel.java
* 路径:com.demo.utils.XHtml2Excel.java
* 创建人:tanyp
* 创建时间:2019/9/19 10:00
* 功能:将html table转成excel
* 修改人:
* 修改时间:
* 修改备注:
*/
public class XHtml2Excel {
/**
* 方法名:table2Excel
* 功能:html表格转excel
* 创建人:tanyp
* 创建时间:2019/9/19 10:00
* 入参:html字符串:<table> ... </table>
* 出参:excel
* 修改人:
* 修改时间:
* 修改备注:
*/
public static XSSFWorkbook table2Excel(String tableHtml) {
XSSFWorkbook wb = new XSSFWorkbook();
XSSFSheet sheet = wb.createSheet();
XSSFCellStyle style = wb.createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
List<CrossRangeCellMeta> crossRowEleMetaLs = new ArrayList<>();
int rowIndex = 0;
try {
Document data = DocumentHelper.parseText(tableHtml);
// 生成表头
Element thead = data.getRootElement().element("thead");
XSSFCellStyle titleStyle = getTitleStyle(wb);
if (thead != null) {
List<Element> trLs = thead.elements("tr");
for (Element trEle : trLs) {
XSSFRow row = sheet.createRow(rowIndex);
List<Element> thLs = trEle.elements("th");
makeRowCell(thLs, rowIndex, row, 0, titleStyle, crossRowEleMetaLs);
row.setHeightInPoints(17);
rowIndex++;
}
}
// 生成表体
Element tbody = data.getRootElement().element("tbody");
if (tbody != null) {
XSSFCellStyle contentStyle = getContentStyle(wb);
List<Element> trLs = tbody.elements("tr");
for (Element trEle : trLs) {
XSSFRow row = sheet.createRow(rowIndex);
List<Element> thLs = trEle.elements("th");
int cellIndex = makeRowCell(thLs, rowIndex, row, 0, titleStyle, crossRowEleMetaLs);
List<Element> tdLs = trEle.elements("td");
makeRowCell(tdLs, rowIndex, row, cellIndex, contentStyle, crossRowEleMetaLs);
row.setHeightInPoints(18);
rowIndex++;
}
}
// 合并表头
for (CrossRangeCellMeta crcm : crossRowEleMetaLs) {
sheet.addMergedRegion(new CellRangeAddress(crcm.getFirstRow(), crcm.getLastRow(), crcm.getFirstCol(), crcm.getLastCol()));
}
} catch (DocumentException e) {
e.printStackTrace();
}
//自动调整列宽
for (int i = 0; i < 15; i++) {
sheet.autoSizeColumn((short) i);
}
return wb;
}
/**
* 方法名:makeRowCell
* 功能:生产行内容
* 创建人:tanyp
* 创建时间:2019/9/19 10:01
* 入参:
* tdLs: th或者td集合;
* rowIndex: 行号;
* row: POI行对象;
* startCellIndex;
* cellStyle: 样式;
* crossRowEleMetaLs: 跨行元数据集合
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
private static int makeRowCell(List<Element> tdLs, int rowIndex, XSSFRow row, int startCellIndex, XSSFCellStyle cellStyle, List<CrossRangeCellMeta> crossRowEleMetaLs) {
int i = startCellIndex;
for (int eleIndex = 0; eleIndex < tdLs.size(); i++, eleIndex++) {
int captureCellSize = getCaptureCellSize(rowIndex, i, crossRowEleMetaLs);
while (captureCellSize > 0) {
// 当前行跨列处理(补单元格)
for (int j = 0; j < captureCellSize; j++) {
row.createCell(i);
i++;
}
captureCellSize = getCaptureCellSize(rowIndex, i, crossRowEleMetaLs);
}
Element thEle = tdLs.get(eleIndex);
String val = thEle.getTextTrim();
if (StringUtils.isBlank(val)) {
Element e = thEle.element("a");
if (e != null) {
val = e.getTextTrim();
}
}
XSSFCell c = row.createCell(i);
if (NumberUtils.isNumber(val)) {
c.setCellValue(Double.parseDouble(val));
c.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
} else {
c.setCellValue(val);
}
c.setCellStyle(cellStyle);
int rowSpan = NumberUtils.toInt(thEle.attributeValue("rowspan"), 1);
int colSpan = NumberUtils.toInt(thEle.attributeValue("colspan"), 1);
// 存在跨行或跨列
if (rowSpan > 1 || colSpan > 1) {
crossRowEleMetaLs.add(new CrossRangeCellMeta(rowIndex, i, rowSpan, colSpan));
}
// 当前行跨列处理(补单元格)
if (colSpan > 1) {
for (int j = 1; j < colSpan; j++) {
i++;
row.createCell(i);
}
}
}
return i;
}
/**
* 方法名:getCaptureCellSize
* 功能:获得因rowSpan占据的单元格
* 创建人:tanyp
* 创建时间:2019/9/19 10:03
* 入参:
* rowIndex:行号
* colIndex:列号
* crossRowEleMetaLs:跨行列元数据
* 出参:当前行在某列需要占据单元格
* 修改人:
* 修改时间:
* 修改备注:
*/
private static int getCaptureCellSize(int rowIndex, int colIndex, List<CrossRangeCellMeta> crossRowEleMetaLs) {
int captureCellSize = 0;
for (CrossRangeCellMeta crossRangeCellMeta : crossRowEleMetaLs) {
if (crossRangeCellMeta.getFirstRow() < rowIndex && crossRangeCellMeta.getLastRow() >= rowIndex) {
if (crossRangeCellMeta.getFirstCol() <= colIndex && crossRangeCellMeta.getLastCol() >= colIndex) {
captureCellSize = crossRangeCellMeta.getLastCol() - colIndex + 1;
}
}
}
return captureCellSize;
}
/**
* 方法名:getTitleStyle
* 功能:获得标题样式
* 创建人:tanyp
* 创建时间:2019/9/19 10:04
* 入参:workbook
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
private static XSSFCellStyle getTitleStyle(XSSFWorkbook workbook) {
short titlebackgroundcolor = HSSFColor.GREY_25_PERCENT.index;
short fontSize = 12;
String fontName = "宋体";
XSSFCellStyle style = workbook.createCellStyle();
style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style.setBorderBottom((short) 1);
style.setBorderTop((short) 1);
style.setBorderLeft((short) 1);
style.setBorderRight((short) 1);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
// 背景色
style.setFillForegroundColor(titlebackgroundcolor);
XSSFFont font = workbook.createFont();
font.setFontName(fontName);
font.setFontHeightInPoints(fontSize);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
style.setFont(font);
return style;
}
/**
* 方法名:getContentStyle
* 功能:获得内容样式
* 创建人:tanyp
* 创建时间:2019/9/19 10:05
* 入参:HSSFWorkbook
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
private static XSSFCellStyle getContentStyle(XSSFWorkbook wb) {
short fontSize = 12;
String fontName = "宋体";
XSSFCellStyle style = wb.createCellStyle();
style.setBorderBottom((short) 1);
style.setBorderTop((short) 1);
style.setBorderLeft((short) 1);
style.setBorderRight((short) 1);
XSSFFont font = wb.createFont();
font.setFontName(fontName);
font.setFontHeightInPoints(fontSize);
style.setFont(font);
return style;
}
}
3、跨行列实体类
package com.demo.model;
/**
* 类名:CrossRangeCellMeta.java
* 路径:com.winner.model.CrossRangeCellMeta.java
* 创建人:tanyp
* 创建时间:2019/9/19 10:00
* 功能:跨行元素元数据
* 修改人:
* 修改时间:
* 修改备注:
*/
public class CrossRangeCellMeta {
public CrossRangeCellMeta(int firstRowIndex, int firstColIndex, int rowSpan, int colSpan) {
super();
this.firstRowIndex = firstRowIndex;
this.firstColIndex = firstColIndex;
this.rowSpan = rowSpan;
this.colSpan = colSpan;
}
private int firstRowIndex;
private int firstColIndex;
// 跨越行数
private int rowSpan;
// 跨越列数
private int colSpan;
public int getFirstRow() {
return firstRowIndex;
}
public int getLastRow() {
return firstRowIndex + rowSpan - 1;
}
public int getFirstCol() {
return firstColIndex;
}
public int getLastCol() {
return firstColIndex + colSpan - 1;
}
public int getColSpan() {
return colSpan;
}
}
4、controller调用
/**
* 类名:Html2ExcelController.java
* 路径:com.demo.controller.Html2ExcelController.java
* 创建人:tanyp
* 创建时间:2019/9/19 10:00
* 功能:HTML table导出excel
* 修改人:
* 修改时间:
* 修改备注:
*/
@Controller
public class Html2ExcelController {
private static final Logger log = LoggerFactory.getLogger(Html2ExcelController.class);
/**
* 方法名:exportExcel
* 功能:导出
* 创建人:tanyp
* 创建时间:2019/9/19 11:07
* 入参:dataTable
* 出参:
* 修改人:
* 修改时间:
* 修改备注:
*/
@RequestMapping("exportExcel")
public void exportExcel(HttpServletRequest request, HttpServletResponse response) {
try {
String dataTable = request.getParameter("dataTable");
String fileName = "测试"+System.currentTimeMillis()+".xls";
// 各浏览器基本都支持ISO编码
String userAgent = request.getHeader("User-Agent").toUpperCase();
if (userAgent.contains("TRIDENT") || userAgent.contains("EDGE")) {
fileName = java.net.URLEncoder.encode(fileName, "UTF-8");
} else if (userAgent.contains("MSIE")) {
fileName = new String(fileName.getBytes(), "ISO-8859-1");
} else {
fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
}
response.addHeader("Content-Disposition", String.format("attachment; filename=\"%s\"", fileName));
OutputStream os = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/vnd.ms-excel;charset=gb2312");
//将excel写入到输出流中
HSSFWorkbook workbook = Html2Excel.table2Excel(dataTable);
// XSSFWorkbook workbook = XHtml2Excel.table2Excel(dataTable);
workbook.write(os);
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
log.error("请求 exportExcel异常:{}", e.getMessage());
}
}
}
备注:使用两个不同工具类时导包不同(HSSFWorkbook或XSSFWorkbook) 。
5、HTML代码
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript" src="js/jquery.js"></script>
</head>
<body>
<div onclick="download()">导出</div>
<div id="DateTable" style="overflow-x:scroll">
<table id="myTable" class="gridtable w2000"><thead><tr><th rowspan="2" style="min-width: 100px; max-width: 100px;width: 100px;">名称</th><th rowspan="2" style="min-width: 80px; max-width: 80px;width: 80px;">客流总量(人次)</th><th rowspan="2" style="min-width: 80px; max-width: 80px;width: 80px;">编码</th><th rowspan="2" style="min-width: 80px; max-width: 80px;width: 80px;">单客流总量(人次)</th><th colspan="3">时段客流(人次)</th></tr><tr><th style="min-width: 80px; max-width: 80px;width: 80px;">01:05</th><th style="min-width: 80px; max-width: 80px;width: 80px;">01:10</th><th style="min-width: 80px; max-width: 80px;width: 80px;">01:15</th></tr></thead><tbody id="pointBasedDateTbody"><tr><td rowspan="2">购物一号门</td><td rowspan="2">5006</td><td>C001</td><td>3006</td><td>0</td><td>0</td><td>0</td></tr><tr><td>C002</td><td>2000</td><td>0</td><td>0</td><td>0</td></tr><tr><td rowspan="2">购物二号门</td><td rowspan="2">2796</td><td>C001</td><td>1542</td><td>0</td><td>0</td><td>0</td></tr><tr><td>C002</td><td>1254</td><td>0</td><td>0</td><td>0</td></tr><tr><td rowspan="1">购物三号门</td><td rowspan="1">1654</td><td>C005</td><td>1654</td><td>0</td><td>0</td><td>0</td></tr><tr><td rowspan="1">购物四号门</td><td rowspan="1">54365</td><td>C001</td><td>54365</td><td>0</td><td>0</td><td>0</td></tr></tbody></table>
</div>
<form action="exportExcel" id="exportExcle" method="POST">
<input type="hidden" name="dataTable" id="dataTable">
</form>
</body>
<script>
function download() {
var html = $("#tables").html();
$("#dataTable").val(html);
$("#exportExcle").submit();
};
</script>
</html>
6、效果图
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