背景 业务中,客户需要导出各种数据统计报表,如果客户要求,我希望导出的报表中能插入这些数据的统计图表该如何操作,如图:
传统POIorg.apache.poipoi-ooxml4.1.2
>package com.test.other.demo.report; import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*; import org.apache.poi.util.IOUtils; import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.platform.commons.util.StringUtils; import java.io.*; /** * POI 往excel插入图片 */public
classPOIExport{ private Workbook workbook; publicstaticvoidmain(String[] args)throws Exception
{ Workbook workbook = getWorkBook("/Users/hui.yang/Desktop/excel演示/poi/演示1.xlsx"); Sheet sheet = workbook.getSheet(
"sheet1"); InputStream inputStream = new FileInputStream("/Users/hui.yang/Desktop/excel演示/poi/演示图表1.png"
); byte[] bytes = IOUtils.toByteArray(inputStream); // 这里根据实际需求选择图片类型int pictureIdx = workbook.addPicture(bytes, Workbook.PICTURE_TYPE_JPEG); CreationHelper helper = workbook.getCreationHelper(); ClientAnchor anchor = helper.createClientAnchor(); Drawing drawing = sheet.createDrawingPatriarch(); anchor.setRow1(
10); //插入行 anchor.setCol1(0); // 插入列// 插入图片 Picture pict = drawing.createPicture(anchor, pictureIdx);
// 调整图片占单元格百分比的大小，1.0就是100% pict.resize(8, 5); //临时缓冲区 ByteArrayOutputStream byteArrayOut =
new ByteArrayOutputStream(); //创建临时文件try { workbook.write(byteArrayOut); }
catch (IOException e) { e.printStackTrace(); } finally { workbook.close(); }
byte[] bookByteAry = byteArrayOut.toByteArray(); File file = new File("/Users/hui.yang/Desktop/excel演示/poi/演示插入结果.xlsx"
); if (!file.getParentFile().exists()) { file.getParentFile().mkdirs(); }
if (!file.exists()) { file.createNewFile(); } FileOutputStream fos = new FileOutputStream(file); fos.write(bookByteAry,
0, bookByteAry.length); fos.flush(); fos.close(); } /** * 获取workBoot 兼容xlsx xls */
publicstatic Workbook getWorkBook(String filePath)throws Exception { Workbook workbook = null
; if (StringUtils.isBlank(filePath)) { // throw new RuntimeException("路径错误!"); }
elseif (filePath.toLowerCase().endsWith("xls")) { workbook = new HSSFWorkbook(new FileInputStream(filePath)); }
elseif (filePath.toLowerCase().endsWith("xlsx")) { workbook = new XSSFWorkbook(new FileInputStream(filePath)); }
else { // throw new RuntimeException("路径错误!"); } return workbook; } }
e-iceblue(推荐)e-icebluespire.xls.free
5.1.0package com.test.other.demo.report; import com.spire.xls.*; /** * e-iceblue 往excel插入图片 */
publicclassEiceBlueExport { publicstaticvoidmain(String[] args) { //创建Workbook实例 Workbook workbook =
new Workbook(); //加载Excel文档 workbook.loadFromFile("/Users/hui.yang/Desktop/excel演示/e-iceblue/演示1.xlsx"
); //获取第一张工作表 Worksheet sheet = workbook.getWorksheets().get(0); //设置图表插入的位置 ExcelPicture pic = sheet.getPictures().
add(10, 1, "/Users/hui.yang/Desktop/excel演示/e-iceblue/演示图表1.png"); //设置图片的宽度和高度 pic.setWidth(
600); pic.setHeight(120); //保存文档 workbook.saveToFile("/Users/hui.yang/Desktop/excel演示/e-iceblue/演示插入结果.xlsx"
, ExcelVersion.Version2013); //文档转pdf transFileToPdf("/Users/hui.yang/Desktop/excel演示/e-iceblue/庞源在线-安全-安全周报-20230303130801.xlsx"
); } /** * 转pdf */publicstaticvoidtransFileToPdf(String fillPath) { Workbook wb =
new Workbook(); wb.loadFromFile(fillPath); wb.getWorksheets().get(0); ConverterSetting converterSetting =
new ConverterSetting(); converterSetting.setSheetFitToPage(true); wb.setConverterSetting(converterSetting);
//调用方法保存为PDF格式 wb.saveToFile("/Users/hui.yang/Desktop/excel演示/e-iceblue/庞源在线-安全-安全周报-20230303130801.pdf"
, FileFormat.PDF); } }
方案对比1poi对xlxs xls不同版本有不同的语法,需要单独写个方法去获取WorkBook,而e-iceblue直接封装好方法,傻瓜式操作2poi需设置图片类型,文件流操作,而e-iceblue直接封装好方法,傻瓜式操作
3e-iceblue有丰富的文档转换工具,如转为PDF,如以上代码,我这边转换的pdf,看了下再也不用在***网站转pdf了,骚的一批,当然也封装了其他文档转换,这里不赘述
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