一、SpringBoot导出数据为PDF

1、添加所需依赖

<dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.11</version>
</dependency>
<dependency><groupId>com.itextpdf.tool</groupId><artifactId>xmlworker</artifactId><version>5.5.11</version>
</dependency>

2、编写生成工具方法

public class PdfFontUtil {private PdfFontUtil(){}/*** 段落样式获取*/public static Paragraph getParagraph (String content, Font font,Integer alignment){Paragraph paragraph = new Paragraph(content,font) ;if (alignment != null && alignment >= 0){paragraph.setAlignment(alignment);}return paragraph ;}/*** 图片样式*/public static Image getImage (String imgPath,float width,float height) throws Exception {Image image = Image.getInstance(imgPath);image.setAlignment(Image.MIDDLE);if (width > 0 && height > 0){image.scaleAbsolute(width, height);}return image ;}/*** 表格生成*/public static PdfPTable getPdfPTable01 (int numColumns,float totalWidth) throws Exception {// 表格处理PdfPTable table = new PdfPTable(numColumns);// 设置表格宽度比例为%100table.setWidthPercentage(100);// 设置宽度:宽度平均table.setTotalWidth(totalWidth);// 锁住宽度table.setLockedWidth(true);// 设置表格上面空白宽度table.setSpacingBefore(10f);// 设置表格下面空白宽度table.setSpacingAfter(10f);// 设置表格默认为无边框table.getDefaultCell().setBorder(0);table.setPaddingTop(50);table.setSplitLate(false);return table ;}/*** 表格内容*/public static PdfPCell getPdfPCell (Phrase phrase){return new PdfPCell (phrase) ;}/*** 表格内容带样式*/public static void addTableCell (PdfPTable dataTable,Font font,List<String> cellList){for (String content:cellList) {dataTable.addCell(getParagraph(content,font,-1));}}
}

3、调用方法生成PDF

public class PdfPage01 {// 基础配置private static String PDF_SITE = "G:\\file\\PDF页面.pdf" ;private static String FONT = "G:/file/Fonts/Simhei.ttf";private static String PAGE_TITLE = "PDF数据导出报告" ;// 基础样式private static Font TITLE_FONT = FontFactory.getFont(FONT, BaseFont.IDENTITY_H,20, Font.BOLD);private static Font NODE_FONT = FontFactory.getFont(FONT, BaseFont.IDENTITY_H,15, Font.BOLD);private static Font BLOCK_FONT = FontFactory.getFont(FONT, BaseFont.IDENTITY_H,13, Font.BOLD, BaseColor.BLACK);private static Font INFO_FONT = FontFactory.getFont(FONT, BaseFont.IDENTITY_H,12, Font.NORMAL,BaseColor.BLACK);private static Font CONTENT_FONT = FontFactory.getFont(FONT, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);private static void createPdfPage () throws Exception {// 创建文档Document document = new Document();PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(PDF_SITE));document.open();// 报告标题document.add(PdfFontUtil.getParagraph(PAGE_TITLE,TITLE_FONT,1)) ;document.add(PdfFontUtil.getParagraph("\n商户名称：XXX科技有限公司",INFO_FONT,-1)) ;document.add(PdfFontUtil.getParagraph("\n生成时间：2021-09-02\n\n",INFO_FONT,-1)) ;// 报告内容// 段落标题 + 报表图document.add(PdfFontUtil.getParagraph("城市数据分布统计",NODE_FONT,-1)) ;document.add(PdfFontUtil.getParagraph("\n· 可视化图表\n\n",BLOCK_FONT,-1)) ;// 设置图片宽高float documentWidth = document.getPageSize().getWidth() - document.leftMargin() - document.rightMargin();float documentHeight = documentWidth / 580 * 320;document.add(PdfFontUtil.getImage("F:\\file-type\\myChart.jpg",documentWidth-80,documentHeight-80)) ;// 数据表格document.add(PdfFontUtil.getParagraph("\n· 数据详情\n\n",BLOCK_FONT,-1)) ;PdfPTable dataTable = PdfFontUtil.getPdfPTable01(6,500) ;// 设置表格List<String> tableHeadList = tableHead () ;List<List<String>> tableDataList = getTableData () ;PdfFontUtil.addTableCell(dataTable,CONTENT_FONT,tableHeadList);for (List<String> tableData : tableDataList) {PdfFontUtil.addTableCell(dataTable,CONTENT_FONT,tableData);}document.add(dataTable);document.add(PdfFontUtil.getParagraph("\n· 报表描述\n\n",BLOCK_FONT,-1)) ;document.add(PdfFontUtil.getParagraph("数据报告可以监控每天的推广情况，" +"可以针对不同的数据表现进行分析，以提升推广效果。",CONTENT_FONT,-1)) ;document.newPage() ;document.close();writer.close();}private static List<List<String>> getTableData (){List<List<String>> tableDataList = new ArrayList<>() ;for (int i = 0 ; i < 3 ; i++){List<String> tableData = new ArrayList<>() ;tableData.add("浙江"+i) ;tableData.add("杭州"+i) ;tableData.add("276"+i) ;tableData.add("33.3%") ;tableData.add("33.3%") ;tableData.add("33.3%") ;tableData.add("33.3%") ;tableData.add("33.3%") ;tableDataList.add(tableData) ;}return tableDataList ;}private static List<String> tableHead (){List<String> tableHeadList = new ArrayList<>() ;tableHeadList.add("省份") ;tableHeadList.add("城市") ;tableHeadList.add("数量") ;tableHeadList.add("百分比") ;tableHeadList.add("百分比") ;tableHeadList.add("百分比") ;tableHeadList.add("百分比2") ;tableHeadList.add("百分比1") ;return tableHeadList ;}public static void main(String[] args) throws Exception {createPdfPage () ;}
}

4、最终效果