PDF平铺导出数据，关于导出图片，表格的代码数据

package com.mv.common.utils.pdf; import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; import com.itextpdf.text.*; import com.itextpdf.text.pdf.BaseFont; import com.itextpdf.text.pdf.PdfPCell; import com.itextpdf.text.pdf.PdfPTable; import com.itextpdf.text.pdf.PdfWriter; import com.mv.common.constant.DictTypeConstant; import com.mv.common.constant.TipCode; import com.mv.common.excel.PictureModel; import com.mv.common.utils.DictCacheUtil; import com.mv.common.utils.MessageUtils; import com.mv.common.utils.SpringContextUtils; import com.mv.common.utils.StringUtilNum; import com.mv.modules.minio.MinioUtil; import org.apache.commons.lang3.StringUtils; import javax.servlet.http.HttpServletResponse; import java.io.*; import java.net.URLEncoder; import java.util.List; import java.util.*; import java.util.stream.Collectors; public class PDFUtil { public static BaseFont bfChinese; private static int fontTitleSize = 14; /** * 导出一个表格数据 * * @param response 响应 * @param titles 一行标题 * @param datas 数据 * @param fileTitle 文件标题 * @param fileNo 文件编号 * @throws Exception */ public static void exportData(HttpServletResponse response, List<List<String>> titles, List<List<Object>> datas, String fileTitle, String fileNo, String fileName) { // 设置输出的格式 response.setContentType("application/pdf"); try { fileName = URLEncoder.encode(fileName, "UTF-8"); } catch (UnsupportedEncodingException e) { } response.addHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); response.setHeader("Access-Control-Expose-Headers", "Content-Disposition"); OutputStream outputStream = null; try { if (null == bfChinese) { bfChinese = BaseFont.createFont("/fonts/simsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); } //临时文件目录 outputStream = response.getOutputStream(); //1.打开文档并设置基本属性 Document document = new Document(); //writer PdfWriter writer = PdfWriter.getInstance(document, outputStream); writer.setViewerPreferences(PdfWriter.PageModeUseThumbs); writer.setPageSize(PageSize.A4); writer.setPageEvent(new PDFBuilder()); document.open(); if (StringUtils.isNotEmpty(fileNo)) { //文件编号 Paragraph text2 = new Paragraph(MessageUtils.getMessage(TipCode.CODE_900002) + fileNo, getPdfChineseFont(fontTitleSize)); //标题样式 text2.setPaddingTop(0.1f); text2.setSpacingAfter(10); document.add(text2); } if (StringUtils.isNotEmpty(fileTitle)) { //文件编号 Paragraph text1 = new Paragraph(MessageUtils.getMessage(TipCode.CODE_900001) + fileTitle, getPdfChineseFont(fontTitleSize)); //标题样式 text1.setPaddingTop(0.1f); text1.setSpacingAfter(10); document.add(text1); } //第一表格列宽 PdfPTable table1 = new PdfPTable(titles.size()); table1.setWidthPercentage(100); table1.setSpacingBefore(10); table1.setHorizontalAlignment(Element.ALIGN_LEFT); PdfPCell pdfCell; Paragraph paragraph; //table数据填充 for (int j = 0; j < titles.size(); j++) { //选好cell处理数据 pdfCell = new PdfPCell(); setTableStyle(table1, pdfCell); paragraph = new Paragraph(StringUtilNum.getString(titles.get(j).get(0)), getPdfChineseFont(12)); pdfCell.setPhrase(paragraph); table1.addCell(pdfCell); } for (int i = 0; i < datas.size(); i++) { for (int j = 0; j < datas.get(i).size(); j++) { //选好cell处理数据 pdfCell = new PdfPCell(); setTableStyle(table1, pdfCell); paragraph = new Paragraph(StringUtilNum.getString(datas.get(i).get(j)), getPdfChineseFont(12)); pdfCell.setPhrase(paragraph); table1.addCell(pdfCell); } } document.add(table1); document.close(); } catch (Exception e) { } finally { if (null != outputStream) { try { outputStream.close(); } catch (IOException e) { } } } } /** * 导出图片 */ public static void exportImage(HttpServletResponse response, String images, String fileTitle, String fileNo, String fileName) { JSONArray array = JSONArray.parseArray(images); if (array.size() == 0) { return; } // 设置输出的格式 response.setContentType("application/pdf"); try { fileName = URLEncoder.encode(fileName, "UTF-8"); } catch (UnsupportedEncodingException e) { } response.addHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); response.setHeader("Access-Control-Expose-Headers", "Content-Disposition"); OutputStream outputStream = null; try { if (null == bfChinese) { bfChinese = BaseFont.createFont("/fonts/simsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.EMBEDDED); } //临时文件目录 outputStream = response.getOutputStream(); //1.打开文档并设置基本属性 Document document = new Document(); //writer PdfWriter writer = PdfWriter.getInstance(document, outputStream); writer.setViewerPreferences(PdfWriter.PageModeUseThumbs); writer.setPageSize(PageSize.A4); writer.setPageEvent(new PDFBuilder()); document.open(); if (StringUtils.isNotEmpty(fileNo)) { //文件编号 Paragraph text2 = new Paragraph(MessageUtils.getMessage(TipCode.CODE_900002) + fileNo, getPdfChineseFont(fontTitleSize)); //标题样式 text2.setPaddingTop(0.1f); text2.setSpacingAfter(10); document.add(text2); } if (StringUtils.isNotEmpty(fileTitle)) { //文件编号 Paragraph text1 = new Paragraph(MessageUtils.getMessage(TipCode.CODE_900001) + fileTitle, getPdfChineseFont(fontTitleSize)); //标题样式 text1.setPaddingTop(0.1f); text1.setSpacingAfter(10); document.add(text1); } // 通过文件名创建图像 MinioUtil minioUtil = SpringContextUtils.getBean("minioUtil", MinioUtil.class); JSONObject object; byte[] bytes; Image image; for (int j = 0; j < array.size(); j++) { object = array.getJSONObject(j); bytes = minioUtil.getObjectInputByte(object.getString("bucketName"), object.getString("url")); image = Image.getInstance(bytes); image.setSpacingBefore(10); float scaleFactor = document.getPageSize().getWidth() / image.getScaledWidth(); image.scaleToFit(document.getPageSize().getWidth(), image.getScaledHeight() * scaleFactor); image.setAlignmen