用Java驗證pdf文件的電子章簽名

<?xml version='1.0' encoding='UTF-8'?><project xmlns='http://maven.apache.org/POM/4.0.0' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd'> <modelVersion>4.0.0</modelVersion> <groupId>com.yalong</groupId> <artifactId>verifyPdf</artifactId> <version>1.0-SNAPSHOT</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> <lombok.version>1.18.10</lombok.version> </properties> <dependencies> <!-- <dependency>--> <!-- <groupId> e-iceblue </groupId>--> <!-- <artifactId>spire.pdf</artifactId>--> <!-- <version>3.4.2</version>--> <!-- </dependency>--> <dependency> <groupId>javax.xml.bind</groupId> <artifactId>jaxb-api</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>e-iceblue</groupId> <artifactId>spire.pdf.free</artifactId> <version>2.6.3</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>4.0.1</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>4.0.1</version> </dependency> <!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> </dependency> </dependencies> <repositories> <repository> <id>com.e-iceblue</id> <url>http://repo.e-iceblue.cn/repository/maven-public/</url> </repository> </repositories></project>VerifySignature.java

import com.spire.pdf.PdfDocument;import com.spire.pdf.security.PdfCertificate;import com.spire.pdf.security.PdfSignature;import com.spire.pdf.widget.PdfFormFieldWidgetCollection;import com.spire.pdf.widget.PdfFormWidget;import com.spire.pdf.widget.PdfSignatureFieldWidget;import lombok.Data;import lombok.ToString;import org.apache.poi.ss.usermodel.*;import org.apache.poi.ss.usermodel.Font;import org.apache.poi.xssf.streaming.SXSSFWorkbook;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.Serializable;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.HashSet;import java.util.List;import java.util.regex.Matcher;import java.util.regex.Pattern;import javax.swing.*;import java.awt.*;@Data@ToStringclass ExcelDataVO implements Serializable { private String fileName; private String signDate; private String validBefore; private String validAfter; private String subject; private String serialNumber; private Boolean isEffective = false;}class ExcelWriter { //表頭 private static final List<String> CELL_HEADS; static { // 類裝載時就載入指定好的表頭信息，如有需要，可以考慮做成動態生成的表頭 CELL_HEADS = new ArrayList<>(); CELL_HEADS.add('文件名'); CELL_HEADS.add('簽名時間'); CELL_HEADS.add('有效期'); CELL_HEADS.add('有效期'); CELL_HEADS.add('簽名機構'); CELL_HEADS.add('序列號'); CELL_HEADS.add('是否通過驗簽'); } /** * 生成Excel并寫入數據信息 * * @param dataList 數據列表 * @return 寫入數據后的工作簿對象 */ public static Workbook exportData(List<ExcelDataVO> dataList) { // 生成xlsx的Excel Workbook workbook = new SXSSFWorkbook(); // 如需生成xls的Excel，請使用下面的工作簿對象，注意后續輸出時文件后綴名也需更改為xls //Workbook workbook = new HSSFWorkbook(); // 生成Sheet表，寫入第一行的表頭 Sheet sheet = buildDataSheet(workbook); //構建每行的數據內容 int rowNum = 1; for (ExcelDataVO data : dataList) { if (data == null) {continue; } //輸出行數據 Row row = sheet.createRow(rowNum++); convertDataToRow(workbook, data, row); } return workbook; } /** * 生成sheet表，并寫入第一行數據（表頭） * * @param workbook 工作簿對象 * @return 已經寫入表頭的Sheet */ private static Sheet buildDataSheet(Workbook workbook) { Sheet sheet = workbook.createSheet(); // 設置表頭寬度 for (int i = 0; i < CELL_HEADS.size(); i++) { sheet.setColumnWidth(i, 4000); } // 設置默認行高 sheet.setDefaultRowHeight((short) 400); // 構建頭單元格樣式 CellStyle cellStyle = buildHeadCellStyle(sheet.getWorkbook()); // 寫入第一行各列的數據 Row head = sheet.createRow(0); for (int i = 0; i < CELL_HEADS.size(); i++) { Cell cell = head.createCell(i); cell.setCellValue(CELL_HEADS.get(i)); cell.setCellStyle(cellStyle); } return sheet; } /** * 設置第一行表頭的樣式 * * @param workbook 工作簿對象 * @return 單元格樣式對象 */ private static CellStyle buildHeadCellStyle(Workbook workbook) { CellStyle style = workbook.createCellStyle(); //對齊方式設置 style.setAlignment(HorizontalAlignment.CENTER); //邊框顏色和寬度設置 style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(IndexedColors.BLACK.getIndex()); // 下邊框 style.setBorderLeft(BorderStyle.THIN); style.setLeftBorderColor(IndexedColors.BLACK.getIndex()); // 左邊框 style.setBorderRight(BorderStyle.THIN); style.setRightBorderColor(IndexedColors.BLACK.getIndex()); // 右邊框 style.setBorderTop(BorderStyle.THIN); style.setTopBorderColor(IndexedColors.BLACK.getIndex()); // 上邊框 //設置背景顏色 style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex()); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); //粗體字設置 Font font = workbook.createFont(); font.setBold(true); style.setFont(font); return style; } /** * 將數據轉換成行 * * @param data 源數據 * @param row 行對象 */ private static void convertDataToRow(Workbook workbook, ExcelDataVO data, Row row) { int cellNum = 0; Cell cell; //對特殊數值設置顏色 CellStyle cellStyle = workbook.createCellStyle(); //字體設置 Font font = workbook.createFont(); font.setBold(true); font.setColor(IndexedColors.GREEN.getIndex()); cellStyle.setFont(font); // 文件名 cell = row.createCell(cellNum++); cell.setCellValue(data.getFileName()); // 簽名時間 cell = row.createCell(cellNum++); cell.setCellValue(null == data.getSignDate() ? '' : data.getSignDate()); // 有效期 cell = row.createCell(cellNum++); cell.setCellValue(null == data.getValidBefore() ? '' : data.getValidBefore()); // 有效期 cell = row.createCell(cellNum++); cell.setCellValue(null == data.getValidAfter() ? '' : data.getValidAfter()); //主題 cell = row.createCell(cellNum++); cell.setCellValue(null == data.getSubject() ? '' : data.getSubject()); //序列號 cell = row.createCell(cellNum++); cell.setCellValue(null == data.getSerialNumber() ? '' : data.getSerialNumber()); //是否通過驗簽 cell = row.createCell(cellNum); if (data.getIsEffective()) { cell.setCellValue('簽名有效'); } else { cell.setCellValue('簽名無效'); cell.setCellStyle(cellStyle); } } public static void writeExcel(List<ExcelDataVO> dataVOList, String exportFilePath) { // 寫入數據到工作簿對象內 Workbook workbook = ExcelWriter.exportData(dataVOList); // 以文件的形式輸出工作簿對象 FileOutputStream fileOut = null; try { File exportFile = new File(exportFilePath); if (!exportFile.exists()) {boolean newFile = exportFile.createNewFile();if (!newFile) { System.out.println('文件創建失敗');} } fileOut = new FileOutputStream(exportFilePath); workbook.write(fileOut); fileOut.flush(); } catch (Exception e) { System.out.println('輸出Excel時發生錯誤，錯誤原因：' + e.getMessage()); } finally { try {if (null != fileOut) { fileOut.close();}workbook.close(); } catch (IOException e) {System.out.println('關閉輸出流時發生錯誤，錯誤原因：' + e.getMessage()); } } }}public class VerifySignature { private static String fromDirPath; private static String toFilePath; public static void main(String[] args) { final JFrame jf = new JFrame('測試窗口'); jf.setSize(400, 250); jf.setLocationRelativeTo(null); jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); JPanel panel = new JPanel(); // 創建文本區域, 用于顯示相關信息 final JTextArea msgTextArea = new JTextArea(10, 30); msgTextArea.setLineWrap(true); panel.add(msgTextArea); JButton openBtn = new JButton('選擇文件路徑'); openBtn.addActionListener(e -> showFileOpenDialog(jf, msgTextArea)); panel.add(openBtn); JButton saveBtn = new JButton('結果保存位置'); saveBtn.addActionListener(e -> showFileSaveDialog(jf, msgTextArea)); panel.add(saveBtn); jf.setContentPane(panel); jf.setVisible(true); JButton enSureBtn = new JButton('確認'); enSureBtn.addActionListener(e -> enSureListener(jf)); panel.add(enSureBtn); jf.setContentPane(panel); jf.setVisible(true); } /* * 打開文件 */ private static void showFileOpenDialog(Component parent, JTextArea msgTextArea) { // 創建一個默認的文件選取器 JFileChooser fileChooser = new JFileChooser(); // 設置默認顯示的文件夾為當前文件夾 fileChooser.setCurrentDirectory(new File('.')); // 設置文件選擇的模式（只選文件、只選文件夾、文件和文件均可選） fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); // 設置是否允許多選 fileChooser.setMultiSelectionEnabled(false);// // 添加可用的文件過濾器（FileNameExtensionFilter 的第一個參數是描述, 后面是需要過濾的文件擴展名 可變參數）// fileChooser.addChoosableFileFilter(new FileNameExtensionFilter('zip(*.zip, *.rar)', 'zip', 'rar'));//// // 設置默認使用的文件過濾器// fileChooser.setFileFilter(new FileNameExtensionFilter('image(*.jpg, *.png, *.gif)', 'jpg', 'png', 'gif')); // 打開文件選擇框（線程將被阻塞, 直到選擇框被關閉） int result = fileChooser.showOpenDialog(parent); if (result == JFileChooser.APPROVE_OPTION) { // 如果點擊了'確定', 則獲取選擇的文件路徑 File file = fileChooser.getSelectedFile(); fromDirPath = file.getAbsolutePath(); msgTextArea.append('選擇源文件: ' + fromDirPath + 'nn'); } } /* * 選擇文件保存路徑 */ private static void showFileSaveDialog(Component parent, JTextArea msgTextArea) { // 創建一個默認的文件選取器 JFileChooser fileChooser = new JFileChooser(); //把時間戳經過處理得到期望格式的時間 Date date = new Date(); SimpleDateFormat format0 = new SimpleDateFormat('yyyyMMddHHmmss'); String now = format0.format(date.getTime()); // 設置打開文件選擇框后默認輸入的文件名 fileChooser.setSelectedFile(new File(now + '.xlsx')); // 打開文件選擇框（線程將被阻塞, 直到選擇框被關閉） int result = fileChooser.showSaveDialog(parent); if (result == JFileChooser.APPROVE_OPTION) { // 如果點擊了'保存', 則獲取選擇的保存路徑 File file = fileChooser.getSelectedFile(); toFilePath = file.getAbsolutePath(); msgTextArea.append('結果文件路徑: ' + toFilePath + 'nn'); } } //找到需要的內容 public final static Pattern pattern = Pattern.compile('[Subject].*?O=(.*?),.*?[Issuer](.*?)[Serial Number](.*?)[Not Before](.*?)[Not After](.*?)[Thumbprint](.*?)'); // 剔除特殊字符 public final static Pattern replacePattern = Pattern.compile('t|r|n'); /** * 查找某個路徑下的所有pdf文件 * * @return 所有的pdf絕對路徑 */ public static HashSet<String> listDir(String path) { HashSet<String> FileNameString = new HashSet<String>(); File file = new File(path); //獲取其file對象 File[] fs = file.listFiles(); //遍歷path下的文件和目錄，放在File數組中 if (fs == null) { System.out.println(path + '路徑下沒有文件'); return null; } //遍歷File[]數組 for (File f : fs) { String fileName = String.valueOf(f); if (!f.isDirectory() && fileName.toLowerCase().endsWith('.pdf')) //若非目錄(即文件)，則打印FileNameString.add(fileName); } return FileNameString; } /** * 檢驗pdf文件是否簽名 * * @param filePath pdf文件絕對路徑 */ public static ExcelDataVO checkPdf(String filePath) { //創建PdfDocument實例 PdfDocument doc = new PdfDocument(); //創建結果集 ExcelDataVO excelDataVO = new ExcelDataVO(); //文件名,注意windows下應該是,linux下是/ String fileName = filePath.substring(filePath.lastIndexOf('') + 1); excelDataVO.setFileName(fileName); //加載含有簽名的PDF文件 doc.loadFromFile(filePath); //獲取域集合 PdfFormWidget pdfFormWidget = (PdfFormWidget) doc.getForm(); PdfFormFieldWidgetCollection pdfFormFieldWidgetCollection = pdfFormWidget.getFieldsWidget();// int countCollection = pdfFormFieldWidgetCollection.getCount();// System.out.println('共發現' + countCollection + '個域'); //遍歷域 for (int i = 0; i < pdfFormFieldWidgetCollection.getCount(); i++) { //判定是否為簽名域 if (pdfFormFieldWidgetCollection.get(i) instanceof PdfSignatureFieldWidget) {//獲取簽名域PdfSignatureFieldWidget signatureFieldWidget = (PdfSignatureFieldWidget) pdfFormFieldWidgetCollection.get(i);//獲取簽名時間PdfSignature signature = signatureFieldWidget.getSignature();excelDataVO.setSignDate(String.valueOf(signature.getDate()));//獲取簽名的內容PdfCertificate certificate = signature.getCertificate();// System.out.println('Issuer:' + certificate.getIssuer());//System.out.println('Subject:' + certificate.getSubject());//System.out.println('---------');//excelDataVO.setSubject(String.valueOf(certificate.getSubject()));String certificateString = certificate.toString();Matcher m = replacePattern.matcher(certificateString);certificateString = m.replaceAll('');Matcher matcher = pattern.matcher(certificateString);while (matcher.find()) {// String group = matcher.group(0); String subject = matcher.group(1);// String issuer = matcher.group(2); String serialNumber = matcher.group(3); String before = matcher.group(4); String after = matcher.group(5);// String sha1 = matcher.group(6); excelDataVO.setSubject(subject); excelDataVO.setSerialNumber(serialNumber); excelDataVO.setValidBefore(before); excelDataVO.setValidAfter(after);}//判定簽名是否有效boolean result = signature.verifySignature();excelDataVO.setIsEffective(result);if (result) { return excelDataVO;} } } return excelDataVO; } /* * 開始執行業務邏輯 */ private static void enSureListener(JFrame parent) { parent.dispose(); System.out.println('開始驗簽...'); //從某個路徑下獲取所有的pdf文件路徑 HashSet<String> filePaths = listDir(fromDirPath); if (filePaths == null) { return; } List<ExcelDataVO> excelDataVOS = new ArrayList<>(); for (String filePath : filePaths) { ExcelDataVO excelDataVO = checkPdf(filePath); excelDataVOS.add(excelDataVO); } ExcelWriter.writeExcel(excelDataVOS, toFilePath); System.out.println('驗簽完成...'); }}

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