Fri Aug 4 11:23:00 CST 2023 inscode

NyImageUtils.java

+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.imageio.ImageIO;
+import javax.swing.JComponent;
+import javax.swing.JFileChooser;
+import javax.swing.filechooser.FileFilter;
+
+import nc.bs.logging.Logger;
+import nc.vo.pub.BusinessException;
+
+import org.apache.commons.net.util.Base64;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.rendering.PDFRenderer;
+import org.apache.xmlbeans.impl.store.Path;
+
+import sun.misc.BASE64Encoder;
+
+import com.informix.util.dateUtil;
+import com.lowagie.text.pdf.codec.Base64.OutputStream;
+import com.spire.pdf.PdfDocument;
+import com.spire.pdf.graphics.PdfImageType;
+
+@SuppressWarnings("all")
+public class NyImageUtils {
+
+	public static List<String> getImageToString(JComponent jComponent) throws IOException, BusinessException {
+		List<String> list = new ArrayList<>();
+		File file = getFile(jComponent);
+		if (file == null) {
+			return null;
+		}
+		Logger.error("开始读取文件：" + file.getName());
+		if (file.getName().endsWith(".pdf")) {
+			list = pdfToImage(file);
+		} else if (file.getName().endsWith(".bmp")) {
+			list.add(Base64.encodeBase64String(bmpToImage(file)));
+		} else {
+			byte[] bytes = imageToBytes(file);
+			list.add(Base64.encodeBase64String(bytes));
+		}
+		return list;
+	}
+
+	private static byte[] bmpToImage(File file) {
+		byte[] data = null;
+		File newfile = null;
+		String result = null;
+		try {
+			String path = file.getPath();
+			result = path.replace("bmp", "jpg");
+			FileOutputStream out = new FileOutputStream(result);
+			newfile = new File(result);
+			ImageIO.write(ImageIO.read(file), "jpg", newfile);
+			data = imageToBytes(newfile);
+			// Files.deleteIfExists(Paths.get(result));
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		return data;
+	}
+	
+	public static List<String> sprPdfToImage_stream(byte[] returnBytes) throws BusinessException {
+		List<String> list = new ArrayList<String>();
+		PdfDocument pdf = new PdfDocument();
+		pdf.loadFromBytes(returnBytes);
+		for (int i = 0; i < pdf.getPages().getCount(); i++) {
+			// 将页面保存为图片，并设置DPI分辨率
+			BufferedImage image = pdf.saveAsImage(i, PdfImageType.Bitmap, 500, 500);
+			// 将图片保存为png格式
+			ByteArrayOutputStream fileByte = new ByteArrayOutputStream();
+			try {
+				ImageIO.write(image, "PNG", fileByte);
+				byte[] bytes = fileByte.toByteArray();
+				list.add(Base64.encodeBase64String(bytes));
+			} catch (IOException e) {
+				String msg = "解析pdf文件出错，" + e.getMessage();
+				Logger.error(msg);
+				throw new BusinessException(msg);
+			} finally {
+				pdf.close();
+			}
+
+		}
+		return list;
+	}
+
+	public static List<String> pdfToImage_Sprpdf(File file) throws BusinessException {
+		List<String> list = new ArrayList<String>();
+		PdfDocument pdf = new PdfDocument();
+		pdf.loadFromFile(file.toString());
+		for (int i = 0; i < pdf.getPages().getCount(); i++) {
+			// 将页面保存为图片，并设置DPI分辨率
+			BufferedImage image = pdf.saveAsImage(i, PdfImageType.Bitmap, 500, 500);
+			// 将图片保存为png格式
+			ByteArrayOutputStream fileByte = new ByteArrayOutputStream();
+			try {
+				ImageIO.write(image, "PNG", fileByte);
+				byte[] bytes = fileByte.toByteArray();
+				list.add(Base64.encodeBase64String(bytes));
+			} catch (IOException e) {
+				String msg = "解析pdf文件出错，" + e.getMessage();
+				Logger.error(msg);
+				throw new BusinessException(msg);
+			} finally {
+				pdf.close();
+			}
+
+		}
+		return list;
+	}
+
+	public static List<String> pdfToImage(File file) throws BusinessException {
+		List<String> list = new ArrayList<String>();
+		PDDocument doc = null;
+		try {
+			doc = PDDocument.load(file);
+			PDFRenderer renderer = new PDFRenderer(doc);
+			int pageCount = doc.getNumberOfPages();
+			for (int i = 0; i < pageCount; i++) {
+				BufferedImage image = renderer.renderImage(i, 2.0f);
+				ByteArrayOutputStream fileByte = new ByteArrayOutputStream();
+				ImageIO.write(image, "png", fileByte);
+				byte[] bytes = fileByte.toByteArray();
+				list.add(Base64.encodeBase64String(bytes));
+			}
+
+			return list;
+		} catch (IOException e) {
+			String msg = "解析pdf文件出错，" + e.getMessage();
+			Logger.error(msg);
+			throw new BusinessException(msg);
+		} finally {
+			if (null != doc) {
+				try {
+					doc.close();
+				} catch (IOException e) {
+				}
+			}
+		}
+	}
+
+	private static byte[] imageToBytes(File file) throws IOException {
+		if (file == null || !file.exists() || !file.isFile()) {
+			return new byte[0];
+		}
+		byte[] bytes = null;
+		FileInputStream fis = null;
+		try {
+			fis = new FileInputStream(file);
+			bytes = new byte[(int) file.length()];
+			fis.read(bytes);
+			return bytes;
+		} finally {
+			if (null != fis) {
+				fis.close();
+			}
+		}
+	}
+
+	private static File getFile(JComponent jComponent) {
+		File file = null;
+		JFileChooser choose = new JFileChooser();
+		choose.setAcceptAllFileFilterUsed(false);
+		choose.addChoosableFileFilter(new FileFilter() {
+			public boolean accept(File f) {
+				String fileName = f.getName();
+				return f.isDirectory() || fileName.endsWith(".pdf") || fileName.endsWith(".PDF") || fileName.endsWith(".gif") || fileName.endsWith(".GIF")
+						|| fileName.endsWith(".jpg") || fileName.endsWith(".JPG") || fileName.endsWith(".bmp") || fileName.endsWith(".BMP")
+						|| fileName.endsWith(".jpeg") || fileName.endsWith(".JPEG") || fileName.endsWith(".png") || fileName.endsWith(".PNG");
+			}
+
+			public String getDescription() {
+				return "支持的文件格式：.pdf .gif .jpg .bmp .png .jpeg ";
+			}
+		});
+		int retValue = choose.showOpenDialog(jComponent);
+		if (retValue == JFileChooser.APPROVE_OPTION) {
+			String filePath = ((File) choose.getSelectedFile()).getAbsolutePath();
+			/*
+			 * if (filePath == null || "".equals(filePath) ||
+			 * (filePath.indexOf(".xls") < 0 && filePath.indexOf(".xlsx") < 0))
+			 * { MessageDialog.showErrorDlg(jComponent, "错误", "请选择EXCEL文件！");
+			 * return null; }
+			 */
+			file = new File(filePath);
+
+		}
+		return file;
+	}
+
+}