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修复TIF转换pdf问题 

修复TIF转换pdf问题

Signed-off-by: 高雄 <admin@cxcp.com>
pull/84/head
高雄 2023-04-03 07:09:30 +00:00 committed by Gitee
parent f2cfb4cf4a
commit 33277bc457
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GPG Key ID: 173E9B9CA92EEF8F
1 changed files with 46 additions and 108 deletions
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154
server/src/main/java/cn/keking/utils/ConvertPicUtil.java
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@ -1,16 +1,17 @@
package cn.keking.utils; package cn.keking.utils;
import com.lowagie.text.Document; import cn.keking.config.ConfigConstants;
import com.lowagie.text.Image;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.RandomAccessFileOrArray;
import com.lowagie.text.pdf.codec.TiffImage;
import com.sun.media.jai.codec.*; import com.sun.media.jai.codec.*;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import com.itextpdf.text.Document;
import com.itextpdf.text.Image;
import com.itextpdf.text.io.FileChannelRandomAccessSource;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.pdf.RandomAccessFileOrArray;
import com.itextpdf.text.pdf.codec.TiffImage;
import javax.media.jai.JAI; import javax.media.jai.JAI;
import javax.media.jai.RenderedOp; import javax.media.jai.RenderedOp;
import java.awt.image.RenderedImage; import java.awt.image.RenderedImage;
@ -18,13 +19,14 @@ import java.awt.image.renderable.ParameterBlock;
import java.io.File; import java.io.File;
import java.io.FileOutputStream; import java.io.FileOutputStream;
import java.io.IOException; import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.List; import java.util.List;
public class ConvertPicUtil { public class ConvertPicUtil {
private final static Logger logger = LoggerFactory.getLogger(ConvertPicUtil.class); private final static Logger logger = LoggerFactory.getLogger(ConvertPicUtil.class);
private final static String fileDir = ConfigConstants.getFileDir();
/** /**
* Tif 转 JPG。 * Tif 转 JPG。
* *
@ -42,25 +44,21 @@ public class ConvertPicUtil {
logger.info("找不到文件【" + strInputFile + "】"); logger.info("找不到文件【" + strInputFile + "】");
return null; return null;
} }
strInputFile = strInputFile.replaceAll("\\\\", "/"); strInputFile = strInputFile.replaceAll("\\\\", "/");
strOutputFile = strOutputFile.replaceAll("\\\\", "/"); strOutputFile = strOutputFile.replaceAll("\\\\", "/");
FileSeekableStream fileSeekStream = null; FileSeekableStream fileSeekStream = null;
try { try {
JPEGEncodeParam jpegEncodeParam = new JPEGEncodeParam(); JPEGEncodeParam jpegEncodeParam = new JPEGEncodeParam();
TIFFEncodeParam tiffEncodeParam = new TIFFEncodeParam(); TIFFEncodeParam tiffEncodeParam = new TIFFEncodeParam();
tiffEncodeParam.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4); tiffEncodeParam.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4);
tiffEncodeParam.setLittleEndian(false); tiffEncodeParam.setLittleEndian(false);
String jpgname = strInputFile.replace(fileDir.replace("\\","/"), "");
String strFilePrefix = strInputFile.substring(strInputFile.lastIndexOf("/") + 1, strInputFile.lastIndexOf(".")); int index = jpgname.lastIndexOf(".");
String strFilePrefix = jpgname.substring(0, index);
fileSeekStream = new FileSeekableStream(strInputFile); fileSeekStream = new FileSeekableStream(strInputFile);
ImageDecoder imageDecoder = ImageCodec.createImageDecoder("TIFF", fileSeekStream, null); ImageDecoder imageDecoder = ImageCodec.createImageDecoder("TIFF", fileSeekStream, null);
int intTifCount = imageDecoder.getNumPages(); int intTifCount = imageDecoder.getNumPages();
logger.info("该tif文件共有【" + intTifCount + "】页"); logger.info("该tif文件共有【" + intTifCount + "】页");
String strJpgPath; String strJpgPath;
String strJpgUrl; String strJpgUrl;
if (intTifCount == 1) { if (intTifCount == 1) {
@ -87,9 +85,7 @@ public class ConvertPicUtil {
strJpg = strJpgPath + "/" + i + ".jpg"; strJpg = strJpgPath + "/" + i + ".jpg";
strJpgUrl = strFilePrefix + "/" + i + ".jpg"; strJpgUrl = strFilePrefix + "/" + i + ".jpg";
} }
File fileJpg = new File(strJpg); File fileJpg = new File(strJpg);
// 如果文件不存在，则生成 // 如果文件不存在，则生成
if (!fileJpg.exists()) { if (!fileJpg.exists()) {
RenderedImage renderedImage = imageDecoder.decodeAsRenderedImage(i); RenderedImage renderedImage = imageDecoder.decodeAsRenderedImage(i);
@ -98,13 +94,11 @@ public class ConvertPicUtil {
pb.add(fileJpg.toString()); pb.add(fileJpg.toString());
pb.add("JPEG"); pb.add("JPEG");
pb.add(jpegEncodeParam); pb.add(jpegEncodeParam);
RenderedOp renderedOp = JAI.create("filestore", pb); RenderedOp renderedOp = JAI.create("filestore", pb);
renderedOp.dispose(); renderedOp.dispose();
logger.info("每页分别保存至： " + fileJpg.getCanonicalPath()); logger.info("每页分别保存至： " + fileJpg.getCanonicalPath());
} else { } else {
logger.info("JPG文件已存在： " + fileJpg.getCanonicalPath()); // logger.info("JPG文件已存在： " + fileJpg.getCanonicalPath());
} }
listImageFiles.add(strJpgUrl); listImageFiles.add(strJpgUrl);
@ -131,101 +125,45 @@ public class ConvertPicUtil {
* @param strJpgFile 输入的jpg的路径和文件名 * @param strJpgFile 输入的jpg的路径和文件名
* @param strPdfFile 输出的pdf的路径和文件名 * @param strPdfFile 输出的pdf的路径和文件名
*/ */
public static void convertJpg2Pdf(String strJpgFile, String strPdfFile) { private static final int FIT_WIDTH = 500;
Document document = new Document(); private static final int FIT_HEIGHT = 900;
// 设置文档页边距 public static boolean convertJpg2Pdf(String strJpgFile, String strPdfFile) {
document.setMargins(0, 0, 0, 0); Document document= null;
RandomAccessFileOrArray rafa = null;
FileOutputStream fos = null;
try { try {
fos = new FileOutputStream(strPdfFile); document = new Document();
PdfWriter.getInstance(document, fos); PdfWriter.getInstance(document, new FileOutputStream(strPdfFile));
// 打开文档
document.open(); document.open();
// 获取图片的宽高 rafa = new RandomAccessFileOrArray(new FileChannelRandomAccessSource(new RandomAccessFile(strJpgFile, "r").getChannel()));
Image image = Image.getInstance(strJpgFile); int pages = TiffImage.getNumberOfPages(rafa);
float floatImageHeight = image.getScaledHeight(); Image image;
float floatImageWidth = image.getScaledWidth(); for (int i = 1; i <= pages; i++) {
// 设置页面宽高与图片一致 try {
Rectangle rectangle = new Rectangle(floatImageWidth, floatImageHeight); image = TiffImage.getTiffImage(rafa, i);
document.setPageSize(rectangle); image.scaleToFit(FIT_WIDTH, FIT_HEIGHT);
// 图片居中 document.add(image);
image.setAlignment(Image.ALIGN_CENTER); } catch (Exception e) {
//新建一页添加图片 document.close();
document.newPage(); rafa.close();
document.add(image); e.printStackTrace();
} catch (Exception ioe) { }
ioe.printStackTrace(); }
} finally { document.close();
//关闭文档 rafa.close();
return true;
}
catch (Exception e)
{
System.out.println("错误:"+ e.getMessage());
}
finally {
document.close(); document.close();
try { try {
assert fos != null; rafa.close();
fos.flush();
fos.close();
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); e.printStackTrace();
} }
} }
return false;
} }
/**
* 将Tif图片转换为Pdf文件（支持多页Tif）
*
* @param strTifFile 输入的tif的路径和文件名
* @param strPdfFile 输出的pdf的路径和文件名
* @return File
*/
public static File convertTif2Pdf(String strTifFile, String strPdfFile) {
try {
RandomAccessFileOrArray rafa = new RandomAccessFileOrArray(strTifFile);
Document document = new Document();
// 设置文档页边距
document.setMargins(0, 0, 0, 0);
PdfWriter.getInstance(document, new FileOutputStream(strPdfFile));
document.open();
int intPages = TiffImage.getNumberOfPages(rafa);
Image image;
File filePDF;
if (intPages == 1) {
String strJpg = strTifFile.substring(0, strTifFile.lastIndexOf(".")) + ".jpg";
File fileJpg = new File(strJpg);
List<String> listPic2Jpg = convertTif2Jpg(strTifFile, strJpg);
if (listPic2Jpg != null && fileJpg.exists()) {
convertJpg2Pdf(strJpg, strPdfFile);
}
} else {
for (int i = 1; i <= intPages; i++) {
image = TiffImage.getTiffImage(rafa, i);
// 设置页面宽高与图片一致
Rectangle pageSize = new Rectangle(image.getScaledWidth(), image.getScaledHeight());
document.setPageSize(pageSize);
// 图片居中
image.setAlignment(Image.ALIGN_CENTER);
//新建一页添加图片
document.newPage();
document.add(image);
}
document.close();
}
rafa.close();
filePDF = new File(strPdfFile);
return filePDF;
} catch (Exception e) {
logger.error(e.getMessage(), e);
}
return null;
}
} }