/**
* 保持上传照片的图片方向不发生调整
*
* @param filePath 图片的文件路径
*/
public static void MaintainOrientation(String filePath) {
try {
File file = new File(filePath);
if (!file.exists()) {
logger.fatal(new FileNotFoundException());
return;
}
Metadata metadata = ImageMetadataReader.readMetadata(file);
Directory directory = metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
int orientation = 0;
if (null != directory && directory.containsTag(ExifSubIFDDirectory.TAG_ORIENTATION)) {
orientation = directory.getInt(ExifSubIFDDirectory.TAG_ORIENTATION);
logger.debug(filePath + " 's orientation is :" + orientation);
}
String format = FileUtil.getFileSuffix(filePath);
switch (orientation) {
// case 1:
// return "Top, left side (Horizontal / normal)";
// case 2:
// return "Top, right side (Mirror horizontal)";
case 3:
// return "Bottom, right side (Rotate 180)";
BufferedImage old_img3 = (BufferedImage) ImageIO.read(file);
int w3 = old_img3.getWidth();
int h3 = old_img3.getHeight();
BufferedImage new_img3 = new BufferedImage(w3, h3, BufferedImage.TYPE_INT_BGR);
Graphics2D g2d3 = new_img3.createGraphics();
AffineTransform origXform3 = g2d3.getTransform();
AffineTransform newXform3 = (AffineTransform) (origXform3.clone());
// center of rotation is center of the panel
// double xRot3 = w3/2.0;
newXform3.rotate(Math.toRadians(180.0), w3 / 2.0, h3 / 2.0); // 旋转180度
g2d3.setTransform(newXform3);
// draw image centered in panel
g2d3.drawImage(old_img3, 0, 0, null);
// Reset to Original
g2d3.setTransform(origXform3);
// 写到新的文件
FileOutputStream out3 = new FileOutputStream(file);
try {
ImageIO.write(new_img3, format, out3);
} finally {
out3.close();
}
break;
// case 4:
// return "Bottom, left side (Mirror vertical)";
// case 5:
// return "Left side, top (Mirror horizontal and rotate 270
// CW)";
case 6:
// return "Right side, top (Rotate 90 CW)";
BufferedImage old_img6 = (BufferedImage) ImageIO.read(file);
int w6 = old_img6.getWidth();
int h6 = old_img6.getHeight();
BufferedImage new_img6 = new BufferedImage(h6, w6, BufferedImage.TYPE_INT_BGR);
Graphics2D g2d6 = new_img6.createGraphics();
AffineTransform origXform6 = g2d6.getTransform();
AffineTransform newXform6 = (AffineTransform) (origXform6.clone());
// center of rotation is center of the panel
double xRot6 = h6 / 2.0;
newXform6.rotate(Math.toRadians(90.0), xRot6, xRot6); // 旋转90度
g2d6.setTransform(newXform6);
// draw image centered in panel
g2d6.drawImage(old_img6, 0, 0, null);
// Reset to Original
g2d6.setTransform(origXform6);
// 写到新的文件
FileOutputStream out6 = new FileOutputStream(file);
try {
ImageIO.write(new_img6, format, out6);
} finally {
out6.close();
}
break;
// case 7:
// return "Right side, bottom (Mirror horizontal and rotate 90
// CW)";
case 8:
// return "Left side, bottom (Rotate 270 CW)";
BufferedImage old_img8 = (BufferedImage) ImageIO.read(file);
int w8 = old_img8.getWidth();
int h8 = old_img8.getHeight();
BufferedImage new_img8 = new BufferedImage(h8, w8, BufferedImage.TYPE_INT_BGR);
Graphics2D g2d8 = new_img8.createGraphics();
AffineTransform origXform8 = g2d8.getTransform();
AffineTransform newXform8 = (AffineTransform) (origXform8.clone());
// center of rotation is center of the panel
double xRot8 = w8 / 2.0;
newXform8.rotate(Math.toRadians(270.0), xRot8, xRot8); // 旋转90度
g2d8.setTransform(newXform8);
// draw image centered in panel
g2d8.drawImage(old_img8, 0, 0, null);
// Reset to Original
g2d8.setTransform(origXform8);
// 写到新的文件
FileOutputStream out8 = new FileOutputStream(file);
try {
ImageIO.write(new_img8, format, out8);
} finally {
out8.close();
}
break;
// default:
// return String.valueOf(orientation);
}
} catch (Exception e) {
e.printStackTrace();
logger.fatal(e);
}
}
/**
* An application entry point. Takes the name of one or more files as arguments and prints the
* contents of all metadata directories to <code>System.out</code>.
*
* <p>If <code>-thumb</code> is passed, then any thumbnail data will be written to a file with
* name of the input file having <code>.thumb.jpg</code> appended.
*
* <p>If <code>-markdown</code> is passed, then output will be in markdown format.
*
* <p>If <code>-hex</code> is passed, then the ID of each tag will be displayed in hexadecimal.
*
* @param args the command line arguments
*/
public static void main(@NotNull String[] args) throws MetadataException, IOException {
Collection<String> argList = new ArrayList<String>(Arrays.asList(args));
boolean thumbRequested = argList.remove("-thumb");
boolean markdownFormat = argList.remove("-markdown");
boolean showHex = argList.remove("-hex");
if (argList.size() < 1) {
String version = ImageMetadataReader.class.getPackage().getImplementationVersion();
System.out.println("metadata-extractor version " + version);
System.out.println();
System.out.println(
String.format(
"Usage: java -jar metadata-extractor-%s.jar <filename> [<filename>] [-thumb] [-markdown] [-hex]",
version == null ? "a.b.c" : version));
System.exit(1);
}
for (String filePath : argList) {
long startTime = System.nanoTime();
File file = new File(filePath);
if (!markdownFormat && argList.size() > 1)
System.out.printf("\n***** PROCESSING: %s\n%n", filePath);
Metadata metadata = null;
try {
metadata = ImageMetadataReader.readMetadata(file);
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(1);
}
long took = System.nanoTime() - startTime;
if (!markdownFormat)
System.out.printf(
"Processed %.3f MB file in %.2f ms%n%n",
file.length() / (1024d * 1024), took / 1000000d);
if (markdownFormat) {
String fileName = file.getName();
String urlName = StringUtil.urlEncode(filePath);
ExifIFD0Directory exifIFD0Directory =
metadata.getFirstDirectoryOfType(ExifIFD0Directory.class);
String make =
exifIFD0Directory == null
? ""
: exifIFD0Directory.getString(ExifIFD0Directory.TAG_MAKE);
String model =
exifIFD0Directory == null
? ""
: exifIFD0Directory.getString(ExifIFD0Directory.TAG_MODEL);
System.out.println();
System.out.println("---");
System.out.println();
System.out.printf("# %s - %s%n", make, model);
System.out.println();
System.out.printf(
"<a href=\"https://raw.githubusercontent.com/drewnoakes/metadata-extractor-images/master/%s\">%n",
urlName);
System.out.printf(
"<img src=\"https://raw.githubusercontent.com/drewnoakes/metadata-extractor-images/master/%s\" width=\"300\"/><br/>%n",
urlName);
System.out.println(fileName);
System.out.println("</a>");
System.out.println();
System.out.println("Directory | Tag Id | Tag Name | Extracted Value");
System.out.println(":--------:|-------:|----------|----------------");
}
// iterate over the metadata and print to System.out
for (Directory directory : metadata.getDirectories()) {
String directoryName = directory.getName();
for (Tag tag : directory.getTags()) {
String tagName = tag.getTagName();
String description = tag.getDescription();
// truncate the description if it's too long
if (description != null && description.length() > 1024) {
description = description.substring(0, 1024) + "...";
}
if (markdownFormat) {
System.out.printf(
"%s|0x%s|%s|%s%n",
directoryName, Integer.toHexString(tag.getTagType()), tagName, description);
} else {
// simple formatting
if (showHex) {
System.out.printf(
"[%s - %s] %s = %s%n", directoryName, tag.getTagTypeHex(), tagName, description);
} else {
System.out.printf("[%s] %s = %s%n", directoryName, tagName, description);
}
}
}
// print out any errors
for (String error : directory.getErrors()) System.err.println("ERROR: " + error);
}
if (args.length > 1 && thumbRequested) {
ExifThumbnailDirectory directory =
metadata.getFirstDirectoryOfType(ExifThumbnailDirectory.class);
if (directory != null && directory.hasThumbnailData()) {
System.out.println("Writing thumbnail...");
directory.writeThumbnail(args[0].trim() + ".thumb.jpg");
} else {
System.out.println("No thumbnail data exists in this image");
}
}
}
}