ImageUtils.java
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package com.sincere.weigeng;
import com.drew.imaging.ImageMetadataReader;
import com.drew.imaging.jpeg.JpegMetadataReader;
import com.drew.metadata.Directory;
import com.drew.metadata.Metadata;
import com.drew.metadata.Tag;
import com.sun.imageio.plugins.png.PNGImageReader;
import org.apache.commons.lang.StringUtils;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
public class ImageUtils {
/* *//**
* 获取图片正确显示需要旋转的角度（顺时针）
* @return
*//*
public static int getRotateAngleForPhoto(String filePath){
File file = new File(filePath);
int angle = 0;
Metadata metadata;
try {
metadata = JpegMetadataReader.readMetadata(file);
Directory directory = metadata.getDirectory(ExifDirectory.class);
if(directory.containsTag(ExifDirectory.TAG_ORIENTATION)){
// Exif信息中方向
int orientation = directory.getInt(ExifDirectory.TAG_ORIENTATION);
// 原图片的方向信息
if(6 == orientation ){
//6旋转90
angle = 90;
}else if( 3 == orientation){
//3旋转180
angle = 180;
}else if( 8 == orientation){
//8旋转90
angle = 270;
}
}
} catch (JpegProcessingException e) {
e.printStackTrace();
} catch (MetadataException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return angle;
}*/
/**
* 获得图片调整角度
* make by dongxh 2017年11月1日下午3:40:20
* @param imgFile
* @return
*/
public static Integer getImgRotateAngle(String imgFile){
return 0;
/*int angel = 0;
try {
File file = new File(imgFile);
Metadata metadata = ImageMetadataReader.readMetadata(file);
for (Directory directory : metadata.getDirectories()) {
for (Tag tag : directory.getTags()) {
if (tag.getTagType() == ExifDirectoryBase.TAG_ORIENTATION) {
String description = tag.getDescription();
// System.out.println(description);
if (description.contains("90")) {
// 顺时针旋转90度
angel = 90;
} else if (description.contains("180")) {
// 顺时针旋转180度
angel = 180;
} else if (description.contains("270")) {
// 顺时针旋转270度
angel = 270;
}
}
}
}
// System.out.println(angel);
} catch (Exception e) {
e.printStackTrace();
}
return angel;*/
/*Integer angel = 0;
Metadata metadata = null;
try{
if(StringUtils.isBlank(imgFile))return angel;
File _img_file_ = new File(imgFile);
if(!_img_file_.exists())return angel;
metadata = JpegMetadataReader.readMetadata(_img_file_);
Directory directory = metadata.getDirectory(ExifDirectory.class);
Iterator iterator =directory.getTagIterator();
while (iterator.hasNext()){
System.out.println("directory:"+iterator.next().toString());
}
if(directory != null && directory.containsTag(ExifDirectory.TAG_ORIENTATION)){
int orientation = directory.getInt(ExifDirectory.TAG_ORIENTATION);
// 原图片的方向信息
if(6 == orientation ){
//6旋转90
angel = 90;
}else if( 3 == orientation){
//3旋转180
angel = 180;
}else if( 8 == orientation){
//8旋转90
angel = 270;
}
}
}catch(Exception e){
e.printStackTrace();
}
return angel;*/
}
/**
* 旋转照片
* @return
*/
public static String rotatePhonePhoto(String fullPath, int angel){
BufferedImage src;
try {
src = ImageIO.read(new File(fullPath));
int src_width = src.getWidth(null);
int src_height = src.getHeight(null);
int swidth=src_width;
int sheight=src_height;
if(angel==90||angel==270){
swidth = src_height;
sheight= src_width;
}
Rectangle rect_des = new Rectangle(new Dimension(swidth,sheight));
BufferedImage res = new BufferedImage(rect_des.width, rect_des.height,BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = res.createGraphics();
g2.translate((rect_des.width - src_width) / 2,
(rect_des.height - src_height) / 2);
g2.rotate(Math.toRadians(angel), src_width / 2, src_height / 2);
g2.drawImage(src, null, null);
ImageIO.write(res, "jpg", new File(fullPath));
} catch (IOException e) {
e.printStackTrace();
}
return fullPath;
}
}