1.需要加入 依赖

metadata-extractor.jar

依赖如下

com.drewnoakes

metadata-extractor

2.11.0

org.springframework.boot

spring-boot-starter-thymeleaf

org.springframework.boot

spring-boot-starter-web

org.springframework.boot

spring-boot-starter-test

test

2.主要看工具类，ImageUtil，因为是mvc上传图片，所以之前参数我参考别人代码 改了一下.

package com.huarui.util;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.RenderingHints;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.HashMap;

import java.util.Map;

import javax.imageio.ImageIO;

import com.drew.imaging.ImageMetadataReader;

import com.drew.imaging.ImageProcessingException;

import com.drew.metadata.Directory;

import com.drew.metadata.Metadata;

import com.drew.metadata.Tag;

public class ImageUtil {

public static Map getExif(InputStream inputStream) {

Map map = new HashMap();

try {

Metadata metadata = ImageMetadataReader.readMetadata(inputStream);

map = printExif(metadata);

} catch (ImageProcessingException e) {

System.out.println(e.getMessage());

} catch (IOException e) {

System.out.println(e.getMessage());

}

return map;

}

// 获取exif信息，将旋转角度信息拿到

private static Map printExif(Metadata metadata) {

Map map = new HashMap();

String tagName = null;

String desc = null;

for (Directory directory : metadata.getDirectories()) {

for (Tag tag : directory.getTags()) {

tagName = tag.getTagName();

desc = tag.getDescription();

if (tagName.equals("Orientation")) {

map.put("Orientation", desc);

}

}

}

return map;

}

public static int getAngle(Map map) {

int ro = 0;

if(map.get("Orientation")!=null) {

String ori = map.get("Orientation").toString();

if (ori.indexOf("90") >= 0) {

ro = 1;

} else if (ori.indexOf("180") >= 0) {

ro = 2;

} else if (ori.indexOf("270") >= 0) {

ro = 3;

}

}

return ro;

}

public static BufferedImage getBufferedImg(BufferedImage src,int width, int height, int ro) {

int angle = (int) (90 * ro);

int type = src.getColorModel().getTransparency();

int wid = width;

int hei = height;

if (ro % 2 != 0) {

int temp = width;

width = height;

height = temp;

}

Rectangle re = new Rectangle(new Dimension(width, height));

BufferedImage BfImg = null;

BfImg = new BufferedImage(re.width, re.height, type);

Graphics2D g2 = BfImg.createGraphics();

g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g2.rotate(Math.toRadians(angle), re.width / 2,re.height / 2);

g2.drawImage(src, (re.width - wid) / 2, (re.height - hei) / 2, null);

g2.dispose();

return BfImg;

}

//获得图片的高

public static int getHeight(InputStream is) {

BufferedImage src = null;

int height = -1;

try {

src = ImageIO.read(is);

height = src.getHeight();

} catch (Exception e) {

System.out.println(e.getMessage());

}

return height;

}

//获得图片的宽

public static int getWidth(InputStream is) {

BufferedImage src = null;

int width = -1;

try {

src = ImageIO.read(is);

width = src.getWidth();

} catch (Exception e) {

System.out.println(e.getMessage());

}

return width;

}

}

3.Ctroller

package com.huarui.action;

import com.huarui.util.ImageUtil;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.ResponseBody;

import org.springframework.web.multipart.MultipartFile;

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

@Controller

public class UploadController {

@RequestMapping("/upload")

public @ResponseBody String fileUpload(MultipartFile file) throws IOException {

File localFile = new File("e://a.jpg");

String ex = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));

//图片翻转90

int angle = ImageUtil.getAngle(ImageUtil.getExif(file.getInputStream()));

BufferedImage bf =ImageUtil.getBufferedImg(ImageIO.read(file.getInputStream()), ImageUtil.getWidth(file.getInputStream()), ImageUtil.getHeight(file.getInputStream()), angle);

ImageIO.write(bf, ex.substring(1), localFile);

//度问题

return localFile.getAbsolutePath();

}

@RequestMapping("/")

public String index(){

return "test";

}

}

亲测有效，附上链接->