java获取webp格式图片宽和高 以及普通文件的宽和高 图片宽高

    // 主图地址_wh        
        String imgFileName1 = "";        
        String[] fileNames;        
        if (facePathFile != null) {        
            fileNames = uploadFile(facePathFile, facePathFileFileName, "img");        
            imgFileName1 = fileNames[0];        
            bean.setFacePath(imgFileName1);        
            try {        
                    
                    // ImageIO.read报错的解决方法
                    String fileType = ImgeMimeTypeUtils.getMimeType(facePathFile.getAbsolutePath());
                    if(fileType != null && "image/webp".equals(fileType)){
                         FileInputStream file =  new FileInputStream(facePathFile);
                            byte[] bytes = new byte[30];
                            file.read(bytes,0,bytes.length);
                           int width = ((int) bytes[27] & 0xff)<<8 | ((int) bytes[26] & 0xff);
                           int height = ((int) bytes[29] & 0xff)<<8 | ((int) bytes[28] & 0xff);
                            bean.setThumbWidth(width);        
                            bean.setThumbHeight(height);
                    }else{

                      // 普通图片 获取宽高
                            BufferedImage sourceImg;        
                            sourceImg = ImageIO.read(facePathFile);        
                            bean.setThumbWidth(sourceImg.getWidth());        
                            bean.setThumbHeight(sourceImg.getHeight());
                    }
                    
            } catch (Exception e) {        
                try {        
                    ThumbnailConvert tc = new ThumbnailConvert();        
                    tc.setCMYK_COMMAND(facePathFile.getAbsolutePath());        
                    Image image = null;        
                    image = Toolkit.getDefaultToolkit().getImage(        
                            facePathFile.getAbsolutePath());        
                    MediaTracker mediaTracker = new MediaTracker(        
                            new Container());        
                    mediaTracker.addImage(image, 0);        
                    mediaTracker.waitForID(0);        
        
                    bean.setThumbWidth(image.getWidth(null));        
                    bean.setThumbHeight(image.getHeight(null));        
                } catch (Exception e1) {        
                    bean.setThumbWidth(0);        
                    bean.setThumbHeight(0);        
                }        
            }
                    

 

package com.ebillion.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

public class ImgeMimeTypeUtils {

	public static void main(String[] args) {

		String fileHead="E:/user_notes_mp4/meishi_video/100073853205/mp4_to_webp/";
		
		 String copyFileHead = fileHead + "aaatimg.gif";
		File file1 = new File(copyFileHead);
		File file2 = new File(
				"F:/log_aliyun_B-2/web_8559UjhSZR3wWTjqMsA_3_c.jpg");
		System.out.println(System.getProperty("java.library.path"));
		//System.load("/mnt/www/wwwroot/auto_caiji/lib/webp/libwebp-imageio.so");

		System.out.println(getMimeType(file1.getAbsolutePath()));
		
		/*try {
			if (file1.exists()) {
				BufferedImage im = ImageIO.read(file1);
				ImageIO.write(im, "jpg", file2);
			} else {
				System.out.println("--->file1.exists()--->" + file1.exists());
			}

		} catch (IOException e) {
			e.printStackTrace();
		}*/

		System.out.println("--->image convert success--->");
	}

	/**
	 * 获取文件的mimeType
	 * @param filename
	 * @return
	 */
	public static String getMimeType(String filename) {
		try {
			String mimeType = readType(filename);
			return String.format("image/%s", mimeType);
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}

	/**
	 * 读取文件类型
	 * @param filename
	 * @return
	 * @throws IOException
	 */
	public static String readType(String filename) throws IOException {

		FileInputStream fis = null;
		try {
			File f = new File(filename);
			if (!f.exists() || f.isDirectory() || f.length() < 8) {
				throw new IOException("the file [" + f.getAbsolutePath()
						+ "] is not image !");
			}

			fis = new FileInputStream(f);
			byte[] bufHeaders = readInputStreamAt(fis, 0, 8);
			if (isJPEGHeader(bufHeaders)) {
				long skiplength = f.length() - 2 - 8; //第一次读取时已经读了8个byte,因此需要减掉
				byte[] bufFooters = readInputStreamAt(fis, skiplength, 2);
				if (isJPEGFooter(bufFooters)) {
					return "jpeg";
				}
			}
			if (isPNG(bufHeaders)) {
				return "png";
			}
			if (isGIF(bufHeaders)) {

				return "gif";
			}
			if (isWEBP(bufHeaders)) {
				return "webp";
			}
			if (isBMP(bufHeaders)) {
				return "bmp";
			}
			if (isICON(bufHeaders)) {
				return "ico";
			}
			throw new IOException("the image's format is unkown!");

		} catch (FileNotFoundException e) {
			throw e;
		} finally {
			try {
				if (fis != null)
					fis.close();
			} catch (Exception e) {
			}
		}

	}

	/**
	 * 标示一致性比较
	 * @param buf 待检测标示
	 * @param markBuf 标识符字节数组
	 * @return 返回false标示标示不匹配
	 */
	private static boolean compare(byte[] buf, byte[] markBuf) {
		for (int i = 0; i < markBuf.length; i++) {
			byte b = markBuf[i];
			byte a = buf[i];

			if (a != b) {
				return false;
			}
		}
		return true;
	}

	/**
	 * 
	 * @param fis 输入流对象
	 * @param skiplength 跳过位置长度
	 * @param length 要读取的长度
	 * @return 字节数组
	 * @throws IOException
	 */
	private static byte[] readInputStreamAt(FileInputStream fis,
			long skiplength, int length) throws IOException {
		byte[] buf = new byte[length];
		fis.skip(skiplength); //
		int read = fis.read(buf, 0, length);
		return buf;
	}
	private static boolean isBMP(byte[] buf){
		 byte[] markBuf = "BM".getBytes(); //BMP图片文件的前两个字节
		 return compare(buf, markBuf);
		 }
		  
		 private static boolean isICON(byte[] buf) {
		 byte[] markBuf = {0, 0, 1, 0, 1, 0, 32, 32};
		 return compare(buf, markBuf);
		 }
		 private static boolean isWEBP(byte[] buf) {
		 byte[] markBuf = "RIFF".getBytes(); //WebP图片识别符
		 return compare(buf, markBuf);
		 }
		 
		 private static boolean isGIF(byte[] buf) { 
		 byte[] markBuf = "GIF89a".getBytes(); //GIF识别符
		 if(compare(buf, markBuf))
		 {
		  return true;
		 }
		 markBuf = "GIF87a".getBytes(); //GIF识别符
		 if(compare(buf, markBuf))
		 {
		  return true;
		 }
		 return false;
		 }
		 private static boolean isPNG(byte[] buf) { 
		 byte[] markBuf = {(byte) 0x89,0x50,0x4E,0x47,0x0D,0x0A,0x1A,0x0A}; //PNG识别符
		  // new String(buf).indexOf("PNG")>0 //也可以使用这种方式
		 return compare(buf, markBuf);
		 }
		 
		 private static boolean isJPEGHeader(byte[] buf) {
		 byte[] markBuf = {(byte) 0xff, (byte) 0xd8}; //JPEG开始符 
		 return compare(buf, markBuf);
		 }
		  
		 private static boolean isJPEGFooter(byte[] buf)//JPEG结束符
		 {
		 byte[] markBuf = {(byte) 0xff, (byte) 0xd9}; 
		 return compare(buf, markBuf);
		 }

}