JAVA 万能图片格式转换

package com.soqi; import java.awt.image.BufferedImage; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class TestDirImageBinary { static BASE64Encoder encoder = new sun.misc.BASE64Encoder(); static BASE64Decoder decoder = new sun.misc.BASE64Decoder(); public static void main(String[] args) { // System.out.println(getImageBinary()); base64StringToImage("c://Jellyfish.jpg","c://Jellyfish.cdr"); } static String getImageBinary(String fileName){ File f = new File(fileName); BufferedImage bi; try { bi = ImageIO.read(f); String fileType=getFileType(fileName); ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); ImageIO.write(bi, fileType, outputStream); byte[] bytes = outputStream.toByteArray(); return encoder.encodeBuffer(bytes).trim(); } catch (IOException e) { e.printStackTrace(); } return null; } static String getFileType(String fileName){ return fileName.substring(fileName.indexOf(".")+1,fileName.length()); } /** * 将其他格式的图片转换成CDR或其它文件格式 * @param sourceFileName * @param newFileName */ static void base64StringToImage(String sourceFileName,String newFileName){ try { String base64String =getImageBinary(sourceFileName); byte[] bytes1 = decoder.decodeBuffer(base64String); ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes1); BufferedImage bi1 =ImageIO.read(inputStream); File w2 = new File(newFileName);//可以是jpg,png,gif格式 ImageIO.write(bi1, getFileType(sourceFileName), w2);//不管输出什么格式图片，此处不需改动 } catch (IOException e) { e.printStackTrace(); } } }