java实现文件或图片拷贝

import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;public class ImageAndFileCopy {public static final String OLDPATH = "C://head2.jpg";public static final String NEWPATH = "d://111.jpg";/** * @param args */public static void main(String[] args) {// 稍微简洁的处理方法//  try { // System.out.println(request.getContextPath());//FileInputStream imageInput = new FileInputStream("C://head2.jpg");//FileOutputStream imageOutput = new FileOutputStream("d://111.jpg");//byte[] buf = new byte[imageInput.available()];//imageInput.read(buf);//imageOutput.write(buf);//imageInput.close();//imageOutput.close();//System.out.println("file copy success!");//} catch (IOException e) {//System.out.println("copy file failed!");//}ImageAndFileCopy testMain = new ImageAndFileCopy();testMain.imageCopy();}public void imageCopy() {File old = new File(ImageAndFileCopy.OLDPATH);File newImage = new File(ImageAndFileCopy.NEWPATH);// newImage.mkdirs();FileInputStream imageInput = null;FileOutputStream imageOutput = null;try {if (!old.exists()) {System.out.println("the file is not exists");} else {imageInput = new FileInputStream(old);if (!newImage.exists()) {// newImage.mkdir();newImage.createNewFile();}imageOutput = new FileOutputStream(newImage + "/"+ old.getName());byte[] temp = new byte[1000];int size = imageInput.read(temp);while (size != -1) {imageOutput.write(temp);size = imageInput.read(temp);}System.out.println("the File Copy is success!");}} catch (FileNotFoundException fileNot) {System.out.println("the File Copy is Failed!");fileNot.printStackTrace();} catch (IOException e) {e.printStackTrace();System.out.println("the File Copy is Failed!");} finally {try {imageInput.close();imageOutput.close();} catch (Exception ex) {}}}}

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