- package copyImage;
- import java.io.BufferedInputStream;
- import java.io.BufferedOutputStream;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.io.IOException;
- public class CopyImageDemo {
- public static void main(String[] args) throws IOException {
- File stri = new File("e:\地质灾害隐患分布图.jpg");//源文件对象
- File stro = new File("f:\地质灾害隐患分布图.jpg");//输出文件对象
- //bytecopy(stri, stro);
- //bytecopy1(stri, stro);
- //bufferedbytecopy(stri, stro);
- bufferedbytecopy1(stri, stro);
- }
- // 方式一:基本字节流
- public static void bytecopy(File stri, File stro) throws IOException {
- FileInputStream fis = new FileInputStream(stri);
- FileOutputStream fos = new FileOutputStream(stro);
- int b = 0;
- while ((b = fis.read()) != -1) {
- fos.write(b);
- }
- fos.close();
- fis.close();
- }
- // 方式二:基本字节流数组流
- public static void bytecopy1(File stri, File stro) throws IOException {
- FileInputStream fis = new FileInputStream(stri);
- FileOutputStream fos = new FileOutputStream(stro);
- int b = 0;
- byte[] by = new byte[1024];
- while ((b = fis.read(by)) != -1) {
- fos.write(by, 0, b);
- }
- fos.close();
- fis.close();
- }
- // 高效字节缓冲流
- public static void bufferedbytecopy(File stri, File stro)
- throws IOException {
- BufferedInputStream bis = new BufferedInputStream(new FileInputStream(
- stri));
- BufferedOutputStream bos = new BufferedOutputStream(
- new FileOutputStream(stro));
- int b = 0;
- while ((b = bis.read()) != -1) {
- bos.write(b);
- }
- bos.close();
- bis.close();
- }
- // 高效字节数组缓冲流
- public static void bufferedbytecopy1(File stri, File stro)
- throws IOException {
- BufferedInputStream bis = new BufferedInputStream(new FileInputStream(
- stri));
- BufferedOutputStream bos = new BufferedOutputStream(
- new FileOutputStream(stro));
- int b = 0;
- byte[] by = new byte[1024];
- while ((b = bis.read(by)) != -1) {
- bos.write(by, 0, b);
- }
- bos.close();
- bis.close();
- }
- }
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