package com.tiger.io;
import java.io.*;
import java.nio.file.*;
/**
 * 復(fù)制文件的三種方式
 * @author tiger
 * @Date 
 */
public class CopyFile {
 public static void main(String[] args) throws IOException, IOException {
 Path path = Paths.get("E:","17-06-15-am1.avi");
 String dest = "E:\\Copy電影.avi";
 copy01(path, dest);
 String src = "E:\\[Java典型應(yīng)用徹查1000例：Java入門].pdf";
 String dest1 = "E:\\CopyFile.pdf";
 copy02(src, dest1);
 //copy03(src, dest1);
 }
 
 /**
 * 利用Files工具copy
 * @param path
 * @param dest
 * @throws IOException
 * @throws IOException
 */
 public static void copy01(Path path,String dest) throws IOException, IOException{
 //利用Files工具類對(duì)文件進(jìn)行復(fù)制,簡(jiǎn)化編程，只需要寫一句。
 Files.copy(path, new FileOutputStream(dest));
 }
 
 /**
 * 利用字節(jié)流復(fù)制
 * @param src
 * @param dest
 * @throws IOException
 */
 public static void copy02(String src,String dest) throws IOException{
 InputStream is = new BufferedInputStream(new FileInputStream(src));
 OutputStream os = new BufferedOutputStream(new FileOutputStream(dest));
 //文件拷貝u，-- 循環(huán)+讀取+寫出
 byte[] b = new byte[10];//緩沖大小
 int len = 0;//接收長(zhǎng)度
 //讀取文件
 while (-1!=(len = is.read(b))) {
  //讀入多少，寫出多少，直到讀完為止。
  os.write(b,0,len);
 }
 //強(qiáng)制刷出數(shù)據(jù)
 os.flush();
 //關(guān)閉流，先開后關(guān)
 os.close();
 is.close();
 }
 
 /**
 * 字符流復(fù)制
 * @param src
 * @param dest
 * @throws IOException
 */
 public static void copy03(String src,String dest) throws IOException{
 //字符輸入流
 BufferedReader reader = new BufferedReader(new FileReader(src));
 //字符輸出流
 BufferedWriter writer = new BufferedWriter(new FileWriter(dest));
 char[] cbuf = new char[24];
 int len = 0;
 //邊讀入邊寫出
 while ((len = reader.read(cbuf)) != -1) {
  writer.write(cbuf, 0, len);
 }
 //關(guān)閉流
 writer.close();
 reader.close();
 }
}