拷貝圖片Java的代碼

拷貝圖片

package intputStream;

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

/**
 * @author 王金龍
 * @date 創建時間: 2017-2-10 下午2:35:39
 * @version 1.0
 */

public class CopyPicture {

	public static void main(String[] args) throws IOException {
		//找到目標文件
		File file = new File("F:\\1.jpg");
		//給出輸出目錄
		File file2 = new File("E:\\4.jpg");
		ReadPicture(file,file2);
	}
	public static void ReadPicture(File file,File file2) throws IOException{
		//建立讀入通道
		FileInputStream fileInputStream = new FileInputStream(file);
		//建立緩衝數組配合循環讀取文件數據
		byte[] buf=new byte[1024];
		int length = 0;
		while((length = fileInputStream.read(buf))!=-1){
			//邊度邊寫
			WriterPicture(buf,file2);
		}
		fileInputStream.close();
	}
	public static void WriterPicture(byte[] buf,File file2) throws IOException{
		//建立寫的通道
		FileOutputStream fileOutputStream = new FileOutputStream(file2,true);
		//寫入數據
		fileOutputStream.write(buf);
		//關閉資源
		fileOutputStream.close();
	}
}