运用BufferedInputStream和BufferedOutputStream实现文件内容的复制，中间可以使用用一个byte数组作为缓冲。

淡淡的烟草味﹌ 2022-05-23 06:09 24阅读 0赞

package shiyan4;
    
    import java.io.BufferedInputStream;
    import java.io.BufferedOutputStream;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.IOException;
    
    
    public class BufferedInOutputStream {
    
    	public static void main(String[] args) {
    		// TODO Auto-generated method stub
    		 BufferedInputStream bis = null;  
    	     BufferedOutputStream bos = null;  
    	        try {  
    	        	//创建文件对象
    	            File file1 = new File("F:\\src1.txt");  
    	            File file2 = new File("F:\\\\dest2.txt");  
    	             //创建流对象
    	            FileInputStream fis = new FileInputStream(file1);  
    	            FileOutputStream fos = new FileOutputStream(file2);  
    	            //缓存区  
    	            bis = new BufferedInputStream(fis);  
    	            bos = new BufferedOutputStream(fos);  	              
    	            byte[] b = new byte[1024];  
    	            int len=0;  
    	            while((len = bis.read(b)) != -1){  
    	                bos.write(b, 0, len);  
    	            }  
    
    	        } catch (FileNotFoundException e) {  
    	            e.printStackTrace();  
    	        } catch (IOException e) {  
    	            e.printStackTrace();  
    	        }finally{  
    	        	//关闭流
    	            if(bis != null){  
    	                try {  
    	                    bis.close();  
    	                } catch (IOException e) {  
    	                    e.printStackTrace();  
    	                }  
    	            }  
    	            if(bos != null){  
    	                try {  
    	                    bos.close();  
    	                } catch (IOException e) {  
    	                    e.printStackTrace();  
    	                }  
    	            }  
    	        }  
    	}
    
    }