字符流拷贝文件

public class  {
  public static void main(String[] args) {
	        File f_s = new File("d:\2.txt"); 
	        File f_d = new File("e:/yxm"); // 要拷贝到的路径
	        if (!f_d.exists()) { // 判断要拷贝到的路径是否存在，不存在就创建
	            f_d.mkdirs();
	        }
	        File f_dd = new File(f_d, "7s.txt");
	        FileReader fis = null;
	        FileWriter fos = null;
	        try {
	            fis = new FileReader(f_s);
	            fos = new FileWriter(f_dd);
	            char[] charTemp = new char[1];
	            while (fis.read(charTemp) != -1) {
	                int size = charTemp.length;
	                fos.write(charTemp, 0, size);
	            }
	        } catch (FileNotFoundException e) {
	            e.printStackTrace();
	        } catch (IOException e) {
	            e.printStackTrace();
	        } finally {
	            try {
	                if (fis != null) {
	                    fos.close();
	 
	                }
	                if (fos != null) {
	                    fis.close();
	 
	                }
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	        }
	 
	    }
	}