public static boolean CopyFile(String src1, String des1) throws IOException {//        判断传入地址是否有效        if(src1 == null || src1 == "" || des1 == null || des1 == ""){            System.out.println("您输入的是无效地址");            return false;        }//        创建流对象,并使用try(resource...)保证一定会关闭流对象        try(        InputStream In = new FileInputStream(new File(src1));                    OutputStream Out = new FileOutputStream(new File(des1))        ){//        创建缓冲区            byte [] bs = new byte[8];            int len = 0;            while ((len = In.read(bs))!= -1){//            每读一次就写一次                Out.write(bs);            }        }        return true;    }