下载网络文件 与 java得到本地目录文件对象

下载网络文件//http://images.17173.com/2014/news/2014/08/02/cj0802hjx10s.jpg

String path = "http://images.17173.com/2014/news/2014/08/02/cj0802hjx01s.jpg";

       try {

           URL url = new URL(path);//网络上图片(不知视频音乐可不可以?)

           // 打开连接

           URLConnection con = url.openConnection();

           // 输入流

           InputStream is = con.getInputStream();

           // 1K的数据缓冲

           byte[] bs = newbyte[1024];

           // 读取到的数据长度

           int len;

           // 输出的文件流

           OutputStream os = new FileOutputStream("e:abc.jpg");// FileOutputStream fos = new FileOutputStream("*.后缀");       

// 开始读取

 

           // 下载inputStream 方式一 :

//         os.write(FileUtil.readAsByteArray(is));

          

 

           // 下载inputStream 方式二 :

           while ((len = is.read(bs)) != -1) {

              //将网络文件下载到本地

              os.write(bs, 0, len);

           }

           os.close();

           is.close();

          

           //用pic记事本记录下载了什么

           File file = new File("e:pic.txt");

           FileWriter fw;

           try {

              fw = new FileWriter(file,true);

              fw.write(path);

              fw.flush();

              fw.close();

           } catch (IOException e1) {

              // TODO Auto-generatedcatch block

              e1.printStackTrace();

           }

       } catch (Exception e) {

           e.printStackTrace();

       }

 

 

得到目录下所有文件与目录

publicstaticvoid getFiles(String path){

       File file = new File(path);

       File[] files = file.listFiles();

       for (int i = 0; i < files.length; i++) {

           File file1 = files[i];

           if(file1.isDirectory()){

              System.out.println("目录=============="+file1.getName());

              getFiles(file1.getPath());

           }else{

              System.out.println("==============================");

              System.out.println("文件名"+file1.getName()+"\tfile1.length()"+file1.length());//length 字节

              j++;

           }

       }

    }