sun.net.ftp.FtpClient(java访问/操作ftp)

	public  void testFtp(){
		FtpClient ftp=null;
		try {
			ftp = new FtpClient();
			ftp.openServer("192.168.4.63");//打开会话
			ftp.login("root", "xwtech");//登录
			//ftp.cd("/test");//改变ftp当前目录
			
			//当前目录路径+/test/test2.txt,获得指定ftp上的文件
			TelnetInputStream tel=ftp.get("/test/test2.txt");
			//由inputStream流变成inputStreamReader流
			InputStreamReader inputStreamReader=new InputStreamReader(tel);
			//由reader流变成BufferedReader流
			BufferedReader bufferedReader=new BufferedReader(inputStreamReader);
			
			String content=null;
			//读取一行,如果为空,则流已到最后
			while((content=bufferedReader.readLine())!=null){
				System.out.println(content);
			}
			bufferedReader.close();
			inputStreamReader.close();
			tel.close();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
			if(ftp!=null){
				try {
					ftp.closeServer();
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}
	}