一个ftp客户端

代码如下：

 

其中用到了apache commons-net包

 

public class FtpUtil {

	private static FTPClient ftpClient;
	private static FtpUtil instatnce;
	public static final int BINARY_FILE_TYPE = FTP.BINARY_FILE_TYPE;
	public static final int ASCII_FILE_TYPE = FTP.ASCII_FILE_TYPE;

	private FtpUtil() {

	}

	public static synchronized FtpUtil getInstatnce() {
		if (instatnce == null) {
			instatnce = new FtpUtil();
			ftpClient = new FTPClient();
		}
		return instatnce;
	}

	public synchronized boolean connectServer(FtpConfig ftpConfig) throws SocketException,IOException {
		boolean flag = false;
		String server = ftpConfig.getHost();
		int port = ftpConfig.getPort();
		String user = ftpConfig.getUser();
		String password = ftpConfig.getPwd();

		boolean logined = connectServer(server, port, user, password);
		if (logined) {
			flag = true;
		}
		return flag;
	}

	private boolean connectServer(String server, int port, String user,String password) throws SocketException, IOException {
		boolean flag = false;
		ftpClient.setControlEncoding("UTF-8");
		ftpClient.connect(server, port);
		//被动模式传输
		ftpClient.enterLocalPassiveMode();
		ftpClient.setFileType(BINARY_FILE_TYPE);
		boolean logined = ftpClient.login(user, password);
		if (logined) {
			flag = true;
		}
		return flag;
	}
	
	public void setFileType(int fileType) throws IOException {
		ftpClient.setFileType(fileType);
	}
	
	/**
	 * 关闭服务端
	 * @throws IOException
	 */
	public void closeServer() throws IOException {
		if (ftpClient.isConnected()) {
			ftpClient.disconnect();
		}
	}
	
	/**
	 * 退出ftp
	 * @throws IOException
	 */
	public synchronized void logOut() throws IOException {
		ftpClient.logout();
	}
	
	/**
	 * 改变服务端目录
	 * @param path
	 * @return
	 * @throws IOException
	 */
	public boolean changeDirectory(String path) throws IOException {
		return ftpClient.changeWorkingDirectory(path);
	}
	
	/**
	 * 建立目录
	 * @param pathName
	 * @return
	 * @throws IOException
	 */
	public boolean createDirectory(String pathName) throws IOException {
		return ftpClient.makeDirectory(pathName);
	}

	/**
	 * 删除服务端目录
	 * @param path
	 * @return boolean
	 * @throws IOException
	 */
	public boolean removeDirectory(String path) throws IOException {
		return ftpClient.removeDirectory(path);
	}
	
	/**
	 * 上传文件到服务端
	 * @param fileName 
	 * @param newName
	 * @return
	 * @throws IOException
	 */
	public boolean uploadFile(String fileName, String newName)	throws IOException {
		boolean flag = false;
		InputStream iStream = null;
		try {
			iStream = new FileInputStream(fileName);
			ftpClient.storeFile(newName, iStream);
			if (FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
				flag = true;
			}

		}catch(IOException e) {
			flag = false;
			return flag;
		}finally {
			if (iStream != null) {
				iStream.close();
			}
		}
		return flag;
	}	
	
	public static void main(String[] args) {
		FtpConfig ftpConfig = new FtpConfig() ;
		ftpConfig.setHost("192.168.0.135") ;  
		ftpConfig.setUser("admin") ;
		ftpConfig.setPwd("1111") ;
		ftpConfig.setPort(21) ;	
		FtpUtil util = FtpUtil.getInstatnce();	
		try {
			boolean flag = util.connectServer(ftpConfig) ;
			if(flag){
				System.out.println("--------------成功连接ftp");				
				util.uploadFile("d:/aaaa.xml", "/aaa-----3.xml");
				util.uploadFile("d:/aaab.xml", "/aaa4.xml");
				System.out.println("--------------上传文件完成");
				util.logOut();				
			}else{
				System.out.println("--->ftp连接失败，请检查客户端或服务端设置");
			}
		} catch (SocketException e) {			
			e.printStackTrace();
		} catch (IOException e) {			
			e.printStackTrace();
		}
		finally{
			try {
				util.closeServer();
			} catch (IOException e) {				
				e.printStackTrace();
			}
		}
	}
	
	


}

 

 

public class FtpConfig {
	
	private String host;
	private int port;
	private String user;
	private String pwd;
	
	public FtpConfig() {
		
	}

	public String getHost() {
		return host;
	}

	public void setHost(String host) {
		this.host = host;
	}

	public int getPort() {
		return port;
	}

	public void setPort(int port) {
		this.port = port;
	}

	public String getUser() {
		return user;
	}

	public void setUser(String user) {
		this.user = user;
	}

	public String getPwd() {
		return pwd;
	}

	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	
	
	
}