Java FTPClient.enterLocalPassiveMode方法代码示例

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
private FTPClient initFtpClient(String remoteDir) throws IOException {
    FTPClient ftp = new FTPClient();
    // 设置连接超时时间
    ftp.setConnectTimeout(CONNECT_TIMEOUT);
    // 设置传输文件名编码方式
    ftp.setControlEncoding(CONTROL_ENCODING);
    ftp.connect(host, ftpPort);
    int reply = ftp.getReplyCode();
    if (!FTPReply.isPositiveCompletion(reply)) {
        logger.debug("无法连接FTP");
        return null;
    }
    boolean loginRet = ftp.login(ftpUsername, ftpPassword);
    if (!loginRet) {
        logger.debug("FTP登录失败");
        return null;
    }
    // 进入被动模式
    ftp.enterLocalPassiveMode();
    boolean changeDirResult = MKDAndCWD(ftp, remoteDir);
    if (!changeDirResult) {
        logger.debug("创建/切换文件夹失败");
        return null;
    }
    // 传输二进制文件
    ftp.setFileType(FTP.BINARY_FILE_TYPE);
    return ftp;
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
/**
 * 连接FTP服务器
 * 
 * @author wangwei
 */
public FTPClient connectFTPServer() throws Exception {

	ftpClient = new FTPClient();
	try {
		ftpClient.configure(getFTPClientConfig());
		ftpClient.connect(ftpConstant.getHost(), ftpConstant.getPort());
		ftpClient.login(ftpConstant.getUsername(), ftpConstant.getPassword());

		// 设置以二进制方式传输
		ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
		// 设置被动模式
		ftpClient.enterLocalPassiveMode();
		ftpClient.setControlEncoding("GBK");

		// 响应信息
		int replyCode = ftpClient.getReplyCode();
		if ((!FTPReply.isPositiveCompletion(replyCode))) {
			// 关闭Ftp连接
			closeFTPClient();
			// 释放空间
			ftpClient = null;
			throw new Exception("登录FTP服务器失败,请检查!");
		} else {
			return ftpClient;
		}
	} catch (Exception e) {
		ftpClient.disconnect();
		ftpClient = null;
		throw e;
	}
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
/**
 * @desc 根据文件名下载文件
 *
 * @author liuliang
 *
 * @param filename
 *            文件名
 * @return boolean下载结果
 */
public byte[] downloadFile(String filename) {
	FTPClient ftpClient = ftpConnManager.getFTPClient();
	if (null == ftpClient || !ftpClient.isConnected()) {
		log.error("根据文件名下载文件失败,获取ftpClient失败,filename:{}", filename);
		return null;
	}
	try {
		ftpClient.enterLocalPassiveMode();
		InputStream ins = ftpClient.retrieveFileStream(new String(filename.getBytes("UTF-8"), "iso-8859-1"));
		if (null == ins) {
			return null;
		}
		ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
		byte[] buff = new byte[100];
		int rc = 0;
		int value =100;
		while ((rc = ins.read(buff, 0, value)) > 0) {
			swapStream.write(buff, 0, rc);
		}
		byte[] fileByte = swapStream.toByteArray();
		// ftpClient.getReply();
		return fileByte;
	} catch (IOException e) {
		log.error("根据文件名下载文件异常,filename:{}", filename, e);
	} finally {
		disconnect(ftpClient);
	}
	return null;
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
protected FTPClient getFTPClient() {
	FTPClient ftpClient = new FTPClient();
	try {
		ftpClient.setConnectTimeout(connectTimeout);
		ftpClient.connect(hostname);
		ftpClient.login(userName, passWord);
		int replyCode = ftpClient.getReplyCode();
		if (!FTPReply.isPositiveCompletion(replyCode)) {
			FtpUtils.disconnect(ftpClient);
			log.warn("FTP登陆失败,账号或者密码有误");
		} else {
			ftpClient.setSoTimeout(soTimeout);
			/* 设置缓冲区大小 */
			ftpClient.setBufferSize(bufferSize);
			/* 设置服务器编码 */
			ftpClient.setControlEncoding(encoding);
			/* 设置以二进制方式传输 */
			ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
			/* 设置服务器目录 */
			// ftpClient.changeWorkingDirectory(directory);
			ftpClient.enterLocalPassiveMode();
			log.debug("成功连接并登录FTP服务器。。。");
		}
	} catch (Exception e) {
		FtpUtils.disconnect(ftpClient);
		log.error("error", e);
	}
	return ftpClient;
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
protected FTPClient getFTPClient(final String ftpServer, final String username, final String password)
        throws Exception {
    final FTPClient ftpClient = new FTPClient();
    ftpClient.connect(ftpServer);
    ftpClient.login(username, password);
    ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
    ftpClient.enterLocalPassiveMode();
    return ftpClient;
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
/**
 * Description: 向FTP服务器上传文件
 * @param url FTP服务器hostname
 * @param port FTP服务器端口
 * @param username FTP登录账号
 * @param password FTP登录密码
 * @param path FTP服务器保存目录
 * @param filename 上传到FTP服务器上的文件名
 * @param input 输入流
 * @return 成功返回true，否则返回false
 */
public static boolean uploadFile(String url,int port,String username, String password, String path, String filename, InputStream input) {
	boolean success = false;
	FTPClient ftp = new FTPClient();
	try {
		int reply;
		ftp.connect(url, port);//连接FTP服务器
		//如果采用默认端口，可以使用ftp.connect(url)的方式直接连接FTP服务器
		ftp.login(username, password);//登录
		reply = ftp.getReplyCode();
		if (!FTPReply.isPositiveCompletion(reply)) {
			ftp.disconnect();
			return success;
		}
		//设置FTP以2进制传输
		ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
		//TODO 读取文件配置判断是否使用主动
		ftp.enterLocalPassiveMode();//被动
		//ftp.enterLocalActiveMode();//主动
		//创建目录
		mkDir(path,ftp);
		//改变目录
		ftp.changeWorkingDirectory(path);
		ftp.storeFile(filename, input);			
		input.close();
		ftp.logout();
		success = true;
	} catch (IOException e) {
		e.printStackTrace();
	} finally {
		if (ftp.isConnected()) {
			try {
				ftp.disconnect();
			} catch (IOException ioe) {
			}
		}
	}
	return success;
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
@ProtoMethod(description = "Connect to a ftp server", example = "")
@ProtoMethodParam(params = {"host", "port", "username", "password", "function(connected)"})
public void connect(final String host, final int port, final String username, final String password, final FtpConnectedCb callback) {
    mFTPClient = new FTPClient();

    Thread t = new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                mFTPClient.connect(host, port);

                MLog.d(TAG, "1");

                if (FTPReply.isPositiveCompletion(mFTPClient.getReplyCode())) {
                    boolean logged = mFTPClient.login(username, password);
                    mFTPClient.setFileType(FTP.BINARY_FILE_TYPE);
                    mFTPClient.enterLocalPassiveMode();
                    isConnected = logged;

                    callback.event(logged);
                }
                MLog.d(TAG, "" + isConnected);

            } catch (Exception e) {
                MLog.d(TAG, "connection failed error:" + e);
            }
        }
    });
    t.start();
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
public FTPClient getNewFTPClient(Uri path, int mode) throws SocketException, IOException, AuthenticationException{

        // Use default port if not set
        int port = path.getPort();
        if (port<0) {
            port = 21; // default port
        }

        String username="anonymous"; // default user
        String password = ""; // default password

        NetworkCredentialsDatabase database = NetworkCredentialsDatabase.getInstance();
        Credential cred = database.getCredential(path.toString());
        if(cred!=null){
            password= cred.getPassword();
            username = cred.getUsername();
        }
        FTPClient ftp= new FTPClient();

        //try to connect
        ftp.connect(path.getHost(), port);
        //login to 	server
        if(!ftp.login(username, password))
        {
            ftp.logout();
            throw new AuthenticationException();
        }
        if(mode>=0){
            ftp.setFileType(mode);

        }
        int reply = ftp.getReplyCode();
        //FTPReply stores a set of constants for FTP reply codes. 
        if (!FTPReply.isPositiveCompletion(reply))
        {
            try {
                ftp.disconnect();
            } catch (IOException e) {
                throw e;
            }
            return null;
        }
        //enter passive mode
        ftp.enterLocalPassiveMode();

        return ftp;
    }
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
/**
 * 上传文件到FTP服务器，支持断点续传
 *
 * @param localFile      本地文件
 * @param remoteFilePath 远程文件路径，使用/home/directory1/subdirectory/file.ext
 *                       按照Linux上的路径指定方式，支持多级目录嵌套，支持递归创建不存在的目录结构
 * @return 上传结果
 * @throws IOException
 */
public UploadStatus upload(FTPClient ftpClient, File localFile, String remoteFilePath) throws IOException {
    // 设置PassiveMode传输
    ftpClient.enterLocalPassiveMode();
    // 设置以二进制流的方式传输
    ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
    ftpClient.setControlEncoding(DEAFULT_REMOTE_CHARSET);
    UploadStatus result;
    // 对远程目录的处理
    String remoteFileName = remoteFilePath;
    if (remoteFilePath.contains("/")) {
        remoteFileName = remoteFilePath.substring(remoteFilePath.lastIndexOf("/") + 1);
        // 创建服务器远程目录结构，创建失败直接返回
        if (createDirecroty(remoteFilePath, ftpClient) == UploadStatus.Create_Directory_Fail) {
            return UploadStatus.Create_Directory_Fail;
        }
    }
    // 检查远程是否存在文件
    FTPFile[] files = ftpClient.listFiles(new String(remoteFileName
            .getBytes(DEAFULT_REMOTE_CHARSET), DEAFULT_LOCAL_CHARSET));
    if (files.length == 1) {
        long remoteSize = files[0].getSize();
        //	File f = new File(localFilePath)
        long localSize = localFile.length();
        if (remoteSize == localSize) { // 文件存在
            return UploadStatus.File_Exits;
        } else if (remoteSize > localSize) {
            return UploadStatus.Remote_Bigger_Local;
        }
        // 尝试移动文件内读取指针,实现断点续传
        result = uploadFile(remoteFileName, localFile, ftpClient, remoteSize);
        // 如果断点续传没有成功，则删除服务器上文件，重新上传
        if (result == UploadStatus.Upload_From_Break_Failed) {
            if (!ftpClient.deleteFile(remoteFileName)) {
                return UploadStatus.Delete_Remote_Faild;
            }
            result = uploadFile(remoteFileName, localFile, ftpClient, 0);
        }
    } else {
        result = uploadFile(remoteFileName, localFile, ftpClient, 0);
    }
    return result;
}
 

import org.apache.commons.net.ftp.FTPClient; //导入方法依赖的package包/类
@Override
public String getMessage() throws IOException {
	String message = null;
	try 
	{
		FTPClient ftpClient = new FTPClient();
		ftpClient.connect(server, port);
		ftpClient.login(user, password);
		ftpClient.enterLocalPassiveMode();
		ftpClient.setFileType(2);

		String remoteFile1 = "/"+file;
		InputStream inputStream = ftpClient.retrieveFileStream(remoteFile1);
		message = StreamUtility.readStream(inputStream, "iso-8859-1");
	    Boolean success = ftpClient.completePendingCommand();
	    
		if (success) {
			System.out.println("File has been downloaded successfully.");
		}
		
		inputStream.close();
	}
	catch (IOException e)
	{
		/* SendMail mail = new SendMail();
	      try
	      {
	        mail.postMail(this.properties.getProperty("mail"), "TMC-Fehler", 
	          e.getStackTrace().toString(), "[email protected]", this.properties
	          .getProperty("smtpHost"), this.properties
	          .getProperty("smtpUser"), this.properties
	          .getProperty("smtpPort"));
	      }
	      catch (MessagingException e1)
	      {
	        e1.printStackTrace();
	      }
	      this.logger.debug("Error with FTP connection " + 
	        e.getLocalizedMessage(), e);
	      throw new DownloadException(
	        "Error while downloading file from FTP " + 
	        e.getLocalizedMessage(), e);
		 */
	}

	return message;
}