用edtftpj实现Java FTP客户端工具

用edtftpj实现Java FTP客户端工具

 

edtftpj是一个java FTP工具包，使用非常方便，感觉比Apache的好用，但Apache更灵活。edtftpj有多种版本，分别是java、.net和js版本。对于Java版的有一个免费版本。我用的就是免费版本。其余的均为商业版本。

 

为了开发，先下载免费版本的开发包。

主  页：[url]http://www.enterprisedt.com/[/url]

工具包：[url]http://www.enterprisedt.com/products/edtftpj/download/edtftpj.zip[/url]

目前我用的是2.03。

 

在开发FTP客户端工具之前，先看看其E文的开发指南：

 

一、开发指南

 

1、在开发中，最核心的API在两个类中，分别是：

 

FileTransferClient  通过构建此对象来是进行FTP文件传输. 支持 "plain" FTP, i.e. RFC 959 FTP 

FTPClient  功能和FileTransferClient一样，已经被废弃. 支持 "plain" FTP, i.e. RFC 959 FTP 

 

2、连接一个FTP服务器

 

1)、构建FileTransferClient对象

 FileTransferClient ftp = new FileTransferClient();

 

2)、设置远程主机和用户认证

 ftp.setRemoteHost(host);

 ftp.setUserName(username);

 ftp.setPassword(password);

 

 ftp.setRemotePort(21);

 ftp.setTimeout(1200);

 

3)、登录到服务器

 ftp.connect();

 

4)、关闭连接

 ftp.disconnect();

 

 

3、设置更多的连接属性

 

1)、设置自动登录

 ftp.getAdvancedFTPSettings().setAutoLogin(false);

 

2)、设置传输缓冲区

 ftp.getAdvancedSettings().setTransferBufferSize(1024)

 

3)、设置获取服务器端信息时所使用的编码

 ftp.getAdvancedSettings().setControlEncoding("GBK");

 

4)、设置传输通知的时间间隔

 ftp.getAdvancedSettings().setTransferNotifyInterval(5000);

5)、其他的一些设置

 ftp.getAdvancedFTPSettings().setConnectMode(FTPConnectMode.ACTIVE);

 ftp.getAdvancedFTPSettings().setActivePortRange(61500, 61510);

 ftp.getAdvancedFTPSettings().setConnectMode(FTPConnectMode.PASV);

 

4、改变当前的工作目录

1)、获取当前的ftp工作目录

 string directory = ftp.getRemoteDirectory();

2)、改变当前的工作目录

 ftp.changeDirectory(directory);

3)、改变当前的工作目录为其父目录

 ftp.changeToParentDirectory();

 

5、上传与下载、暂停

1)、上传

 ftp.uploadFile(java.lang.String localFileName, java.lang.String remoteFileName)

2)、下载

 ftp.downloadFile(java.lang.String localFileName, java.lang.String remoteFileName)

3)、暂停所有的传输

 ftp.cancelAllTransfers()

 

当然，以上很多方法都有多中重载格式。下面给出一个简单封装的JavaFTP客户端工具：

 

二、封装的客户端工具

 

import com.enterprisedt.net.ftp.FTPException;
import com.enterprisedt.net.ftp.FTPFile;
import com.enterprisedt.net.ftp.FileTransferClient;
import com.enterprisedt.net.ftp.WriteMode;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.File;
import java.io.IOException;
import java.text.ParseException;

/**
* edtftpj-2.0.3 工具简单封装测试
*
* @author leizhimin 2008-9-19 13:33:03
*/
public class FtpUtil {
        private static Log log = LogFactory.getLog(FtpUtil.class);
        private FileTransferClient client = null;

        public static void main(String[] args) throws FTPException, IOException {
                FtpUtil ftp = new FtpUtil();
//                ftp.connectServer();
                File file = new File("C://ooo//upx");
                UploadListener listener = new UploadListener(ftp.client);
                ftp.ftpUploadFolder(file, listener);


                ftp.ftpDownload("c://new1111.gif", "/upx/down.gif");


                ftp.disconnect();
        }

        public FtpUtil() {
                this.connectServer();
        }

        public FileTransferClient getClient() {
                return client;
        }

        /**
         * 连接ftp服务器
         *
         * @return 连接成功标识
         */
        public boolean connectServer() {
                boolean flag = false;
                client = new FileTransferClient();
                try {
                        client.setUserName("admin");
                        client.setPassword("123");
                        client.setRemoteHost("localhost");
                        client.setRemotePort(21);
                        client.setTimeout(1200);

                        client.setEventListener(new UploadListener(client));
                        client.getAdvancedSettings().setTransferBufferSize(1000);
                        client.getAdvancedSettings().setTransferNotifyInterval(5000);
                        client.getAdvancedSettings().setControlEncoding("GBK");
                        client.connect();
                        flag = true;

                } catch (FTPException e) {
                        e.printStackTrace();
                } catch (IOException e) {
                        e.printStackTrace();
                }
                return flag;
        }

        /**
         * 关闭FTP客户端连接
         *
         * @return 关闭成功标识
         */
        public boolean disconnect() {
                boolean flag = false;
                try {
                        client.disconnect();
                        flag = true;
                } catch (FTPException e) {
                        e.printStackTrace();
                } catch (IOException e) {
                        e.printStackTrace();
                }
                return flag;
        }

        /**
         * 上传文件
         *
         * @param file 文件
         * @param ul     监听器
         */
        public void ftpUploadFile(File file, UploadListener ul) {
                String fileName = file.getName();
                String filePath = file.getPath();
                try {
                        client.uploadFile(filePath, fileName, WriteMode.RESUME);
                        int len = (int) client.getSize(fileName);
                        log.info("上传文件" + filePath + "完成，大小为" + len + "字节！");
                } catch (FTPException e) {
                        e.printStackTrace();
                } catch (IOException e) {
                        e.printStackTrace();
                }
        }

        /**
         * 上传文件（夹）
         *
         * @param file 上传文件
         * @param ul     上传监听器
         */
        public void ftpUploadFolder(File file, UploadListener ul) {
                if (file.isFile()) {
                        ftpUploadFile(file, ul);
                }
                try {
                        if (file.isDirectory()) {
                                FTPFile[] ftpFiles = client.directoryList();
                                boolean isExist = false;
                                //遍历FTP当前目录的文件文件名，如果存在则停止查找，如果不存在则设计标记为不存在
                                for (FTPFile ftpFile : ftpFiles) {
                                        if (ftpFile.getName().equals(file.getName())) {
                                                isExist = true;
                                                break;
                                        }
                                }
                                //如果要上传的目录不存在，则创建上传目录
                                if (!isExist) {
                                        client.createDirectory(file.getName());
                                }
                                //设置当前目录 
                                client.changeDirectory(file.getName());

                                //上传文件的列表
                                File[] upFiles = file.listFiles();
                                for (File upFile : upFiles) {
                                        if (upFile.isFile()) {
                                                ftpUploadFile(upFile, ul);
                                        } else if (upFile.isDirectory()) {
                                                ftpUploadFolder(upFile, ul);
                                        }
                                }
                                client.changeToParentDirectory();
                        }
                } catch (FTPException e) {
                        e.printStackTrace();
                } catch (IOException e) {
                        e.printStackTrace();
                } catch (ParseException e) {
                        e.printStackTrace();
                }
        }

        /**
         * 下载文件
         *
         * @param localFileName    本地文件名
         * @param remoteFileName 远程文件名
         * @throws FTPException
         * @throws IOException
         */
        public void ftpDownload(String localFileName, String remoteFileName) throws FTPException, IOException {
                client.downloadFile(localFileName, remoteFileName, WriteMode.OVERWRITE);
        }
}

 

import com.enterprisedt.net.ftp.EventAdapter;
import com.enterprisedt.net.ftp.FileTransferClient;

/**
* 上传过程监听类
*
* @author leizhimin 2008-9-22 16:05:53
*/
class UploadListener extends EventAdapter {
        private long bytesTransferred = 0;
        private FileTransferClient ftpClient;

        public UploadListener(FileTransferClient ftpClient) {
                this.ftpClient = ftpClient;
        }

        public void bytesTransferred(String connId, String remoteFilename, long bytes) {
                bytesTransferred = bytes;
        }
}

 

运行结果：

2008-9-22 17:45:48 zzvcom.cms.ccm.jmkws.common.FtpUtil ftpUploadFile
信息: 上传文件C:/ooo/upx/1/12/12.txt完成，大小为0字节！
2008-9-22 17:45:48 zzvcom.cms.ccm.jmkws.common.FtpUtil ftpUploadFile
信息: 上传文件C:/ooo/upx/1/11/11.txt完成，大小为0字节！
2008-9-22 17:45:48 zzvcom.cms.ccm.jmkws.common.FtpUtil ftpUploadFile
信息: 上传文件C:/ooo/upx/1/1.txt完成，大小为0字节！
2008-9-22 17:45:48 zzvcom.cms.ccm.jmkws.common.FtpUtil ftpUploadFile
信息: 上传文件C:/ooo/upx/1/新建 FDF Document.fdf完成，大小为0字节！
2008-9-22 17:45:48 zzvcom.cms.ccm.jmkws.common.FtpUtil ftpUploadFile
信息: 上传文件C:/ooo/upx/1/新建 WinRAR 压缩文件.rar完成，大小为20字节！
2008-9-22 17:45:48 zzvcom.cms.ccm.jmkws.common.FtpUtil ftpUploadFile
信息: 上传文件C:/ooo/upx/aa.fdf完成，大小为0字节！

Process finished with exit code 0