文件上传下载java.doc

文件下载：package com.ecc.liana.perbank.action;import java.io.File;import java.io.IOException;import .ftp.FTPClient;import com.ecc.emp.core.Context;import com.ecc.emp.core.EMPException;import com.ecc.liana.base.LianaAction;import com.ecc.liana.base.LianaConstants;import com.ecc.liana.base.LianaStandard;import com.ecc.liana.file.LianaFile;import .ftp.FtpService;public class FtpDownloadAction extends LianaAction /* * 保存FTP服务器上文件位置的字段名称 */private String ftpFileField;/* * 文件传输方式：true:二进制/false:ASCII */private boolean binaryFile;/* * Method execute. * * param context * Context * return String * throws Exception * see com.ecc.emp.flow.Action#execute(Context) */public String execute( Context context ) throws Exception/ 首先检查本地服务器是否已经存在要下载的文件String filePath = LianaStandard.getSelfDefineSettingsValue( LianaConstants.SETTINGS_DOWNLOAD_ROOT );String ftpFilePathName = (String) context.getDataValue( ftpFileField );String localFilePathName = filePath + ftpFilePathName;if ( !new File( localFilePathName ).isFile() )/ 如果本地服务器不存在文件，从FTP上下载FtpService ftpService = (FtpService) context.getService( LianaConstants.FTP_SERVICE_NAME );FTPClient ftpClient = null;try/ 建立本地目录结构LianaFile.makeMultiDirectory( filePath, ftpFilePathName );/ 初始化连接ftpClient = ftpService.initConnection();/ 设置传输方式ftpService.setTransferMode( ftpClient, binaryFile );/ 下载文件ftpService.downloadFile( ftpClient, ftpFilePathName, localFilePathName );finallytryif ( ftpClient != null )ftpClient.logout();catch ( IOException ex )/ ex.printStackTrace();/ 保存文件位置context.setDataValue( LianaConstants.FIELD_DOWNLOAD_FILE, localFilePathName );return DEFAULT_RETURN_VALUE;/* * Method setFtpFileField. * * param ftpFileField * String */public void setFtpFileField( String ftpFileField )this.ftpFileField = ftpFileField;/* * Method setBinaryFile. * * param binaryFile * boolean */public void setBinaryFile( boolean binaryFile )this.binaryFile = binaryFile;*文件上传：package com.ecc.liana.perbank.action;import java.io.File;import java.io.IOException;import .ftp.FTPClient;import com.ecc.emp.core.Context;import com.ecc.emp.core.EMPException;import com.ecc.emp.web.multipart.implement.EMPMultipartFile;import com.ecc.liana.base.LianaAction;import com.ecc.liana.base.LianaConstants;import com.ecc.liana.base.LianaStandard;import .ftp.FtpService;import com.ecc.liana.perbank.base.PBConstants;public class FtpUploadAction extends LianaAction /* * 目录分隔符 */private static final char DIR_SEPERATOR = /;/* * 上传文件的字段名称 */private String fileUploadField;/* * 保存FTP服务器上文件位置的字段名称 */private String ftpFileField;/* * 文件传输方式：true:二进制/false:ASCII */private boolean binaryFile;/* * Method execute. * * param context * Context * return String * throws EMPException * see com.ecc.emp.flow.Action#execute(Context) */public String execute( Context context ) throws EMPExceptionString clusterMode = LianaStandard.getSystemParam( PB_CLUSTER_MODE );/ 获取上传文件路径和名称EMPMultipartFile uploadFile = (EMPMultipartFile) context.getDataValue( fileUploadField );String filePathName = uploadFile.getTempFileName();String fileName = (new File( filePathName ).getName();String date = LianaStandard.getServerTime( yyyyMMdd );String time = LianaStandard.getServerTime( HHmmss );String customerId = (String) getSessionCtx( context ).getDataValue( PBConstants.FIELD_CUSTOMER_ID );if ( 0.equals( clusterMode ) )/ 单机模式，在本地服务器建立目录结构并移动文件String filePath = LianaStandard.getSelfDefineSettingsValue( LianaConstants.SETTINGS_DOWNLOAD_ROOT );String workingDirectory = date + DIR_SEPERATOR + time + DIR_SEPERATOR + customerId;filePath = filePath + DIR_SEPERATOR + workingDirectory;if ( !(new File( filePath ).isDirectory() )new File( filePath ).mkdirs();File downloadFile = new File( filePathName );downloadFile.renameTo( new File( filePath + DIR_SEPERATOR + fileName ) );context.setDataValue( ftpFileField, workingDirectory + DIR_SEPERATOR + fileName );else/ 集群模式，上传到FTP服务器FtpService ftpService = (FtpService) context.getService( LianaConstants.FTP_SERVICE_NAME );FTPClient ftpClient = null;try/ 初始化连接ftpClient = ftpService.initConnection();/ 设置传输方式ftpService.setTransferMode( ftpClient, binaryFile );/ 建立目录结构String workingDirectory = date + DIR_SEPERATOR + time + DIR_SEPERATOR + customerId;ftpService.makeMultiDirectory( ftpClient, workingDirectory );/ 进入最终存放目录ftpService.changeWorkingDirectory( ftpClient, workingDirectory );/ 上传文件ftpService.uploadFile( ftpClient, filePathName, fileName );/ 保存FTP服务器上文件的位置String ftpFilePath = workingDirectory + DIR_SEPERATOR + fileName;context.setDataValue( ftpFileField, ftpFilePath );finallytryif ( ftpClient != null )ftpClient.logout();catch ( IOException ex )/ ex.printStackTrace();return DEFAULT_RETURN_VALUE;/* * Method setFileUploadField. * * param fileUploadField * String */public void setFileUploadField( String fileUploadField )this.fileUploadField = fileUploadField;/* * Method setFtpFileFi