package?com.cee.ftp;

/**
?需要ftp4j.jar
?*author?ljj
?*/

import?it.sauronsoftware.ftp4j.FTPAbortedException;

import?it.sauronsoftware.ftp4j.FTPClient;
import?it.sauronsoftware.ftp4j.FTPDataTransferException;
import?it.sauronsoftware.ftp4j.FTPException;
import?it.sauronsoftware.ftp4j.FTPFile;
import?it.sauronsoftware.ftp4j.FTPIllegalReplyException;
import?it.sauronsoftware.ftp4j.FTPListParseException;

import?java.io.File;
import?java.io.IOException;

import?java.util.Date;
import?java.util.HashMap;
import?java.util.Iterator;
import?java.util.Map;

import?com.cee.util.CommonStringDateUtil;

public?class?FtpTool?{
	private?static?FTPClient?client?=?new?FTPClient（）;

	/**
	?*?連接且登錄到特定的FTP服務器文件夾
	?*?
	?*?@return
	?*?@throws?FTPException
	?*?@throws?FTPIllegalReplyException
	?*?@throws?IOException
	?*?@throws?IllegalStateException
	?*/

	public?boolean?connectToServer（）?throws?IllegalStateException?IOException
			FTPIllegalReplyException?FTPException?{
		String?server?=?“192.168.7.53“;
		String?user?=?“tfyj“;
		String?password?=?“tfyj“;
		String?path?=?“/typhoon“;?//?要讀取的服務器上的目錄
		client.connect（server）;
		client.login（user?password）;
		System.out.println（“登陸成功“）;

		client.changeDirectory（path）;

		if?（client.isCompressionSupported（））?{
			client.setCompressionEnabled（true）;
		}
		return?true;
	}

	public?boolean?doUpdate（）?throws?IllegalStateException?IOException
			FTPIllegalReplyException?FTPException?FTPDataTransferException
			FTPAbortedException?FTPListParseException?{
		Boolean?bl?=?null;
		//?取遠程文件信息
		Mapject>?remotefiles?=?getRemotefiles（）;
		//?取本地文件信息
		Mapject>?localfiles?=?getLocalfiles（）;

		//?按遠程文件信息對比本地文件信息
		Iterator?it?=?remotefiles.keySet（）.iterator（）;

		while?（it.hasNext（））?{
			String?key?=?（String）?it.next（）;
			Fileobject?localFile?=?localfiles.get（key）;
			Fileobject?remoteFile?=?remotefiles.get（key）;
			if?（localFile?==?null?&&?remoteFile?!=?null）?//?如果本地沒有文件，就下載
			{
				doDownload（remotefiles）;
				bl?=?true;
			}
			//?System.out.println（localfiles.get（key）.lasttime）;
			//?根據本地和遠程文件的最后修改時間判斷下不下載。
			Date?localFileTime?=?CommonStringDateUtil.parse（localFile.lasttime）;
			Date?remoteFileTime?=?CommonStringDateUtil
					.parse（remoteFile.lasttime）;
			if?（localFileTime.before（remoteFileTime））?//?本地文件較舊
			{
				doDownload（remotefiles）;
				bl?=?true;
			}?else?{
				bl?=?false;
			}

		}
		return?bl;
	}

	/**
	?*?取服務器文件
	?*?
	?*?@return
	?*?@throws?FTPListParseException
	?*?@throws?FTPAbortedException
	?*?@throws?FTPDataTransferException
	?*?@throws?FTPException
	?*?@throws?FTPIllegalReplyException
	?*?@throws?IOException
	?*?@throws?IllegalStateException
	?*/

	private?static?Mapject>?getRemotefiles（）
			throws?IllegalStateException?IOException
			FTPIllegalReplyException?FTPException?FTPDataTransferException
			FTPAbortedException?FTPListParseExcepti

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????436??2011-12-01?16:28??FtpTest\.classpath

?????文件????????294??2011-12-01?16:28??FtpTest\.mymetadata

?????文件???????1197??2011-12-01?16:28??FtpTest\.project

?????文件????????500??2011-12-01?16:28??FtpTest\.settings\.jsdtscope

?????文件????????330??2011-12-01?16:28??FtpTest\.settings\org.eclipse.jdt.core.prefs

?????文件?????????49??2011-12-01?16:28??FtpTest\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2011-12-01?16:28??FtpTest\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件?????????36??2011-12-01?16:28??FtpTest\WebRoot\meta-INF\MANIFEST.MF

?????文件????????705??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee\ftp\Fileobject.class

?????文件???????5837??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee\ftp\FtpTool.class

?????文件???????1677??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee\ftp\Test.class

?????文件???????2263??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee\util\CommonStringDateUtil.class

?????文件??????68561??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\lib\ftp4j-1.6.1.jar

?????文件????????371??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\web.xml

?????文件????????834??2011-12-01?16:28??FtpTest\WebRoot\index.jsp

?????文件????????965??2011-12-01?16:28??FtpTest\localdir\lat.dat

?????文件????????962??2011-12-01?16:28??FtpTest\localdir\lon.dat

?????文件????????966??2011-12-01?16:28??FtpTest\localdir\t2.dat

?????文件???????7922??2011-12-01?16:28??FtpTest\src\com\cee\ftp\FtpTool.java

?????文件???????1334??2011-12-01?16:28??FtpTest\src\com\cee\ftp\Test.java

?????文件???????2066??2011-12-01?16:28??FtpTest\src\com\cee\util\CommonStringDateUtil.java

?????目錄??????????0??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee\ftp

?????目錄??????????0??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee\util

?????目錄??????????0??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com\cee

?????目錄??????????0??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes\com

?????目錄??????????0??2011-12-01?16:28??FtpTest\src\com\cee\ftp

?????目錄??????????0??2011-12-01?16:28??FtpTest\src\com\cee\util

?????目錄??????????0??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\classes

?????目錄??????????0??2011-12-01?16:28??FtpTest\WebRoot\WEB-INF\lib

?????目錄??????????0??2011-12-01?16:28??FtpTest\src\com\cee

............此處省略12個文件信息