Java FTP上传下载单个文件示例代码

		

	 

	首先导入两个jar包:commons-io-1.3.2.jar、commons-net-3.0.1.jar。

	 

	示例代码如下:

	 

	package com;

	 

	 

	import org.apache.commons.io.IOUtils;

	import org.apache.commons.net.ftp.FTPClient;

	import java.io.File;

	import java.io.FileInputStream;

	import java.io.IOException;

	import java.io.FileOutputStream;

	public class FtpTest1 {

	 

	 

	public static void main(String[] args) {

	 

	//以下是我的FTP服务器的信息

	 

	String ip="184.171.16.221";

	int port=21;

	String userName="foqrume2";

	String passWord="qazwasx11`12";

	String sourceFileUrl="D:\\数据2011-08-1---2011-08-31.xls";

	String ftpGoalDir="/bbs/communitypic";

	String downDir="c:\\";

	String renameFileName="tang.xls";

	String downFileName="downtfq.rar";

	        testUpload(ip,port,userName,passWord,sourceFileUrl,ftpGoalDir,renameFileName);

	       

	        //testDownload(ip,port,userName,passWord,ftpGoalDir,downDir,downFileName);

	    }

	 

	 

	    /**

	     * FTP上传单个文件测试

	     */

	/**

	*

	*/

	 

	/***

	* 经测试可以上传文件类型:rar,xls,doc,txt,gif

	* @ftpGoalDir:ftp服务器的目录  

	* @sourceFileUrl 上传文件的路径

	*

	*/

	    public static boolean testUpload(String ip,int port,String userName,String passWord,String sourceFileUrl,String ftpGoalDir,String renameFileName) {

	        //上传不成功

	     boolean res=false;

	     //创建一个连接FTP服务器对象

	     FTPClient ftpClient = new FTPClient();

	        //创建一个文件写入流对象

	        FileInputStream fis = null;

	 

	 

	        try {

	         //连接FTP服务器

	            ftpClient.connect(ip);

	            //登录FTP连接

	            ftpClient.login(userName, passWord);

	            //创建文件对象

	            File srcFile = new File(sourceFileUrl);

	            //向FTP服务器写入文件

	            fis = new FileInputStream(srcFile);

	            //设置上传目录

	            ftpClient.changeWorkingDirectory(ftpGoalDir);

	            //向目标服务器写入文件大小限制

	            ftpClient.setBufferSize(1024);

	            //

	            ftpClient.setControlEncoding("GBK");

	            //设置文件类型（二进制）

	            ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);

	            ftpClient.storeFile(renameFileName, fis);

	            res=true;

	            System.out.println("upload successful!");

	        } catch (IOException e) {

	            e.printStackTrace();

	            throw new RuntimeException("FTP客户端出错！", e);

	        } finally {

	            IOUtils.closeQuietly(fis);

	            try {

	                ftpClient.disconnect();

	            } catch (IOException e) {

	                e.printStackTrace();

	                throw new RuntimeException("关闭FTP连接发生异常！", e);

	            }

	        }

	       

	        return res;

	    }

	 

	 

	    /**

	     * FTP下载单个文件测试

	     */

	    public static void testDownload(String ip,int port,String userName,String passWord,String ftpGoalDir,String sourceFileUrl,String renameFileName) {

	        FTPClient ftpClient = new FTPClient();

	        FileOutputStream fos = null;

	 

	 

	        try {

	            ftpClient.connect(ip);

	            ftpClient.login(userName, passWord);

	 

	 

	            String remoteFileName = ftpGoalDir;

	            fos = new FileOutputStream(sourceFileUrl+"/"+renameFileName);

	 

	 

	            ftpClient.setBufferSize(1024);

	            //设置文件类型（二进制）

	            ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);

	            ftpClient.retrieveFile(remoteFileName, fos);

	            System.out.println("successful!");

	        } catch (IOException e) {

	            e.printStackTrace();

	            throw new RuntimeException("FTP客户端出错！", e);

	        } finally {

	            IOUtils.closeQuie

补充：软件开发 , Java ,

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