1.使用共享网络磁盘的形式，在当前的服务器简历一个另一台服务器的网络磁盘，直接操作读写这个网络磁盘即可
2.使用FTP操作另外这台服务器
帖子1：java上传图片到另一台服务器上，如何解决？
http://bbs.csdn.net/topics/370033090?page=1#post-394318586
使用org.apache.commons.net.ftp包开发FTP客户端，实现进度汇报，实现断点续传，中文支持
利用org.apache.commons.net.ftp包实现一个简单的ftp客户端实用类。主要实现一下功能
1.支持上传下载。支持断点续传
2.支持进度汇报
3.支持对于中文目录及中文文件创建的支持。
http://zhangnet1.iteye.com/blog/907109
两个工具：
1. 有人介绍用jcifs-1.1.11.jar，这个可以在远程服务器上创建文件夹
2. apache的ftp工具
3. java.net支持
通过jcifs实现java访问网络共享文件
在Microsoft 网 络 系 统 中，SMB（Server Message Block，服务信息块）协议是WindowsforWorkgroup(WfWg)、Windows95、WindowsNT和LanManager用来实现共享局域网上文件和打印机的协议。对于利用Linux和WindowsNT构建的局域网来说，Samba就是为Linux提供的SMB客户程序/服务器程序的软件包，其功能是实现Windows 和Linux互相共享对方的磁盘空间和打印机。通用网络文件系统简称CIFS,它事实上是windows平台文件共享的标准协议，它是windows explorer,网络邻居和映射网络驱动器的底层实现协议。JAVA具有天然的平台无关性，使用JAVA可以访问任何类型的服务器或客户机上的共享文件系统，并且编写的软件产品可以运行于任何平台，因此用JAVA访问共享文件系统在企业应用中具有得天独厚的优势。
jcifs是CIFS在JAVA中的一个实现，是samba组织负责维护开发的一个开源项目,专注于使用java语言对cifs协议的设计和实现。他们将jcifs设计成为一个完整的，丰富的，具有可扩展能力且线程安全的客户端库。这一库可以应用于各种java虚拟机访问遵循CIFS/SMB网络传输协议的网络资源。类似于java.io.File的接口形式，在多线程的工作方式下被证明是有效而容易使用的。
jcifs的开发方法类似java的文件操作功能，它的资源url定位：smb://{user}:{password}@{host}/{path}，smb为协议名，user和password分别为共享文件机子的登陆名和密码，@后面是要访问的资源的主机名或IP地址。最后是资源的共享文件夹名称和共享资源名。例如 smb://administrator:[email protected]/test/response.txt。
在JAVA程序中，使用如下方式获得一个远程共享文件的句柄：SmbFile file = new SmbFile("smb://guest:[email protected]/share/a.txt");这里的句柄不仅限于远程的共享文件，还可能是共享文件夹。isFile()方法和isDirectory()用来判断这个句柄对应的资源的真实属性。如果是共享文件夹，通过调用它的list()方法将获得其中资源的列表。List方法支持过滤器机制，有两种过滤器可供使用，一种是SmbFileFilter,另一种是SmbFilenameFilter，这两个在jcifs中作为接口出现，你可以根据自己的需要派生出个性化的过滤器，实现接口中的accept方法，以满足不同业务的需求。
SmbFileInputStream是smb文件的输入流，它的功能是以流的方式打开一个SmbFile：SmbFileInputStream in = new SmbFileInputStream(file);SmbFileInputStream提供read方法，你可以从这个流中读出远程文件全部的内容。
SmbFileInputStream，SmbFileOutputStream，SmbFile这里对应着io里的FileInputStream
FileOutputStream,File，如果对io比较熟悉那么jcifs比较容易应用
下面一个最简单的例子说明jcifs的用法
import jcifs.smb.SmbFileInputStream;
import jcifs.smb.SmbFile;
public class ReadShareFile {
public static void main(String[] args) {
try{
SmbFile smbFile=new SmbFile("smb://test:[email protected]/share2/aa.txt");
//通过 smbFile.isDirectory();isFile()可以判断smbFile是文件还是文件夹
int length=smbFile.getContentLength();//得到文件的大小
byte buffer[] = new byte[length] ;
SmbFileInputStream in = new SmbFileInputStream(smbFile) ; //建立smb文件输入流
while((in.read(buffer)) != -1){
System.out.write(buffer);
System.out.println(buffer.length);
}
in.close();
}catch(Exception e){
e.printStackTrace();
}
smb://guest:[email protected]/share/a.txt
这个url的开始部分smb:// 说明了这是一个smb类型的url；接下来的guest和1234分别是访问共享资源的用户名称和密码；@后面是要访问的资源的主机名或IP地址。最后是资源的共享文件夹名称和共享资源名。
Commons Net, 这个包还是很实用的，封装了很多网络协议。
要设定二进制方式，否在一些文件不完整。
//设置被动模式
ftpClient.enterLocalPassiveMode();
//设置以二进制方式传输
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
如果使用InputStream读取字节流，不能一次读写完， 要分次读取
InputStream in =ftpClient.retrieveFileStream(new String(downLoadFileName.getBytes("UTF-8"), "UTF-8"));
//int size=in.available();
Long t = ftpFile.getSize();
int size=t.intValue();
byte[] buffer = new byte[t.intValue()];
byte[] tmp = new byte[1024];
int length = -1;
int count=0;
while ((length=in.read(tmp))!= -1) {
System.arraycopy(tmp, 0, buffer, count, length);
count=count+length;
}
is.write(buffer);
in.close();
is.close();
例子1： 基于Apache Common-net Ftp实例 http://www.iteye.com/topic/1118804
package com.shine.Ftp.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPListParseEngine;
import org.apache.commons.net.ftp.FTPReply;
public class FTPUtil {
private FTPClient ftp = null;
/**
* Ftp服务器
*/
private String server;
/**
* 用户名
*/
private String uname;
/**
* 密码
*/
private String password;
/**
* 连接端口，默认21
*/
private int port = 21;
public FTPUtil() {
}
/**
* 连接FTP服务器
*
* @param server
* @param uname
* @param password
* @return
* @throws Exception
*/
public FTPClient connectFTPServer(String server, int port, String uname,
String password) throws Exception {
//初始化并保存信息
this.server = server ;
this.port = port ;
this.uname = uname ;
this.password = password ;
ftp = new FTPClient();
try {
ftp.configure(getFTPClientConfig());
ftp.connect(this.server, this.port);
ftp.login(this.uname, this.password);
// 文件类型,默认是ASCII
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
// 设置被动模式
ftp.enterLocalPassiveMode();
ftp.setConnectTimeout(2000);
ftp.setControlEncoding("GBK");
// 响应信息
int replyCode = ftp.getReplyCode();
if ((!FTPReply.isPositiveCompletion(replyCode))) {
// 关闭Ftp连接
closeFTPClient();
// 释放空间
ftp = null;
throw new Exception("登录FTP服务器失败,请检查![Server:" + server + "、"
+ "User:" + uname + "、" + "Password:" + password);
} else {
return ftp;
}
} catch (Exception e) {
ftp.disconnect();
ftp = null;
throw e;
}
}
/**
* 配置FTP连接参数
*
* @return
* @throws Exception
*/
public FTPClientConfig getFTPClientConfig() throws Exception {
String systemKey = FTPClientConfig.SYST_NT;
String serverLanguageCode = "zh";
FTPClientConfig conf = new FTPClientConfig(systemKey);
conf.setServerLanguageCode(serverLanguageCode);
conf.setDefaultDateFormatStr("yyyy-MM-dd");
return conf;
}
/**
* 上传文件到FTP根目录
*
* @param localFile
* @param newName
* @throws Exception
*/
public void uploadFile(String localFile, String newName) throws Exception {
InputStream input = null;
try {
File file = null;
if (checkFileExist(localFile)) {
file = new File(localFile);
}
input = new FileInputStream(file);
boolean result = ftp.storeFile(newName, input);
if (!result) {
throw new Exception("文件上传失败!");
}
} catch (Exception e) {
throw e;
} finally {
if (input != null) {
input.close();
}
}
}
/**
* 上传文件到FTP根目录
*
* @param input
* @param newName
* @throws Exception
*/
public void uploadFile(InputStream input, String newName) throws Exception {
try {
boolean result = ftp.storeFile(newName, input);
if (!result) {
throw new Exception("文件上传失败!");
}
} catch (Exception e) {
throw e;
} finally {
if (input != null) {
input.close();
}
}
}
/**
* 上传文件到指定的FTP路径下
*
* @param localFile
* @param newName
* @param remoteFoldPath
* @throws Exception
*/
public void uploadFile(String localFile, String newName,
String remoteFoldPath) throws Exception {
InputStream input = null;
try {
File file = null;
if (checkFileExist(localFile)) {
file = new File(localFile);
}
input = new FileInputStream(file);
// 改变当前路径到指定路径
this.changeDirectory(remoteFoldPath);
boolean result = ftp.storeFile(newName, input);
if (!result) {
throw new Exception("文件上传失败!");
}
} catch (Exception e) {
throw e;
} finally {
if (input != null) {
input.close();
}
}
}
/**
* 上传文件到指定的FTP路径下
*
* @param input
* @param newName
* @param remoteFoldPath
* @throws Exception
*/
public void uploadFile(InputStream input, String newName,
String remoteFoldPath) throws Exception {
try {
// 改变当前路径到指定路径
this.changeDirectory(remoteFoldPath);
boolean result = ftp.storeFile(newName, input);
if (!result) {
throw new Exception("文件上传失败!");
}
} catch (Exception e) {
throw e;
} finally {
if (input != null) {
input.close();
}
}
}
/**
* 从FTP指定的路径下载文件
*
* @param remotePath
* @param localPath
*/
public void downloadFile(String remotePath, String localPath)
throws Exception {
OutputStream output = null;
try {
File file = null;
if (checkFileExist(localPath)) {
file = new File(localPath);
}
output = new FileOutputStream(file);
boolean result = ftp.retrieveFile(remotePath, output);
if (!result) {
throw new Exception("文件下载失败!");
}
} catch (Exception e) {
throw e;
} finally {
if (output != null) {
output.close();
}
}
}
/**
* 从FTP指定的路径下载文件
*
* @param remoteFilePath
* @return
* @throws Exception
*/
public InputStream downFile(String remoteFilePath) throws Exception {
return ftp.retrieveFileStream(remoteFilePath);
}
/**
* 获取FTP服务器上指定路径下的文件列表
*
* @param filePath
* @return
*/
public List<String> getFtpServerFileList(String filePath) throws Exception {
List<String> nlist = new ArrayList<String>();
FTPListParseEngine engine = ftp.initiateListParsing(filePath);
List<FTPFile> ftpfiles = Arrays.asList(engine.getNext(25));
return getFTPServerFileList(nlist,ftpfiles);
}
/**
* 获取FTP服务器上指定路径下的文件列表
* @param path
* @return
* @throws Exception
*/
public List<String> getFileList(String path) throws Exception {
List<String> nlist = new ArrayList<String>();
List<FTPFile> ftpfiles = Arrays.asList(ftp.listFiles(path));
return getFTPServerFileList(nlist,ftpfiles);
}
/**
* 列出FTP服务器文件列表信息
* @param nlist
* @param ftpFiles
* @return
*/
public List<String> getFTPServerFileList(List<String> nlist,List<FTPFile> ftpFiles){
if(ftpFiles==null || ftpFiles.size()==0)
return nlist;
for (FTPFile ftpFile : ftpFiles) {
if (ftpFile.isFile()) {
nlist.add(ftpFile.getName());
}
}
return nlist;
}
/**
* 改变工作目录，如失败则创建文件夹
*
* @param remoteFoldPath
*/
public void changeDirectory(String remoteFoldPath) throws Exception {
if (remoteFoldPath != null) {
boolean flag = ftp.changeWorkingDirectory(remoteFoldPath);
if (!flag) {
ftp.makeDirectory(remoteFoldPath);
ftp.changeWorkingDirectory(remoteFoldPath);
}
}
}
/**
* 检查文件是否存在
*
* @param filePath
* @return
* @throws Exception
*/
public boolean checkFileExist(String filePath) throws Exception {
boolean flag = false;
File file = new File(filePath);
if (!file.exists()) {
throw new Exception("文件不存在,请检查!");
} else {
flag = true;
}
return flag;
}
/**
* 获取文件名,不包括后缀
*
* @param filePath
* @return
*/
public String getFileNamePrefix(String filePath) throws Exception {
boolean flag = this.checkFileExist(filePath);
if (flag) {
File file = new File(filePath);
String fileName = file.getName();
String _fileName = fileName.substring(0, fileName.lastIndexOf("."));
return _fileName;
}
return null;
}
/**
* 关闭FTP连接
*
* @param ftp
* @throws Exception
*/
public void closeFTPClient(FTPClient ftp) throws Exception {
try {
if (ftp.isConnected())
ftp.disconnect();
} catch (Exception e) {
throw new Exception("关闭FTP服务出错!");
}
}
/**
* 关闭FTP连接
*
* @throws Exception
*/
public void closeFTPClient() throws Exception {
this.closeFTPClient(this.ftp);
}
/**
* Get Attribute Method
*
*/
public FTPClient getFtp() {
return ftp;
}
public String getServer() {
return server;
}
public String getUname() {
return uname;
}
public String getPassword() {
return password;
}
public int getPort() {
return port;
}
/**
* Set Attribute Method
*
*/
public void setFtp(FTPClient ftp) {
this.ftp = ftp;
}
public void setServer(String server) {
this.server = server;
}
public void setUname(String uname) {
this.uname = uname;
}
public void setPassword(String password) {
this.password = password;
}
public void setPort(int port) {
this.port = port;
}
/**
* 主方法(测试)
*
* @param args
*/
public static void main(String[] args) {
try {
FTPUtil fu = new FTPUtil();
fu.connectFTPServer("192.168.11.28", 21, "Ftpuser", "sunshine");
} catch (Exception e) {
System.out.println("异常信息：" + e.getMessage());
}
}
}
例子2: 利用commons-net包实现ftp上传下载例子 http://sosuny.iteye.com/blog/888884
下载文件的时候注意一下，第一个参数要用iso-8859_1编码的，否则文件大小等于0！
直接贴图代码了：
package ftp2;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.SocketException;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;
/**
* 使用commons的net包进行ftp链接. 相关包：commons-net-1.4.1.jar ;
* commons-io-1.2.jar;jakarta-oro-2.0.8.jar测试通过.可以列出ftp上的文件
* 通过把ftp服务器上的文件流连接到outSteam及可以把文件下载到本机的目录..限制如果目录为中文则需要处理.最好使用英文文件名
*
*/
public class ListFtpFile {
private FTPClient ftpClient = new FTPClient();
private OutputStream outSteam = null;
/**
* ftp服务器地址
*/
private String hostName = "192.168.0.2";
private int port = 212;
/**
* 登录名
*/
private String userName = "anonymous";//匿名登录
/**
* 登录密码
*/
private String password = "[email protected]";//随便一个地址
/**
* 需要访问的远程目录
*/
private String remoteDir = "/software/dreamweaver/";
/**
* 下载
*/
private void download() {
try {
// 链接到ftp服务器
ftpClient.connect(hostName,port);
System.out.println("连接到ftp服务器：" + hostName + " 成功..开始登录");
// 登录.用户名 密码
boolean b = ftpClient.login(userName, password);
System.out.println("登录成功." + b);
// 检测连接是否成功
int reply = ftpClient.getReplyCode();
if(!FTPReply.isPositiveCompletion(reply)) {
ftpClient.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
ftpClient.setControlEncoding("GBK");
FTPClientConfig conf = new FTPClientConfig(FTPClientConfig.SYST_NT);
conf.setServerLanguageCode("zh");
FTPFile[] remoteFiles = ftpClient.listFiles(remoteDir);
if (remoteFiles != null) {
for (int i = 0; i < remoteFiles.length; i++) {
String name = remoteFiles[i].getName();
//下载
File localFile = new File("c:/001/ftp/" + name);
OutputStream is = new FileOutputStream(localFile);
//retrieveFile的第一个参数需要是 ISO-8859-1 编码,并且必须是完整路径！
String fileName = remoteDir + name;
ftpClient.retrieveFile(new String(fileName.getBytes("GBK"),"ISO-8859-1"), is);
is.close();
//打印
long length = remoteFiles[i].getSize();
String readableLength = FileUtils.byteCountToDisplaySize(length);
System.out.println(name + ":\t"+remoteFiles[i].isFile()+"\t" + readableLength);
}
}
ftpClient.logout();
} catch (Exception e) {
e.printStackTrace();
} finally {
IOUtils.closeQuietly(outSteam);
try {
ftpClient.disconnect();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
/**
* 上传
* */
public void upload(){
String srcUrl = "C:/001/菜单权限设计.doc";
String targetFileName = "菜单权限设计.doc";
try {
ftpClient.connect(hostName,port);
boolean b = ftpClient.login(userName, password);
// 检测连接是否成功
int reply = ftpClient.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftpClient.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
ftpClient.setControlEncoding("GBK");
FTPClientConfig conf = new FTPClientConfig(FTPClientConfig.SYST_NT);
conf.setServerLanguageCode("zh");
File srcFile = new File(srcUrl);
FileInputStream fis = null;
fis = new FileInputStream(srcFile);
// 设置上传目录
ftpClient.changeWorkingDirectory(remoteDir);
ftpClient.setBufferSize(1024);
ftpClient.setControlEncoding("GBK");
// 设置文件类型（二进制）
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
// 上传
b = ftpClient.storeFile(targetFileName, fis);
IOUtils.closeQuietly(fis);
/*boolean bool = ftpClient.changeWorkingDirectory("/NC");
System.out.println("changeWorkingDirectory="+bool);
bool = ftpClient.makeDirectory("/NC");
System.out.println("makeDirectory="+bool);*/
ftpClient.logout();
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}finally{
try {
ftpClient.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 测试
* */
public static void main(String[] args) {
ListFtpFile listFtpfiles = new ListFtpFile();
listFtpfiles.download();
listFtpfiles.upload();
}
}
java apache.commons.net ftp 上传下载移动删除 http://www.yanjoy.com/node/39
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.SocketException;
import java.util.TimeZone;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPReply;
/**
* @spring.bean id="apachecommonsnetftp"
* @author lhb http://www.yanjoy.com
*
*/
public class FTPCommon implements FTPInterface {
private Log log = LogFactory.getLog(this.getClass());
private FTPClient ftpClient;
private String username;
private String password;
private String url;
private int port;
public FTPCommon() {
super();
// 从配置文件中读取初始化信息
this.ftpClient = new FTPClient();
}
/**
* 连接并登录FTP服务器
*
*/
public boolean ftpLogin() {
this.ftpClient = new FTPClient();
boolean isLogin = false;
FTPClientConfig ftpClientConfig = new FTPClientConfig(
FTPClientConfig.SYST_NT);
ftpClientConfig.setServerTimeZoneId(TimeZone.getDefault().getID());
this.ftpClient.setControlEncoding("UTF-8");
this.ftpClient.configure(ftpClientConfig);
try {
if (this.port> 0) {
this.ftpClient.connect(this.url, this.port);
} else {
this.ftpClient.connect(this.url);
}
// FTP服务器连接回答
int reply = this.ftpClient.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
this.ftpClient.disconnect();
return isLogin;
}
if(!this.ftpClient.login(this.username, this.password)){
return isLogin;
}
//this.ftpClient.changeWorkingDirectory(this.ftpEntity.getRemoteDir());
this.ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
// log.infoOutPut("成功登陆FTP服务器：" + this.ftpEntity.getUrl() + " 端口号："
// + this.getFtpModel().getPort() + " 目录："
// + this.ftpEntity.getRemoteDir());
isLogin = true;
} catch (SocketException e) {
e.printStackTrace();
// log.logPrint("连接FTP服务失败！", Constants.LOG_EXCEPTION);
// log.logPrint(e.getMessage(), Constants.LOG_EXCEPTION);
} catch (IOException e) {
e.printStackTrace();
// log.logPrint("登录FTP服务失败！", Constants.LOG_EXCEPTION);
// log.logPrint(e.getMessage(), Constants.LOG_EXCEPTION);
}
System.out.println(this.ftpClient.getBufferSize());
this.ftpClient.setBufferSize(1024 * 2);
this.ftpClient.setDataTimeout(2000);
return isLogin;
}
/**
* 退出并关闭FTP连接
*
*/
public void close() {
if (null != this.ftpClient && this.ftpClient.isConnected()) {
try {
boolean reuslt = this.ftpClient.logout();// 退出FTP服务器
if (reuslt) {
// log.info("退出并关闭FTP服务器的连接");
}
} catch (IOException e) {
e.printStackTrace();
log.error("退出FTP服务器异常！");
log.error(e.getMessage());
} finally {
try {
this.ftpClient.disconnect();// 关闭FTP服务器的连接
} catch (IOException e) {
e.printStackTrace();
log.error("关闭FTP服务器的连接异常！");
log.error(e.getMessage());
}
}
}
}
/**
* 检查FTP服务器是否关闭，如果关闭接则连接登录FTP
*
* @return
*/
public boolean isOpenFTPConnection() {
boolean isOpen = false;
if (null == this.ftpClient) {
return false;
}
try {
// 没有连接
if (!this.ftpClient.isConnected()) {
isOpen = this.ftpLogin();
}
} catch (Exception e) {
e.printStackTrace();
log.error("FTP服务器连接登录异常！");
log.error(e.getMessage());
isOpen = false;
}
return isOpen;
}
/**
* 设置传输文件的类型[文本文件或者二进制文件]
*
* @param fileType--FTPClient.BINARY_FILE_TYPE,FTPClient.ASCII_FILE_TYPE
*/
public void setFileType(int fileType) {
try {
this.ftpClient.setFileType(fileType);
} catch (IOException e) {
e.printStackTrace();
// log.exception("设置传输文件的类型异常！");
// log.exception(e.getMessage());
}
}
/**
* 下载文件
*
* @param localFilePath
* 本地文件名及路径
* @param remoteFileName
* 远程文件名称
* @return
*/
public boolean downloadFile(String localFilePath, String remoteFileName) {
BufferedOutputStream outStream = null;
boolean success = false;
try {
outStream = new BufferedOutputStream(new FileOutputStream(
localFilePath));
success = this.ftpClient.retrieveFile(remoteFileName, outStream);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (outStream != null) {
try {
outStream.flush();
outStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return success;
}
/**
* 下载文件
*
* @param localFilePath
* 本地文件
* @param remoteFileName
* 远程文件名称
* @return
*/
public boolean downloadFile(File localFile, String remoteFileName) {
BufferedOutputStream outStream = null;
FileOutputStream outStr = null;
InputStream inStream = null;
boolean success = false;
try {
outStr = new FileOutputStream(localFile);
outStream = new BufferedOutputStream(outStr);
//success = this.ftpClient.retrieveFile(remoteFileName, outStream);
inStream = this.ftpClient.retrieveFileStream(remoteFileName);
byte[] bytes = new byte[1024];
int c;
while ((c = inStream.read(bytes)) != -1)
{
outStr.write(bytes, 0, c);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (null != outStream) {
try {
outStream.flush();
outStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if(null != inStream){
inStream.close();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != outStr) {
outStr.flush();
outStr.close();
}
if(null != inStream){
inStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
return success;
}
/**
*
* @param outStream
* @param remoteFileName
* @return
*/
public OutputStream downloadFile(OutputStream outStream, String remoteFileName) {
BufferedOutputStream bufferOutStream = null;
boolean success = false;
try {
bufferOutStream = new BufferedOutputStream(outStream);
success = this.ftpClient.retrieveFile(remoteFileName, bufferOutStream);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return bufferOutStream;
}
/**
* 上传文件
*
* @param localFilePath
* 本地文件路径及名称
* @param remoteFileName
* FTP 服务器文件名称
* @return
*/
public boolean uploadFile(String localFilePath, String remoteFileName) {
BufferedInputStream inStream = null;
OutputStream osStrem = null;
boolean success = false;
try {
inStream = new BufferedInputStream(new FileInputStream(
localFilePath));
osStrem = this.ftpClient.storeFileStream(remoteFileName);
byte[] bytes = new byte[1024];
int c;
while ((c = inStream.read(bytes)) != -1) {
osStrem.write(bytes, 0, c);
}
success = true;
//success = this.ftpClient.storeFile(new String(remoteFileName.getBytes("UTF-8"), "ISO-8859-1"), inStream);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (inStream != null) {
inStream.close();
}
if(osStrem!=null){
osStrem.flush();
osStrem.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return success;
}
/**
* 上传文件
*
* @param localFilePath
* 本地文件
* @param remoteFileName
* FTP 服务器文件名称
* @return
*/
public boolean uploadFile(File localFile, String remoteFileName) {
BufferedInputStream inStream = null;
boolean success = false;
try {
inStream = new BufferedInputStream(new FileInputStream(localFile));
success = this.ftpClient.storeFile(remoteFileName, inStream);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (inStream != null) {
try {
inStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return success;
}
/**
* 删除FTP服务器上文件
* @param remoteFileName
* FTP 服务器文件名称
* @return
*/
public boolean delFile(String remoteFileName){
boolean success = false;
try {
success = this.ftpClient.deleteFile(remoteFileName);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
/**
* 删除FTP服务器上文件夹中的所有文件
* @param remoteDir
* @return
*/
public boolean delAllFile(String remoteDir){
boolean success = false;
try {
this.ftpClient.changeWorkingDirectory(remoteDir);
String files[] = null;
files = this.ftpClient.listNames();
if(files!=null){
for(int i=0;i<files.length;i++){
success = this.ftpClient.deleteFile(files[i]);
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
/**
* 删除FTP服务器上文件夹中的所有文件
* @param remoteDir
* @return
*/
public boolean delAllFile(){
boolean success = false;
try {
String files[] = null;
files = this.ftpClient.listNames();
if(files!=null){
for(int i=0;i<files.length;i++){
success = this.ftpClient.deleteFile(files[i]);
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
/**
* 删除目录
* @param pathname
* @return
*/
public boolean deleteDirectory(String pathname){
boolean success = false;
try {
success = this.ftpClient.removeDirectory(pathname);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
/**
* 移动文件或重命名
* @param fromFile
* @param toFile
* @return
*/
public boolean moveFile(String fromFile, String toFile) {
boolean success = false;
try {
success = this.ftpClient.rename(fromFile, toFile);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
/**
* 创建文件夹
* @param dir
* @return
*/
public boolean makeDirectory(String dir){
boolean success = false;
try {
success = this.ftpClient.makeDirectory(dir);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return success;
}
/**
* 变更工作目录
*
* @param remoteDir--目录路径
*/
public void changeDir(String remoteDir) {
try {
this.ftpClient.changeWorkingDirectory(remoteDir);
// log.info("变更工作目录为:" + remoteDir);
} catch (IOException e) {
e.printStackTrace();
log.error("变更工作目录为:" + remoteDir + "时出错！");
log.error(e.getMessage());
}
}
/**
* 变更工作目录
*
* @param remoteDir--目录路径
*/
public void changeDir(String[] remoteDirs) {
String dir = "";
try {
for (int i = 0; i < remoteDirs.length; i++) {
this.ftpClient.changeWorkingDirectory(remoteDirs[i]);
dir = dir + remoteDirs[i] + "/";
}
// log.info("变更工作目录为:" + dir);
} catch (IOException e) {
e.printStackTrace();
log.error("变更工作目录为:" + dir + "时出错！");
log.error(e.getMessage());
}
}
/**
* 返回上级目录
*
*/
public void toParentDir(String[] remoteDirs) {
try {
for (int i = 0; i < remoteDirs.length; i++) {
this.ftpClient.changeToParentDirectory();
}
// log.info("返回上级目录");
} catch (IOException e) {
e.printStackTrace();
log.error("返回上级目录时出错！");
log.error(e.getMessage());
}
}
/**
* 返回上级目录
*
*/
public void toParentDir() {
try {
this.ftpClient.changeToParentDirectory();
log.info("返回上级目录");
} catch (IOException e) {
e.printStackTrace();
log.error("返回上级目录时出错！");
log.error(e.getMessage());
}
}
/**
* 获得FTP 服务器下所有的文件名列表
*
* @param regex
* @return
*/
public String[] getListFiels() {
String files[] = null;
try {
files = this.ftpClient.listNames();
} catch (IOException e) {
e.printStackTrace();
}
return files;
}
public FTPClient getFtpClient() {
return ftpClient;
}
public void init(String server,
int port,
String userName,
String userPassword) {
// TODO Auto-generated method stub
this.url = server;
this.port =port;
this.username = userName;
this.password = userPassword;
}
}
java.net支持： Java读取远程文件[Http,ftp]，并保存
import java.net.*;
import java.io.*;
/*
* Created on 2007-6-1
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
/**
* @author howard
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class TestUrl {
public boolean saveUrlAs(String photoUrl, String fileName) {
try {
URL url = new URL(photoUrl);
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
DataInputStream in = new DataInputStream(connection
.getInputStream());
DataOutputStream out = new DataOutputStream(new FileOutputStream(
fileName));
byte[] buffer = new byte[4096];
int count = 0;
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
out.close();
in.close();
return true;
} catch (Exception e) {
System.out.println(e);
return false;
}
}
/**
* 兼容HTTP和FTP协议
* @param urlString
* @return
*/
public String getDocumentAt(String urlString) {
StringBuffer document = new StringBuffer();
try {
URL url = new URL(urlString);
URLConnection conn = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(
conn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
document.append(line + "\n");
}
reader.close();
} catch (MalformedURLException e) {
System.out.println("Unable to connect to URL: " + urlString);
} catch (IOException e) {
System.out.println("IOException when connecting to URL: "
+ urlString);
}
return document.toString();
}
/**
*
* @param args
*/
public static void main(String[] args) {
TestUrl test = new TestUrl();
String photoUrl = "http://www.zhplc.com/468x60.gif";
String fileName = photoUrl.substring(photoUrl.lastIndexOf("/"));
String filePath = "c:\\";
boolean flag = test.saveUrlAs(photoUrl, filePath + fileName);
System.out.println("Run ok!\n Get URL file " + flag);
}
}