本文目录一览:
- Java FTPClient 连接FTP,上传文件,不能以中文保存
- FTP软件应如何设置才能支持带中文文件名的文件正常上传下载?
- 怎么用Java实现FTP上传
- java 实现ftp上传下载,windows下和linux下游何区别?
- 如何在Java程序中实现FTP的上传下载功能
- java中怎么实现ftp文件传输
Java FTPClient 连接FTP,上传文件,不能以中文保存
在连接之前设置 ftpClient.setControlEncoding("GBK");
,连接之后再设置是没有作用的。
FTP软件应如何设置才能支持带中文文件名的文件正常上传下载?
FTP上传文件时,必须使用英文字符或数据的文件名才能上传,或者是两个字的汉字才能上传到服务器的话:
- 进入 ServerU 管理端界面,点击“服务器限制和设置”分类功能按钮。
- 在 ServerU 服务器限制和设置界面,选择“FTP设置”页签,点击窗口下面的“全局设置”按钮。
- 在打开的“FTP命令属性”界面,去掉最后一行的勾选,即不要勾选“对所有已收发的路径和文件名使用UTF-8编码”。
- 选择“FTP设置”页签,禁用“OPTS UTF8”。 完成上面的两处改变后,无法上传中文名称的文件的问题应该已经解决了。
怎么用Java实现FTP上传
sun.net..
,该类库主要提供了用于建立FTP连接的类。利用这些类的方法,编程人员可以远程登录到FTP服务器,列举该服务器上的目录,设置传输协议,以及传送文件。FtpClient
类涵盖了几乎所有FTP的功能,FtpClient
的实例变量保存了有关建立“代理”的各种信息。下面给出了这些实例变量:
public static boolean useFtpProxy
这个变量用于表明FTP传输过程中是否使用了一个代理,因此,它实际上是一个标记,此标记若为TRUE
,表明使用了一个代理主机。public static String ftpProxyHost
此变量只有在变量useFtpProxy
为TRUE
时才有效,用于保存代理主机名。public static int ftpProxyPort
此变量只有在变量useFtpProxy
为TRUE
时才有效,用于保存代理主机的端口地址。FtpClient
有三种不同形式的构造函数,如下所示:
public FtpClient(String hostname, int port)
此构造函数利用给出的主机名和端口号建立一条FTP连接。public FtpClient(String hostname)
此构造函数利用给出的主机名建立一条FTP连接,使用默认端口号。FtpClient()
此构造函数将创建一个FtpClient
类,但不建立FTP连接。这时,FTP连接可以用openServer
方法建立。 一旦建立了类FtpClient
,就可以用这个类的方法来打开与FTP服务器的连接。类FtpClient
提供了如下两个可用于打开与FTP服务器之间的连接的方法:
public void openServer(String hostname)
这个方法用于建立一条与指定主机上的FTP服务器的连接,使用默认端口号。public void openServer(String host, int port)
这个方法用于建立一条与指定主机、指定端口上的FTP服务器的连接。 打开连接之后,接下来的工作是注册到FTP服务器。这时需要利用下面的方法:public void login(String username, String password)
此方法利用参数username
和password
登录到FTP服务器。使用过 Internet 的用户应该知道,匿名FTP服务器的登录用户名为anonymous
,密码一般用自己的电子邮件地址。 下面是FtpClient
类所提供的一些控制命令:public void cd(String remoteDirectory)
:该命令用于把远程系统上的目录切换到参数remoteDirectory
所指定的目录。public void cdUp()
:该命令用于把远程系统上的目录切换到上一级目录。public String pwd()
:该命令可显示远程系统上的目录状态。public void binary()
:该命令可把传输格式设置为二进制格式。public void ascii()
:该命令可把传输协议设置为ASCII码格式。public void rename(String string, String string1)
:该命令可对远程系统上的目录或者文件进行重命名操作。 除了上述方法外,类FtpClient
还提供了可用于传递并检索目录清单和文件的若干方法。这些方法返回的是可供读或写的输入、输出流。下面是其中一些主要的方法:public TelnetInputStream list()
返回与远程机器上当前目录相对应的输入流。public TelnetInputStream get(String filename)
获取远程机器上的文件filename
,借助TelnetInputStream
把该文件传送到本地。public TelnetOutputStream put(String filename)
以写方式打开一输出流,通过这一输出流把文件filename
传送到远程计算机。
示例代码
package myUtil;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import sun.net.TelnetInputStream;
import sun.net.TelnetOutputStream;
import sun.net.;
/**
* ftp上传,下载
*
* @author why 2009-07-30
*
*/
public class FtpUtil {
private String ip = "";
private String username = "";
private String password = "";
private int port = -1;
private String path = "";
FtpClient ftpClient = null;
OutputStream os = null;
FileInputStream is = null;
public FtpUtil(String serverIP, String username, String password) {
this.ip = serverIP;
this.username = username;
this.password = password;
}
public FtpUtil(String serverIP, int port, String username, String password) {
this.ip = serverIP;
this.username = username;
this.password = password;
this.port = port;
}
/**
* 连接ftp服务器
*
* @throws IOException
*/
public boolean connectServer() {
ftpClient = new FtpClient();
try {
if (this.port != -1) {
ftpClient.openServer(this.ip, this.port);
} else {
ftpClient.openServer(this.ip);
}
ftpClient.login(this.username, this.password);
if (this.path.length() != 0) {
ftpClient.cd(this.path); // path是ftp服务下主目录的子目录
}
ftpClient.binary(); // 用2进制上传、下载
System.out.println("已登录到\"" + ftpClient.pwd() + "\"目录");
return true;
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
/**
* 断开与ftp服务器连接
*
* @throws IOException
*/
public boolean closeServer() {
try {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
if (ftpClient != null) {
ftpClient.closeServer();
}
System.out.println("已从服务器断开");
return true;
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
/**
* 检查文件夹在当前目录下是否存在
*
* @param dir
* @return
*/
private boolean isDirExist(String dir) {
String pwd = "";
try {
pwd = ftpClient.pwd();
ftpClient.cd(dir);
ftpClient.cd(pwd);
} catch (Exception e) {
return false;
}
return true;
}
/**
* 在当前目录下创建文件夹
*
* @param dir
* @return
* @throws Exception
*/
private boolean createDir(String dir) {
try {
ftpClient.ascii();
StringTokenizer s = new StringTokenizer(dir, "/"); // sign
s.countTokens();
String pathName = ftpClient.pwd();
while (s.hasMoreElements()) {
pathName = pathName + "/" + (String) s.nextElement();
try {
ftpClient.sendServer("MKD " + pathName + "\r\n");
} catch (Exception e) {
e = null;
return false;
}
ftpClient.readServerResponse();
}
ftpClient.binary();
return true;
} catch (IOException e1) {
e1.printStackTrace();
return false;
}
}
/**
* ftp上传 如果服务器段已存在名为filename的文件夹,该文件夹中与要上传的文件夹中同名的文件将被替换
*
* @param filename 要上传的文件(或文件夹)名
* @return
* @throws Exception
*/
public boolean upload(String filename) {
String newname = "";
if (filename.indexOf("/") -1) {
newname = filename.substring(filename.lastIndexOf("/") + 1);
} else {
newname = filename;
}
return upload(filename, newname);
}
/**
* ftp上传 如果服务器段已存在名为newName的文件夹,该文件夹中与要上传的文件夹中同名的文件将被替换
*
* @param fileName 要上传的文件(或文件夹)名
* @param newName 服务器段要生成的文件(或文件夹)名
* @return
*/
public boolean upload(String fileName, String newName) {
try {
String savefilename = new String(fileName.getBytes("GBK"), "GBK");
File file_in = new File(savefilename); // 打开本地待长传的文件
if (!file_in.exists()) {
throw new Exception("此文件或文件夹[" + file_in.getName() + "]有误或不存在!");
}
if (file_in.isDirectory()) {
upload(file_in.getPath(), newName, ftpClient.pwd());
} else {
uploadFile(file_in.getPath(), newName);
}
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
return true;
} catch (Exception e) {
e.printStackTrace();
System.err.println("Exception e in Ftp upload(): " + e.toString());
return false;
} finally {
try {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 真正用于上传的方法
*
* @param fileName
* @param newName
* @param path
* @throws Exception
*/
private void upload(String fileName, String newName, String path) throws Exception {
String savefilename = new String(fileName.getBytes("ISO-8859-1"), "GBK");
File file_in = new File(savefilename); // 打开本地待长传的文件
if (!file_in.exists()) {
throw new Exception("此文件或文件夹[" + file_in.getName() + "]有误或不存在!");
}
if (file_in.isDirectory()) {
if (!isDirExist(newName)) {
createDir(newName);
}
ftpClient.cd(newName);
File sourceFile[] = file_in.listFiles();
for (int i = 0; i < sourceFile.length; i++) {
if (!sourceFile[i].exists()) {
continue;
}
if (sourceFile[i].isDirectory()) {
this.upload(sourceFile[i].getPath(), sourceFile[i].getName(), path + "/" + newName);
} else {
this.uploadFile(sourceFile[i].getPath(), sourceFile[i].getName());
}
}
} else {
uploadFile(file_in.getPath(), newName);
}
ftpClient.cd(path);
}
/**
* upload 上传文件
*
* @param filename 要上传的文件名
* @param newname 上传后的新文件名
* @return -1 文件不存在 =0 成功上传,返回文件的大小
* @throws Exception
*/
public long uploadFile(String filename, String newname) throws Exception {
long result = 0;
TelnetOutputStream os = null;
FileInputStream is = null;
try {
java.io.File file_in = new java.io.File(filename);
if (!file_in.exists()) return -1;
os = ftpClient.put(newname);
result = file_in.length();
is = new FileInputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
}
} finally {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
}
return result;
}
/**
* 从ftp下载文件到本地
*
* @param filename 服务器上的文件名
* @param newfilename 本地生成的文件名
* @return
* @throws Exception
*/
public long downloadFile(String filename, String newfilename) {
long result = 0;
TelnetInputStream is = null;
FileOutputStream os = null;
try {
is = ftpClient.get(filename);
java.io.File outfile = new java.io.File(newfilename);
os = new FileOutputStream(outfile);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
result = result + c;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return result;
}
/**
* 取得相对于当前连接目录的某个目录下所有文件列表
*
* @param path
* @return
*/
public List getFileList(String path) {
List list = new ArrayList();
DataInputStream dis;
try {
dis = new DataInputStream(ftpClient.nameList(this.path + path));
String filename = "";
while ((filename = dis.readLine()) != null) {
list.add(filename);
}
} catch (IOException e) {
e.printStackTrace();
}
return list;
}
public static void main(String[] args) {
FtpUtil ftp = new FtpUtil("192.168.11.11", "111", "1111");
boolean result = ("C:/Documents and Settings/ipanel/桌面/java/Hibernate_HQL.docx", "amuse/audioTest/music/Hibernate_HQL.docx");
System.out.println(result ? "上传成功!" : "上传失败!");
}
}
java 实现ftp上传下载,windows下和linux下游何区别?
package com.weixin.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.RandomAccessFile;
import org.apache.commons.net.PrintCommandListener;
import org.apache.commons.net.FTPClient;
import org.apache.commons.net.FTPFile;
import org.apache.commons.net.FTPReply;
import com.weixin.constant.DownloadStatus;
import com.weixin.constant.UploadStatus;
/**
* 支持断点续传的FTP实用类
* @version 0.1 实现基本断点上传下载
* @version 0.2 实现上传下载进度汇报
* @version 0.3 实现中文目录创建及中文文件创建,添加对于中文的支持
*/
public class ContinueFTP {
public FTPClient ftpClient = new FTPClient();
public ContinueFTP(){
// 设置将过程中使用到的命令输出到控制台
this.ftpClient.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));
}
/**
* 连接到FTP服务器
* @param hostname 主机名
* @param port 端口
* @param username 用户名
* @param password 密码
* @return 是否连接成功
* @throws IOException
*/
public boolean connect(String hostname, int port, String username, String password) throws IOException {
ftpClient.connect(hostname, port);
ftpClient.setControlEncoding("GBK");
if (FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
if (ftpClient.login(username, password)) {
return true;
}
}
disconnect();
return false;
}
/**
* 从FTP服务器上下载文件,支持断点续传,上传百分比汇报
* @param remote 远程文件路径
* @param local 本地文件路径
* @return 上传的状态
* @throws IOException
*/
public DownloadStatus download(String remote, String local) throws IOException {
// 设置被动模式
ftpClient.enterLocalPassiveMode();
// 设置以二进制方式传输
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
DownloadStatus result;
// 检查远程文件是否存在
FTPFile[] files = ftpClient.listFiles(new String(remote.getBytes("GBK"), "iso-8859-1"));
if (files.length != 1) {
System.out.println("远程文件不存在");
return DownloadStatus.Remote_File_Noexist;
}
long lRemoteSize = files[0].getSize();
File f = new File(local);
// 本地存在文件,进行断点下载
if (f.exists()) {
long localSize = f.length();
// 判断本地文件大小是否大于远程文件大小
if (localSize >= lRemoteSize) {
System.out.println("本地文件大于远程文件,下载中止");
return DownloadStatus.Local_Bigger_Remote;
}
// 进行断点续传,并记录状态
FileOutputStream out = new FileOutputStream(f, true);
ftpClient.setRestartOffset(localSize);
InputStream in = ftpClient.retrieveFileStream(new String(remote.getBytes("GBK"), "iso-8859-1"));
byte[] bytes = new byte[1024];
long step = lRemoteSize / 100;
long process = localSize / step;
int c;
while ((c = in.read(bytes)) != -1) {
out.write(bytes, 0, c);
localSize += c;
long nowProcess = localSize / step;
if (nowProcess > process) {
process = nowProcess;
if (process % 10 == 0)
System.out.println("下载进度:" + process);
// TODO 更新文件下载进度,值存放在process变量中
}
}
in.close();
out.close();
boolean isDo = ftpClient.completePendingCommand();
if (isDo) {
result = DownloadStatus.Download_From_Break_Success;
} else {
result = DownloadStatus.Download_From_Break_Failed;
}
} else {
OutputStream out = new FileOutputStream(f);
InputStream in = ftpClient.retrieveFileStream(new String(remote.getBytes("GBK"), "iso-8859-1"));
byte[] bytes = new byte[1024];
long step = lRemoteSize / 100;
long process = 0;
long localSize = 0L;
int c;
while ((c = in.read(bytes)) != -1) {
out.write(bytes, 0, c);
localSize += c;
long nowProcess = localSize / step;
if (nowProcess > process) {
process = nowProcess;
if (process % 10 == 0)
System.out.println("下载进度:" + process);
// TODO 更新文件下载进度,值存放在process变量中
}
}
in.close();
out.close();
boolean upNewStatus = ftpClient.completePendingCommand();
if (upNewStatus) {
result = DownloadStatus.Download_New_Success;
} else {
result = DownloadStatus.Download_New_Failed;
}
}
return result;
}
/**
* 上传文件到FTP服务器,支持断点续传
* @param local 本地文件名称,绝对路径
* @param remote 远程文件路径,使用/home/directory1/subdirectory/file.ext 按照Linux上的路径指定方式,支持多级目录嵌套,支持递归创建不存在的目录结构
* @return 上传结果
* @throws IOException
*/
public UploadStatus upload(String local, String remote) throws IOException {
// 设置PassiveMode传输
ftpClient.enterLocalPassiveMode();
// 设置以二进制流的方式传输
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
ftpClient.setControlEncoding("GBK");
UploadStatus result;
// 对远程目录的处理
String remoteFileName = remote;
if (remote.contains("/")) {
remoteFileName = remote.substring(remote.lastIndexOf("/") + 1);
// 创建服务器远程目录结构,创建失败直接返回
if (CreateDirecroty(remote, ftpClient) == UploadStatus.Create_Directory_Fail) {
return UploadStatus.Create_Directory_Fail;
}
}
// 检查远程是否存在文件
FTPFile[] files = ftpClient.listFiles(new String(remoteFileName.getBytes("GBK"), "iso-8859-1"));
if (files.length == 1) {
long remoteSize = files[0].getSize();
File f = new File(local);
long localSize = f.length();
if (remoteSize == localSize) {
return UploadStatus.File_Exits;
} else if (remoteSize > localSize) {
return UploadStatus.Remote_Bigger_Local;
}
// 尝试移动文件内读取指针,实现断点续传
result = uploadFile(remoteFileName, f, ftpClient, remoteSize);
// 如果断点续传没有成功,则删除服务器上文件,重新上传
if (result == UploadStatus.Upload_From_Break_Failed) {
if (!ftpClient.deleteFile(remoteFileName)) {
return UploadStatus.Delete_Remote_Faild;
}
result = uploadFile(remoteFileName, f, ftpClient, 0);
}
} else {
result = uploadFile(remoteFileName, new File(local), ftpClient, 0);
}
return result;
}
/**
* 断开与远程服务器的连接
* @throws IOException
*/
public void disconnect() throws IOException {
if (ftpClient.isConnected()) {
ftpClient.disconnect();
}
}
/**
* 递归创建远程服务器目录
* @param remote 远程服务器文件绝对路径
* @param ftpClient FTPClient对象
* @return 目录创建是否成功
* @throws IOException
*/
public UploadStatus CreateDirecroty(String remote, FTPClient ftpClient) throws IOException {
UploadStatus status = UploadStatus.Create_Directory_Success;
String directory = remote.substring(0, remote.lastIndexOf("/") + 1);
if (!directory.equalsIgnoreCase("/") && !ftpClient.changeWorkingDirectory(new String(directory.getBytes("GBK"), "iso-8859-1"))) {
// 如果远程目录不存在,则递归创建远程服务器目录
int start = 0;
int end = 0;
if (directory.startsWith("/")) {
start = 1;
} else {
start = 0;
}
end = directory.indexOf("/", start);
while (true) {
String subDirectory = new String(remote.substring(start, end).getBytes("GBK"), "iso-8859-1");
if (!ftpClient.changeWorkingDirectory(subDirectory)) {
if (ftpClient.makeDirectory(subDirectory)) {
ftpClient.changeWorkingDirectory(subDirectory);
} else {
System.out.println("创建目录失败");
return UploadStatus.Create_Directory_Fail;
}
}
start = end + 1;
end = directory.indexOf("/", start);
// 检查所有目录是否创建完毕
if (end <= start) {
break;
}
}
}
return status;
}
/**
* 上传文件到服务器,新上传和断点续传
* @param remoteFile 远程文件名,在上传之前已经将服务器工作目录做了改变
* @param localFile 本地文件File句柄,绝对路径
* @param processStep 需要显示的处理进度步进值
* @param ftpClient FTPClient引用
* @return
* @throws IOException
*/
public UploadStatus uploadFile(String remoteFile, File localFile, FTPClient ftpClient, long remoteSize) throws IOException {
UploadStatus status;
// 显示进度的上传
long step = localFile.length() / 100;
long process = 0;
long localreadbytes = 0L;
RandomAccessFile raf = new RandomAccessFile(localFile, "r");
OutputStream out = ftpClient.appendFileStream(new String(remoteFile.getBytes("GBK"), "iso-8859-1"));
// 断点续传
if (remoteSize > 0) {
ftpClient.setRestartOffset(remoteSize);
process = remoteSize / step;
raf.seek(remoteSize);
localreadbytes = remoteSize;
}
byte[] bytes = new byte[1024];
int c;
while ((c = raf.read(bytes)) != -1) {
out.write(bytes, 0, c);
localreadbytes += c;
if (localreadbytes / step != process) {
process = localreadbytes / step;
System.out.println("上传进度:" + process);
// TODO 汇报上传状态
}
}
out.flush();
raf.close();
out.close();
boolean result = ftpClient.completePendingCommand();
if (remoteSize > 0) {
status = result ? UploadStatus.Upload_From_Break_Success : UploadStatus.Upload_From_Break_Failed;
} else {
status = result ? UploadStatus.Upload_New_File_Success : UploadStatus.Upload_New_File_Failed;
}
return status;
}
public static void main(String[] args) {
ContinueFTP myFtp = new ContinueFTP();
try {
System.err.println(myFtp.connect("10.10.6.236", 21, "5", "jieyan"));
myFtp.disconnect();
} catch (IOException e) {
System.out.println("连接FTP出错:" + e.getMessage());
}
}
}
如何在Java程序中实现FTP的上传下载功能
以下是这三部分的Java源程序:
(1) 显示FTP服务器上的文件
void ftpList_actionPerformed(ActionEvent e) {
String server = serverEdit.getText(); // 输入的FTP服务器的ip地址
String user = userEdit.getText(); // 登录FTP服务器的用户名
String passWord = passwordEdit.getText(); // 登录FTP服务器的用户名的口令
String path = pathEdit.getText(); // FTP服务器上的路径
try {
FtpClient ftpClient = new FtpClient(); // 创建FtpClient对象
ftpClient.openServer(server); // 连接FTP服务器
ftpClient.login(user, password); // 登录FTP服务器
if (path.length() != 0)
ftpClient.cd(path);
TelnetInputStream is = ftpClient.list();
int c;
while ((c = is.read()) != -1) {
System.out.print((char) c);
}
is.close();
ftpClient.closeServer(); // 退出FTP服务器
} catch (IOException ex) {
}
}
(2) 从FTP服务器上下传一个文件
void getButton_actionPerformed(ActionEvent e) {
String server = serverEdit.getText();
String user = userEdit.getText();
String password = passwordEdit.getText();
String path = pathEdit.getText();
String filename = filenameEdit.getText();
try {
FtpClient ftpClient = new FtpClient();
ftpClient.openServer(server);
ftpClient.login(user, password);
if (path.length() != 0)
ftpClient.cd(path);
ftpClient.binary();
TelnetInputStream is = ftpClient.get(filename);
File file_out = new File(filename);
FileOutputStream os = new FileOutputStream(file_out);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
}
is.close();
os.close();
ftpClient.closeServer();
} catch (IOException ex) {
}
}
(3) 向FTP服务器上上传一个文件
void putButton_actionPerformed(ActionEvent e) {
String server = serverEdit.getText();
String user = userEdit.getText();
String password = passwordEdit.getText();
String path = pathEdit.getText();
String filename = filenameEdit.getText();
try {
FtpClient ftpClient = new FtpClient();
ftpClient.openServer(server);
ftpClient.login(user, password);
if (path.length() != 0)
ftpClient.cd(path);
ftpClient.binary();
TelnetOutputStream os = ftpClient.put(filename);
File file_in = new File(filename);
FileInputStream is = new FileInputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
}
is.close();
os.close();
ftpClient.closeServer();
} catch (IOException ex) {
}
}
java中怎么实现ftp文件传输
package com.quantongfu.;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.util.List;
import org.apache.commons.net.FTPClient;
import org.apache.log4j.Logger;
import org.apache.log4j.net.SocketServer;
import com.quantongfu.conf.FtpConf;
/**
* @项目名称: telinSyslog
* @文件名称:
* @创建日期:2015年9月14日 下午3:22:08
* @功能描述:ftp实体类,用于连接,上传
* @修订记录:
*/
public class Ftp {
private static Logger logger = Logger.getLogger(Ftp.class);
private FTPClient ftp;
/**
*
* @param path 上传到ftp服务器哪个路径下
* @param addr 地址
* @param port 端口号
* @param username 用户名
* @param password 密码
* @return
* @throws Exception
*/
public boolean connect() throws Exception {
boolean result = false;
ftp = new FTPClient();
int reply;
ftp.connect(FtpConf.FTP_HOST, FtpConf.FTP_PORT);
ftp.login(FtpConf.FTP_USER_NAME, FtpConf.FTP_PASSWORD);
ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
ftp.enterLocalPassiveMode();
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
return result;
}
if (FtpConf.IS_FTP_DIRECTORY) {
ftp.changeWorkingDirectory(FtpConf.FTP_DIRECTORY);
}
result = true;
return result;
}
/**
*
* @param files 上传的文件
* @throws Exception
*/
public boolean upload(File file) throws IOException {
FileInputStream input = null;
try {
input = new FileInputStream(file);
boolean b = ftp.storeFile(file.getName() + ".tmp", input);
if (b) {
b = ftp.rename(file.getName() + ".tmp", file.getName());
}
return b;
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (input != null) {
input.close();
}
}
}
/**
*
* @param files 上传的文件
* @throws Exception
*/
public boolean upload(ServerSocket server, File file) throws Exception {
FileInputStream input = null;
try {
if (!file.exists()) {
return true;
}
input = new FileInputStream(file);
boolean b = ftp.storeFile(server, file.getName() + ".tmp", input);
if (b) {
b = ftp.rename(file.getName() + ".tmp", file.getName());
if (b) {
file.delete();
}
}
return b;
} catch (Exception e) {
logger.error("ftp error" + e.getMessage());
return false;
} finally {
if (input != null) {
try {
input.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/* 断开连接 */
public void disConnect() {
try {
if (ftp != null) {
ftp.disconnect();
}
} catch (IOException e) {
e.printStackTrace();
}
}
/* 获取连接 */
public static Ftp getFtp() {
Ftp ftp = new Ftp();
try {
ftp.connect();
} catch (Exception e) {
logger.error("FTP连接异常" + e.getMessage());
e.printStackTrace();
}
return ftp;
}
/* 重连 */
public Ftp reconnect() {
disConnect();
return getFtp();
}
}
使用 Apache FtpClient jar 包,获取 jar。