用apache包:package com.test.project.ftp;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.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.commons.net.PrintCommandListener; import org.apache.commons.net.ftp.FTP; import org.apache.commons.net.ftp.FTPClient; import org.apache.commons.net.ftp.FTPFile; import org.apache.commons.net.ftp.FTPReply;/** * 支持断点续传的FTP实用类 实现基本断点上传下载,支持上传下载进度 * * @author guishuanglin 2009-04-2 */ public class MyFTPClient { private Log logger = LogFactory.getLog(this.getClass()); private String fileSplit = "/"; private FTPClient ftpClient = new FTPClient(); public MyFTPClient() { // 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, String charEncoding) throws IOException { ftpClient.connect(hostname, port); ftpClient.setControlEncoding(charEncoding); 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. * @param fileName 文件名,如:file.txt * @param localPath 本地文件路径 * 使用/home/der/dir或是 * http://www.baidu.com/dir * @param remotePath 远程文件路径,不包括文件名 * @return * @throws IOException */ public boolean download(String fileName, String localDir, String remoteDir) throws IOException { String localFile = localDir + this.fileSplit + fileName; String remoteFile = remoteDir + this.fileSplit + fileName; // 设置被动模式 ftpClient.enterLocalPassiveMode(); // 设置以二进制方式传输 ftpClient.setFileType(FTP.BINARY_FILE_TYPE); // 检查远程文件是否存在 FTPFile[] files = ftpClient.listFiles(remoteFile); if (files.length < 1) { logger.error("远程文件不存在"); return false; } long remoteSize = files[0].getSize(); File f = new File(localFile); // 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 >= remoteSize) { logger.error("本地文件大于远程文件,下载中止"); return true; } // 进行断点续传,并记录状态 FileOutputStream out = new FileOutputStream(f, true); ftpClient.setRestartOffset(localSize); InputStream in = ftpClient.retrieveFileStream(remoteFile); logger.info("下载文件开始"); boolean result = this.downloadFile(in, remoteSize, out, localSize, ftpClient); if (result) { logger.info("下载文件完成"); return true; } else { logger.error("下载文件失败"); return false; } } else { OutputStream out = new FileOutputStream(f); InputStream in = ftpClient.retrieveFileStream(remoteFile); logger.info("下载文件开始"); boolean result = this.downloadFile(in, remoteSize, out, 0, ftpClient); if (result) { logger.info("下载文件完成"); return true; } else { logger.error("下载文件失败"); return false; } } } private boolean downloadFile(InputStream in, long inSize, OutputStream out, long outSize, FTPClient ftpClient) throws IOException { long step = inSize / 100; long process = 0; long readbytes = 0L; //防止除0错误 if(step==0) step = 1; // 断点续传 if (outSize > 0) { System.out.println("文件存在,可进行断点续传."); ftpClient.setRestartOffset(outSize); process = outSize / step; readbytes = outSize; } byte[] bytes = new byte[1024]; int c; while ((c = in.read(bytes)) != -1) { out.write(bytes, 0, c); readbytes += c; long nowProcess = readbytes / step; if (nowProcess > process) { process = nowProcess; if (process > 0 && process % 10 == 0) { if (process == 100) { System.out.println(process + "%"); System.out.println("完成进度:" + process + "%"); } else System.out.print(process + "%"); } else { System.out.print("."); } } } in.close(); out.close(); return ftpClient.completePendingCommand(); } /** * 上传文件到FTP服务器,支持断点续传 * @param fileName 文件名,如:file.txt * @param localPath 本地文件路径 * 使用/home/der/dir或是 * http://www.baidu.com/dir * @param remotePath 远程文件路径,不包括文件名 * @return * @throws IOException */ public boolean upload(String fileName, String localDir, String remoteDir) throws IOException { String localFile = localDir + this.fileSplit + fileName; String remoteFile = remoteDir + this.fileSplit + fileName; // 设置PassiveMode传输 ftpClient.enterLocalPassiveMode(); // 设置以二进制流的方式传输 ftpClient.setFileType(FTP.BINARY_FILE_TYPE); // 检查远程是否存在文件 FTPFile[] files = ftpClient.listFiles(remoteFile); if (files.length >= 1) { long remoteSize = files[0].getSize(); File f = new File(localFile); long localSize = f.length(); if (remoteSize == localSize) { logger.info("远程文件已存在,上载完成"); return true; } else if (remoteSize > localSize) { logger.error("远程文件大于本地文件,上载完成"); return true; } // 尝试移动文件内读取指针,实现断点续传 boolean result = uploadFile(remoteFile, 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) { if (ftpClient.deleteFile(remoteFile)) { logger.error("远程文件存在,续传失败,已删除文件重转"); return uploadFile(remoteFile, f, ftpClient, 0); } else { logger.error("远程文件存在,续传失败,删除文件进行重转,但删除失败."); return false; } } else { return result; } } else { return uploadFile(remoteFile, new File(localFile), ftpClient, 0); } } /** * 上传文件到服务器,新上传和断点续传 * * @param remotePath * 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 localPath * 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 */ private boolean uploadFile(String remotePath, File localPath, FTPClient ftpClient, long remoteSize) throws IOException { // 显示进度的上传 long step = localPath.length() / 100; long process = 0; long localreadbytes = 0L; RandomAccessFile raf = new RandomAccessFile(localPath, "r"); OutputStream out = ftpClient.appendFileStream(remotePath); //防止除0错误 if(step==0) step = 1; // 断点续传 if (remoteSize > 0) { System.out.println("文件存在,可进行断点续传."); 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; if (process > 0 && process % 10 == 0) { if (process == 100) { System.out.println(process + "%"); System.out.println(" 上传进度:" + process + "%"); } else System.out.print(process + "%"); } else { System.out.print("."); } } } out.flush(); raf.close(); out.close(); boolean result = ftpClient.completePendingCommand(); if (result) { logger.info("上传文件完成"); return true; } else { logger.error("上传文件失败"); return false; } } /** * 断开与远程服务器的连接 * * @throws IOException */ public void disconnect() throws IOException { if (ftpClient.isConnected()) { ftpClient.disconnect(); } } /** 文件重名称,移动目录,根据目录用'/'代替 */ public boolean rename(String from, String to){ try { return ftpClient.rename(from, to); } catch (IOException e) { e.printStackTrace(); return false; } } public static void main(String[] args) { MyFTPClient myFtp = new MyFTPClient(); try { // } catch (IOException e) { System.out.println("连接FTP出错:" + e.getMessage()); } } }
上面是ftp,其它方法也有很多.
2014-01-03 星期五 16:01 ftp> ftp> open 192.168.1.163 Not connected.ftp> user Administrator 111 Not connected.ftp> bin Interactive mode Off .ftp> prompt Not connected.ftp> cd C:\Documents and Settings\Administrator\桌面 Local directory now C:\Inetpub\ftproot\web\image.ftp> lcd C:\Inetpub\ftproot\web\image Not connected.ftp> mget * Not connected.ftp> mdelete * bye 报错的原因是什么
监控进程用core java里的Thread类或Runnable接口实现,如果是FTP服务器用commons-net或jsch里的API,如果是SFTP服务器就用jsch。
你不会是在找人要现成的源代码吗
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.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.net.PrintCommandListener;
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPReply;/**
* 支持断点续传的FTP实用类 实现基本断点上传下载,支持上传下载进度
*
* @author guishuanglin 2009-04-2
*/
public class MyFTPClient {
private Log logger = LogFactory.getLog(this.getClass());
private String fileSplit = "/";
private FTPClient ftpClient = new FTPClient(); public MyFTPClient() {
// 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, String charEncoding) throws IOException {
ftpClient.connect(hostname, port);
ftpClient.setControlEncoding(charEncoding);
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.
* @param fileName 文件名,如:file.txt
* @param localPath 本地文件路径
* 使用/home/der/dir或是
* http://www.baidu.com/dir
* @param remotePath 远程文件路径,不包括文件名
* @return
* @throws IOException
*/
public boolean download(String fileName, String localDir, String remoteDir)
throws IOException {
String localFile = localDir + this.fileSplit + fileName;
String remoteFile = remoteDir + this.fileSplit + fileName;
// 设置被动模式
ftpClient.enterLocalPassiveMode();
// 设置以二进制方式传输
ftpClient.setFileType(FTP.BINARY_FILE_TYPE); // 检查远程文件是否存在
FTPFile[] files = ftpClient.listFiles(remoteFile);
if (files.length < 1) {
logger.error("远程文件不存在");
return false;
}
long remoteSize = files[0].getSize();
File f = new File(localFile);
// 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 >= remoteSize) {
logger.error("本地文件大于远程文件,下载中止");
return true;
}
// 进行断点续传,并记录状态
FileOutputStream out = new FileOutputStream(f, true);
ftpClient.setRestartOffset(localSize);
InputStream in = ftpClient.retrieveFileStream(remoteFile); logger.info("下载文件开始");
boolean result = this.downloadFile(in, remoteSize, out, localSize,
ftpClient);
if (result) {
logger.info("下载文件完成");
return true;
} else {
logger.error("下载文件失败");
return false;
}
} else {
OutputStream out = new FileOutputStream(f);
InputStream in = ftpClient.retrieveFileStream(remoteFile); logger.info("下载文件开始");
boolean result = this.downloadFile(in, remoteSize, out, 0,
ftpClient);
if (result) {
logger.info("下载文件完成");
return true;
} else {
logger.error("下载文件失败");
return false;
}
}
} private boolean downloadFile(InputStream in, long inSize, OutputStream out,
long outSize, FTPClient ftpClient) throws IOException {
long step = inSize / 100;
long process = 0;
long readbytes = 0L;
//防止除0错误
if(step==0)
step = 1;
// 断点续传
if (outSize > 0) {
System.out.println("文件存在,可进行断点续传.");
ftpClient.setRestartOffset(outSize);
process = outSize / step;
readbytes = outSize;
}
byte[] bytes = new byte[1024];
int c;
while ((c = in.read(bytes)) != -1) {
out.write(bytes, 0, c);
readbytes += c;
long nowProcess = readbytes / step;
if (nowProcess > process) {
process = nowProcess;
if (process > 0 && process % 10 == 0) {
if (process == 100) {
System.out.println(process + "%");
System.out.println("完成进度:" + process + "%");
} else
System.out.print(process + "%");
} else {
System.out.print(".");
}
}
}
in.close();
out.close();
return ftpClient.completePendingCommand();
} /**
* 上传文件到FTP服务器,支持断点续传
* @param fileName 文件名,如:file.txt
* @param localPath 本地文件路径
* 使用/home/der/dir或是
* http://www.baidu.com/dir
* @param remotePath 远程文件路径,不包括文件名
* @return
* @throws IOException
*/
public boolean upload(String fileName, String localDir, String remoteDir)
throws IOException {
String localFile = localDir + this.fileSplit + fileName;
String remoteFile = remoteDir + this.fileSplit + fileName;
// 设置PassiveMode传输
ftpClient.enterLocalPassiveMode();
// 设置以二进制流的方式传输
ftpClient.setFileType(FTP.BINARY_FILE_TYPE); // 检查远程是否存在文件
FTPFile[] files = ftpClient.listFiles(remoteFile);
if (files.length >= 1) {
long remoteSize = files[0].getSize();
File f = new File(localFile);
long localSize = f.length();
if (remoteSize == localSize) {
logger.info("远程文件已存在,上载完成");
return true;
} else if (remoteSize > localSize) {
logger.error("远程文件大于本地文件,上载完成");
return true;
}
// 尝试移动文件内读取指针,实现断点续传
boolean result = uploadFile(remoteFile, 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) {
if (ftpClient.deleteFile(remoteFile)) {
logger.error("远程文件存在,续传失败,已删除文件重转");
return uploadFile(remoteFile, f, ftpClient, 0);
} else {
logger.error("远程文件存在,续传失败,删除文件进行重转,但删除失败.");
return false;
}
} else {
return result; }
} else {
return uploadFile(remoteFile, new File(localFile), ftpClient, 0);
}
} /**
* 上传文件到服务器,新上传和断点续传
*
* @param remotePath
* 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 localPath
* 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
*/
private boolean uploadFile(String remotePath, File localPath,
FTPClient ftpClient, long remoteSize) throws IOException {
// 显示进度的上传
long step = localPath.length() / 100;
long process = 0;
long localreadbytes = 0L;
RandomAccessFile raf = new RandomAccessFile(localPath, "r");
OutputStream out = ftpClient.appendFileStream(remotePath);
//防止除0错误
if(step==0)
step = 1;
// 断点续传
if (remoteSize > 0) {
System.out.println("文件存在,可进行断点续传.");
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;
if (process > 0 && process % 10 == 0) {
if (process == 100) {
System.out.println(process + "%");
System.out.println(" 上传进度:" + process + "%");
} else
System.out.print(process + "%");
} else {
System.out.print(".");
}
}
}
out.flush();
raf.close();
out.close();
boolean result = ftpClient.completePendingCommand();
if (result) {
logger.info("上传文件完成");
return true;
} else {
logger.error("上传文件失败");
return false;
}
}
/**
* 断开与远程服务器的连接
*
* @throws IOException
*/
public void disconnect() throws IOException {
if (ftpClient.isConnected()) {
ftpClient.disconnect();
}
} /** 文件重名称,移动目录,根据目录用'/'代替 */
public boolean rename(String from, String to){
try {
return ftpClient.rename(from, to);
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
public static void main(String[] args) {
MyFTPClient myFtp = new MyFTPClient();
try {
//
} catch (IOException e) {
System.out.println("连接FTP出错:" + e.getMessage());
}
}
}
16:01
ftp> ftp> open 192.168.1.163
Not connected.ftp> user Administrator 111
Not connected.ftp> bin
Interactive mode Off .ftp> prompt
Not connected.ftp> cd C:\Documents and Settings\Administrator\桌面
Local directory now C:\Inetpub\ftproot\web\image.ftp> lcd C:\Inetpub\ftproot\web\image
Not connected.ftp> mget *
Not connected.ftp> mdelete *
bye
报错的原因是什么