工具类：
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.RandomAccessFile;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import sun.net.TelnetInputStream;
import sun.net.TelnetOutputStream;
import sun.net.ftp.FtpClient;
import sun.net.ftp.FtpLoginException;
public class FtpUtil {
/**
* @param args
*/
public static void main(String[] args) {
FtpUtil ftp = new FtpUtil();
ftp.connect("10.16.12.75", 21, "ftpusr", "ftpusr");
try {
// 上传目录下文件 并可以递归到子目录
// ftp.upPathFile(new File("D:\\ALSC"), "ALSC/");
// 下载目录下多个文件 并可以递归到子目录
//ftp.downPathFile("/opt/ftp/outgoing/cs/", "D:/outgoing/csvc");
// 切换目录
ftp.setPath("/opt/ftp/book");
System.out.println(ftp.getDir());
for (String file : ftp.getFileNameList()) {
System.out.println(file);
}
// 切换到父级目录
ftp.up();
// 创建多目录
// ftp.createDir("aa/bb/cc");
ftp.setPath("ftpTest");
// 删除文件
ftp.deleteFile("bbb.bmp");
System.out.println(ftp.getDir());
for (String file : ftp.getFileNameList()) {
System.out.println(file);
}
// 上传 下载单个文件
ftp.uploadFile("c:/aaa.bmp", "bbb.bmp");
ftp.downloadFile("bbb.bmp", "c:/bbb");
List<String> list = ftp.getFileList();
for (String file : list) {
System.out.println(file);
}
ftp.setPath("/opt/ftp/outgoing/cs");
String patternStr = "^CSGET_[0-9]{4}_0085_"+"20120926"+"_[0-9]{3}";
// 过滤，获取目录下的文件列表
list = ftp.getFileList(new CSFilter(patternStr));
for (String file : list) {
System.out.println(file);
}
//下载 过滤后的文件
ftp.downPathFile("/opt/ftp/outgoing/cs/", "D:/outgoing/csvc",new CSFilter(patternStr));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ftp.close();
}
private FtpClient ftpClient = null;
/**
* 打开连接
*
* @param hostname
* @param port
* @param username
* @param passwd
* @return
*/
public void connect(String hostname, int port, String username,
String passwd) {
String msg = "";
try {
ftpClient = new FtpClient(hostname, port);
ftpClient.login(username, passwd);
ftpClient.binary();
msg = "连接成功！";
} catch (FtpLoginException e) {
msg = "登录主机失败，可能是用户名密码错误！";
e.printStackTrace();
} catch (IOException e) {
msg = "登录主机失败，请检验端品是否正确！";
e.printStackTrace();
} catch (SecurityException e) {
msg = "无权连接主机，主确认是否有权限连接主机！";
e.printStackTrace();
}
System.out.println(msg);
}
/**
* 关闭连接
*/
public void close() {
if (ftpClient == null) {
return;
}
try {
ftpClient.closeServer();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 重命名
*
* @param oldName
* @param newName
* @return
*/
public boolean renameFile(String oldName, String newName) {
boolean result = false;
try {
this.ftpClient.rename(oldName, newName);
result = true;
} 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.getDir() + path));
String filename = "";
while ((filename = dis.readLine()) != null) {
list.add(filename);
}
} catch (IOException e) {
e.printStackTrace();
}
return list;
}
/**
* 读取文件列表
*
* @return
* @throws IOException
*/
public List<String> getFileList() throws IOException {
List<String> fileList = new ArrayList<String>();
InputStreamReader isr = null;
BufferedReader br = null;
try {
isr = new InputStreamReader(this.ftpClient.list());
br = new BufferedReader(isr);
String fileName = "";
while (true) {
fileName = br.readLine();
if (fileName == null) {
break;
}
fileList.add(fileName);
}
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (isr != null) {
try {
isr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return fileList;
}
/**
* 读取文件列表
*
* @return
* @throws IOException
*/
public List<String> getFileList(FileFilter filter) throws IOException {
List<String> fileList = new ArrayList<String>();
InputStreamReader isr = null;
BufferedReader br = null;
try {
isr = new InputStreamReader(this.ftpClient.list());
br = new BufferedReader(isr);
String fileName = "";
while (true) {
fileName = br.readLine();
if (fileName == null) {
break;
}
if ((filter == null) || filter.accept(new File(fileName)))
fileList.add(fileName);
}
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (isr != null) {
try {
isr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return fileList;
}
/**
* 获取文件名列表
*
* @return
* @throws IOException
*/
public List<String> getFileNameList() throws IOException {
List<String> fileNameList = new ArrayList<String>();
InputStreamReader isr = null;
BufferedReader br = null;
try {
isr = new InputStreamReader(this.ftpClient.nameList(this.getDir()));
br = new BufferedReader(isr);
String fileName = "";
while (true) {
fileName = br.readLine();
if (fileName == null) {
break;
}
fileNameList.add(fileName);
}
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (isr != null) {
try {
isr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return fileNameList;
}
/**
* 设置路径 切换目录
*
* @param path
* @return
*/
public boolean setPath(String path) {
if (this.ftpClient != null) {
try {
ftpClient.cd(path);
return true;
} catch (IOException e) {
e.printStackTrace();
return false;
}
} else {
return false;
}
}
/**
* 判断是否为目录
*
* @param line
* @return
*/
public boolean isDir(String line) {
return line.startsWith("d");
}
/**
* 检查文件夹在当前目录下是否存在
*
* @param dir
* @return
*/
public boolean isDirExist(String dir) {
String pwd = "";
try {
pwd = ftpClient.pwd();
ftpClient.cd(dir);
ftpClient.cd(pwd);
} catch (Exception e) {
return false;
}
return true;
}
/**
* 获取当前路径
*
* @return
* @throws IOException
*/
public String getDir() throws IOException {
return this.ftpClient.pwd();
}
/**
* 向上 切换到父级目录
*
* @throws IOException
*/
public void up() throws IOException {
if ("/".equals(ftpClient.pwd()) || "//".equals(ftpClient.pwd())) {
return;
}
this.ftpClient.cdUp();
}
/**
* 删除文件
*
* @param fileName
* @return
*/
public void deleteFile(String fileName) {
ftpClient.sendServer("dele " + fileName + "\r\n");// 这个地方一定要注意 加上 \r\n
try {
if (ftpClient.readServerResponse() != 250)
System.out.println("删除异常");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 在当前目录下创建文件夹
*
* @param dir
* @return
* @throws Exception
*/
public 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;
}
}
/**
* 上传文件
*
* @param localFile
* @param targetFileName
* @return
*/
public boolean uploadFile(String localFile, String targetFileName) {
boolean result = false;
if (this.ftpClient == null) {
return false;
}
TelnetOutputStream tos = null;
RandomAccessFile sendFile = null;
DataOutputStream dos = null;
try {
File file = new File(localFile);
sendFile = new RandomAccessFile(file, "r");
sendFile.seek(0);
tos = this.ftpClient.put(targetFileName);
dos = new DataOutputStream(tos);
int ch = 0;
while (sendFile.getFilePointer() < sendFile.length()) {
ch = sendFile.read();
dos.write(ch);
}
result = true;
} catch (Exception ex) {
result = false;
} finally {
if (tos != null) {
try {
tos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (sendFile != null) {
try {
sendFile.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
/**
* 上传文件
*
* @param localFile
* @param targetFileName
* @return
*/
public boolean uploadFile(File localFile, String targetFileName) {
boolean result = false;
if (this.ftpClient == null) {
return false;
}
TelnetOutputStream tos = null;
RandomAccessFile sendFile = null;
DataOutputStream dos = null;
try {
sendFile = new RandomAccessFile(localFile, "r");
sendFile.seek(0);
tos = this.ftpClient.put(targetFileName);
dos = new DataOutputStream(tos);
int ch = 0;
while (sendFile.getFilePointer() < sendFile.length()) {
ch = sendFile.read();
dos.write(ch);
}
result = true;
} catch (Exception ex) {
result = false;
} finally {
if (tos != null) {
try {
tos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (sendFile != null) {
try {
sendFile.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
/**
* 上传本地目录下的所有文件到服务器上
*
* @param srcPath
* @param tagPath
* @param level
* 递归的级别
* @return
* @see [类、类#方法、类#成员]
*/
public boolean upPathFile(File srcPathFile, String tagPath) {
buildList(tagPath.substring(0, tagPath.lastIndexOf("/")));
boolean result = true;
try {
File temp[] = srcPathFile.listFiles();
for (int i = 0; i < temp.length; i++) {
if (temp[i].isDirectory()) {
if (tagPath.lastIndexOf('/') > 0) {
result = upPathFile(temp[i], tagPath
+ temp[i].getName() + "/");
} else {
result = upPathFile(temp[i], tagPath + "/"
+ temp[i].getName() + "/");
}
} else {
if (tagPath.lastIndexOf('/') > 0) {
result = uploadFile(temp[i], tagPath
+ temp[i].getName());
} else {
result = uploadFile(temp[i], tagPath + "/"
+ temp[i].getName());
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 下载文件
*
* @param srcFileName
* @param targetFileName
* @return
*/
public boolean downloadFile(String srcFileName, String targetFileName) {
if (this.ftpClient == null) {
return false;
}
TelnetInputStream tis = null;
RandomAccessFile getFile = null;
boolean result = true;
try {
File file = new File(targetFileName);
getFile = new RandomAccessFile(file, "rw");
getFile.seek(0);
tis = this.ftpClient.get(srcFileName);
DataInputStream dis = new DataInputStream(tis);
int ch = 0;
while (true) {
ch = dis.read();
if (ch < 0) {
break;
}
getFile.write(ch);
}
getFile.close();
} catch (IOException e) {
result = false;
} finally {
if (getFile != null) {
try {
getFile.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (tis != null) {
try {
tis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
/**
* 下载文件
*
* @param srcFileName
* @param targetFileName
* @return
*/
public boolean downloadFile(String srcFileName, File targetFileName) {
if (this.ftpClient == null) {
return false;
}
TelnetInputStream tis = null;
RandomAccessFile getFile = null;
boolean result = true;
try {
getFile = new RandomAccessFile(targetFileName, "rw");
getFile.seek(0);
tis = this.ftpClient.get(srcFileName);
DataInputStream dis = new DataInputStream(tis);
int ch = 0;
while (true) {
ch = dis.read();
if (ch < 0) {
break;
}
getFile.write(ch);
}
getFile.close();
} catch (IOException e) {
result = false;
} finally {
if (getFile != null) {
try {
getFile.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (tis != null) {
try {
tis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
/**
* 下载远程目录下的所有文件到本地
*
* @param srcPathFile
* 远程目录文件
* @param tagPath
* 本地存放目录
* @return
* @throws IOException
* @see [类、类#方法、类#成员]
*/
public boolean downPathFile(String srcPath, String tagPath)
throws IOException {
boolean result = true;
File tagFile = new File(tagPath);
tagFile.mkdirs();
setPath(srcPath);
String tempPath = "";
List<String> list = getFileList();
for (int i = 0; i < list.size(); i++) {
String currPath = list.get(i);
String fileName = getFileName(currPath);
String currPathFul = getDir() + "/" + fileName;
if (tagPath.lastIndexOf('/') > 0) {
tempPath = tagPath
+ currPathFul.substring(currPathFul.lastIndexOf("/"),
currPathFul.length());
} else {
tempPath = tagPath
+ "/"
+ currPathFul.substring(currPathFul.lastIndexOf("/"),
currPathFul.length());
}
if (isDir(currPath)) {
srcPath = currPathFul + "/";
downPathFile(srcPath, tempPath);
} else {
srcPath = currPathFul;
downloadFile(srcPath, tempPath);
}
}
return result;
}
/**
* 下载远程目录下的所有文件到本地，过滤规则
*
* @param srcPathFile
* 远程目录文件
* @param tagPath
* 本地存放目录
* @param fileFilter
* 下载过滤文件
* @return
* @throws IOException
* @see [类、类#方法、类#成员]
*/
public boolean downPathFile(String srcPath, String tagPath,
FileFilter fileFilter) throws IOException {
boolean result = true;
File tagFile = new File(tagPath);
tagFile.mkdirs();
setPath(srcPath);
String tempPath = "";
List<String> list = getFileList(fileFilter);
for (int i = 0; i < list.size(); i++) {
String currPath = list.get(i);
String fileName = getFileName(currPath);
String currPathFul = getDir() + "/" + fileName;
if (tagPath.lastIndexOf('/') > 0) {
tempPath = tagPath
+ currPathFul.substring(currPathFul.lastIndexOf("/"),
currPathFul.length());
} else {
tempPath = tagPath
+ "/"
+ currPathFul.substring(currPathFul.lastIndexOf("/"),
currPathFul.length());
}
if (isDir(currPath)) {
srcPath = currPathFul + "/";
downPathFile(srcPath, tempPath, fileFilter);
} else {
srcPath = currPathFul;
downloadFile(srcPath, tempPath);
}
}
return result;
}
public String getFileName(String line) {
int i;
String filename = (String) parseLine(line).get(8);
for (i = 9; i < parseLine(line).size(); i++) {
filename = filename + " " + ((String) parseLine(line).get(i));
}
return filename;
}
// 处理getFileList取得的行信息
private ArrayList parseLine(String line) {
ArrayList s1 = new ArrayList();
StringTokenizer st = new StringTokenizer(line, " ");
while (st.hasMoreTokens()) {
s1.add(st.nextToken());
}
return s1;
}
/**
* 从FTP文件服务器上下载文件SourceFileName，到本地destinationFileName 所有的文件名中都要求包括完整的路径名在内
*
* @param SourceFileName
* String
* @param destinationFileName
* String
* @throws Exception
*/
public void downFile(String SourceFileName, String destinationFileName)
throws Exception {
ftpClient.binary(); // 一定要使用二进制模式
TelnetInputStream ftpIn = ftpClient.get(SourceFileName);
byte[] buf = new byte[204800];
int bufsize = 0;
FileOutputStream ftpOut = new FileOutputStream(destinationFileName);
while ((bufsize = ftpIn.read(buf, 0, buf.length)) != -1) {
ftpOut.write(buf, 0, bufsize);
}
ftpOut.close();
ftpIn.close();
}
/**
* 从FTP文件服务器上下载文件，输出到字节数组中
*
* @param SourceFileName
* String
* @return byte[]
* @throws Exception
*/
public byte[] downFile(String SourceFileName) throws Exception {
ftpClient.binary(); // 一定要使用二进制模式
TelnetInputStream ftpIn = ftpClient.get(SourceFileName);
ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
byte[] buf = new byte[204800];
int bufsize = 0;
while ((bufsize = ftpIn.read(buf, 0, buf.length)) != -1) {
byteOut.write(buf, 0, bufsize);
}
byte[] return_arraybyte = byteOut.toByteArray();
byteOut.close();
ftpIn.close();
return return_arraybyte;
}
/**
* 上传文件到FTP服务器,destination路径以FTP服务器的"/"开始，带文件名、 上传文件只能使用二进制模式，
* 当文件存在时再次上传则会覆盖
*
* @param source
* String
* @param destination
* String
* @throws Exception
*/
public void upFile(String source, String destination) throws Exception {
buildList(destination.substring(0, destination.lastIndexOf("/")));
ftpClient.binary(); // 此行代码必须放在buildList之后
TelnetOutputStream ftpOut = ftpClient.put(destination);
TelnetInputStream ftpIn = new TelnetInputStream(new FileInputStream(
source), true);
byte[] buf = new byte[204800];
int bufsize = 0;
while ((bufsize = ftpIn.read(buf, 0, buf.length)) != -1) {
ftpOut.write(buf, 0, bufsize);
}
ftpIn.close();
ftpOut.close();
}
/**
* JSP中的流上传到FTP服务器, 上传文件只能使用二进制模式，当文件存在时再次上传则会覆盖 字节数组做为文件的输入流,
* 此方法适用于JSP中通过request输入流来直接上传文件在RequestUpload类中调用了此方法，
* destination路径以FTP服务器的"/"开始，带文件名
*
* @param sourceData
* byte[]
* @param destination
* String
* @throws Exception
*/
public void upFile(byte[] sourceData, String destination) throws Exception {
buildList(destination.substring(0, destination.lastIndexOf("/")));
ftpClient.binary(); // 此行代码必须放在buildList之后
TelnetOutputStream ftpOut = ftpClient.put(destination);
ftpOut.write(sourceData, 0, sourceData.length);
// ftpOut.flush();
ftpOut.close();
}
/**
* 在FTP服务器上建立指定的目录,当目录已经存在的情下不会影响目录下的文件,这样用以判断FTP
* 上传文件时保证目录的存在目录格式必须以"/"根目录开头
*
* @param pathList
* String
* @throws Exception
*/
public void buildList(String pathList) {
try {
ftpClient.ascii();
StringTokenizer s = new StringTokenizer(pathList, "/"); // sign
int count = s.countTokens();
String pathName = "";
while (s.hasMoreElements()) {
pathName = pathName + (String) s.nextElement();
try {
ftpClient.sendServer("XMKD " + pathName + "\r\n");
} catch (Exception e) {
e = null;
}
int reply = ftpClient.readServerResponse();
pathName = pathName + "/";
}
ftpClient.binary();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
过滤：
import java.io.File;
import java.io.FileFilter;
import java.util.ArrayList;
import java.util.StringTokenizer;
import java.util.regex.Pattern;
public class CSFilter implements FileFilter {
private String patternStr ;
//"^CSGET_[0-9]{4}_0085_"+"20120926"+"_[0-9]{3}"
private Pattern pattern ;
public CSVCFilter(String str){
this.patternStr = str;
this.pattern = Pattern.compile(patternStr);
}
public boolean accept(File pathname) {
String strName = pathname.getName();
if (!isDir(strName)) {
strName = getFileName(strName);
System.out.println(strName);
return pattern.matcher(strName).matches();
}
return true;
}
public boolean isDir(String strName) {
return ((String) parseLine(strName).get(0)).indexOf("d") != -1;
}
public String getFileName(String line) {
int i;
String filename = (String) parseLine(line).get(8);
for (i = 9; i < parseLine(line).size(); i++) {
filename = filename + " " + ((String) parseLine(line).get(i));
}
return filename;
}
// 处理getFileList取得的行信息
private ArrayList parseLine(String line) {
ArrayList s1 = new ArrayList();
StringTokenizer st = new StringTokenizer(line, " ");
while (st.hasMoreTokens()) {
s1.add(st.nextToken());
}
return s1;
}
public String getFileSize(String line) {
return (String) parseLine(line).get(4);
}
public String getFileDate(String line) {
ArrayList a = parseLine(line);
return (String) a.get(5) + " " + (String) a.get(6) + " "
+ (String) a.get(7);
}
}
下载速度提升
public boolean downloadFile(String srcFileName, File targetFileName)
{
//.....
//下载速度太慢，用如下方式进行提升
byte[] recvbuf = new byte[1024];
while((ch = dis.read(recvbuf)) > 0){
getFile.write(recvbuf,0,ch);
}
// while (true) {
// ch = dis.read();
// if (ch < 0) {
// break;
// }
// getFile.write(ch);
// }
//...
}
