java做个FTP下载 从根目录开始把所有的下载都本地怎么做啊 本人新手
java做个FTP 下载从根目录开始把所有文件和文件夹下载都本地怎么做啊 请求高手 有源码最好 因为没得接触过ftp这个块
[解决办法]
/**
*
*/
package ftp;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
//import org.apache.commons.logging.Log;
//import org.apache.commons.logging.LogFactory;
import sun.net.TelnetInputStream;
import sun.net.TelnetOutputStream;
import sun.net.ftp.FtpClient;
public class FtpUpfile {
private FtpClient ftpclient;
private String ipAddress;
private int ipPort;
private String userName;
private String PassWord;
public FtpUpfile(String ip, int port, String username, String password) throws Exception {
ipAddress = new String(ip);
ipPort = port;
ftpclient = new FtpClient(ipAddress, ipPort);
userName = new String(username);
PassWord = new String(password);
}
public FtpUpfile(String ip, String username, String password) throws Exception {
ipAddress = new String(ip);
ipPort = 21;
ftpclient = new FtpClient(ipAddress, ipPort);
userName = new String(username);
PassWord = new String(password);
}
public void login() throws Exception {
ftpclient.login(userName, PassWord);
}
public void logout() throws IOException {
// 用ftpclient.closeServer()断开FTP出错时用下更语句退出
//ftpclient.sendServer("QUIT\r\n");
ftpclient.closeServer();
//int reply = ftpclient.readServerResponse(); // 取得服务器的返回信息
}
public void buildList(String pathList) throws IOException {
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();
}
ftpclient.binary();
}
public ArrayList fileNames(String fullPath) throws IOException {
ftpclient.ascii(); // 注意，使用字符模式
TelnetInputStream list = ftpclient.nameList(fullPath);
byte[] names = new byte[2048];
int bufsize = 0;
bufsize = list.read(names, 0, names.length); // 从流中读取
list.close();
ArrayList namesList = new ArrayList();
int i = 0;
int j = 0;
while (i < bufsize /* names.length */) {
// char bc = (char) names;
// System.out.println(i + " " + bc + " : " + (int) names);
// i = i + 1;
if (names[i] == 10) { // 字符模式为10，二进制模式为13
// 文件名在数据中开始下标为j,i-j为文件名的长度,文件名在数据中的结束下标为i-1
// System.out.write(names, j, i - j);
// System.out.println(j + " " + i + " " + (i - j));
String tempName = new String(names, j, i - j);
namesList.add(tempName);
// System.out.println(temp);
// 处理代码处
// j = i + 2; //上一次位置二进制模式
j = i + 1; // 上一次位置字符模式
}
i = i + 1;
}
return namesList;
}
public void upFile(String source, String destination) throws IOException {
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();
}
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();
}
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();
}
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;
}
public void delFilesFromFTP (String file) {
ftpclient.sendServer("DELE " + file + "\r\n");
}
public void sendCommand(String path){
try {
ftpclient.cd(path);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
String ip = "10.14.1.23";
int port = 21;
String userName = "1104";
String password = "1104";
String destinationFile = "C:/ftpDownFile/";
FtpUpfile fUp = new FtpUpfile(ip, port, userName, password);
fUp.login();
String remoteRoot = "f://ywcbb";
fUp.sendCommand(remoteRoot);
List fileList = fUp.fileNames(remoteRoot);
for (int i = 0; i < fileList.size(); i++) {
String fileName = fileList.get(i).toString();
System.out.println(fileName);
String tempFile = destinationFile + fileName;
fUp.downFile(fileName, tempFile);
}
fUp.logout();
}
}
