java ftp操作

package com.intcache.god.util;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import sun.net.TelnetInputStream;
import sun.net.TelnetOutputStream;
import sun.net.ftp.FtpClient;

public class FtpUtil {
static String localfilename;

static String remotefilename;

static FtpClient ftpClient;

// server：服务器名字
// user：用户名
// password：密码
// path：服务器上的路径
public static void connectServer(String ip, int port, String user, String password, String path) {

try {
ftpClient = new FtpClient();
ftpClient.openServer(ip, port);
ftpClient.login(user, password);
System.out.println("login success!");
if (path.length() != 0)
ftpClient.cd(path);
ftpClient.binary();
} catch (IOException ex) {
System.out.println("not login");
System.out.println(ex);
}
}

public void closeConnect() {
try {
ftpClient.closeServer();
System.out.println("disconnect success");
} catch (IOException ex) {
System.out.println("not disconnect");
System.out.println(ex);
}
}

public static void upload() {

localfilename = "F:\\QQPCmgr\\Desktop\\index.txt";
remotefilename = "index.txt";

try {
TelnetOutputStream os = ftpClient.put(remotefilename);
java.io.File file_in = new java.io.File(localfilename);
FileInputStream is = new FileInputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
os.write(bytes, 0, c);
}
System.out.println("upload success");
is.close();
os.close();
} catch (IOException ex) {
System.out.println("not upload");
System.out.println(ex);
}
}

public static void download() {

try {
TelnetInputStream is = ftpClient.get(remotefilename);
java.io.File file_in = new java.io.File(localfilename);
FileOutputStream os = new FileOutputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
// System.out.println((char)is.read());
// System.out.println(file_in);
os.write(bytes, 0, c);
}

System.out.println("download success");
os.close();
is.close();
} catch (IOException ex) {
System.out.println("not download");
System.out.println(ex);
}
}

public static void download(String remotePath, String remoteFile, String localFile) {

try {
if (remotePath.length() != 0)
ftpClient.cd(remotePath);
TelnetInputStream is = ftpClient.get(remoteFile);
java.io.File file_in = new java.io.File(localFile);
FileOutputStream os = new FileOutputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
// System.out.println((char)is.read());
// System.out.println(file_in);
os.write(bytes, 0, c);
}

System.out.println("download success");
os.close();
is.close();
} catch (IOException ex) {
System.out.println("not download");
System.out.println(ex);
}
}

public static void download(String remoteFile, String localFile) {

try {
TelnetInputStream is = ftpClient.get(remoteFile);
java.io.File file_in = new java.io.File(localFile);
FileOutputStream os = new FileOutputStream(file_in);
byte[] bytes = new byte[1024];
int c;
while ((c = is.read(bytes)) != -1) {
// System.out.println((char)is.read());
// System.out.println(file_in);
os.write(bytes, 0, c);
}

System.out.println("download success");
os.close();
is.close();
} catch (IOException ex) {
System.out.println("not download");
System.out.println(ex);
}
}

public static void main(String agrs[]) {

String filepath[] = { "\\callcenter\\index.jsp" };
String localfilepath[] = { "F:\\QQPCmgr\\Desktop\\index.txt" };

FtpUtil fu = new FtpUtil();
fu.connectServer("10.10.110.56", 21, "wk", "wk", "/callcenter");
for (int i = 0; i < filepath.length; i++) {
//			fu.download(filepath[i], localfilepath[i]);
}

fu.upload();
//fu.download();
fu.closeConnect();

}
}