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java上传ftp代码,ftp文件上传java
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java FTP怎么上传文件
上传下载的代码
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import sun.net.TelnetOutputStream;
import sun.net.TelnetInputStream;
import sun.net.;
public class download {
String localfilename;
String remotefilename;
FtpClient ftpClient;
// server：服务器名字
// user：用户名
// password：密码
// path：服务器上的路径
public 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 void upload() {
this.localfilename = "D://test2//test.txt";
this.remotefilename = "test.txt";
try {
TelnetOutputStream os = ftpClient.put(this.remotefilename);
java.io.File file_in = new java.io.File(this.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 void download() {
try {
TelnetInputStream is = ftpClient.get(this.remotefilename);
java.io.File file_in = new java.io.File(this.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 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 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", "/callcenter/ip.txt",
"/callcenter/mainframe/image/processing_bar_2.gif",
"/callcenter/mainframe/image/logo_01.jpg" };
String localfilepath[] = { "C:\\FTP_Test\\index.jsp",
"C:\\FTP_Test\\ip.txt", "C:\\FTP_Test\\processing_bar_2.gif",
"C:\\FTP_Test\\logo_01.jpg" };
download fu = new download();
fu.connectServer("172.16.1.66",22, "web_test", "123456","/callcenter");
for(int i=0;ifilepath.length;i++){
fu.download(filepath[i],localfilepath[i]);
}
//fu.upload();
//fu.download();
fu.closeConnect();
}
}
相关问答
Q1: 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.;
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();
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;
(FtpConf.FTP_HOST, FtpConf.FTP_PORT);
(FtpConf.FTP_USER_NAME, FtpConf.FTP_PASSWORD);
;
;
reply = ;
if (!FTPReply.isPositiveCompletion(reply)) {
;
return result;
}
if (FtpConf.IS_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 = (file.getName() + ".tmp", input);
if (b) {
b = (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 = (server, file.getName() + ".tmp", input);
if (b) {
b = (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) {
;
}
} catch (IOException e) {
e.printStackTrace();
}
}
/*获取连接*/
public static Ftp getFtp() {
Ftp ftp = new Ftp();
try {
;
} 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 :
Q2: 如何用java代码实现ftp文件上传
import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.net.;
import org.apache.commons.net.;
public class test {
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
*/
private boolean connect(String path,String addr,int port,String username,String password) throws Exception {
boolean result = false;
ftp = new FTPClient();
int reply;
;
;
;
reply = ;
if (!FTPReply.isPositiveCompletion(reply)) {
;
return result;
}
;
result = true;
return result;
}
/**
*
* @param file 上传的文件或文件夹
* @throws Exception
*/
private void upload(File file) throws Exception{
if(file.isDirectory()){
(file.getName());
(file.getName());
String[] files = file.list();
for (int i = 0; i files.length; i++) {
File file1 = new File(file.getPath()+"\\"+files[i] );
if(file1.isDirectory()){
upload(file1);
;
}else{
File file2 = new File(file.getPath()+"\\"+files[i]);
Q3: java 实现ftp上传如何创建文件夹？
准备条件：java实现ftp上传用到了commons-net-3.3.jar包
首先建立ftphost连接
public boolean connect(String path, String addr, int port, String username, String password) {
try {
//FTPClient ftp = new FTPHTTPClient(addr, port, username, password);
ftp = new FTPClient();
int reply;
;
System.out.println("连接到：" + addr + ":" + port);
System.out.print();
reply = ;
if (!FTPReply.isPositiveCompletion(reply)) {
;
System.err.println("FTP目标服务器积极拒绝.");
System.exit(1);
return false;
}else{
(username, password);
;
;
;
System.out.println("已连接：" + addr + ":" + port);
return true;
}
} catch (Exception ex) {
ex.printStackTrace();
System.out.println(ex.getMessage());
return false;
}
}
然后再利用ftpclient的makeDirectory方法创建文件夹
public void createDir(String dirname){
try{
;
System.out.println("在目标服务器上成功建立了文件夹: " + dirname);
}catch(Exception ex){
System.out.println(ex.getMessage());
}
}
断开host连接
public void disconnect(){
try {
;
} catch (IOException e) {
e.printStackTrace();
}
}
最后是程序的调用方法
public static void main(String[] args) {
FtpUploadTest ftpupload = new FtpUploadTest();
if(ftpupload.connect("", "172.39.8.x", 20, "administrator", "abc@123")){
ftpupload.createDir("/UPLOAD");
ftpupload.disconnect();
}
}
