公司用到得到了sptp上傳 寫完後 記下來 方便下次使用
有上傳 下載 支持多文件上傳 不過不知道通過spring 的 MultipartFile 如何得到上傳文件的絕對路徑 就自己在項目上建立了個 upload文件夾 用來將上傳的代碼存到裏面
在從本地服務器存到ftp服務器上 
有點low 不過還是用得上的
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.Vector;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.ChannelSftp.LsEntry;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
public class FtpUtil {
// private static final Logger LOG = LoggerFactory.getLogger(FtpUtil.class);
/**
*
* getConnect(獲取sftp連接)<br/>
*
* @param host
* IpAddress
* @param port
* 端口
* @param username
* 登錄名
* @param password
* 登錄密碼
* @throws SysException
* @return ChannelSftp
*/
public static ChannelSftp getConnect(String host, int port, String username, String password) throws Exception {
try {
JSch jsch = new JSch();
Session sshSession = jsch.getSession(username, host, port);
sshSession.setPassword(password);
Properties sshConfig = new Properties();
sshConfig.put("StrictHostKeyChecking", "no");
sshSession.setConfig(sshConfig);
sshSession.connect();
Channel channel = sshSession.openChannel("sftp");
channel.connect();
return (ChannelSftp) channel;
} catch (JSchException e) {
throw new Exception("連接sftp失敗");
}
}
@SuppressWarnings("unused")
private static void closeChannel(Channel channel) {
if (channel != null) {
if (channel.isConnected()) {
channel.disconnect();
}
}
}
@SuppressWarnings("unused")
private static void closeSession(Session session) {
if (session != null) {
if (session.isConnected()) {
session.disconnect();
}
}
}
/**
* 文件下載
*
* @param directory
* @param downloadFile
* @param saveFile
* @param sftp
*/
public static void download(String directory, String downloadFile, String saveFile, ChannelSftp sftp) {
try {
sftp.cd(directory);
File file = new File(saveFile);
sftp.get(downloadFile, new FileOutputStream(file));
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 上傳單個文件
*
* @param directory
* 上傳的目錄
* @param uploadFile
* 要上傳的文件
*
* @throws Exception
*/
@SuppressWarnings("rawtypes")
public static void upload(String directory, String pathName, ChannelSftp sftp) throws Exception {
Vector content = sftp.ls(directory);
if (content == null) {
sftp.mkdir(directory);
}
File file = new File(pathName);
sftp.cd(directory);
try {
sftp.put(new FileInputStream(file), file.getName());
} catch (Exception e) {
throw new Exception("文件上傳失敗");
}
}
/**
* 下載單個文件
*
* @param directory
* 下載目錄
* @param downloadFile
* 下載的文件
* @param saveDirectory
* 存在本地的路徑
*
* @throws Exception
*/
@SuppressWarnings("rawtypes")
public void download(ChannelSftp sftp, String directory, String downloadFile, String saveDirectory)
throws Exception {
Vector content = sftp.ls(directory);
if (content == null) {
sftp.mkdir(directory);
}
String saveFile = saveDirectory + "//" + downloadFile;
sftp.cd(directory);
File file = new File(saveFile);
sftp.get(downloadFile, new FileOutputStream(file));
}
/**
* 刪除文件
*
* @param directory
* 要刪除文件所在目錄
* @param deleteFile
* 要刪除的文件
*
* @throws Exception
*/
public void delete(String directory, String deleteFile, ChannelSftp sftp) throws Exception {
sftp.cd(directory);
sftp.rm(deleteFile);
}
/**
* 列出目錄下的文件
*
* @param directory
* 要列出的目錄
*
* @return list 文件名列表
*
* @throws Exception
*/
@SuppressWarnings("rawtypes")
public List<String> listFiles(String directory, ChannelSftp sftp) throws Exception {
Vector fileList;
List<String> fileNameList = new ArrayList<String>();
fileList = sftp.ls(directory);
Iterator it = fileList.iterator();
while (it.hasNext()) {
String fileName = ((LsEntry) it.next()).getFilename();
if (".".equals(fileName) || "..".equals(fileName)) {
continue;
}
fileNameList.add(fileName);
}
return fileNameList;
}
/**
* 更改文件名
*
* @param directory
* 文件所在目錄
* @param oldFileNm
* 原文件名
* @param newFileNm
* 新文件名
*
* @throws Exception
*/
public void rename(String directory, String oldFileNm, String newFileNm, ChannelSftp sftp) throws Exception {
sftp.cd(directory);
sftp.rename(oldFileNm, newFileNm);
}
public void cd(String directory, ChannelSftp sftp) throws Exception {
sftp.cd(directory);
}
public InputStream get(String directory, ChannelSftp sftp) throws Exception {
InputStream streatm = sftp.get(directory);
return streatm;
}
/**
* 上傳文件支持多文件上傳
* @param files 上傳的文件
* @param folderPath 本地服務器目錄
*/
public static void upload(CommonsMultipartFile[] files,String folderPath){
//文件上傳的目錄
String directory="";
//鏈接ftp的參數
String url="";
String username="";
String password="";
int port=0;
//循環判斷文件
for (MultipartFile file : files) {
if (!file.isEmpty()) {
try {
byte[] b = new byte[1024];
InputStream is = file.getInputStream();
OutputStream os = new FileOutputStream(folderPath + File.separator + "upload" + file.getName());
int len = 0;
while ((len = is.read(b)) > 0) {
os.write(b);
}
is.close();
os.close();
//進行ftp操作
ChannelSftp sftp = null;
sftp =getConnect(url, port, username, password);
upload(directory, folderPath + File.separator + "upload" + file.getName(), sftp);
} catch (Exception e) {
new Exception(e.toString());
}
}
}
}
/**
* 測試是否連接成功
*/
public static void main(String[] args) {
/*
* ChannelSftp sftp = null; try { sftp = getConnect("10.1.234.194", 22,
* "devusr01", "devusr#01_Infra@8899"); download(
* "/aifs01/devusers/devusr01/domains/IT_MIS1TD1/servers/MIS1TD1_DEVCM-S1/conf"
* ,"logging.properties","G:\\test\\logging.properties",sftp); } catch
* (Exception e) { e.printStackTrace(); }
*/
ChannelSftp sftp = null;
try {
sftp = getConnect("zhixin.asiainfo.com", 22, null, null);
download("https://zhixin.asiainfo.com/gitlab/wupf/pdmcompare/repository/archive.zip?ref=master/wupf/jpfapp",
"jpfapp.zip", "G:\\test\\jpfapp.zip", sftp);
} catch (Exception e) {
e.printStackTrace();
}
}
}