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@Slf4j
public class FtpUtil implements Closeable {
private final String ftpRootPath;
public FtpUtil(String ftpHost, Integer ftpPort, String ftpRootPath, String ftpUsername, String ftpPasswd) {
this.ftpRootPath = ftpRootPath;
if (ftpClient == null || !ftpClient.isAvailable()) {
ftpClient = new FTPClient();
//设置连接超时时间
ftpClient.setConnectTimeout(1000 * 30);
try {
// 连接FTP服务器
ftpClient.connect(ftpHost, ftpPort);
// 登陆FTP服务器
ftpClient.login(ftpUsername, ftpPasswd);
// 设置文件类型为二进制（如果从FTP下载或上传的文件是压缩文件的时候，不进行该设置可能会导致获取的压缩文件解压失败）
ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
// ftpClient.enterLocalPassiveMode();//开启被动模式，否则文件上传不成功，也不报错
if (!FTPReply.isPositiveCompletion(ftpClient.getReplyCode())) {
log.info("连接FTP失败，用户名或密码错误。");
ftpClient.disconnect();
} else {
log.info("FTP连接成功!");
}
} catch (Exception e) {
log.info("登陆FTP失败，请检查FTP相关配置信息是否正确！" + e);
}
}
}
private static FTPClient ftpClient = null;
/**
* 列出目录下所有文件的完整路径
*
* @param path
* @return {@link InputStream}
* @throws IOException
*/
public String[] listFiles(String path) {
if (ftpClient == null) {
log.error("ftpClient is null!");
return null;
}
FTPFile[] ftpFiles = new FTPFile[0];
try {
ftpFiles = ftpClient.listFiles(path);
} catch (IOException e) {
log.error("获取[ftp：" + path + "]文件列表失败！");
return new String[0];
}
return Arrays.stream(ftpFiles).map(p -> {
if (path.endsWith("/")) {
return path + p.getName();
} else {
return path + "/" + p.getName();
}
}).toArray(String[]::new);
}
/**
* 获取 FTP 文件流
*
* @param path
* @return {@link InputStream}
* @throws IOException
*/
public InputStream getFTPFileInputStream(String path) throws IOException {
if (ftpClient == null) {
log.error("ftpClient is null!");
return null;
}
try {
return ftpClient.retrieveFileStream(path);
} catch (Exception e) {
log.error("读取ftp文件失败！");
return null;
}
}
/**
* 下载文件
*
* @param sourceFilePath 源文件路径
* @param targetDir
* @return {@link String}
*/
public String downloadFile(String sourceFilePath, String targetDir) throws IOException {
if (ftpClient == null) {
log.error("ftpClient is null!");
return null;
}
try (InputStream inputStream = ftpClient.retrieveFileStream(sourceFilePath)) {
String[] split = sourceFilePath.split("/");
if (!targetDir.endsWith("/")) {
targetDir += "/";
}
File file = new File(targetDir);
if (!(file.exists() && file.isDirectory())) {
file.mkdirs();
}
String targetFilePath = targetDir + split[split.length - 1];
try (FileOutputStream outputStream = new FileOutputStream(targetFilePath);) {
byte[] bytes = new byte[10240];
while (inputStream.read(bytes) != -1) {
outputStream.write(bytes);
}
}
return targetFilePath;
} finally {
ftpClient.completePendingCommand();
}
}
/**
* 上传文件
*
* @param sourceFilePath 源文件路径
* @param targetDir
* @return {@link String}
*/
public String uploadFile(String sourceFilePath, String targetFilePath) throws IOException {
if (ftpClient == null) {
log.error("ftpClient is null!");
return null;
}
try (BufferedInputStream inputStream = new BufferedInputStream(new FileInputStream(sourceFilePath))) {
ftpClient.storeFile(targetFilePath, inputStream);
}
return targetFilePath;
}
public boolean isDirExist(String dir) throws IOException {
return ftpClient.listFiles(dir).length != 0;
}
public boolean mkdir(String dir) throws IOException {
return ftpClient.makeDirectory(dir);
}
/**
* 查找文件夹
*
* @return {@link List}<{@link String}>
* @throws IOException
*/
public String findDir(String dirName) throws IOException {
List<String> paths = new ArrayList<>();
FTPFile[] files = ftpClient.listFiles(ftpRootPath);
for (FTPFile file : files) {
paths.add(ftpRootPath + "/" + file.getName());
}
List<String> childPaths = new ArrayList<>();
for (int i = 0; i < paths.size(); i++) {
String path = paths.get(i);
if (path.contains(dirName)) {
return path;
} else {
files = ftpClient.listFiles(path);
for (FTPFile file : files) {
if (file.isDirectory()) {
if (file.getName().equals(dirName)) {
System.out.println(new String((path + "/" + file.getName()).getBytes(StandardCharsets.ISO_8859_1), "gb2312"));
return path + "/" + file.getName();
}
// 过滤文件夹名称为架次号的
if (file.getName().length() < 15) {
childPaths.add(path + "/" + file.getName());
}
}
}
}
if (i == paths.size() - 1) {
paths.addAll(childPaths);
childPaths.clear();
}
}
return null;
}
@Override
public void close() throws IOException {
if (ftpClient != null) {
try {
ftpClient.disconnect();
} catch (Exception e) {
log.error("ftp 链接关闭失败！");
}
}
}
public static String converToLocalString(String path, String sourceCharset, String targetCharset) {
try {
return new String(path.getBytes(sourceCharset), targetCharset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
public boolean completePendingCommand() throws IOException {
return ftpClient.completePendingCommand();
}
public static void main(String[] args) throws IOException {
FtpUtil ftpUtil = new FtpUtil(CentreConfig.FTP_HOST, CentreConfig.FTP_PORT, CentreConfig.FTP_ROOT_PATH, CentreConfig.FTP_USERNAME, CentreConfig.FTP_PASSWD);
// String[] files = ftpUtil.listFiles("/2022/221010CPY8fz113572331/39ffa2c6-4b8a-43a2-8dbb-4e417983baf9/dom/terrain/");
// System.out.println(Arrays.stream(files).collect(Collectors.toList()));
// for (String file : files) {
// String downloadFile = ftpUtil.downloadFile(file, "D:/test/testDom/");
// System.out.println(downloadFile);
// }
}
}
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