<!--        ftp包-->
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
            <version>3.9.0</version>
        </dependency>

  public void getQxjFile() throws IOException {
        FTPClient ftpClient = new FTPClient(); //創(chuàng)建FTP連接客戶端
        ftpClient.enterLocalPassiveMode();// 設置被動模式
        //ftp設置ip,端口
        ftpClient.connect(costomDefineData.getQxjIp(), Integer.parseInt(costomDefineData.getQxjPort()));
        //設置調用為被動模式
        ftpClient.enterLocalPassiveMode();
        //ftpClient.enterLocalActiveMode(); 設置為主動模式 
        //設置文件以二進制文件模式傳輸
        ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
        //ftp登錄
        boolean loggedIn = ftpClient.login(costomDefineData.getQxjUserName(), costomDefineData.getQxjPassword());
        if (loggedIn) {
            System.out.println("登錄成功");
        } else {
            System.out.println("登錄失敗");
        }
        //切換到登錄后的文件夾 這里指定ftp服務器文件存放位置
        boolean changed = ftpClient.changeWorkingDirectory("/");
        if (changed) {
            //獲取到對應的FTP文件 這是獲取對應文件夾下全部文件
            FTPFile[] files = ftpClient.listFiles();
            System.out.println("獲取文件個數" + files.length);
            for (FTPFile file : files) {
                if (file.isFile()) {

                    File localDir = new File(costomDefineData.getQxjFilePath() + YM + "/" + Day);
                    if (!localDir.exists()) {
                        localDir.mkdirs();
                    }
                    File localFile = new File(costomDefineData.getQxjFilePath() + YM + "/" + Day + "/" + file.getName());
                    if (!localFile.exists()) {
                        localFile.createNewFile();
                    }
                    //將ftp服務器上文件同步到本地
                    ftpClient.retrieveFile("/" + file.getName(), new FileOutputStream(localFile));

                    BufferedReader reader = new BufferedReader(new FileReader(localFile));
                    // 讀取文件內容并解析
                    String line;
                    String result = "";
                    while ((line = reader.readLine()) != null) {
                        // 解析每一行的數據
                        result = result + line;
                    }
                    }
                    }
                    //實現ftp上文件刪除
                     boolean deleted = ftpClient.deleteFile("/" + file.getName());
                    }
                    //ftp用戶登出
        ftpClient.logout();
        //ftp去掉鏈接
        ftpClient.disconnect(); 
        }

public class FTPExample {
    public static void main(String[] args) {
        FTPClient ftpClient = new FTPClient();
        // 連接和登錄代碼省略
        
        try {
            // 上傳文件
            File localFile = new File("local-file.txt");
            String remoteFile = "remote-file.txt";
            
            FileInputStream inputStream = new FileInputStream(localFile);
            
            boolean uploaded = ftpClient.storeFile(remoteFile, inputStream);
            
            inputStream.close();
            
            if (uploaded) {
                System.out.println("文件上傳成功！");
            } else {
                System.out.println("文件上傳失敗！");
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 斷開連接代碼省略
        }
    }
}