windows環境下使用

public static void dowmloadFtpWindos(String fileUuid, HttpServletRequest request,HttpServletResponse response) {

LmpFileInfo finfo = lmpFileInfoServiceClient.getByUuid(fileUuid);

String dfname = processFileName(request, finfo.getName());

response.setContentType("multipart/form-data;charset=UTF-8");

response.setHeader("Content-Disposition", "attachment;fileName=" + dfname);

FtpUtil ftpUtil = new FtpUtil();

try {

String saveurl = finfo.getSaveurl();

String targetPath = "";

String fileName = "";

if (saveurl != null && saveurl.lastIndexOf('/') > 0) {

targetPath = finfo.getSaveurl().substring(0, saveurl.lastIndexOf('/'));

fileName = finfo.getSaveurl().substring(saveurl.lastIndexOf('/') + 1);

}

ftpUtil.downFile(targetPath,fileName,response);

} catch (Exception e) {

e.printStackTrace();

} finally {

ftpUtil.disConFtp();

}

}

Lunix下使用

public static String dowmloadFtpLunix(String fileUuid, HttpServletRequest request, HttpServletResponse response) {

LmpFileInfo finfo = lmpFileInfoServiceClient.getByUuid(fileUuid);

String dfname = processFileName(request, finfo.getName());

response.setContentType("multipart/form-data;charset=UTF-8");

response.setHeader("Content-Disposition", "attachment;fileName=" + dfname);

FtpUtil ftpUtil = new FtpUtil();

try {

FTPClient ftp = ftpUtil.getFtpClient();

// 設置PassiveMode傳輸

ftp.enterLocalPassiveMode();

// 設置以二進制流的方式傳輸

ftp.setFileTransferMode(FTP.STREAM_TRANSFER_MODE);

ftp.setFileType(FTP.BINARY_FILE_TYPE);

String saveurl = finfo.getSaveurl();

String targetPath = "";

String fileName = "";

if (saveurl != null && saveurl.lastIndexOf('/') > 0) {

targetPath = finfo.getSaveurl().substring(0, saveurl.lastIndexOf('/'));

fileName = finfo.getSaveurl().substring(saveurl.lastIndexOf('/') + 1);

}

ftp.changeWorkingDirectory(targetPath);

InputStream input = ftp.retrieveFileStream(new String(fileName.getBytes("GBK"),"ISO-8859-1"));

OutputStream out = response.getOutputStream();

int buf = -1;

while ((buf = input.read()) != -1) {

out.write(buf);

}

out.flush();

input.close();

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

} finally {

ftpUtil.disConFtp();

}

// 返回值要注意，要不然就出現下面這句錯誤！

// java+getOutputStream() has already been called for this response

return null;

}

總結

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