无法使用 Java FTP 客户端下载具有阿拉伯名称的文

Can#39;t download files with Arabic name with Java FTP client(无法使用 Java FTP 客户端下载具有阿拉伯名称的文件)

本文介绍了无法使用 Java FTP 客户端下载具有阿拉伯名称的文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有连接到 FTP 服务器并下载文件的 Java 代码.如果文件名包含阿拉伯字母,则始终无法下载.但是如果是英文的,就下载成功了.

I have Java code that connects to an FTP server and downloads files. If the file name contains Arabic letters, then it always fails to download. But if it's English, it downloads successfully.

这是我的代码.
如果路径是这样的则下载失败:

This is my code.
If the path is like this then it fails to download:

String actualFileLocation =
    "/RelatedDocumentUploads\...\2017-S2\تقرير الربع الرابع تقرير 2017 (006)senton(18-01-2017).pdf" ;

但如果它像下面这样就可以正常工作:

But if it's like the following it works fine:

String actualFileLocation =
    "/RelatedDocumentUploads\...\2017-S2\RCJY O5.K2 -D6(Q4) 2017-Doc 1.JPG" ;

其余代码:

int index = actualFileLocation.lastIndexOf("\");
int extIndex = actualFileLocation.lastIndexOf(".");
String fileName = actualFileLocation.substring(index + 1, extIndex);
String extensn = actualFileLocation.substring(extIndex, actualFileLocation.length());
File parent = new File(System.getProperty("java.io.tmpdir"));
File tempFile = new File(parent, fileName + extensn);
tempFile.createNewFile();
OutputStream outputStream = new BufferedOutputStream(new FileOutputStream(tempFile));
boolean success = ftpClient.retrieveFile(actualFileLocation, outputStream);

FTP 客户端来自类型:public class org.apache.commons.net.ftp.FTPClient

FTP client is from type : public class org.apache.commons.net.ftp.FTPClient

我的代码有什么问题?

这是日志的输出:

PASV
227 Entering Passive Mode (10,110,103,31,215,6)
RETR /RelatedDocumentUploadsEntitiesRCJYKPIDocumentsRCJY.O5.K2Supporting Document2017-S2تقرير الربع الرابع تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf
550 File not found

这是来自 WinSCP 客户端的日志,它成功下载了文件:

And this is the log from WinSCP client, which downloads the file successfully:

. 2019-03-04 17:47:22.289 --------------------------------------------------------------------------
. 2019-03-04 17:47:22.290 WinSCP Version 5.13.7 (Build 9125) (OS 6.1.7601 Service Pack 1 - Windows 7 Professional)
. 2019-03-04 17:47:22.290 Configuration: HKCUSoftwareMartin PrikrylWinSCP 2
. 2019-03-04 17:47:22.290 Log level: Normal
. 2019-03-04 17:47:22.290 Local account: MyPC-EGPCHome
. 2019-03-04 17:47:22.290 Working directory: C:Program Files (x86)WinSCP
. 2019-03-04 17:47:22.290 Process ID: 13160
. 2019-03-04 17:47:22.291 Command-line: "C:Program Files (x86)WinSCPWinSCP.exe" 
. 2019-03-04 17:47:22.291 Time zone: Current: GMT+2 (Egypt Standard Time), No DST
. 2019-03-04 17:47:22.291 Login time: Monday, March 04, 2019 5:47:22 PM
. 2019-03-04 17:47:22.291 --------------------------------------------------------------------------
. 2019-03-04 17:47:22.291 Session name: user@10.110.111.111 (Ad-Hoc site)
. 2019-03-04 17:47:22.291 Host name: 10.110.111.111 (Port: 21)
. 2019-03-04 17:47:22.291 User name: user (Password: No, Key file: No, Passphrase: No)
. 2019-03-04 17:47:22.291 Transfer Protocol: FTP
. 2019-03-04 17:47:22.291 Ping type: Dummy, Ping interval: 30 sec; Timeout: 15 sec
. 2019-03-04 17:47:22.292 Disable Nagle: No
. 2019-03-04 17:47:22.292 Proxy: None
. 2019-03-04 17:47:22.292 Send buffer: 262144
. 2019-03-04 17:47:22.292 UTF: Auto
. 2019-03-04 17:47:22.292 FTPS: None [Client certificate: No]
. 2019-03-04 17:47:22.292 FTP: Passive: Yes [Force IP: Auto]; MLSD: Auto [List all: Auto]; HOST: Auto
. 2019-03-04 17:47:22.292 Local directory: default, Remote directory: home, Update: Yes, Cache: Yes
. 2019-03-04 17:47:22.292 Cache directory changes: Yes, Permanent: Yes
. 2019-03-04 17:47:22.292 Recycle bin: Delete to: No, Overwritten to: No, Bin path: 
. 2019-03-04 17:47:22.292 Timezone offset: 0h 0m
. 2019-03-04 17:47:22.292 --------------------------------------------------------------------------
. 2019-03-04 17:47:22.354 Connecting to 10.110.103.31 ...
. 2019-03-04 17:47:22.804 Connected with 10.110.103.31. Waiting for welcome message...
< 2019-03-04 17:47:23.286 220-FileZilla Server 0.9.60 beta
< 2019-03-04 17:47:23.286 220-
< 2019-03-04 17:47:23.286 220 EMP FTP
> 2019-03-04 17:47:23.286 USER user
< 2019-03-04 17:47:23.780 331 Password required for user
> 2019-03-04 17:47:29.603 PASS **********
< 2019-03-04 17:47:30.092 230 Logged on
> 2019-03-04 17:47:30.093 SYST
< 2019-03-04 17:47:30.585 215 UNIX emulated by FileZilla
> 2019-03-04 17:47:30.585 FEAT
< 2019-03-04 17:47:31.078 211-Features:
< 2019-03-04 17:47:31.078  MDTM
< 2019-03-04 17:47:31.078  REST STREAM
< 2019-03-04 17:47:31.078  SIZE
< 2019-03-04 17:47:31.078  MLST type*;size*;modify*;
< 2019-03-04 17:47:31.078  MLSD
< 2019-03-04 17:47:31.078  UTF8
< 2019-03-04 17:47:31.078  CLNT
< 2019-03-04 17:47:31.078  MFMT
< 2019-03-04 17:47:31.078  EPSV
< 2019-03-04 17:47:31.078  EPRT
< 2019-03-04 17:47:31.079 211 End
> 2019-03-04 17:47:31.088 CLNT WinSCP-release-5.13.7
< 2019-03-04 17:47:31.578 200 Don't care
> 2019-03-04 17:47:31.578 OPTS UTF8 ON
< 2019-03-04 17:47:32.067 202 UTF8 mode is always enabled. No need to send this command.
. 2019-03-04 17:47:32.090 Connected
. 2019-03-04 17:47:32.090 --------------------------------------------------------------------------
. 2019-03-04 17:47:32.091 Using FTP protocol.
. 2019-03-04 17:47:32.091 Doing startup conversation with host.
> 2019-03-04 17:47:32.107 PWD
< 2019-03-04 17:47:32.601 257 "/" is current directory.
. 2019-03-04 17:47:32.601 Getting current directory name.
. 2019-03-04 17:47:32.629 Retrieving directory listing...
> 2019-03-04 17:47:32.629 TYPE A
< 2019-03-04 17:47:33.120 200 Type set to A
> 2019-03-04 17:47:33.121 PASV
< 2019-03-04 17:47:33.588 227 Entering Passive Mode (10,110,103,31,193,94)
> 2019-03-04 17:47:33.589 MLSD
. 2019-03-04 17:47:33.589 Connecting to 10.110.111.111:49502 ...
< 2019-03-04 17:47:34.544 150 Opening data channel for directory listing of "/"
. 2019-03-04 17:47:34.545 Data connection closed
. 2019-03-04 17:47:34.546 type=dir;modify=20190224133717; RelatedDocumentUploads
. 2019-03-04 17:47:34.546 type=dir;modify=20190217090137; RelatedDocumentUploads_UAT
< 2019-03-04 17:47:34.555 226 Successfully transferred "/"
. 2019-03-04 17:47:34.555 Directory listing successful
. 2019-03-04 17:47:34.556 ..;D;0;1899-12-30T02:00:00.000Z;0;"" [0];"" [0];---------;0
. 2019-03-04 17:47:34.556 RelatedDocumentUploads;D;0;2019-02-24T13:37:17.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:34.556 RelatedDocumentUploads_UAT;D;0;2019-02-17T09:01:37.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:34.594 Startup conversation with host finished.
. 2019-03-04 17:47:53.904 Changing directory to "/RelatedDocumentUploadsaaaabbbccccddddRCJY.O5.K2Supporting Document".
> 2019-03-04 17:47:53.912 CWD /RelatedDocumentUploadsaaaabbbccccddddRCJY.O5.K2Supporting Document
< 2019-03-04 17:47:54.398 250 CWD successful. "/RelatedDocumentUploadsaaaabbbccccddddRCJY.O5.K2/Supporting Document" is current directory.
. 2019-03-04 17:47:54.399 Getting current directory name.
> 2019-03-04 17:47:54.399 PWD
< 2019-03-04 17:47:54.893 257 "/RelatedDocumentUploadsaaaabbbccccddddRCJY.O5.K2/Supporting Document" is current directory.
. 2019-03-04 17:47:54.894 Retrieving directory listing...
> 2019-03-04 17:47:54.894 TYPE A
< 2019-03-04 17:47:55.383 200 Type set to A
> 2019-03-04 17:47:55.384 PASV
< 2019-03-04 17:47:55.878 227 Entering Passive Mode (10,110,103,31,194,79)
> 2019-03-04 17:47:55.878 MLSD
. 2019-03-04 17:47:55.878 Connecting to 10.111.111.111:49743 ...
. 2019-03-04 17:47:56.855 Data connection closed
< 2019-03-04 17:47:56.855 150 Opening data channel for directory listing of "/RelatedDocumentUploads/aaaa/bbbb/cccc/dddd/RCJY.O5.K2/Supporting Document"
< 2019-03-04 17:47:56.855 226 Successfully transferred "/RelatedDocumentUploads/aaaa/bbbb/cccc/dddd/RCJY.O5.K2/Supporting Document"
. 2019-03-04 17:47:56.856 type=dir;modify=20181025073148; 2016-S1
. 2019-03-04 17:47:56.856 type=dir;modify=20181025073148; 2016-S2
. 2019-03-04 17:47:56.856 type=dir;modify=20190224134557; 2017-S1
. 2019-03-04 17:47:56.856 type=dir;modify=20190224134557; 2017-S2
. 2019-03-04 17:47:56.856 type=dir;modify=20190224134600; 2018-S1
. 2019-03-04 17:47:56.856 type=dir;modify=20190224134600; 2018-S2
. 2019-03-04 17:47:56.856 type=dir;modify=20181025073148; 2019-S1
. 2019-03-04 17:47:56.856 type=dir;modify=20181025073148; 2019-S2
. 2019-03-04 17:47:56.856 type=dir;modify=20181025073148; 2020-S1
. 2019-03-04 17:47:56.856 type=dir;modify=20181025073148; 2020-S2
. 2019-03-04 17:47:56.856 Directory listing successful
. 2019-03-04 17:47:56.857 ..;D;0;1899-12-30T02:00:00.000Z;0;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.857 2016-S1;D;0;2018-10-25T07:31:48.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.857 2016-S2;D;0;2018-10-25T07:31:48.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.857 2017-S1;D;0;2019-02-24T13:45:57.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.857 2017-S2;D;0;2019-02-24T13:45:57.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.857 2018-S1;D;0;2019-02-24T13:46:00.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.857 2018-S2;D;0;2019-02-24T13:46:00.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.858 2019-S1;D;0;2018-10-25T07:31:48.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.858 2019-S2;D;0;2018-10-25T07:31:48.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.858 2020-S1;D;0;2018-10-25T07:31:48.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:56.858 2020-S2;D;0;2018-10-25T07:31:48.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:47:59.134 Changing directory to "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2016-S2".
> 2019-03-04 17:47:59.139 CWD /RelatedDocumentUploads/aaaa/bbbb/cccc/dddd/RCJY.O5.K2/Supporting Document/2016-S2
< 2019-03-04 17:47:59.627 250 CWD successful. "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2016-S2" is current directory.
. 2019-03-04 17:47:59.627 Getting current directory name.
> 2019-03-04 17:47:59.628 PWD
< 2019-03-04 17:48:00.123 257 "/RelatedDocumentUploads/aaaa/bbb/cccc/ddd/RCJY.O5.K2/Supporting Document/2016-S2" is current directory.
. 2019-03-04 17:48:00.124 Retrieving directory listing...
> 2019-03-04 17:48:00.124 TYPE A
< 2019-03-04 17:48:00.617 200 Type set to A
> 2019-03-04 17:48:00.618 PASV
< 2019-03-04 17:48:01.113 227 Entering Passive Mode (10,110,103,31,215,238)
> 2019-03-04 17:48:01.113 MLSD
. 2019-03-04 17:48:01.113 Connecting to 10.110.103.31:55278 ...
. 2019-03-04 17:48:02.095 Data connection closed
< 2019-03-04 17:48:02.096 150 Opening data channel for directory listing of "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2016-S2"
< 2019-03-04 17:48:02.096 226 Successfully transferred "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2016-S2"
. 2019-03-04 17:48:02.096 <Empty directory listing>
. 2019-03-04 17:48:02.096 Directory listing successful
. 2019-03-04 17:48:02.096 ..;D;0;1899-12-30T02:00:00.000Z;0;"" [0];"" [0];---------;0
. 2019-03-04 17:48:06.055 Cached directory change via "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2017-S2" to "/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2".
. 2019-03-04 17:48:06.055 Getting current directory name.
. 2019-03-04 17:48:06.061 Retrieving directory listing...
> 2019-03-04 17:48:06.061 CWD /RelatedDocumentUploads/aaa/bbb/ccc/dddd/RCJY.O5.K2/Supporting Document/2017-S2
< 2019-03-04 17:48:06.553 250 CWD successful. "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2017-S2" is current directory.
> 2019-03-04 17:48:06.553 PWD
< 2019-03-04 17:48:07.047 257 "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2017-S2" is current directory.
> 2019-03-04 17:48:07.048 TYPE A
< 2019-03-04 17:48:07.539 200 Type set to A
> 2019-03-04 17:48:07.539 PASV
< 2019-03-04 17:48:08.034 227 Entering Passive Mode (10,110,103,31,206,23)
> 2019-03-04 17:48:08.034 MLSD
. 2019-03-04 17:48:08.034 Connecting to 10.110.103.31:52759 ...
< 2019-03-04 17:48:11.885 150 Opening data channel for directory listing of "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2017-S2"
. 2019-03-04 17:48:11.885 Data connection closed
. 2019-03-04 17:48:11.885 type=file;modify=20180116032646;size=56290; RCJY O5.K2 -D6(Q4) 2017-Doc 1.JPG
. 2019-03-04 17:48:11.885 type=file;modify=20180116032658;size=304601; RCJY O5.K2 -D6(Q4) 2017-Doc 2.pdf
. 2019-03-04 17:48:11.885 type=dir;modify=20190224134558; الجبيل ورأس الخير
. 2019-03-04 17:48:11.886 type=file;modify=20180118145415;size=1223036; تقرير الربع الرابع لمؤشرات الهيئة الملكية للجبيل وينبع 2017 (006)senton(18-01-2017).pdf
< 2019-03-04 17:48:11.886 226 Successfully transferred "/RelatedDocumentUploads/aaa/bbb/ccc/ddd/RCJY.O5.K2/Supporting Document/2017-S2"
. 2019-03-04 17:48:11.886 Directory listing successful
. 2019-03-04 17:48:11.886 ..;D;0;1899-12-30T02:00:00.000Z;0;"" [0];"" [0];---------;0
. 2019-03-04 17:48:11.886 RCJY O5.K2 -D6(Q4) 2017-Doc 1.JPG;-;56290;2018-01-16T03:26:46.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:48:11.886 RCJY O5.K2 -D6(Q4) 2017-Doc 2.pdf;-;304601;2018-01-16T03:26:58.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:48:11.886 علم علم علم علم;D;0;2019-02-24T13:45:58.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:48:11.887 التقرير التقرير التقرير التقرير القريري2017 (006)senton(18-01-2017).pdf;-;1223036;2018-01-18T14:54:15.000Z;3;"" [0];"" [0];---------;0
. 2019-03-04 17:48:20.443 Copying 1 files/directories to local directory "C:UsersyserDocuments" - total size: 1,223,036
. 2019-03-04 17:48:20.443   PrTime: Yes; PrRO: No; Rght: rw-r--r--; PrR: No (No); FnCs: N; RIC: 0100; Resume: S (102400); CalcS: Yes; Mask: *.*
. 2019-03-04 17:48:20.443   TM: B; ClAr: No; RemEOF: No; RemBOM: No; CPS: 0; NewerOnly: No; InclM: ; ResumeL: 0
. 2019-03-04 17:48:20.443   AscM: *.*html; *.htm; *.txt; *.php; *.php3; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; *.js; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
. 2019-03-04 17:48:20.443 File: '/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير2017 (006)senton(18-01-2017).pdf' [2018-01-18T14:54:15.000Z] [1223036]
. 2019-03-04 17:48:20.447 Copying "/RelatedDocumentUploads/aaa/bbb/ccc/dddd/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf" to local directory started.
. 2019-03-04 17:48:20.448 Binary transfer mode selected.
. 2019-03-04 17:48:20.448 Starting download of /RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf
. 2019-03-04 17:48:20.449 Asking user:
. 2019-03-04 17:48:20.449 **Overwrite local file 'تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf'?**
. 2019-03-04 17:48:20.449 
. 2019-03-04 17:48:20.449 Destination directory already contains file 'تقرير تقرير تقرير تقرير تقرير2017 (006)senton(18-01-2017).pdf'.
. 2019-03-04 17:48:20.449 Choose, if you want to overwrite the file or skip this transfer and keep existing file.
. 2019-03-04 17:48:20.449  
. 2019-03-04 17:48:20.449 New:          1,223,036 bytes, 1/18/2018 4:54:15 PM
. 2019-03-04 17:48:20.449 Existing:     1,223,036 bytes, 1/18/2018 4:54:15 PM ()
> 2019-03-04 17:48:21.721 TYPE I
< 2019-03-04 17:48:22.207 200 Type set to I
> 2019-03-04 17:48:22.207 PASV
< 2019-03-04 17:48:22.702 227 Entering Passive Mode (10,110,103,31,236,137)
> 2019-03-04 17:48:22.712 RETR تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf
. 2019-03-04 17:48:22.712 Connecting to 10.110.103.31:60553 ...
< 2019-03-04 17:48:24.082 150 Opening data channel for file download from server of "/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf"
. 2019-03-04 17:48:30.748 Data connection closed
< 2019-03-04 17:48:30.748 226 Successfully transferred "/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf"
. 2019-03-04 17:48:30.748 Preserving timestamp [2018-01-18T14:54:15.000Z]
. 2019-03-04 17:48:30.750 Download successful
. 2019-03-04 17:48:30.750 Transfer done: '/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf' => 'C:UsersosmohameDocumentsتقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf' [1223036]
. 2019-03-04 17:48:30.766 Copying finished: Transferred: 1,223,036, Elapsed: 0:00:10, CPS: 182,733/s
. 2019-03-04 17:48:37.731 Disconnected from server

这是初始化与 FTP 服务器的连接的代码:

And this is the code that initializes the connection to the FTP server:

logger.info("Creating the ftp connection using the details");
String ftpServerAddress = wccInstanceDetails.get("ftpServer");
String ftpPort = wccInstanceDetails.get("ftpPort");
String ftpUserName = wccInstanceDetails.get("ftpUser");
String ftpPassword = wccInstanceDetails.get("ftppassword");
FTPClient ftpClient = new FTPClient();
try {
    //added here
    ftpClient.setAutodetectUTF8(true);

    ftpClient.connect(ftpServerAddress, Integer.parseInt(ftpPort));
    ftpClient.login(ftpUserName, ftpPassword);
    ftpClient.enterLocalPassiveMode();
    ftpClient.setFileType(FTP.ASCII_FILE_TYPE);
} catch (IOException ex) {
    logger.error("Error occurs while creating the FTP connection : " + ex.getMessage());
}
return ftpClient;

<小时>

添加setautodetectUTF(true)后,输出变了,但是下载的文件损坏了:


After adding the setautodetectUTF(true), the output is changed, but the file is downloaded corrupted:

2019-03-04 16:05:10 INFO  FtpConnection:17 - Creating the ftp connection using the details
2019-03-04 16:05:10 INFO  FtpConnection:19 - 10.110.103.31
2019-03-04 16:05:10 INFO  FtpConnection:21 - 21
2019-03-04 16:05:10 INFO  FtpConnection:38 - true
220-FileZilla Server 0.9.60 beta
220-
220 EMP FTP
FEAT
211-Features:
 MDTM
 REST STREAM
 SIZE
 MLST type*;size*;modify*;
 MLSD
 UTF8
 CLNT
 MFMT
 EPSV
 EPRT
211 End
USER *******
331 Password required for epmftp
PASS *******
230 Logged on
TYPE A
200 Type set to A
PASV
227 Entering Passive Mode (10,110,103,31,224,65)
RETR /RelatedDocumentUploadsEntitiesRCJYKPIDocumentsRCJY.O5.K2Supporting Document2017-S2تقرير تقرير تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf
150 Opening data channel for file download from server of "/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير تقرير تقرير تقرير تقرير تقرير 2017 (006)senton(18-01-2017).pdf"
226 Successfully transferred "/RelatedDocumentUploads/Entities/RCJY/KPI/Documents/RCJY.O5.K2/Supporting Document/2017-S2/تقرير الربع الرابع لمؤشرات تقرير تقرير تقرير (006)senton(18-01-2017).pdf"

推荐答案

您可能需要使用 UTF-8 编码.首先要尝试的是调用 FTPClient.setAutodetectUTF8:

You may need to use UTF-8 encoding. First thing to try is to call FTPClient.setAutodetectUTF8:

ftpClient.setAutodetectUTF8(true);

(连接前调用)

这应该可以解决您的问题.

That should fix the problem your question is about.

解决文件名问题后,您需要修复传输模式问题.您正在以文本模式传输二进制文件 (PDF).

Once you resolve the file name issue, you will need to fix transfer mode issue. You are transferring binary files (PDF) in text mode.

你需要使用二进制模式:

You need to use binary mode:

ftpClient.setFileType(FTP.BINARY_FILE_TYPE);

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