![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727152658-6a6778c28ac43.png\")
<\/p>\n<\/p>\n
👋 \u5927\u5bb6\u597d，\u6b22\u8fce\u6765\u5230\u6211\u7684\u6280\u672f\u535a\u5ba2！ 📚 \u5728\u8fd9\u91cc，\u6211\u4f1a\u5206\u4eab\u5b66\u4e60\u7b14\u8bb0\u3001\u5b9e\u6218\u7ecf\u9a8c\u4e0e\u6280\u672f\u601d\u8003，\u529b\u6c42\u7528\u7b80\u5355\u7684\u65b9\u5f0f\u8bb2\u6e05\u695a\u590d\u6742\u7684\u95ee\u9898\u3002 🎯 \u672c\u6587\u5c06\u56f4\u7ed5Linux\u8fd9\u4e2a\u8bdd\u9898\u5c55\u5f00，\u5e0c\u671b\u80fd\u4e3a\u4f60\u5e26\u6765\u4e00\u4e9b\u542f\u53d1\u6216\u5b9e\u7528\u7684\u53c2\u8003\u3002 🌱 \u65e0\u8bba\u4f60\u662f\u521a\u5165\u95e8\u7684\u65b0\u624b，\u8fd8\u662f\u6b63\u5728\u8fdb\u9636\u7684\u5f00\u53d1\u8005，\u5e0c\u671b\u4f60\u90fd\u80fd\u6709\u6240\u6536\u83b7！<\/p>\n
FTP（File Transfer Protocol）\u4f5c\u4e3a\u6700\u53e4\u8001\u3001\u6700\u6210\u719f\u7684\u6587\u4ef6\u4f20\u8f93\u534f\u8bae\u4e4b\u4e00，\u81f3\u4eca\u4ecd\u5728\u4f01\u4e1a\u7ea7\u5e94\u7528\u4e2d\u626e\u6f14\u91cd\u8981\u89d2\u8272\u3002\u65e0\u8bba\u662f\u90e8\u7f72\u9759\u6001\u8d44\u6e90\u3001\u5907\u4efd\u6570\u636e\u5e93，\u8fd8\u662f\u5728\u4e0d\u540c\u7cfb\u7edf\u95f4\u540c\u6b65\u6587\u4ef6，FTP \u670d\u52a1\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u57fa\u7840\u7ec4\u4ef6\u3002\u672c\u6587\u5c06\u5e26\u4f60\u4ece\u96f6\u5f00\u59cb，\u5728 Linux \u7cfb\u7edf\u4e0a\u642d\u5efa\u5b8c\u6574\u7684 FTP \u670d\u52a1\u5668，\u5e76\u901a\u8fc7 Java \u7f16\u5199\u5ba2\u6237\u7aef\u7a0b\u5e8f\u5b9e\u73b0\u81ea\u52a8\u5316\u4e0a\u4f20\u4e0e\u4e0b\u8f7d\u529f\u80fd\u3002<\/p>\n
\u867d\u7136\u73b0\u4ee3\u4e91\u5b58\u50a8\u548c HTTP API \u5df2\u7ecf\u975e\u5e38\u6d41\u884c，\u4f46 FTP \u4f9d\u7136\u6709\u5176\u4e0d\u53ef\u66ff\u4ee3\u7684\u4f18\u52bf：<\/p>\n
💡 \u5c0f\u8d34\u58eb：\u5982\u679c\u4f60\u9700\u8981\u52a0\u5bc6\u4f20\u8f93，\u5efa\u8bae\u4f7f\u7528 SFTP \u6216 FTPS，\u5b83\u4eec\u662f\u5728 FTP \u57fa\u7840\u4e0a\u589e\u52a0 SSL\/TLS \u52a0\u5bc6\u7684\u5b89\u5168\u7248\u672c\u3002<\/p>\n
\u6211\u4eec\u5c06\u5728\u4e00\u53f0\u6807\u51c6\u7684 Ubuntu 22.04 LTS \u670d\u52a1\u5668\u4e0a\u8fdb\u884c\u64cd\u4f5c\u3002\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f CentOS\u3001Debian \u6216\u5176\u4ed6\u53d1\u884c\u7248，\u547d\u4ee4\u7565\u6709\u4e0d\u540c，\u6211\u4f1a\u5728\u6587\u4e2d\u6ce8\u660e\u3002<\/p>\n
vsftpd（Very Secure FTP Daemon）\u662f Linux \u4e0a\u6700\u53d7\u6b22\u8fce\u7684 FTP \u670d\u52a1\u5668\u8f6f\u4ef6\u4e4b\u4e00，\u4ee5\u5176\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u6027\u8457\u79f0\u3002<\/p>\n
sudo<\/span> apt<\/span> update \u5982\u679c\u662f CentOS\/RHEL：<\/p>\n sudo<\/span> yum install<\/span> vsftpd -y<\/span> \u5b89\u88c5\u5b8c\u6210\u540e，\u542f\u52a8\u5e76\u8bbe\u7f6e\u5f00\u673a\u81ea\u542f：<\/p>\n sudo<\/span> systemctl start vsftpd \u4f60\u5e94\u8be5\u770b\u5230\u7c7b\u4f3c\u5982\u4e0b\u8f93\u51fa：<\/p>\n \u25cf vsftpd.service – vsftpd FTP server \u9ed8\u8ba4\u914d\u7f6e\u4f4d\u4e8e \/etc\/vsftpd.conf，\u6211\u4eec\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\u4ee5\u6ee1\u8db3\u751f\u4ea7\u73af\u5883\u9700\u6c42\u3002<\/p>\n \u9996\u5148\u5907\u4efd\u539f\u59cb\u914d\u7f6e：<\/p>\n sudo<\/span> cp<\/span> \/etc\/vsftpd.conf \/etc\/vsftpd.conf.bak<\/p>\n \u7136\u540e\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6：<\/p>\n sudo<\/span> nano<\/span> \/etc\/vsftpd.conf<\/p>\n # \u7981\u7528\u533f\u540d\u767b\u5f55 # \u542f\u7528\u672c\u5730\u7528\u6237\u767b\u5f55 # \u5141\u8bb8\u672c\u5730\u7528\u6237\u5199\u5165 # \u9650\u5236\u7528\u6237\u53ea\u80fd\u8bbf\u95ee\u81ea\u5df1\u7684\u4e3b\u76ee\u5f55 # \u5141\u8bb8 chroot \u76ee\u5f55\u53ef\u5199（\u91cd\u8981！\u5426\u5219\u65e0\u6cd5\u4e0a\u4f20） # \u4f7f\u7528\u88ab\u52a8\u6a21\u5f0f（\u63a8\u8350\u7528\u4e8e\u516c\u7f51\u8bbf\u95ee） # \u542f\u7528\u65e5\u5fd7\u8bb0\u5f55 # \u8bbe\u7f6e\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4（\u79d2） # \u9650\u5236\u6700\u5927\u5ba2\u6237\u7aef\u6570 # \u62d2\u7edd\u67d0\u4e9b\u7528\u6237\u767b\u5f55（\u53ef\u9009） # \u542f\u7528 UTF-8 \u7f16\u7801 \u26a0\ufe0f \u6ce8\u610f：allow_writeable_chroot=YES \u662f\u5173\u952e\u914d\u7f6e\u3002\u5982\u679c\u6ca1\u6709\u5b83，\u5373\u4f7f\u4f60\u5f00\u542f\u4e86 write_enable，\u7528\u6237\u4e5f\u65e0\u6cd5\u5728\u88ab chroot \u7684\u76ee\u5f55\u4e2d\u4e0a\u4f20\u6587\u4ef6\u3002<\/p>\n \u4fdd\u5b58\u540e\u91cd\u542f\u670d\u52a1：<\/p>\n sudo<\/span> systemctl restart vsftpd<\/p>\n \u4e3a\u4e86\u5b89\u5168\u8d77\u89c1，\u4e0d\u5efa\u8bae\u76f4\u63a5\u4f7f\u7528 root \u6216\u5df2\u6709\u7cfb\u7edf\u7528\u6237\u8fdb\u884c FTP \u64cd\u4f5c\u3002\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u4e13\u7528\u7528\u6237：<\/p>\n sudo<\/span> adduser ftpuser<\/p>\n \u7cfb\u7edf\u4f1a\u63d0\u793a\u4f60\u8bbe\u7f6e\u5bc6\u7801\u548c\u586b\u5199\u4e00\u4e9b\u4fe1\u606f（\u53ef\u4ee5\u4e00\u8def\u56de\u8f66\u8df3\u8fc7）\u3002\u63a5\u7740，\u4e3a\u8be5\u7528\u6237\u521b\u5efa\u4e13\u5c5e\u4e0a\u4f20\u76ee\u5f55：<\/p>\n sudo<\/span> mkdir<\/span> -p<\/span> \/home\/ftpuser\/uploads 🧩 \u6743\u9650\u8bf4\u660e：<\/p>\n Ubuntu \u9ed8\u8ba4\u4f7f\u7528 ufw，CentOS \u4f7f\u7528 firewalld\u3002\u786e\u4fdd\u5f00\u653e FTP \u7aef\u53e3：<\/p>\n sudo<\/span> ufw allow 20<\/span>\/tcp sudo<\/span> firewall-cmd –permanent<\/span> –add-port=<\/span>20<\/span>-21\/tcp \u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177 ftp \u6216\u56fe\u5f62\u5316\u5de5\u5177 FileZilla \u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n ftp<\/span> localhost<\/p>\n \u8f93\u5165\u7528\u6237\u540d ftpuser \u548c\u5bc6\u7801，\u5982\u679c\u6210\u529f\u767b\u5f55，\u4f60\u4f1a\u770b\u5230：<\/p>\n Connected to localhost. \u5c1d\u8bd5\u4e0a\u4f20\u4e00\u4e2a\u6d4b\u8bd5\u6587\u4ef6：<\/p>\n echo<\/span> "Hello FTP Server!"<\/span> ><\/span> test.txt \u5982\u679c\u4e00\u5207\u987a\u5229，\u6587\u4ef6\u5e94\u5df2\u4e0a\u4f20\u81f3 \/home\/ftpuser\/uploads\/\u3002<\/p>\n \u5982\u679c\u4f60\u5e0c\u671b\u901a\u8fc7\u516c\u7f51 IP \u8bbf\u95ee FTP \u670d\u52a1\u5668，\u8bf7\u6ce8\u610f：<\/p>\n 📌 \u8b66\u544a：FTP \u534f\u8bae\u672c\u8eab\u662f\u660e\u6587\u4f20\u8f93，\u5305\u62ec\u7528\u6237\u540d\u548c\u5bc6\u7801\u3002\u5f3a\u70c8\u5efa\u8bae\u4ec5\u5728\u5185\u7f51\u4f7f\u7528，\u6216\u5347\u7ea7\u4e3a FTPS\/SFTP\u3002<\/p>\n FTP \u6709\u4e24\u79cd\u5de5\u4f5c\u6a21\u5f0f：\u4e3b\u52a8\u6a21\u5f0f（Active）\u548c\u88ab\u52a8\u6a21\u5f0f（Passive）\u3002\u7406\u89e3\u5b83\u4eec\u5bf9\u9632\u706b\u5899\u914d\u7f6e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n Server<\/p>\n Client<\/p>\n Server<\/p>\n Client<\/p>\n #mermaid-svg-6Kt1BBtWPwHADfkv{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-6Kt1BBtWPwHADfkv .error-icon{fill:#552222;}#mermaid-svg-6Kt1BBtWPwHADfkv .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-6Kt1BBtWPwHADfkv .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-6Kt1BBtWPwHADfkv .marker{fill:#333333;stroke:#333333;}#mermaid-svg-6Kt1BBtWPwHADfkv .marker.cross{stroke:#333333;}#mermaid-svg-6Kt1BBtWPwHADfkv svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-6Kt1BBtWPwHADfkv p{margin:0;}#mermaid-svg-6Kt1BBtWPwHADfkv .actor{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-6Kt1BBtWPwHADfkv text.actor>tspan{fill:black;stroke:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .actor-line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-6Kt1BBtWPwHADfkv .innerArc{stroke-width:1.5;stroke-dasharray:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333;}#mermaid-svg-6Kt1BBtWPwHADfkv .messageLine1{stroke-width:1.5;stroke-dasharray:2,2;stroke:#333;}#mermaid-svg-6Kt1BBtWPwHADfkv #arrowhead path{fill:#333;stroke:#333;}#mermaid-svg-6Kt1BBtWPwHADfkv .sequenceNumber{fill:white;}#mermaid-svg-6Kt1BBtWPwHADfkv #sequencenumber{fill:#333;}#mermaid-svg-6Kt1BBtWPwHADfkv #crosshead path{fill:#333;stroke:#333;}#mermaid-svg-6Kt1BBtWPwHADfkv .messageText{fill:#333;stroke:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .labelBox{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-6Kt1BBtWPwHADfkv .labelText,#mermaid-svg-6Kt1BBtWPwHADfkv .labelText>tspan{fill:black;stroke:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .loopText,#mermaid-svg-6Kt1BBtWPwHADfkv .loopText>tspan{fill:black;stroke:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .loopLine{stroke-width:2px;stroke-dasharray:2,2;stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-6Kt1BBtWPwHADfkv .note{stroke:#aaaa33;fill:#fff5ad;}#mermaid-svg-6Kt1BBtWPwHADfkv .noteText,#mermaid-svg-6Kt1BBtWPwHADfkv .noteText>tspan{fill:black;stroke:none;}#mermaid-svg-6Kt1BBtWPwHADfkv .activation0{fill:#f4f4f4;stroke:#666;}#mermaid-svg-6Kt1BBtWPwHADfkv .activation1{fill:#f4f4f4;stroke:#666;}#mermaid-svg-6Kt1BBtWPwHADfkv .activation2{fill:#f4f4f4;stroke:#666;}#mermaid-svg-6Kt1BBtWPwHADfkv .actorPopupMenu{position:absolute;}#mermaid-svg-6Kt1BBtWPwHADfkv .actorPopupMenuPanel{position:absolute;fill:#ECECFF;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-6Kt1BBtWPwHADfkv .actor-man line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-6Kt1BBtWPwHADfkv .actor-man circle,#mermaid-svg-6Kt1BBtWPwHADfkv line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;stroke-width:2px;}#mermaid-svg-6Kt1BBtWPwHADfkv :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n \u4e3b\u52a8\u6a21\u5f0f (PORT)<\/p>\n \u88ab\u52a8\u6a21\u5f0f (PASV)<\/p>\n \u767b\u5f55\u8bf7\u6c42 (\u7aef\u53e321)<\/p>\n 220 OK<\/p>\n USER username<\/p>\n 331 Password required<\/p>\n PASS password<\/p>\n 230 Login successful<\/p>\n PORT 192,168,1,100,12,34 (\u544a\u77e5\u670d\u52a1\u5668\u8fde\u63a5\u54ea\u4e2a\u7aef\u53e3)<\/p>\n \u4ece\u7aef\u53e320\u4e3b\u52a8\u8fde\u63a5\u5ba2\u6237\u7aef\u6570\u636e\u7aef\u53e3(3074)<\/p>\n \u53d1\u9001\u6587\u4ef6\u6570\u636e<\/p>\n 226 Transfer complete<\/p>\n \u767b\u5f55\u8bf7\u6c42 (\u7aef\u53e321)<\/p>\n 220 OK<\/p>\n USER username<\/p>\n 331 Password required<\/p>\n PASS password<\/p>\n 230 Login successful<\/p>\n PASV<\/p>\n 227 Entering Passive Mode (192,168,1,200,192,1)<\/p>\n \u8fde\u63a5\u670d\u52a1\u5668\u6307\u5b9a\u7684\u6570\u636e\u7aef\u53e3 (49152~65534)<\/p>\n \u53d1\u9001\u6587\u4ef6\u6570\u636e<\/p>\n 226 Transfer complete<\/p>\n 📈 \u56fe\u8868\u89e3\u8bfb：<\/p>\n \u73b0\u5728\u8fdb\u5165\u91cd\u5934\u620f \u2014\u2014 \u7528 Java \u7f16\u5199 FTP \u5ba2\u6237\u7aef\u7a0b\u5e8f，\u5b9e\u73b0\u81ea\u52a8\u4e0a\u4f20\u3001\u4e0b\u8f7d\u3001\u5217\u51fa\u76ee\u5f55\u7b49\u529f\u80fd\u3002<\/p>\n \u5728\u4f60\u7684 pom.xml \u4e2d\u52a0\u5165：<\/p>\n <<\/span>dependency<\/span>><\/span><\/span> \u5982\u679c\u4f60\u4f7f\u7528 Gradle：<\/p>\n implementation 'commons-net:commons-net:3.9.0'<\/p>\n 📘 Apache Commons Net \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u7f51\u7edc\u534f\u8bae\u5e93，\u652f\u6301 FTP\u3001SMTP\u3001POP3\u3001Telnet \u7b49\u591a\u79cd\u534f\u8bae\u3002\u5b98\u65b9\u6587\u6863\u8be6\u89c1：Apache Commons Net<\/p>\n \u4e0b\u9762\u662f\u4e00\u4e2a\u5b8c\u6574\u7684 Java \u7c7b，\u5c01\u88c5\u4e86 FTP \u8fde\u63a5\u3001\u4e0a\u4f20\u3001\u4e0b\u8f7d\u3001\u65ad\u5f00\u7b49\u64cd\u4f5c\u3002<\/p>\n import<\/span> org.<\/span>apache.<\/span>commons.<\/span>net.<\/span>ftp.<\/span><\/span>FTP<\/span><\/span>;<\/span> import<\/span> java.<\/span>io.<\/span><\/span>*<\/span><\/span>;<\/span> public<\/span> class<\/span> FTPUploader<\/span> {<\/span><\/p>\n private<\/span> String<\/span> server;<\/span> public<\/span> FTPUploader<\/span>(<\/span>String<\/span> server,<\/span> int<\/span> port,<\/span> String<\/span> username,<\/span> String<\/span> password)<\/span> {<\/span> \/**
\nsudo<\/span> apt<\/span> install<\/span> vsftpd -y<\/span><\/p>\n
\n# \u6216\u8005\u5728\u8f83\u65b0\u7248\u672c\u4e2d：<\/span>
\nsudo<\/span> dnf install<\/span> vsftpd -y<\/span><\/p>\n
\nsudo<\/span> systemctl enable<\/span> vsftpd
\nsudo<\/span> systemctl status vsftpd<\/p>\n
\n Loaded: loaded (\/lib\/systemd\/system\/vsftpd.service; enabled; vendor preset: enabled)
\n Active: active (running) since Mon 2024-06-17 10:00:00 UTC; 5s ago<\/p>\n
\n🔐 \u914d\u7f6e vsftpd \u2014\u2014 \u5b89\u5168\u7b2c\u4e00！<\/h3>\n
\u63a8\u8350\u914d\u7f6e\u5185\u5bb9\u5982\u4e0b：<\/h4>\n
\nanonymous_enable=NO<\/p>\n
\nlocal_enable=YES<\/p>\n
\nwrite_enable=YES<\/p>\n
\nchroot_local_user=YES<\/p>\n
\nallow_writeable_chroot=YES<\/p>\n
\npasv_enable=YES
\npasv_min_port=49152
\npasv_max_port=65534<\/p>\n
\nxferlog_enable=YES
\nxferlog_file=\/var\/log\/vsftpd.log
\nxferlog_std_format=YES<\/p>\n
\nidle_session_timeout=600
\ndata_connection_timeout=120<\/p>\n
\nmax_clients=50
\nmax_per_ip=5<\/p>\n
\n# userlist_enable=YES
\n# userlist_file=\/etc\/vsftpd.userlist
\n# userlist_deny=YES<\/p>\n
\nutf8_filesystem=YES<\/p>\n
\n👤 \u521b\u5efa\u4e13\u7528 FTP \u7528\u6237<\/h3>\n
\nsudo<\/span> chown<\/span> ftpuser:ftpuser \/home\/ftpuser\/uploads
\nsudo<\/span> chmod<\/span> 755<\/span> \/home\/ftpuser<\/p>\n\n
\n🔥 \u9632\u706b\u5899\u914d\u7f6e<\/h3>\n
Ubuntu:<\/h4>\n
\nsudo<\/span> ufw allow 21<\/span>\/tcp
\nsudo<\/span> ufw allow 49152<\/span>:65534\/tcp
\nsudo<\/span> ufw reload<\/p>\nCentOS:<\/h4>\n
\nsudo<\/span> firewall-cmd –permanent<\/span> –add-port=<\/span>49152<\/span>-65534\/tcp
\nsudo<\/span> firewall-cmd –reload<\/span><\/p>\n
\n🧪 \u6d4b\u8bd5 FTP \u8fde\u63a5<\/h3>\n
\u4f7f\u7528\u547d\u4ee4\u884c\u6d4b\u8bd5：<\/h4>\n
\n220 (vsFTPd 3.0.3)
\nName (localhost:yourname): ftpuser
\n331 Please specify the password.
\nPassword:
\n230 Login successful.
\nRemote system type is UNIX.
\nUsing binary mode to transfer files.
\nftp><\/p>\n
\nftp><\/span> put test.txt
\nftp><\/span> ls<\/span>
\nftp><\/span> quit<\/p>\n
\n🌐 \u5916\u7f51\u8bbf\u95ee\u6ce8\u610f\u4e8b\u9879<\/h3>\n
\n📊 FTP \u5de5\u4f5c\u6a21\u5f0f\u56fe\u89e3<\/h3>\n
\n
\n💻 Java \u5b9e\u73b0 FTP \u5ba2\u6237\u7aef \u2014\u2014 Apache Commons Net<\/h3>\n
\u7b2c\u4e00\u6b65：\u6dfb\u52a0 Maven \u4f9d\u8d56<\/h4>\n
\n <<\/span>groupId<\/span>><\/span><\/span>commons-net<\/<\/span>groupId<\/span>><\/span><\/span>
\n <<\/span>artifactId<\/span>><\/span><\/span>commons-net<\/<\/span>artifactId<\/span>><\/span><\/span>
\n <<\/span>version<\/span>><\/span><\/span>3.9.0<\/<\/span>version<\/span>><\/span><\/span>
\n<\/<\/span>dependency<\/span>><\/span><\/span><\/p>\n
\n🧑\u200d💻 Java \u4ee3\u7801\u5b9e\u6218 \u2014\u2014 \u57fa\u7840\u4e0a\u4f20\u4e0b\u8f7d<\/h3>\n
\nimport<\/span> org.<\/span>apache.<\/span>commons.<\/span>net.<\/span>ftp.<\/span><\/span>FTPClient<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>apache.<\/span>commons.<\/span>net.<\/span>ftp.<\/span><\/span>FTPFile<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>apache.<\/span>commons.<\/span>net.<\/span>ftp.<\/span><\/span>FTPReply<\/span><\/span>;<\/span><\/p>\n
\nimport<\/span> java.<\/span>nio.<\/span>charset.<\/span><\/span>StandardCharsets<\/span><\/span>;<\/span><\/p>\n
\n private<\/span> int<\/span> port;<\/span>
\n private<\/span> String<\/span> username;<\/span>
\n private<\/span> String<\/span> password;<\/span>
\n private<\/span> FTPClient<\/span> ftpClient;<\/span><\/p>\n
\n this<\/span>.<\/span>server =<\/span> server;<\/span>
\n this<\/span>.<\/span>port =<\/span> port;<\/span>
\n this<\/span>.<\/span>username =<\/span> username;<\/span>
\n this<\/span>.<\/span>password =<\/span> password;<\/span>
\n this<\/span>.<\/span>ftpClient =<\/span> new<\/span> FTPClient<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n
\n * \u8fde\u63a5\u5230 FTP \u670d\u52a1\u5668
\n *\/<\/span>
\n public<\/span> boolean<\/span> connect<\/span>(<\/span>