AIWORK软件FTP完整例子自动链接可以上传可以下载
<p></p><div><br></div><div><table cellspacing="0" cellpadding="0" style="table-layout: fixed; width: 979px; font-size: 12px;"><tbody><tr><td class="t_f" id="postmessage_333" style="font-size: 14px; line-height: 24px;"><ignore_js_op></ignore_js_op><div><ignore_js_op></ignore_js_op><div><ignore_js_op></ignore_js_op><p></p></div></div><div><br></div><div><pre style="overflow-wrap: normal; box-sizing: border-box; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 12px; line-height: 1.6; font-family: "YaHei Consolas Hybrid", Consolas, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Helvetica, monospace, monospace; margin-bottom: 1.5em; padding: 1em; overflow: auto; background: rgb(56, 69, 72); border-radius: 4px; border: 1px solid rgb(221, 221, 221); position: relative; color: rgb(209, 210, 210);"><code class="hljs go" style="overflow-wrap: normal; box-sizing: border-box; background: 0px 0px transparent; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; border-radius: 3px; border: 0px; word-break: normal; display: block; max-width: none; overflow-x: auto; overflow-y: initial; line-height: inherit;"><span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">/*欢迎使用AiWork安卓自动化IDE
帮助文档: <a href="http://help.autoapp.net.cn/" target="_blank" style="color: rgb(24, 130, 216); text-decoration-line: none; transition: color 0.08s ease-out 0s;">http://help.autoapp.net.cn</a>
官方地址: <a href="http://www.aiwork24.com/" target="_blank" style="color: rgb(24, 130, 216); text-decoration-line: none; transition: color 0.08s ease-out 0s;">www.aiwork24.com</a>
qq群: 743723025
*/</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 加载FTP库</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 通过rhino.loadDex方法加载名为"ftp.dex"的Java库文件，该文件包含了用于FTP操作的类</span>
rhino.loadDex(project.getResourcesPath() + <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"ftp.dex"</span>);
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 导入所需的FTP操作类和Java IO包</span>
importClass(org.apache.commons.net.ftp.FTP); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 导入FTP类，用于设置文件传输类型等</span>
importClass(org.apache.commons.net.ftp.FTPClient); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 导入FTPClient类，用于创建和管理FTP客户端</span>
importPackage(java.io); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 导入Java IO包，包含处理文件输入输出的类</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// FTP配置参数</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 定义FTP服务器的地址、端口号、登录用户名和密码，以及本地文件路径和远程文件路径</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> ftpHost = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"154.201.80.249"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// FTP服务器的地址</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> ftpPort = <span class="hljs-number" style="box-sizing: border-box; color: rgb(209, 154, 102);">21</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// FTP服务器的端口号，默认为21</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> username = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"rtyerye"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 登录FTP服务器的用户名</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> password = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"8A66543yy"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 登录FTP服务器的密码</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> remoteUploadDir = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"/"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 远程服务器上文件上传的目标目录</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> localUploadFilePath = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"/storage/emulated/0/auto/A游戏试玩/logo.png"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 本地要上传的文件路径</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> remoteDownloadFile = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"/FTP.rar"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 远程服务器上要下载的文件</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> localDownloadPath = <span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"/storage/emulated/0/auto/A游戏试玩/FTP下载测试.rar"</span>; <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 下载文件后本地保存的路径</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 创建FTP客户端对象</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> ftpClient = <span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> FTPClient();
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 上传文件</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 创建FileInputStream对象以读取本地文件</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> fis = <span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> FileInputStream(<span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> File(localUploadFilePath));
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 连接FTP服务器</span>
ftpClient.connect(ftpHost, ftpPort); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 连接到指定的FTP服务器</span>
ftpClient.setDataTimeout(<span class="hljs-number" style="box-sizing: border-box; color: rgb(209, 154, 102);">10000</span>); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 设置数据传输超时时间为10秒</span>
ftpClient.setConnectTimeout(<span class="hljs-number" style="box-sizing: border-box; color: rgb(209, 154, 102);">10000</span>); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 设置连接超时时间为10秒</span>
ftpClient.login(username, password); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 使用指定的用户名和密码登录FTP服务器</span>
ftpClient.setFileType(FTP.BINARY_FILE_TYPE); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 设置文件传输类型为二进制文件类型</span>
ftpClient.enterLocalPassiveMode(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 设置客户端工作模式为被动模式，适用于防火墙环境</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 上传文件到远程服务器</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 将本地文件上传到远程服务器的指定目录</span>
ftpClient.storeFile(remoteUploadDir + <span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> File(localUploadFilePath).getName(), fis);
printl(<span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"文件上传成功："</span> + remoteUploadDir + <span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> File(localUploadFilePath).getName()); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 输出上传成功的消息</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 关闭上传文件流</span>
fis.<span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">close</span>(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 关闭FileInputStream，释放资源</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 登出并断开FTP连接</span>
ftpClient.logout(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 登出FTP服务器</span>
ftpClient.disconnect(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 断开与FTP服务器的连接</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 下载文件</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 创建FileOutputStream对象以写入本地文件</span>
<span class="hljs-keyword" style="box-sizing: border-box; color: rgb(198, 120, 221);">var</span> outputStream = <span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> FileOutputStream(<span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">new</span> File(localDownloadPath));
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 重新连接FTP服务器</span>
ftpClient.connect(ftpHost, ftpPort); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 再次连接到FTP服务器</span>
ftpClient.login(username, password); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 使用相同的用户名和密码登录</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 设置编码以解决中文乱码问题</span>
ftpClient.setControlEncoding(<span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"GB2312"</span>); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 设置FTP控制编码为GB2312，防止中文文件名乱码</span>
ftpClient.setFileType(FTP.BINARY_FILE_TYPE); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 再次设置文件传输类型为二进制文件类型</span>
ftpClient.enterLocalPassiveMode(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 再次设置被动模式</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 切换到远程文件所在的目录</span>
ftpClient.changeWorkingDirectory(<span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"/"</span>); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 切换到远程服务器的根目录</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 从FTP服务器下载文件到本地</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 使用retrieveFile方法从远程服务器下载文件到本地指定路径</span>
ftpClient.retrieveFile(remoteDownloadFile, outputStream);
printl(<span class="hljs-string" style="box-sizing: border-box; color: rgb(152, 195, 121);">"下载成功！保存到："</span> + localDownloadPath); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 输出下载成功的消息</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 关闭下载文件流</span>
outputStream.<span class="hljs-built_in" style="box-sizing: border-box; color: rgb(230, 192, 123);">close</span>(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 关闭FileOutputStream，释放资源</span>
<span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 登出并断开FTP连接</span>
ftpClient.logout(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 登出FTP服务器</span>
ftpClient.disconnect(); <span class="hljs-comment" style="box-sizing: border-box; color: rgb(170, 170, 170); font-style: italic;">// 断开与FTP服务器的连接</span>
</code></pre><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">代码通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">rhino.loadDex</code>函数加载了一个名为<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">ftp.dex</code>的库文件。这个文件包含了Apache Commons Net库中用于FTP操作的相关类。Apache Commons Net是一个开源的Java库，提供了与各种网络协议进行交互的类，其中就包括FTP协议。</p><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">接着，代码通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">importClass</code>和<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">importPackage</code>语句导入了FTP操作所需的一些Java类和包，比如<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FTP</code>、<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FTPClient</code>、<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FileInputStream</code>、<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">File</code>、<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FileOutputStream</code>等。这些类和包分别用于创建FTP客户端、处理文件流、以及进行文件的读写操作。</p><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">然后，定义了一些FTP服务器的配置参数，包括FTP服务器的地址、端口号、登录用户名和密码，以及本地文件路径和远程文件路径。这些参数是进行FTP操作的基础信息。</p><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">代码创建了一个<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FTPClient</code>对象，并通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">connect</code>方法连接到FTP服务器。设置了数据传输超时时间和连接超时时间，以确保在网络状况不佳的情况下，脚本不会无限期地等待。接着通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">login</code>方法登录到FTP服务器，并设置了文件类型为二进制文件类型，这对于上传和下载二进制文件（如图片、压缩文件等）是非常必要的。<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">enterLocalPassiveMode</code>方法用于设置FTP客户端的工作模式为被动模式，这对于通过防火墙进行FTP操作通常是必需的。</p><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">完成连接和登录后，代码通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">storeFile</code>方法将本地文件上传到FTP服务器。这里，<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FileInputStream</code>被用来读取本地文件，然后通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">storeFile</code>方法将文件内容上传到指定的远程目录。上传完成后，使用<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">printl</code>函数输出一条成功信息。</p><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">上传完成后，关闭了<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FileInputStream</code>，并登出FTP服务器，断开连接。接着，为了下载文件，再次创建了一个<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FileOutputStream</code>对象用于写入本地文件，然后重新连接并登录到FTP服务器。</p><p style="margin-bottom: 1.5em; box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">为了防止中文乱码，设置了FTP控制编码为<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">GB2312</code>，并再次设置了文件类型为二进制文件类型以及被动工作模式。然后通过<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">changeWorkingDirectory</code>方法切换到远程文件所在目录，使用<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">retrieveFile</code>方法下载文件到本地指定路径。下载完成后，同样使用<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">printl</code>输出成功信息，并关闭了<code style="box-sizing: border-box; font-family: Consolas, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace; padding: 3px; margin-right: 4px; margin-left: 5px; background: rgb(249, 249, 249); border-radius: 3px; border: 1px solid rgb(221, 221, 221); color: rgb(64, 158, 255);">FileOutputStream</code>。http://bbs.aiwork24.com/thread-130-1-1.html </p><p style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: "Microsoft YaHei", Helvetica, "Meiryo UI", "Malgun Gothic", "Segoe UI", "Trebuchet MS", Monaco, monospace, Tahoma, STXihei, 华文细黑, STHeiti, "Helvetica Neue", "Droid Sans", "wenquanyi micro hei", FreeSans, Arimo, Arial, SimSun, 宋体, Heiti, 黑体, sans-serif;">最后，再次登出FTP服务器，并断开连接，完成了整个FTP上传和下载的操作流程。</p></div></td></tr></tbody></table></div>
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