//文件发送逻辑 File directory = new File("H:/XiyuanLiQ04547"); if (!directory.exists() || !directory.isDirectory()) { throw new RuntimeException("指定目录不存在: " + directory.getAbsolutePath()); } // 计算当日时间范围 LocalDate today = LocalDate.now(); long startOfDay = today.atStartOfDay(ZoneId.systemDefault()).toInstant().toEpochMilli(); long endOfDay = today.plusDays(1).atStartOfDay(ZoneId.systemDefault()).toInstant().toEpochMilli() - 1; List<File> successfullySentFiles = new ArrayList<>(); // 过滤并获取当日文件列表 File[] dailyFiles = directory.listFiles(file -> file.isFile() && file.lastModified() >= startOfDay && file.lastModified() <= endOfDay ); if (dailyFiles == null || dailyFiles.length == 0) { throw new RuntimeException("没有找到当日文件"); } //向群组中发送文件 DefaultWeLinkClient client = new DefaultWeLinkClient("https://open.welink.huaweicloud.com/api/welinkim/v1/im-service/chat/group-chat"); System.out.printf("发现%d个待发送文件%n", dailyFiles.length); for (File file : dailyFiles) { try { WelinkIMV1ImServiceChatGroupChatRequest req = new WelinkIMV1ImServiceChatGroupChatRequest(); req.setAccessToken(rsp.getAccessToken()); req.setFile(file); WelinkIMV1ImServiceChatGroupChatRequest.AppServiceInfo appServiceInfo = new WelinkIMV1ImServiceChatGroupChatRequest.AppServiceInfo(); appServiceInfo.setAppServiceId("20250305170838530878252"); appServiceInfo.setAppServiceName("test"); req.setAppServiceInfo(appServiceInfo); req.setAppMsgId(UUID.randomUUID().toString()); //消息标识，全局唯一，建议使用UUID List<String> reqGroupIdList = new ArrayList<>(); reqGroupIdList.add("809116105791513606"); req.setGroupId(reqGroupIdList); req.setIsPush(true); req.setClientAppId("1"); req.setContentType(4);// 根据消息内容类型填写对应值 WelinkIMV1ImServiceChatGroupChatResponse msgResponse = client.uploadAndSend(req); // System.out.printf("文件【%s】发送成功，消息ID: %s%n", // file.getName(), msgResponse.getMessageId()); successfullySentFiles.add(file); } catch (Exception e) { System.err.printf("!! 文件【%s】发送失败: %s%n", file.getName(), e.getMessage()); e.printStackTrace(); } }这段代码只能发送当日文件夹内文件，但不能发送文件夹内文件夹的文件

//向群组中发送文件 DefaultWeLinkClient client = new DefaultWeLinkClient("https://open.welink.huaweicloud.com/api/welinkim/v1/im-service/chat/group-chat"); WelinkIMV1ImServiceChatGroupChatRequest req = new WelinkIMV1ImServiceChatGroupChatRequest(); req.setAccessToken(rsp.getAccessToken()); File directory = new File("H:/XiyuanLiQ04547"); if (!directory.exists() || !directory.isDirectory()) { throw new RuntimeException("指定目录不存在: " + directory.getAbsolutePath()); } File newestFile = Arrays.stream(Objects.requireNonNull(directory.listFiles())) .filter(File::isFile) // 过滤掉子目录 .max(Comparator.comparingLong(File::lastModified)) .orElseThrow(() -> new RuntimeException("目录中没有文件")); req.setFile(newestFile); 修改为遍历群组内所有当日数据并发送

File directory = new File("H:/XiyuanLiQ04547"); File[] dailyFiles = directory.listFiles(file -> file.isFile() && file.lastModified() >= startOfDay && file.lastModified() <= endOfDay ); **...

File directory = new File("H:/XiyuanLiQ04547"); if (!directory.exists() || !directory.isDirectory()) { throw new RuntimeException("指定目录不存在: " + directory.getAbsolutePath()); } File newestFile = Arrays.stream(Objects.requireNonNull(directory.listFiles())) .filter(File::isFile) // 过滤掉子目录 .max(Comparator.comparingLong(File::lastModified)) .orElseThrow(() -> new RuntimeException("目录中没有文件")); req.setFile(newestFile); 修改为输出所有当天的文件

File directory = new File("H:/XiyuanLiQ04547"); if (!directory.exists() || !directory.isDirectory()) { throw new RuntimeException("指定目录不存在: " + directory.getAbsolutePath()); } LocalDate today...

以下代码存在读取文件乱码的情况请给与优化 public static void main(String[] args) { String sourceDirectory = "D:\Java\pas\trunk-5.X+\D05源代码\后台\达梦"; String destinationFile = "D:\Java\project\demo\src\main\resources\dm-init.sql"; try { // 创建输出文件，如果文件不存在则自动创建 File file = new File(destinationFile); if (!file.exists()) { file.createNewFile(); } // 打开输出流 FileWriter fw = new FileWriter(file.getAbsoluteFile(), true); BufferedWriter bw = new BufferedWriter(fw); // 递归读取源目录中的文件，并将其写入输出文件 readAndWriteFiles(sourceDirectory, bw); // 关闭输出流 bw.close(); System.out.println("文件已写入 " + destinationFile); } catch (IOException e) { e.printStackTrace(); } } private static void readAndWriteFiles(String sourceDirectory, BufferedWriter writer) throws IOException { // 创建目录文件对象 File directory = new File(sourceDirectory); // 检查目录是否存在并且是一个目录 if (!directory.exists() || !directory.isDirectory()) { throw new FileNotFoundException("目录不存在: " + sourceDirectory); } // 列出该目录下的所有文件和子目录，包括隐藏文件 File[] files = directory.listFiles(new FileFilter() { @Override public boolean accept(File pathname) { return pathname.isFile() && (pathname.getName().endsWith(".sql") || pathname.getName().endsWith(".txt")); } }); // 遍历文件列表 for (File file : files) { // 读取文件内容并写入输出文件 BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "GBK")); String line = null; while ((line = br.readLine()) != null) { writer.write(line); writer.newLine(); } br.close(); } // 遍历目录中的子目录并递归读取 File[] subDirectories = directory.listFiles(new FileFilter() { @Override public boolean accept(File pathname) { return pathname.isDirectory() && !pathname.isHidden(); } }); for (File subDirectory : subDirectories) { readAndWriteFiles(subDirectory.getAbsolutePath(), writer); } }

File directory = new File(sourceDirectory); // 检查目录是否存在并且是一个目录 if (!directory.exists() || !directory.isDirectory()) { throw new FileNotFoundException("目录不存在: " + source...

/** * shopee上传图片 * * @param pictureUrl * @param accessToken * @param platformShopId * @param countryId * @return */ private String shopeeUploadImage(String pictureUrl, String accessToken, Long platformShopId, String countryId) { byte[] imageBytes; try { imageBytes = HttpUtil.downloadBytes(pictureUrl); if (imageBytes == null || imageBytes.length == 0) { throw new RuntimeException("下载的图片为空或失败：" + pictureUrl); } } catch (Exception e) { throw new RuntimeException("下载图片失败：" + e.getMessage(), e); } File tempFile = null; try { // 1. 直接用 /var/tmp 作为存储路径 String baseDir = "/var/tmp/shopee_temp/"; File baseDirectory = new File(baseDir); if (!baseDirectory.exists() && !baseDirectory.mkdirs()) { throw new RuntimeException("创建临时目录失败: " + baseDir); } // 2. 生成唯一文件 tempFile = new File(baseDir, "temp_image_" + UUID.randomUUID() + ".jpg"); log.info("临时文件路径: {}", tempFile.getAbsolutePath()); // 3. 确保文件落盘 try (FileOutputStream fos = new FileOutputStream(tempFile); FileChannel fc = fos.getChannel()) { fos.write(imageBytes); fos.flush(); fc.force(true); } if (!tempFile.exists() || tempFile.length() == 0) { throw new RuntimeException("创建临时文件失败或文件为空"); } // 4. 传给 Feign ShopeeUploadImageRequest uploadImageRequest = new ShopeeUploadImageRequest(); uploadImageRequest.setAccessToken(accessToken); uploadImageRequest.setPlatformShopId(platformShopId); uploadImageRequest.setCountryId(countryId); uploadImageRequest.setImage(tempFile); Result<ShopeeUploadImageResponse> result = platformOpenFeignService.shopee

return new SpringFormEncoder(new SpringEncoder(new ObjectFactory() { @Override public Object getObject() { return new HttpMessageConverters(); } })); } @Bean public ...

public static void copy(File file, File toFile) throws Exception { String s = toFile.getAbsolutePath().replaceAll("\\\\", "/"); int i = s.lastIndexOf("/"); String filePath = s.substring(0,i); File fileDirectory = new File(filePath); //新建文件夹 if(!fileDirectory.exists()){ fileDirectory.mkdirs(); } byte[] b = new byte[1024]; int a; FileInputStream fis; FileOutputStream fos; //写文件 fis = new FileInputStream(file); fos = new FileOutputStream(toFile); while ((a = fis.read(b)) != -1) { fos.write(b, 0, a); } } 此方法提示拒绝访问，是为什么

1. 权限不足：在执行文件复制操作时，可能当前用户没有足够的权限来读取或写入文件。你可以检查一下文件的权限设置，确保当前用户具有读取和写入文件的权限。 2. 文件被占用：如果文件正在被其他程序或进程使用，你...

using System; using System.IO; using System.Linq; using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Mvc; namespace FileUpload.Controllers { [ApiController] public class UploadController : ControllerBase { private const int ChunkSize = 1024 * 1024 * 1; // 每个分片的大小，这里设为1MB private const string UploadPath = "uploads"; // 文件上传目录 private static string _filePath; // 完整的文件路径 [HttpPost("/upload/start")] public ActionResult StartUpload(IFormFile file) { if (file == null || file.Length <= 0) { return BadRequest("请选择要上传的文件"); } // 生成文件名 string fileName = file.FileName; string fileExt = Path.GetExtension(fileName); string newFileName = Guid.NewGuid().ToString("N") + fileExt; // 生成文件存储目录 string dirPath = Path.Combine(Directory.GetCurrentDirectory(), UploadPath); if (!Directory.Exists(dirPath)) { Directory.CreateDirectory(dirPath); } // 生成文件路径 _filePath = Path.Combine(dirPath, newFileName); // 返回上传开始的响应 return Ok(new { FileName = newFileName, ChunkSize, }); } [HttpPost("/upload/append")] public ActionResult AppendUpload(string fileName, int chunkIndex, int chunks, IFormFile chunk) { byte[] buffer = new byte[ChunkSize]; int bytesRead = 0; int start = chunkIndex * ChunkSize; // 分片开始位置 int end = Math.Min(start + ChunkSize, (int)chunk.Length); // 分片结束位置 using (Stream stream = chunk.OpenReadStream()) { using (FileStream fileStream = new FileStream(_filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.Write)) { fileStream.Position = start; while ((bytesRead = stream.Read(buffer, 0, Math.Min(buffer.Length, end - start))) > 0) { fileStream.Write(buffer, 0, bytesRead); start += bytesRead; } fileStream.Flush(true); } } // 检查是否所有分片都上传成功 int[] uploadedChunks = Directory.GetFiles(Path.GetDirectoryName(_filePath), $"{Path.GetFileName(_filePath)}_*").Select(filepath => int.Parse(filepath.Split('_')[1])).ToArray(); if (uploadedChunks.Length == chunks) { // 合并分片 using (FileStream fileStream = new FileStream(_filePath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.Write)) { foreach (int index in uploadedChunks.OrderBy(i => i)) { string chunkPath = $"{_filePath}_{index}"; using (FileStream chunkStream = new FileStream(chunkPath, FileMode.Open, FileAccess.Read, FileShare.Read)) { chunkStream.CopyTo(fileStream); } System.IO.File.Delete(chunkPath); // 删除已合并的分片 } fileStream.Flush(true); } } return Ok(); } } }

这段代码是一个用于文件上传的 ASP.NET Core 控制器，包含两个 POST 方法：StartUpload 和 AppendUpload。StartUpload 方法接收一个 IFormFile 对象，用于启动文件上传并返回文件名和每个分片的大小。AppendUpload ...

//复制目录 public static void copyDirectory(File in, File out){ //判断目标目录是否存在 if (!out.exists()) { //目标目录不存在，创建此目录 out.mkdir(); } //获取目标目录绝对路径 String path = out.getPath(); //获取源目录下的所有目录、文件，并遍历 File[] inFiles = in.listFiles(); for (File file : inFiles) { //更改目标路径 out = new File(path, file.getName()); //判断file是否为目录， //如果是目录则复制此目录，如果不是则复制此文件 if (file.isDirectory()) { copyDirectory(file, out); } else { copyFile(file, out); } } }

这是一个 Java 代码片段，函数名为copyDirectory，实现的功能是复制一个目录及其子目录和文件到另一个目录中。该函数接受两个参数，一个是源目录in，一个是目标目录out。函数先判断目标目录是否存在，如果不存在则...

if (Initialize.myLightAndColor.ROIDataList != "1") { //this.Invoke( new Action(() => // { Initialize.ShowFile(AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "regionInfo"); string dirpath = new DirectoryInfo(Initialize.myLightAndColor.ROIDataList).Name; string temppath = Initialize.myLightAndColor.ROIDataList.Substring(0, Initialize.myLightAndColor.ROIDataList.Length - dirpath.Length - 2); if (Directory.Exists(temppath)) { if (File.Exists(Initialize.myLightAndColor.ROIDataList)) { FileStream fs = new FileStream(Initialize.myLightAndColor.ROIDataList, FileMode.Create); BinaryFormatter bf = new BinaryFormatter(); bf.Serialize(fs, halconSetOperation.rOIAndLimitDataList); fs.Close(); } } else { Directory.CreateDirectory(temppath); FileStream fs = new FileStream(Initialize.myLightAndColor.ROIDataList, FileMode.Create); BinaryFormatter bf = new BinaryFormatter(); bf.Serialize(fs, halconSetOperation.rOIAndLimitDataList); fs.Close(); } // Initialize.HiddenFile(AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "regionInfo"); List<double> lightList = new List<double>(); List<bool> lightResultList = new List<bool>(); if (this.comboBox1.SelectedItem.ToString() == "亮") { Initialize.myLightAndColor.lightCheckState = LightOrDown.亮; } else { Initialize.myLightAndColor.lightCheckState = LightOrDown.灭; } // showform.ShowResult("保存成功!"); MessageBox.Show("保存成功!"); GC.Collect(); this.DialogResult = DialogResult.OK; //})); }

这段代码是一个 if 语句，判断 Initialize.myLightAndColor.ROIDataList 是否为字符串 "1"。如果不是，则会执行一系列操作，包括显示指定路径下的文件、创建目录、创建文件流并序列化数据、保存成功提示框等。最后会...

// 实现视频预览功能 private void showVideoPreview(MediaFile mediaFile) { // 获取视频文件的路径 String videoFileName = mediaFile.getFileName(); // 获取文件名 // 获取外置 SD 卡路径 File[] externalStorageVolumes = ContextCompat.getExternalFilesDirs(getApplicationContext(), null); String externalSDCardPath = null; if (externalStorageVolumes != null && externalStorageVolumes.length > 1) { externalSDCardPath = externalStorageVolumes[1].getAbsolutePath(); // 获取外置 SD 卡路径 } String videoPath = externalSDCardPath + "/DCIM/100MEDIA/" + videoFileName; // 构建完整路径 Log.d("VideoPath", "视频文件路径: " + videoPath); // 输出视频路径 // 检查视频文件是否存在 File videoFile = new File(videoPath); if (!videoFile.exists()) { showToast("视频文件不存在: " + videoPath); return; } // 创建一个新的 Intent 启动 VideoPlayerActivity Intent intent = new Intent(media.this, VideoPlayerActivity.class); intent.putExtra("VIDEO_PATH", videoPath); // 将视频路径传递给 VideoPlayerActivity startActivity(intent); // 启动 VideoPlayerActivity } 为什么路径不对

此外，媒体文件扫描可能需要发送广播通知系统更新媒体库，以便MediaFile能够检测到新文件。最后，检查VideoPlayerActivity中的路径处理，避免硬编码，使用相对路径或正确获取的绝对路径。在代码示例部分，需要展示...

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.IO; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms; using Microsoft.Win32; using Shell32; using static System.Windows.Forms.VisualStyles.VisualStyleElement; namespace WindowsFormsApp7 { public partial class Form2 : Form { private List<FileInfo> filesToClean = new List<FileInfo>(); private long totalSize = 0; private long processedSize = 0; private int processedFiles = 0; private readonly HashSet<string> _systemFileExtensions = new HashSet<string>(StringComparer.OrdinalIgnoreCase) { ".ini", ".config", ".sys", ".dll", ".drv", ".ocx", ".cpl", ".bak", ".wxapkg", ".dmp", ".tmp", ".log", ".bat", ".cmd", ".reg", ".vxd", ".crc", ".json", ".dat", ".db", ".mmkv", ".data",".exe",".mui", ".xml",".etl",".bakdb",".diagsession", ".lnk", ".url" }; private CancellationTokenSource cancellationTokenSource; private const int MaxDegreeOfParallelism = 4; // 可自行设置线程数 private long releasedMemorys; public Form2() { InitializeComponent(); InitializeListView(); } private void InitializeListView() { listView1.View = View.Details; listView1.CheckBoxes = true; listView1.Columns.Add("文件名", 150); listView1.Columns.Add("分类", 100); listView1.Columns.Add("文件大小(MB)", 100); listView1.Columns.Add("文件路径", 300); } // 浏览器缓存清理 private void ClearBrowserCache() { string[] browsers = { Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Google", "Chrome", "User Data", "Default", "Cache"), Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Mozilla", "Firefox", "Profiles"), Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Microsoft", "Edge", "User Data", "Default", "Cache") }; foreach (string path in browsers) { if (Directory.Exists(path)) { try { Directory.Delete(path, true); } catch (Exception ex) { MessageBox.Show($"清理浏览器缓存失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } } // Windows更新清理 private void ClearWindowsUpdates() { string updateFolder = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), "SoftwareDistribution", "Download"); if (Directory.Exists(updateFolder)) { try { Directory.Delete(updateFolder, true); } catch (Exception ex) { MessageBox.Show($"清理 Windows 更新文件失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } // 日志文件清理 private void ClearLogFiles() { string[] logFolders = { Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), "System32", "winevt", "Logs"), Path.GetTempPath() }; foreach (string folder in logFolders) { if (Directory.Exists(folder)) { try { foreach (string file in Directory.GetFiles(folder, ".log", SearchOption.AllDirectories)) { File.Delete(file); } } catch (Exception ex) { MessageBox.Show($"清理日志文件失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } } // 缩略图缓存清理 private void ClearThumbnailCache() { string thumbnailCache = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Microsoft", "Windows", "Explorer"); if (Directory.Exists(thumbnailCache)) { try { foreach (string file in Directory.GetFiles(thumbnailCache, ".db", SearchOption.AllDirectories)) { File.Delete(file); } } catch (Exception ex) { MessageBox.Show($"清理缩略图缓存失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } // 回收站清理 private void ClearRecycleBin() { try { Shell shell = new Shell(); Folder recycleBin = shell.NameSpace(10); foreach (FolderItem2 item in recycleBin.Items()) { item.InvokeVerb("Delete"); } } catch (Exception ex) { MessageBox.Show($"清理回收站失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } // 大文件查找 private List<FileInfo> FindLargeFiles(long minSize) { List<FileInfo> largeFiles = new List<FileInfo>(); var drives = DriveInfo.GetDrives().Where(d => d.IsReady).ToList(); Parallel.ForEach(drives, new ParallelOptions { MaxDegreeOfParallelism = MaxDegreeOfParallelism }, drive => { try { foreach (FileInfo file in drive.RootDirectory.EnumerateFiles("", SearchOption.AllDirectories)) { if (file.Length > minSize 1024 * 1024 && !_systemFileExtensions.Contains(file.Extension)) { lock (largeFiles) { largeFiles.Add(file); } } } } catch (Exception) { // 忽略异常 } }); return largeFiles; } // 重复文件查找 private List<FileInfo> FindDuplicateFiles() { Dictionary<string, List<FileInfo>> fileGroups = new Dictionary<string, List<FileInfo>>(); var drives = DriveInfo.GetDrives().Where(d => d.IsReady).ToList(); Parallel.ForEach(drives, new ParallelOptions { MaxDegreeOfParallelism = MaxDegreeOfParallelism }, drive => { try { foreach (FileInfo file in drive.RootDirectory.EnumerateFiles("", SearchOption.AllDirectories)) { if (!_systemFileExtensions.Contains(file.Extension)) { string key = file.Length.ToString(); lock (fileGroups) { if (!fileGroups.ContainsKey(key)) { fileGroups[key] = new List<FileInfo>(); } fileGroups[key].Add(file); } } } } catch (Exception) { // 忽略异常 } }); List<FileInfo> duplicateFiles = new List<FileInfo>(); foreach (List<FileInfo> group in fileGroups.Values) { if (group.Count > 1) { duplicateFiles.AddRange(group.Skip(1)); } } return duplicateFiles; } // 注册表清理 private void CleanRegistry() { try { using (RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software", true)) { if (key != null) { key.DeleteSubKeyTree("TestKey", false); // 示例，需替换为实际要清理的键 } } } catch (Exception ex) { MessageBox.Show($"清理注册表失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } // 微信30天以上临时文件清理 private List<FileInfo> FindOldWeChatTempFiles() { List<FileInfo> oldWeChatFiles = new List<FileInfo>(); string weChatTempPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Tencent", "WeChat", "Temp"); if (Directory.Exists(weChatTempPath)) { try { DateTime thirtyDaysAgo = DateTime.Now.AddDays(-30); var files = new DirectoryInfo(weChatTempPath).EnumerateFiles("", SearchOption.AllDirectories); Parallel.ForEach(files, new ParallelOptions { MaxDegreeOfParallelism = MaxDegreeOfParallelism }, file => { if (file.LastWriteTime < thirtyDaysAgo) { lock (oldWeChatFiles) { oldWeChatFiles.Add(file); } } }); } catch (Exception) { // 忽略异常 } } return oldWeChatFiles; } // 系统更新残留文件清理 private List<FileInfo> FindWindowsUpdateResidualFiles() { List<FileInfo> residualFiles = new List<FileInfo>(); string[] updateResidualFolders = { Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), "WinSxS", "Temp"), Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), "Prefetch") }; Parallel.ForEach(updateResidualFolders, new ParallelOptions { MaxDegreeOfParallelism = MaxDegreeOfParallelism }, folder => { if (Directory.Exists(folder)) { try { foreach (FileInfo file in new DirectoryInfo(folder).EnumerateFiles("", SearchOption.AllDirectories)) { lock (residualFiles) { residualFiles.Add(file); } } } catch (Exception) { // 忽略异常 } } }); return residualFiles; } // 扫描文件 private async void ScanFiles() { cancellationTokenSource = new CancellationTokenSource(); try { btnScan.Enabled = false; btnClean.Enabled = false; listView1.Items.Clear(); filesToClean.Clear(); totalSize = 0; await Task.Run(async () => { var tasks = new List<Task>>(); if (checkLargeFiles.Checked) { tasks.Add(Task.Run(() => FindLargeFiles(100))); } if (checkDuplicates.Checked) { tasks.Add(Task.Run(() => FindDuplicateFiles())); } if (checkWeChat.Checked) { tasks.Add(Task.Run(() => FindOldWeChatTempFiles())); } if (checkBrowserCache.Checked) { tasks.Add(Task.Run(() => FindWindowsUpdateResidualFiles())); } var results = await Task.WhenAll(tasks); foreach (var result in results) { filesToClean.AddRange(result); } if (cancellationTokenSource.Token.IsCancellationRequested) { return; } await InvokeOnUiThreadAsync(() => { foreach (FileInfo file in filesToClean) { ListViewItem item = new ListViewItem(file.Name); string category = ""; if (filesToClean.Where(f => f.Length > 100 1024 * 1024).Contains(file)) { category = "大文件"; } else if (filesToClean.Where(f => filesToClean.Count(f2 => f2.Length == f.Length) > 1).Contains(file)) { category = "重复文件"; } else if (file.DirectoryName.Contains("WeChat")) { category = "微信临时文件"; } else if (file.DirectoryName.Contains("WinSxS") || file.DirectoryName.Contains("Prefetch")) { category = "系统更新残留文件"; } item.SubItems.Add(category); item.SubItems.Add((file.Length / (1024.0 * 1024.0)).ToString("F2")); item.SubItems.Add(file.FullName); listView1.Items.Add(item); totalSize += file.Length; } lblTotalFiles.Text = $"扫描文件总数: {filesToClean.Count}"; lblTotalSize.Text = $"文件总大小: {totalSize / (1024.0 * 1024.0):F2} MB"; processedSize = 0; processedFiles = 0; progressBar1.Value = 0; }); }, cancellationTokenSource.Token); } catch (OperationCanceledException) { // 操作被取消 } finally { btnScan.Enabled = true; btnClean.Enabled = true; } } // 清理勾选的文件 private async void CleanSelectedFiles() { cancellationTokenSource = new CancellationTokenSource(); try { btnScan.Enabled = false; btnClean.Enabled = false; processedSize = 0; processedFiles = 0; await Task.Run(() => { foreach (ListViewItem item in listView1.CheckedItems) { if (cancellationTokenSource.Token.IsCancellationRequested) { return; } string filePath = item.SubItems[3].Text; try { if (File.Exists(filePath)) { FileInfo file = new FileInfo(filePath); processedSize += file.Length; file.Delete(); processedFiles++; } else if (Directory.Exists(filePath)) { Directory.Delete(filePath, true); foreach (FileInfo file in new DirectoryInfo(filePath).EnumerateFiles("", SearchOption.AllDirectories)) { processedSize += file.Length; } processedFiles++; } } catch (Exception ex) { MessageBox.Show($"清理文件 {filePath} 失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } this.Invoke((MethodInvoker)delegate { lblProcessedFiles.Text = $"处理文件数: {processedFiles}"; lblProcessedSize.Text = $"已处理大小: {processedSize / (1024.0 1024.0):F2} MB"; progressBar1.Value = (int)((double)processedSize / totalSize * 100); }); } if (checkBrowserCache.Checked) { ClearBrowserCache(); } if (checkWinUpdate.Checked) { ClearWindowsUpdates(); } if (checkLogs.Checked) { ClearLogFiles(); } if (checkThumbnails.Checked) { ClearThumbnailCache(); } if (checkRecycleBin.Checked) { ClearRecycleBin(); } if (checkRegistry.Checked) { CleanRegistry(); } // 释放内存 ReleaseMemory(cancellationTokenSource.Token); }, cancellationTokenSource.Token); } catch (OperationCanceledException) { // 操作被取消 } finally { btnScan.Enabled = true; btnClean.Enabled = true; MessageBox.Show($"释放的内存大小: {releasedMemorys / (1024.0 * 1024.0):F2} MB", "内存释放结果", MessageBoxButtons.OK, MessageBoxIcon.Information); } } // 全选 private void SelectAll() { foreach (ListViewItem item in listView1.Items) { item.Checked = true; } } // 反选 private void InvertSelection() { foreach (ListViewItem item in listView1.Items) { item.Checked = !item.Checked; } } private void btnScan_Click(object sender, EventArgs e) { ScanFiles(); } private void btnClean_Click(object sender, EventArgs e) { CleanSelectedFiles(); } private void btnSelectAll_Click(object sender, EventArgs e) { SelectAll(); } private void btnInvertSelection_Click(object sender, EventArgs e) { InvertSelection(); } // 模拟 InvokeAsync 的方法 private Task InvokeOnUiThreadAsync(Action action) { var tcs = new TaskCompletionSource<bool>(); if (this.InvokeRequired) { this.Invoke(new Action(() => { try { action(); tcs.SetResult(true); } catch (Exception ex) { tcs.SetException(ex); } })); } else { try { action(); tcs.SetResult(true); } catch (Exception ex) { tcs.SetException(ex); } } return tcs.Task; } // 内存释放功能 private void ReleaseMemory(CancellationToken cancellationToken) { // 监控内存使用情况 long initialMemory = GC.GetTotalMemory(false); // 释放非托管资源 // ReleaseUnmanagedResources(); // 强制进行完整的垃圾回收 GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced, true, true); GC.WaitForPendingFinalizers(); // 再次监控内存使用情况 long finalMemory = GC.GetTotalMemory(false); long releasedMemory = initialMemory - finalMemory; // 输出释放的内存大小 releasedMemorys = releasedMemory; } } }深度优化以上代码，以上代码运行扫描时出现 form界面假死，导致 progressBar1 其他数据无法正常更新。生成完整代码

用户提到在执行长时间任务比如扫描文件时界面会假死，这显然是因为任务阻塞了UI线程。我得回想一下WinForms中处理异步操作的方法。首先，用户可能需要了解如何将耗时的操作放到后台线程，避免阻塞UI线程。我记得在...

if name == "main": source_directory = "/path/to/source/folder" destination_directory = "/path/to/destination/folder"

if not os.path.isfile(dst_file) or hash_file(src_file) != hash_file(dst_file): should_copy = True if should_copy: shutil.copy2(src_file, dst_file) # Copy including metadata like timestamps. ...

使用Scala 优化以下代码 def copyDirectory(source: File, destination: File): Unit = { if (source.isDirectory) { if (!destination.exists()) { destination.mkdir() } val files = source.listFiles() for (f <- files) { val newFile = new File(destination.getAbsolutePath + File.separator + f.getName) copyDirectory(f, newFile) } } else { val in = new FileInputStream(source) val out = new FileOutputStream(destination) val buffer = new Array[Byte](1024) var length = in.read(buffer) while (length > 0) { out.write(buffer, 0, length) length = in.read(buffer) } in.close() out.close() } }

val source = new File("path/to/source/directory") val destination = new File("path/to/destination/directory") copyDirectory(source, destination) } def copyDirectory(source: File, destination: ...

================ Start to Copy Raw Data ================ cp: cannot stat 'data/DAIR-V2X/cooperative-vehicle-infrastructure/image': No such file or directory

当遇到 cp 命令中的错误提示 cannot stat 'file': No such file or directory 时，这通常意味着目标文件或源路径不存在。以下是可能的原因以及解决方案： #### 可能原因分析 1. **拼写错误** 如果输入的目标...

impdp ngsoft/[email protected]/ngsoft51 directory=expdir51 dumpfile=ng000520230609.dmp remap_schema=ng0001:ng0003 logfile=imp_ng000520230609.log TABLE_EXISTS_ACTION=REPLACE

这看起来像是一个 Oracle 数据库...导入的数据文件名为 ng000520230609.dmp，导入的过程中日志会写入到 imp_ng000520230609.log 文件中。如果导入过程中遇到同名表已存在的情况，则使用 REPLACE 操作来覆盖已存在的表。

import os import pydicom as pd from pathlib import Path from shutil import copyfile series_path = r"C:\Users\z0053ybn\Desktop\C001\DICOM\25031109\51580000" new_serise_root = r"C:\Users\z0053ybn\Desktop\classify" for folder in os.listdir(series_path): folder_path = os.path.join(series_path,folder) for files in os.listdir(folder_path): file_path = os.path.join(folder_path,files) dicom = pd.dcmread(file_path, force=True) # if dicom.SeriesDescription == "Abdomen 5.00 Br40": if dicom.SeriesDescription == "Non-Contrast Liver 5.00 Br40": if dicom.Exposure == 20: new_dicom_folder = os.path.join(new_serise_root, "FBP", "Dose_20") if not os.path.exists(new_dicom_folder): os.makedirs(new_dicom_folder) new_dicom_path = os.path.join(new_dicom_folder,files + ".dcm") copyfile(file_path, new_dicom_path) elif dicom.Exposure == 40: new_dicom_folder = os.path.join(new_serise_root, "FBP", "Dose_40") if not os.path.exists(new_dicom_folder): os.makedirs(new_dicom_folder) new_dicom_path = os.path.join(new_dicom_folder, files + ".dcm") copyfile(file_path, new_dicom_path)翻译一下这串代码

shutil.copyfile(file_path, new_file_path) # 复制文件至目标目录 except Exception as e: print(f"Error processing {file_path}: {e}") # 调用函数 source_directory = '/path/to/source/dicom/folder' ...

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