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高雄
2026-01-19 17:46:32 +08:00
parent 904af89190
commit 7dc0469b30
48 changed files with 10922 additions and 1241 deletions
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265
server/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java
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@@ -8,19 +8,23 @@ import cn.keking.service.FilePreview;
import cn.keking.service.OfficeToPdfService;
import cn.keking.service.PdfToJpgService;
import cn.keking.utils.DownloadUtils;
import cn.keking.utils.FileConvertStatusManager;
import cn.keking.utils.KkFileUtils;
import cn.keking.utils.OfficeUtils;
import cn.keking.utils.WebUtils;
import cn.keking.web.filter.BaseUrlFilter;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.poi.EncryptedDocumentException;
import org.jodconverter.core.office.OfficeException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* Created by kl on 2018/1/17.
@@ -29,9 +33,12 @@ import java.util.List;
@Service
public class OfficeFilePreviewImpl implements FilePreview {
private static final Logger logger = LoggerFactory.getLogger(OfficeFilePreviewImpl.class);
public static final String OFFICE_PREVIEW_TYPE_IMAGE = "image";
public static final String OFFICE_PREVIEW_TYPE_ALL_IMAGES = "allImages";
private static final String OFFICE_PASSWORD_MSG = "password";
// 用于处理回调的线程池
private static final ExecutorService callbackExecutor = Executors.newFixedThreadPool(3);
private final FileHandlerService fileHandlerService;
private final OfficeToPdfService officeToPdfService;
@@ -54,12 +61,16 @@ public class OfficeFilePreviewImpl implements FilePreview {
String suffix = fileAttribute.getSuffix(); //获取文件后缀
String fileName = fileAttribute.getName(); //获取文件原始名称
String filePassword = fileAttribute.getFilePassword(); //获取密码
boolean forceUpdatedCache=fileAttribute.forceUpdatedCache(); //是否启用强制更新命令
boolean forceUpdatedCache = fileAttribute.forceUpdatedCache(); //是否启用强制更新命令
boolean isHtmlView = fileAttribute.isHtmlView(); //xlsx 转换成html
String cacheName = fileAttribute.getCacheName(); //转换后的文件名
String outFilePath = fileAttribute.getOutFilePath(); //转换后生成文件的路径
// 查询转换状态
checkAndHandleConvertStatus(model, fileName, cacheName,fileAttribute);
if (!officePreviewType.equalsIgnoreCase("html")) {
if (ConfigConstants.getOfficeTypeWeb() .equalsIgnoreCase("web")) {
if (ConfigConstants.getOfficeTypeWeb().equalsIgnoreCase("web")) {
if (suffix.equalsIgnoreCase("xlsx")) {
model.addAttribute("pdfUrl", KkFileUtils.htmlEscape(url)); //特殊符号处理
return XLSX_FILE_PREVIEW_PAGE;
@@ -70,14 +81,190 @@ public class OfficeFilePreviewImpl implements FilePreview {
}
}
}
if (forceUpdatedCache|| !fileHandlerService.listConvertedFiles().containsKey(cacheName) || !ConfigConstants.isCacheEnabled()) {
// 下载远程文件到本地，如果文件在本地已存在不会重复下载
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
// 图片预览模式（异步转换）
if (!isHtmlView && baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
boolean jiami = false;
if (!ObjectUtils.isEmpty(filePassword)) {
jiami = pdftojpgservice.hasEncryptedPdfCacheSimple(outFilePath);
}
if (forceUpdatedCache || !fileHandlerService.listConvertedFiles().containsKey(cacheName) || !ConfigConstants.isCacheEnabled()) {
if (jiami) {
return getPreviewType(model, fileAttribute, officePreviewType, cacheName, outFilePath);
}
// 下载文件
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
String filePath = response.getContent();
// 检查是否加密文件
boolean isPwdProtectedOffice = OfficeUtils.isPwdProtected(filePath);
if (isPwdProtectedOffice && !StringUtils.hasLength(filePassword)) {
// 加密文件需要密码
model.addAttribute("needFilePassword", true);
model.addAttribute("fileName", fileName);
model.addAttribute("cacheName", cacheName);
return EXEL_FILE_PREVIEW_PAGE;
}
try {
// 启动异步转换
startAsyncOfficeConversion(filePath, outFilePath, cacheName, fileAttribute, officePreviewType);
// 返回等待页面
model.addAttribute("fileName", fileName);
model.addAttribute("message", "文件正在转换中，请稍候...");
return WAITING_FILE_PREVIEW_PAGE;
} catch (Exception e) {
logger.error("Failed to start Office conversion: {}", filePath, e);
return otherFilePreview.notSupportedFile(model, fileAttribute, "文件转换异常，请联系管理员");
}
} else {
// 如果已有缓存，直接渲染预览
return getPreviewType(model, fileAttribute, officePreviewType, cacheName, outFilePath);
}
}
// 处理普通Office转PDF预览
return handleRegularOfficePreview(model, fileAttribute, fileName, forceUpdatedCache, cacheName, outFilePath,
isHtmlView, userToken, filePassword);
}
/**
* 启动异步Office转换
*/
private void startAsyncOfficeConversion(String filePath, String outFilePath, String cacheName,
FileAttribute fileAttribute,
String officePreviewType) {
// 启动异步转换
CompletableFuture<List<String>> conversionFuture = CompletableFuture.supplyAsync(() -> {
try {
// 更新状态
FileConvertStatusManager.startConvert(cacheName);
FileConvertStatusManager.updateProgress(cacheName, "正在启动Office转换", 20);
// 转换Office到PDF
FileConvertStatusManager.updateProgress(cacheName, "正在转换Office到jpg", 60);
officeToPdfService.openOfficeToPDF(filePath, outFilePath, fileAttribute);
if (fileAttribute.isHtmlView()) {
// 对转换后的文件进行操作(改变编码方式)
FileConvertStatusManager.updateProgress(cacheName, "处理HTML编码", 95);
fileHandlerService.doActionConvertedFile(outFilePath);
}
// 是否需要转换为图片
List<String> imageUrls = null;
if (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) ||
OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType)) {
FileConvertStatusManager.updateProgress(cacheName, "正在转换PDF为图片", 90);
imageUrls = pdftojpgservice.pdf2jpg(outFilePath, outFilePath, cacheName, fileAttribute);
}
// 缓存处理
boolean isPwdProtectedOffice = OfficeUtils.isPwdProtected(filePath);
boolean userToken = fileAttribute.getUsePasswordCache();
String filePassword = fileAttribute.getFilePassword();
if (ConfigConstants.isCacheEnabled() && (ObjectUtils.isEmpty(filePassword) || userToken || !isPwdProtectedOffice)) {
fileHandlerService.addConvertedFile(cacheName, fileHandlerService.getRelativePath(outFilePath));
}
FileConvertStatusManager.updateProgress(cacheName, "转换完成", 100);
FileConvertStatusManager.convertSuccess(cacheName);
return imageUrls;
} catch (OfficeException e) {
boolean isPwdProtectedOffice = OfficeUtils.isPwdProtected(filePath);
String filePassword = fileAttribute.getFilePassword();
if (isPwdProtectedOffice && !OfficeUtils.isCompatible(filePath, filePassword)) {
FileConvertStatusManager.markError(cacheName, "文件密码错误，请重新输入");
} else {
logger.error("Office转换执行失败: {}", cacheName, e);
FileConvertStatusManager.markError(cacheName, "Office转换失败: " + e.getMessage());
}
return null;
} catch (Exception e) {
logger.error("Office转换执行失败: {}", cacheName, e);
// 检查是否已经标记为超时
FileConvertStatusManager.ConvertStatus status = FileConvertStatusManager.getConvertStatus(cacheName);
if (status == null || status.getStatus() != FileConvertStatusManager.Status.TIMEOUT) {
FileConvertStatusManager.markError(cacheName, "转换失败: " + e.getMessage());
}
return null;
}
});
// 添加转换完成后的回调
conversionFuture.thenAcceptAsync(imageUrls -> {
try {
// 这里假设imageUrls不为null且不为空表示转换成功
if (imageUrls != null && !imageUrls.isEmpty()) {
// 是否保留源文件（只在转换成功后才删除）
if (!fileAttribute.isCompressFile() && ConfigConstants.getDeleteSourceFile()) {
KkFileUtils.deleteFileByPath(filePath);
}
}
} catch (Exception e) {
logger.error("Office转换后续处理失败: {}", filePath, e);
}
}, callbackExecutor);
}
/**
* 获取预览类型（图片预览）
*/
String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType,
String cacheName, String outFilePath) {
String suffix = fileAttribute.getSuffix();
boolean isPPT = suffix.equalsIgnoreCase("ppt") || suffix.equalsIgnoreCase("pptx");
List<String> imageUrls;
try {
if (pdftojpgservice.hasEncryptedPdfCacheSimple(outFilePath)) {
imageUrls = pdftojpgservice.getEncryptedPdfCache(outFilePath);
} else {
imageUrls = fileHandlerService.loadPdf2jpgCache(outFilePath);
}
if (imageUrls == null || imageUrls.isEmpty()) {
return otherFilePreview.notSupportedFile(model, fileAttribute, "Office转换缓存异常，请联系管理员");
}
model.addAttribute("imgUrls", imageUrls);
model.addAttribute("currentUrl", imageUrls.getFirst());
if (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType)) {
// PPT 图片模式使用专用预览页面
return (isPPT ? PPT_FILE_PREVIEW_PAGE : OFFICE_PICTURE_FILE_PREVIEW_PAGE);
} else {
return PICTURE_FILE_PREVIEW_PAGE;
}
} catch (Exception e) {
logger.error("渲染Office预览页面失败: {}", cacheName, e);
return otherFilePreview.notSupportedFile(model, fileAttribute, "渲染预览页面异常，请联系管理员");
}
}
/**
* 处理普通Office预览（转PDF）
*/
private String handleRegularOfficePreview(Model model, FileAttribute fileAttribute,
String fileName, boolean forceUpdatedCache, String cacheName,
String outFilePath, boolean isHtmlView, boolean userToken,
String filePassword) {
if (forceUpdatedCache || !fileHandlerService.listConvertedFiles().containsKey(cacheName) || !ConfigConstants.isCacheEnabled()) {
// 下载远程文件到本地，如果文件在本地已存在不会重复下载
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
String filePath = response.getContent();
boolean isPwdProtectedOffice = OfficeUtils.isPwdProtected(filePath); // 判断是否加密文件
boolean isPwdProtectedOffice = OfficeUtils.isPwdProtected(filePath); // 判断是否加密文件
if (isPwdProtectedOffice && !StringUtils.hasLength(filePassword)) {
// 加密文件需要密码
model.addAttribute("needFilePassword", true);
@@ -109,43 +296,33 @@ public class OfficeFilePreviewImpl implements FilePreview {
}
}
}
}
}
if (!isHtmlView && baseUrl != null && (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType))) {
return getPreviewType(model, fileAttribute, officePreviewType, cacheName, outFilePath, fileHandlerService, OFFICE_PREVIEW_TYPE_IMAGE, otherFilePreview);
}
model.addAttribute("pdfUrl", WebUtils.encodeFileName(cacheName)); //输出转义文件名 方便url识别
return isHtmlView ? EXEL_FILE_PREVIEW_PAGE : PDF_FILE_PREVIEW_PAGE;
}
String getPreviewType(Model model, FileAttribute fileAttribute, String officePreviewType, String pdfName, String outFilePath, FileHandlerService fileHandlerService, String officePreviewTypeImage, OtherFilePreviewImpl otherFilePreview) {
String suffix = fileAttribute.getSuffix();
boolean isPPT = suffix.equalsIgnoreCase("ppt") || suffix.equalsIgnoreCase("pptx");
List<String> imageUrls = null;
try {
imageUrls = pdftojpgservice.pdf2jpg(outFilePath,outFilePath, pdfName, fileAttribute);
} catch (Exception e) {
Throwable[] throwableArray = ExceptionUtils.getThrowables(e);
for (Throwable throwable : throwableArray) {
if (throwable instanceof IOException || throwable instanceof EncryptedDocumentException) {
if (e.getMessage().toLowerCase().contains(OFFICE_PASSWORD_MSG)) {
model.addAttribute("needFilePassword", true);
return EXEL_FILE_PREVIEW_PAGE;
}
}
/**
* 异步方法
*/
public String checkAndHandleConvertStatus(Model model, String fileName, String cacheName, FileAttribute fileAttribute){
FileConvertStatusManager.ConvertStatus status = FileConvertStatusManager.getConvertStatus(cacheName);
int refreshSchedule = ConfigConstants.getTime();
if (status != null) {
if (status.getStatus() == FileConvertStatusManager.Status.CONVERTING) {
// 正在转换中，返回等待页面
model.addAttribute("fileName", fileName);
model.addAttribute("time", refreshSchedule);
model.addAttribute("message", status.getRealTimeMessage());
return WAITING_FILE_PREVIEW_PAGE;
} else if (status.getStatus() == FileConvertStatusManager.Status.TIMEOUT) {
// 超时状态，不允许重新转换
return otherFilePreview.notSupportedFile(model, fileAttribute, "文件转换已超时，无法继续转换");
} else if (status.getStatus() == FileConvertStatusManager.Status.FAILED) {
// 失败状态，不允许重新转换
return otherFilePreview.notSupportedFile(model, fileAttribute, "文件转换失败，无法继续转换");
}
}
if (imageUrls == null || imageUrls.size() < 1) {
return otherFilePreview.notSupportedFile(model, fileAttribute, "office转图片异常，请联系管理员");
}
model.addAttribute("imgUrls", imageUrls);
model.addAttribute("currentUrl", imageUrls.get(0));
if (officePreviewTypeImage.equals(officePreviewType)) {
// PPT 图片模式使用专用预览页面
return (isPPT ? PPT_FILE_PREVIEW_PAGE : OFFICE_PICTURE_FILE_PREVIEW_PAGE);
} else {
return PICTURE_FILE_PREVIEW_PAGE;
}
return null;
}
}
}