增加word文档(excel,ppt和word)转pdf的接口
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weiweiw
parent
7965be04f4
commit
144e391a6f
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@ -36,4 +36,5 @@ public interface FilePreview {
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String filePreviewHandle(String url, Model model, FileAttribute fileAttribute);
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String fileConvert(String url, Model model, FileAttribute fileAttribute);
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default String wordConvertPdf(String url, FileAttribute fileAttribute) {return "不支持的文件类型转换";};
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}
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@ -19,9 +19,15 @@ import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.stereotype.Service;
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import org.springframework.ui.Model;
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import org.springframework.util.StreamUtils;
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import org.springframework.util.StringUtils;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.util.List;
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/**
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@ -175,4 +181,73 @@ public class OfficeFilePreviewImpl implements FilePreview {
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}
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}
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@Override
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public String wordConvertPdf(String url,FileAttribute fileAttribute){
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// 预览Type，参数传了就取参数的，没传取系统默认
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long startime = System.currentTimeMillis();
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String officePreviewType = fileAttribute.getOfficePreviewType();
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boolean userToken = fileAttribute.getUsePasswordCache();
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String baseUrl = BaseUrlFilter.getBaseUrl();
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String suffix = fileAttribute.getSuffix(); //获取文件后缀
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String fileName = fileAttribute.getName(); //获取文件原始名称
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String filePassword = fileAttribute.getFilePassword(); //获取密码
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boolean forceUpdatedCache=fileAttribute.forceUpdatedCache(); //是否启用强制更新命令
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boolean isHtmlView = false; //xlsx 转换成html
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String cacheName = fileAttribute.getCacheName(); //转换后的文件名
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String outFilePath = fileAttribute.getOutFilePath(); //转换后生成文件的路径
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String suffix1 = KkFileUtils.suffixFromFileName(cacheName);
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//将excel文档格式不转换为html，而是转换为pdf
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if (suffix1.equals("html") ){
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cacheName = cacheName.substring(0, cacheName.lastIndexOf(".")+1) + "pdf";
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outFilePath = outFilePath.substring(0, outFilePath.lastIndexOf(".")+1) + "pdf";
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}
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//如果有同名文件就默认为已经转换
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if (KkFileUtils.isExist(outFilePath)) {
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fileHandlerService.addConvertedFile(cacheName, fileHandlerService.getRelativePath(outFilePath));
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return baseUrl + cacheName;
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}
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long endtime = System.currentTimeMillis();
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System.out.println("下载前耗时：" + (endtime - startime) / 1000 + "ms");
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startime = System.currentTimeMillis();
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if (forceUpdatedCache|| !fileHandlerService.listConvertedFiles().containsKey(cacheName) || !ConfigConstants.isCacheEnabled()) {
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// 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
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ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
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if (response.isFailure()) {
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return response.getMsg();
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}
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String filePath = response.getContent();
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boolean isPwdProtectedOffice = OfficeUtils.isPwdProtected(filePath); // 判断是否加密文件
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if (isPwdProtectedOffice && !StringUtils.hasLength(filePassword)) {
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// 加密文件需要密码
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return "加密文件需要密码";
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} else {
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if (StringUtils.hasText(outFilePath)) {
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try {
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logger.info("start to officeToPdfService.openOfficeToPDF");
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officeToPdfService.openOfficeToPDF(filePath, outFilePath, fileAttribute);
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logger.info("end to officeToPdfService.openOfficeToPDF");
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} catch (OfficeException e) {
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if (isPwdProtectedOffice && !OfficeUtils.isCompatible(filePath, filePassword)) {
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// 加密文件密码错误，提示重新输入
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return "加密文件密码错误";
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}
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return "抱歉，该文件版本不兼容，文件版本错误";
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}
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//是否保留OFFICE源文件
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if (!fileAttribute.isCompressFile() && ConfigConstants.getDeleteSourceFile()) {
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KkFileUtils.deleteFileByPath(filePath);
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}
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if (userToken || !isPwdProtectedOffice) {
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// 加入缓存
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fileHandlerService.addConvertedFile(cacheName, fileHandlerService.getRelativePath(outFilePath));
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}
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}
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}
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}
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return baseUrl + cacheName;
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}
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}
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@ -88,6 +88,14 @@ public class OnlinePreviewController {
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return filePreview.filePreviewHandle(fileUrl, model, fileAttribute); //统一在这里处理 url
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}
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/**
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* 转换文件，用于大文件在预览前的转换
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* @param url
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* @param model
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* @param req
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* @param token
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* @return
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*/
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@GetMapping( "/onConvert")
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@ResponseBody
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public String onConvert(String url, Model model, HttpServletRequest req, String token) {
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@ -113,32 +121,38 @@ public class OnlinePreviewController {
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return filePreview.fileConvert(fileUrl, model, fileAttribute);
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}
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// @GetMapping( "/picturesPreview")
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// public String picturesPreview(String urls, Model model, HttpServletRequest req) {
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// String fileUrls;
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// try {
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// fileUrls = WebUtils.decodeUrl(urls);
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// // 防止XSS攻击
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// fileUrls = KkFileUtils.htmlEscape(fileUrls);
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// } catch (Exception ex) {
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// String errorMsg = String.format(BASE64_DECODE_ERROR_MSG, "urls");
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// return otherFilePreview.notSupportedFile(model, errorMsg);
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// }
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// logger.info("预览文件url：{}，urls：{}", fileUrls, urls);
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// // 抽取文件并返回文件列表
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// String[] images = fileUrls.split("\\|");
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// List<String> imgUrls = Arrays.asList(images);
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// model.addAttribute("imgUrls", imgUrls);
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// String currentUrl = req.getParameter("currentUrl");
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// if (StringUtils.hasText(currentUrl)) {
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// String decodedCurrentUrl = new String(Base64.decodeBase64(currentUrl));
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// decodedCurrentUrl = KkFileUtils.htmlEscape(decodedCurrentUrl); // 防止XSS攻击
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// model.addAttribute("currentUrl", decodedCurrentUrl);
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// } else {
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// model.addAttribute("currentUrl", imgUrls.get(0));
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// }
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// return PICTURE_FILE_PREVIEW_PAGE;
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// }
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/**
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* 转换文件，用于大文件在预览前的转换
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* @param url
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// * @param model
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* @param req
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* @param token
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* @return
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*/
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@GetMapping( "/onConvertPdf")
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@ResponseBody
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public String onConvertPdf(String url, HttpServletRequest req, String token) {
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String fileUrl;
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try {
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if (!WebUtils.checkToken(token)) {
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return "token 错误";
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}
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fileUrl = WebUtils.decodeUrl(url);
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} catch (Exception ex) {
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String errorMsg = String.format(BASE64_DECODE_ERROR_MSG, "url");
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return errorMsg;
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}
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FileAttribute fileAttribute = fileHandlerService.getFileAttribute(fileUrl, req); //这里不在进行URL 处理了
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FilePreview filePreview = previewFactory.get(fileAttribute);
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logger.info("转换文件url：{}，previewType：{}", fileUrl, fileAttribute.getType());
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fileUrl =WebUtils.urlEncoderencode(fileUrl);
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if (ObjectUtils.isEmpty(fileUrl)) {
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return "非法路径,不允许访问";
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}
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return filePreview.wordConvertPdf(fileUrl, fileAttribute);
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}
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/**
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* 根据url获取文件内容
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