gitee
/
file-online-preview
mirror of https://gitee.com/kekingcn/file-online-preview
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

新增 支持压缩包密码 修复LINUX下中文乱码 解压支持文件目录 

新增 支持压缩包密码 修复LINUX下中文乱码 解压支持文件目录

Signed-off-by: 高雄 <admin@cxcp.com>
pull/84/head
高雄 2023-04-03 07:08:33 +00:00 committed by Gitee
parent d646d72a26
commit f2cfb4cf4a
No known key found for this signature in database
GPG Key ID: 173E9B9CA92EEF8F
1 changed files with 33 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
View File

@ -3,13 +3,12 @@ package cn.keking.service.impl;
import cn.keking.config.ConfigConstants;
import cn.keking.model.FileAttribute;
import cn.keking.model.ReturnResponse;
import cn.keking.service.FileHandlerService;
import cn.keking.service.FilePreview;
import cn.keking.utils.ConvertPicUtil;
import cn.keking.utils.DownloadUtils;
import cn.keking.utils.WebUtils;
import cn.keking.web.filter.BaseUrlFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
@ -27,30 +26,28 @@ import java.util.List;
@Service
public class TiffFilePreviewImpl implements FilePreview {
private final static Logger logger = LoggerFactory.getLogger(TiffFilePreviewImpl.class);
private final PictureFilePreviewImpl pictureFilePreview;
private final FileHandlerService fileHandlerService;
private final OtherFilePreviewImpl otherFilePreview;
public TiffFilePreviewImpl(FileHandlerService fileHandlerService,OtherFilePreviewImpl otherFilePreview) {
this.fileHandlerService = fileHandlerService;
this.otherFilePreview = otherFilePreview;
}
private static final String INITIALIZE_MEMORY_SIZE = "initializeMemorySize";
//默认初始化 50MB 内存
private static final long INITIALIZE_MEMORY_SIZE_VALUE_DEFAULT = 1024L * 1024 * 50;
private final String fileDir = ConfigConstants.getFileDir();
public TiffFilePreviewImpl(PictureFilePreviewImpl pictureFilePreview) {
this.pictureFilePreview = pictureFilePreview;
}
@Override
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
String fileName = fileAttribute.getName();
String baseUrl = BaseUrlFilter.getBaseUrl();
String tifPreviewType = ConfigConstants.getTifPreviewType();
String tifOnLinePreviewType = fileAttribute.getTifPreviewType();
if (StringUtils.hasText(tifOnLinePreviewType)) {
tifPreviewType = tifOnLinePreviewType;
}
if ("tif".equalsIgnoreCase(tifPreviewType)) {
pictureFilePreview.filePreviewHandle(url, model, fileAttribute);
String fileSize = WebUtils.getUrlParameterReg(url, INITIALIZE_MEMORY_SIZE);
if (StringUtils.hasText(fileSize)) {
model.addAttribute(INITIALIZE_MEMORY_SIZE, fileSize);
@ -58,41 +55,36 @@ public class TiffFilePreviewImpl implements FilePreview {
model.addAttribute(INITIALIZE_MEMORY_SIZE, Long.toString(INITIALIZE_MEMORY_SIZE_VALUE_DEFAULT));
}
return TIFF_FILE_PREVIEW_PAGE;
} else if ("jpg".equalsIgnoreCase(tifPreviewType) || "pdf".equalsIgnoreCase(tifPreviewType)) {
String inputFileName = url.substring(url.lastIndexOf("/") + 1);
String inputFileNamePrefix = inputFileName.substring(0, inputFileName.lastIndexOf("."));
String strLocalTif = fileDir + inputFileName;
File fileTiff = new File(strLocalTif);
// 如果本地不存在这个tif文件，则下载
if (!fileTiff.exists()) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, inputFileName);
if (response.isFailure()) {
return NOT_SUPPORTED_FILE_PAGE;
}
}
String baseUrl = BaseUrlFilter.getBaseUrl();
String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "pdf";
String jpgName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + "jpg";
String strLocalTif = fileDir + fileName;
String outFilePath = fileDir + pdfName;
if ("pdf".equalsIgnoreCase(tifPreviewType)) {
// 以PDF模式预览的过程
File filePdf = new File(fileDir + inputFileNamePrefix + ".pdf");
// 如果本地不存在对应的pdf，则调用转换过程。否则直接用现有的pdf文件
if (!filePdf.exists()) {
filePdf = ConvertPicUtil.convertTif2Pdf(strLocalTif, fileDir + inputFileNamePrefix + ".pdf");
}
// 如果pdf已经存在，则将url路径加入到对象中，返回给页面
assert filePdf != null;
if (filePdf.exists()) {
String pdfUrl = baseUrl + inputFileNamePrefix + ".pdf";
model.addAttribute("pdfUrl", pdfUrl);
//当文件不存在时，就去下载
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (response.isFailure()) {
return otherFilePreview.notSupportedFile(model, fileAttribute, response.getMsg());
}
String filePath = response.getContent();
if (ConfigConstants.isCacheEnabled()) {
// 加入缓存
fileHandlerService.addConvertedFile(pdfName, fileHandlerService.getRelativePath(outFilePath));
}
if(ConvertPicUtil.convertJpg2Pdf(filePath, outFilePath)){
model.addAttribute("pdfUrl", pdfName);
return PDF_FILE_PREVIEW_PAGE;
}
}
else {
model.addAttribute("pdfUrl", pdfName);
return PDF_FILE_PREVIEW_PAGE;
}
} else {
// 以JPG模式预览的过程
String strJpgFilePathName = fileDir + inputFileNamePrefix + ".jpg";
String strJpgFilePathName = fileDir + jpgName;
// 将tif转换为jpg，返回转换后的文件路径、文件名的list
List<String> listPic2Jpg = ConvertPicUtil.convertTif2Jpg(strLocalTif, strJpgFilePathName);
// 将返回页面的图片url的list对象
@ -101,19 +93,11 @@ public class TiffFilePreviewImpl implements FilePreview {
for (String strJpg : listPic2Jpg) {
listImageUrls.add(baseUrl + strJpg);
}
model.addAttribute("imgUrls", listImageUrls);
model.addAttribute("currentUrl", listImageUrls.get(0));
}
// 转换后的tif没用了，可以删掉了
if (fileTiff.exists() && !fileTiff.delete()) {
logger.error("{} 清理失败", strLocalTif);
}
return PICTURE_FILE_PREVIEW_PAGE;
}
return NOT_SUPPORTED_FILE_PAGE;
}
}