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word、ppt文档新增图片预览模式

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陈精华
2019-04-25 18:39:58 +08:00
committed by kl
parent 68aa5db66b
commit b4d3419797
20 changed files with 312 additions and 5 deletions
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25
jodconverter-web/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java
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@ -7,6 +7,7 @@ import cn.keking.service.FilePreview;
import cn.keking.utils.DownloadUtils;
import cn.keking.utils.FileUtils;
import cn.keking.utils.OfficeToPdf;
import cn.keking.utils.PdfUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
@ -15,6 +16,7 @@ import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import java.io.File;
import java.util.List;
/**
* Created by kl on 2018/1/17.
@ -26,7 +28,8 @@ public class OfficeFilePreviewImpl implements FilePreview {
@Autowired
FileUtils fileUtils;
String fileDir = ConfigConstants.getFileDir();
@Autowired
PdfUtils pdfUtils;
@Autowired
DownloadUtils downloadUtils;
@ -34,14 +37,22 @@ public class OfficeFilePreviewImpl implements FilePreview {
@Autowired
private OfficeToPdf officeToPdf;
String fileDir = ConfigConstants.getFileDir();
public static final String OFFICE_PREVIEW_TYPE_PDF = "pdf";
public static final String OFFICE_PREVIEW_TYPE_IMAGE = "image";
@Override
public String filePreviewHandle(String url, Model model) {
// 预览Type，参数传了就取参数的，没传取系统默认
String officePreviewType = model.asMap().get("officePreviewType") == null ? ConfigConstants.getOfficePreviewType() : model.asMap().get("officePreviewType").toString();
FileAttribute fileAttribute=fileUtils.getFileAttribute(url);
String suffix=fileAttribute.getSuffix();
String fileName=fileAttribute.getName();
String decodedUrl=fileAttribute.getDecodedUrl();
boolean isHtml = suffix.equalsIgnoreCase("xls") || suffix.equalsIgnoreCase("xlsx");
String pdfName = fileName.substring(0, fileName.lastIndexOf(".") + 1) + (isHtml ? "html" : "pdf");
String outFilePath = fileDir + pdfName;
// 判断之前是否已转换过，如果转换过，直接返回，否则执行转换
if (!fileUtils.listConvertedFiles().containsKey(pdfName)) {
String filePath = fileDir + fileName;
@ -53,7 +64,6 @@ public class OfficeFilePreviewImpl implements FilePreview {
}
filePath = response.getContent();
}
String outFilePath = fileDir + pdfName;
if (StringUtils.hasText(outFilePath)) {
officeToPdf.openOfficeToPDF(filePath, outFilePath);
File f = new File(filePath);
@ -68,6 +78,17 @@ public class OfficeFilePreviewImpl implements FilePreview {
fileUtils.addConvertedFile(pdfName, fileUtils.getRelativePath(outFilePath));
}
}
if (OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType)) {
List<String> imageUrls = pdfUtils.pdf2jpg(outFilePath, pdfName, url);
if (imageUrls == null || imageUrls.size() < 1) {
model.addAttribute("msg", "office转图片异常，请联系管理员");
model.addAttribute("fileType",fileAttribute.getSuffix());
return "fileNotSupported";
}
model.addAttribute("imgurls", imageUrls);
model.addAttribute("currentUrl", imageUrls.get(0));
return "officePicture";
}
model.addAttribute("pdfUrl", pdfName);
return isHtml ? "html" : "pdf";
}