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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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7
jodconverter-web/src/main/java/cn/keking/service/cache/CacheService.java vendored
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@ -11,19 +11,26 @@ import java.util.Map;
public interface CacheService {
final String REDIS_FILE_PREVIEW_PDF_KEY = "converted-preview-pdf-file";
final String REDIS_FILE_PREVIEW_IMGS_KEY = "converted-preview-imgs-file";//压缩包内图片文件集合
final String REDIS_FILE_PREVIEW_PDF_IMGS_KEY = "converted-preview-pdfimgs-file";
final Integer DEFAULT_PDF_CAPACITY = 500000;
final Integer DEFAULT_IMG_CAPACITY = 500000;
final Integer DEFAULT_PDFIMG_CAPACITY = 500000;
void initPDFCachePool(Integer capacity);
void initIMGCachePool(Integer capacity);
public void initPdfImagesCachePool(Integer capacity);
void putPDFCache(String key, String value);
void putImgCache(String key, List<String> value);
Map<String, String> getPDFCache();
String getPDFCache(String key);
Map<String, List<String>> getImgCache();
List<String> getImgCache(String key);
Integer getPdfImageCache(String key);
void putPdfImageCache(String pdfFilePath, int num);
void addQueueTask(String url);
String takeQueueTask() throws InterruptedException;
}

25
jodconverter-web/src/main/java/cn/keking/service/cache/impl/CacheServiceJDKImpl.java vendored
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@ -25,6 +25,8 @@ public class CacheServiceJDKImpl implements CacheService {
private Map<String, List<String>> imgCache;
private Map<String, Integer> pdfImagesCache;
private static final int QUEUE_SIZE = 500000;
private BlockingQueue blockingQueue = new ArrayBlockingQueue(QUEUE_SIZE);
@ -43,6 +45,13 @@ public class CacheServiceJDKImpl implements CacheService {
.build();
}
@Override
public void initPdfImagesCachePool(Integer capacity) {
pdfImagesCache = new ConcurrentLinkedHashMap.Builder<String, Integer>()
.maximumWeightedCapacity(capacity).weigher(Weighers.singleton())
.build();
}
@Override
public void putPDFCache(String key, String value) {
if (pdfCache == null) {
@ -91,6 +100,22 @@ public class CacheServiceJDKImpl implements CacheService {
return imgCache.get(key);
}
@Override
public Integer getPdfImageCache(String key) {
if (pdfImagesCache == null) {
initPdfImagesCachePool(CacheService.DEFAULT_PDFIMG_CAPACITY);
}
return pdfImagesCache.get(key);
}
@Override
public void putPdfImageCache(String pdfFilePath, int num) {
if (pdfImagesCache == null) {
initPdfImagesCachePool(CacheService.DEFAULT_PDFIMG_CAPACITY);
}
pdfImagesCache.put(pdfFilePath, num);
}
@Override
public void addQueueTask(String url) {
blockingQueue.add(url);

17
jodconverter-web/src/main/java/cn/keking/service/cache/impl/CacheServiceRedisImpl.java vendored
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@ -43,6 +43,11 @@ public class CacheServiceRedisImpl implements CacheService {
}
@Override
public void initPdfImagesCachePool(Integer capacity) {
}
@Override
public void putPDFCache(String key, String value) {
RMapCache<String, String> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_PDF_KEY);
@ -77,6 +82,18 @@ public class CacheServiceRedisImpl implements CacheService {
return convertedList.get(key);
}
@Override
public Integer getPdfImageCache(String key) {
RMapCache<String, Integer> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_PDF_IMGS_KEY);
return convertedList.get(key);
}
@Override
public void putPdfImageCache(String pdfFilePath, int num) {
RMapCache<String, Integer> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_PDF_IMGS_KEY);
convertedList.fastPut(pdfFilePath, num);
}
@Override
public void addQueueTask(String url) {
RBlockingQueue<String> queue = redissonClient.getBlockingQueue(FileConverQueueTask.queueTaskName);

33
jodconverter-web/src/main/java/cn/keking/service/cache/impl/CacheServiceRocksDBImpl.java vendored
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@ -51,6 +51,10 @@ public class CacheServiceRocksDBImpl implements CacheService {
Map<String, List<String>> initIMGCache = new HashMap<>();
db.put(REDIS_FILE_PREVIEW_IMGS_KEY.getBytes(), toByteArray(initIMGCache));
}
if (db.get(REDIS_FILE_PREVIEW_PDF_IMGS_KEY.getBytes()) == null) {
Map<String, Integer> initPDFIMGCache = new HashMap<>();
db.put(REDIS_FILE_PREVIEW_PDF_IMGS_KEY.getBytes(), toByteArray(initPDFIMGCache));
}
} catch (RocksDBException | IOException e) {
LOGGER.error("Uable to init RocksDB" + e);
}
@ -67,6 +71,11 @@ public class CacheServiceRocksDBImpl implements CacheService {
}
@Override
public void initPdfImagesCachePool(Integer capacity) {
}
@Override
public void putPDFCache(String key, String value) {
try {
@ -136,6 +145,30 @@ public class CacheServiceRocksDBImpl implements CacheService {
return result;
}
@Override
public Integer getPdfImageCache(String key) {
Integer result = 0;
Map<String, Integer> map;
try{
map = (Map<String, Integer>) toObject(db.get(REDIS_FILE_PREVIEW_PDF_IMGS_KEY.getBytes()));
result = map.get(key);
} catch (RocksDBException | IOException | ClassNotFoundException e) {
LOGGER.error("Get from RocksDB Exception" + e);
}
return result;
}
@Override
public void putPdfImageCache(String pdfFilePath, int num) {
try {
Map<String, Integer> pdfImageCacheItem = new HashMap<>();
pdfImageCacheItem.put(pdfFilePath, num);
db.put(REDIS_FILE_PREVIEW_PDF_IMGS_KEY.getBytes(), toByteArray(pdfImageCacheItem));
} catch (RocksDBException | IOException e) {
LOGGER.error("Put into RocksDB Exception" + e);
}
}
@Override
public void addQueueTask(String url) {
blockingQueue.add(url);

25
jodconverter-web/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java
View File

@ -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";
}