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支持7z文件预览

pull/10/head
陈精华 2019-05-16 17:44:34 +08:00 committed by kl
parent f244054462
commit 3f40b60c64
3 changed files with 129 additions and 0 deletions
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6
jodconverter-web/pom.xml
View File

@ -114,6 +114,12 @@
<artifactId>junrar</artifactId>
<version>4.0.0</version>
</dependency>
<!-- 解压(7z)-->
<dependency>
<groupId>org.tukaani</groupId>
<artifactId>xz</artifactId>
<version>1.8</version>
</dependency>
<dependency>
<groupId>net.sourceforge.jchardet</groupId>
<artifactId>jchardet</artifactId>

2
jodconverter-web/src/main/java/cn/keking/service/impl/CompressFilePreviewImpl.java
View File

@ -47,6 +47,8 @@ public class CompressFilePreviewImpl implements FilePreview{
fileTree = zipReader.readZipFile(filePath, fileName);
} else if ("rar".equalsIgnoreCase(suffix)) {
fileTree = zipReader.unRar(filePath, fileName);
} else if ("7z".equalsIgnoreCase(suffix)) {
fileTree = zipReader.read7zFile(filePath, fileName);
}
if (fileTree != null && !"null".equals(fileTree)) {
fileUtils.addConvertedFile(fileName, fileTree);

121
jodconverter-web/src/main/java/cn/keking/utils/ZipReader.java
View File

@ -9,6 +9,8 @@ import com.github.junrar.exception.RarException;
import com.github.junrar.rarfile.FileHeader;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry;
import org.apache.commons.compress.archivers.sevenz.SevenZFile;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipFile;
import org.springframework.beans.factory.annotation.Autowired;
@ -160,6 +162,71 @@ public class ZipReader {
return null;
}
/**
* 解压7z文件
* @param filePath
* @param fileKey
* @return
*/
public String read7zFile(String filePath,String fileKey) {
String archiveSeparator = "/";
Map<String, FileNode> appender = Maps.newHashMap();
List imgUrls=Lists.newArrayList();
String baseUrl= (String) RequestContextHolder.currentRequestAttributes().getAttribute("baseUrl",0);
String archiveFileName = fileUtils.getFileNameFromPath(filePath);
try {
SevenZFile zipFile = new SevenZFile(new File(filePath));
Iterable<SevenZArchiveEntry> entries = zipFile.getEntries();
// 排序
Enumeration<SevenZArchiveEntry> newEntries = sortSevenZEntries(entries);
List<Map<String, SevenZArchiveEntry>> entriesToBeExtracted = Lists.newArrayList();
while (newEntries.hasMoreElements()){
SevenZArchiveEntry entry = newEntries.nextElement();
String fullName = entry.getName();
int level = fullName.split(archiveSeparator).length;
// 展示名
String originName = getLastFileName(fullName, archiveSeparator);
String childName = level + "_" + originName;
boolean directory = entry.isDirectory();
if (!directory) {
childName = archiveFileName + "_" + originName;
entriesToBeExtracted.add(Collections.singletonMap(childName, entry));
}
String parentName = getLast2FileName(fullName, archiveSeparator, archiveFileName);
parentName = (level-1) + "_" + parentName;
FileType type=fileUtils.typeFromUrl(childName);
if (type.equals(FileType.picture)){//添加图片文件到图片列表
imgUrls.add(baseUrl+childName);
}
FileNode node = new FileNode(originName, childName, parentName, new ArrayList<>(), directory,fileKey);
addNodes(appender, parentName, node);
appender.put(childName, node);
}
// 开启新的线程处理文件解压
executors.submit(new SevenZExtractorWorker(entriesToBeExtracted, filePath));
fileUtils.setRedisImgUrls(fileKey,imgUrls);
return new ObjectMapper().writeValueAsString(appender.get(""));
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
/**
* 排序7ZEntries(对原来列表倒序)
* @param entries
*/
private Enumeration<SevenZArchiveEntry> sortSevenZEntries(Iterable<SevenZArchiveEntry> entries) {
List<SevenZArchiveEntry> sortedEntries = Lists.newArrayList();
Iterator<SevenZArchiveEntry> iterator = entries.iterator();
while(iterator.hasNext()){
sortedEntries.add(iterator.next());
}
// Collections.sort(sortedEntries, Comparator.comparingInt(o -> o.getName().length()));
return Collections.enumeration(sortedEntries);
}
private void addNodes(Map<String, FileNode> appender, String parentName, FileNode node) {
if (appender.containsKey(parentName)) {
appender.get(parentName).getChildList().add(node);
@ -402,6 +469,60 @@ public class ZipReader {
}
}
/**
* 7z文件抽取线程
*/
class SevenZExtractorWorker implements Runnable {
private List<Map<String, SevenZArchiveEntry>> entriesToBeExtracted;
private String filePath;
public SevenZExtractorWorker(List<Map<String, SevenZArchiveEntry>> entriesToBeExtracted, String filePath) {
this.entriesToBeExtracted = entriesToBeExtracted;
this.filePath = filePath;
}
@Override
public void run() {
System.out.println("解析压缩文件开始《《《《《《《《《《《《《《《《《《《《《《《");
try {
SevenZFile sevenZFile = new SevenZFile(new File(filePath));
SevenZArchiveEntry entry = sevenZFile.getNextEntry();
while (entry != null) {
if (entry.isDirectory()) {
entry = sevenZFile.getNextEntry();
continue;
}
String childName = "default_file";
SevenZArchiveEntry entry1 = null;
for (Map<String, SevenZArchiveEntry> entryMap : entriesToBeExtracted) {
childName = entryMap.keySet().iterator().next();
entry1 = entryMap.values().iterator().next();
if (entry.getName().equals(entry1.getName())) {
break;
}
}
FileOutputStream out = new FileOutputStream(fileDir + childName);
byte[] content = new byte[(int) entry.getSize()];
sevenZFile.read(content, 0, content.length);
out.write(content);
out.close();
entry = sevenZFile.getNextEntry();
}
sevenZFile.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
if (new File(filePath).exists()) {
new File(filePath).delete();
}
System.out.println("解析压缩文件结束《《《《《《《《《《《《《《《《《《《《《《《");
}
}
/**
* Rar文件抽取
*/