前言

Apache Tika提取文件整理如下，如有特定的文件需要提取可以先參照【部分文件提取失敗】章節(jié)對照，以免浪費您的寶貴時間，如有問題或者解決辦法還望大牛不吝賜教，小編在此謝過！

tika簡介

Tika全名Apache Tika，是用于文件類型檢測和從各種格式的文件中提取內(nèi)容的一個庫。
Tika使用現(xiàn)有的各種文件解析器和文檔類型的檢測技術(shù)來檢測和提取數(shù)據(jù)。
使用Tika，可以輕松提取到的不同類型的文件內(nèi)容，如電子表格，文本文件，圖像，PDF文件甚至多媒體輸入格式，在一定程度上提取結(jié)構(gòu)化文本以及元數(shù)據(jù)。
統(tǒng)一解析器接口：Tika封裝在一個單一的解析器接口的第三方解析器庫。由于這個特征，用戶逸出從選擇合適的解析器庫的負(fù)擔(dān)，并使用它，根據(jù)所遇到的文件類型。
使用的Tika facade類是從Java調(diào)用Tika的最簡單和直接的方式，而且也沿用了外觀的設(shè)計模式?？梢栽?Tika API的org.apache.tika包Tika 找到外觀facade類。
Tika提供用于解析不同文件格式的一個通用API。它采用83個現(xiàn)有的專業(yè)解析器庫，所有這些解析器庫是根據(jù)一個叫做Parser接口單一接口封裝。

Tika支持的文件格式

文件格式	類庫	Tika中的類
XML	org.apache.tika.parser.xml	XMLParser
HTML	org.apache.tika.parser.htmll and it uses Tagsoup Library	HtmlParser
MS-Office compound document Ole2 till 2007 ooxml 2007 onwards	org.apache.tika.parser.microsoftorg.apache.tika.parser.microsoft.ooxml and it uses Apache Poi library	OfficeParser(ole2)OOXMLParser(ooxml)
OpenDocument Format openoffice	org.apache.tika.parser.odf	OpenOfficeParser
portable Document Format(PDF)	org.apache.tika.parser.pdf and this package uses Apache PdfBox library	PDFParser
Electronic Publication Format (digital books)	org.apache.tika.parser.epub	EpubParser
Rich Text format	org.apache.tika.parser.rtf	RTFParser
Compression and packaging formats	org.apache.tika.parser.pkg and this package uses Common compress library	PackageParser and CompressorParser and its sub-classes
Text format	org.apache.tika.parser.txt	TXTParser
Feed and syndication formats	org.apache.tika.parser.feed	FeedParser
Audio formats	org.apache.tika.parser.audio and org.apache.tika.parser.mp3	AudioParser MidiParser Mp3- for mp3parser
Imageparsers	org.apache.tika.parser.jpeg	JpegParser-for jpeg images
Videoformats	org.apache.tika.parser.mp4 and org.apache.tika.parser.video this parser internally uses Simple Algorithm to parse flash video formats	Mp4parser FlvParser
java class files and jar files	org.apache.tika.parser.asm	ClassParser CompressorParser
Mobxformat (email messages)	org.apache.tika.parser.mbox	MobXParser
Cad formats	org.apache.tika.parser.dwg	DWGParser
FontFormats	org.apache.tika.parser.font	TrueTypeParser
executable programs and libraries	org.apache.tika.parser.executable	ExecutableParser

MAVEN依賴

目前已經(jīng)有2.8.0版本，有興趣的朋友可以嘗試一下，使用感受可以和小編交流一下哦~

<repositories><repository><id>com.e-iceblue</id><name>e-iceblue</name><url>http://repo.e-iceblue.com/nexus/content/groups/public/</url></repository>
</repositories><dependencies><dependency><groupId>org.apache.tika</groupId><artifactId>tika-parsers</artifactId><version>1.24</version></dependency><dependency><groupId>org.apache.tika</groupId><artifactId>tika-core</artifactId><version>1.24</version></dependency>
</dependencies>

JAVA程序

package com.xxx.xxx.carry;import cn.hutool.core.lang.UUID;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
import org.apache.commons.io.FilenameUtils;
import org.apache.tika.config.TikaConfig;
import org.apache.tika.detect.Detector;
import org.apache.tika.exception.TikaException;
import org.apache.tika.extractor.EmbeddedDocumentExtractor;
import org.apache.tika.extractor.ParsingEmbeddedDocumentExtractor;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.mime.MimeTypeException;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.Parser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;public class CarryingFileUtils {// 創(chuàng)建解析器,使用AutoDetectParser可以自動檢測一個最合適的解析器private static Parser parser = new AutoDetectParser();private static Detector detector = ((AutoDetectParser) parser).getDetector();private static TikaConfig config = TikaConfig.getDefaultConfig();public static void extract(InputStream is, Path outputDir) throws SAXException, TikaException, IOException {Metadata m = new Metadata();// 指定最基本的變量信息(即存放一個所使用的解析器對象）ParseContext c = new ParseContext();BodyContentHandler h = new BodyContentHandler(-1);c.set(Parser.class, parser);EmbeddedDocumentExtractor ex = new MyEmbeddedDocumentExtractor(outputDir, c);c.set(EmbeddedDocumentExtractor.class, ex);// InputStream-----指定文件輸入流// ContentHandler--指定要解析文件的哪一個內(nèi)容,它有一個實現(xiàn)類叫做BodyContentHandler,即專門用來解析文檔內(nèi)容的// Metadata--------指定解析文件時,存放解析出來的元數(shù)據(jù)的Metadata對象// ParseContext----該對象用于存放一些變量信息,該對象最少也要存放所使用的解析器對象,這也是其存放的最基本的變量信息parser.parse(is, h, m, c);}private static class MyEmbeddedDocumentExtractor extends ParsingEmbeddedDocumentExtractor {private final Path outputDir;private int fileCount = 0;private MyEmbeddedDocumentExtractor(Path outputDir, ParseContext context) {super(context);this.outputDir = outputDir;}@Overridepublic boolean shouldParseEmbedded(Metadata metadata) {return true;}@Overridepublic void parseEmbedded(InputStream stream, ContentHandler handler, Metadata metadata, boolean outputHtml) throws IOException {//try to get the name of the embedded file from the metadataString name = metadata.get(Metadata.RESOURCE_NAME_KEY);if (name == null) {name = "file_" + fileCount++;} else {//make sure to select only the file name (not any directory paths//that might be included in the name) and make sure//to normalize the namename = name.replaceAll("\u0000", " ");int prefix = FilenameUtils.getPrefixLength(name);if (prefix > -1) {name = name.substring(prefix);}name = FilenameUtils.normalize(FilenameUtils.getName(name));}//now try to figure out the right extension for the embedded fileMediaType contentType = detector.detect(stream, metadata);if (name.indexOf('.') == -1 && contentType != null) {try {name += config.getMimeRepository().forName(contentType.toString()).getExtension();} catch (MimeTypeException e) {e.printStackTrace();}}// 夾帶文件名編碼格式調(diào)整name = new String(name.getBytes("ISO-8859-1"), "GBK");Path outputFile = outputDir.resolve(name);if (Files.exists(outputFile)) {outputFile = outputDir.resolve(UUID.randomUUID().toString() + "-" + name);}Files.createDirectories(outputFile.getParent());String formart = name.substring(name.lastIndexOf(".") + 1).toUpperCase();// 去除無關(guān)文件if (!"EMF,WMF".contains(formart)) {Files.copy(stream, outputFile);}}}
}

JAVA測試程序

package com.xxx.xxx.utils;import com.xxx.xxx.carry.CarryingFileUtils;import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.nio.file.Path;
import java.nio.file.Paths;public class Jkx {public static void main(String[] args) {// 提取文件String inputFilrPath = "C:\\Users\\Administrator\\Desktop\\file_check\\qiantao\\Excel文件嵌套doc.xlsx";// 輸出文件路徑String outFilePath = "C:\\Users\\Administrator\\Desktop\\file_check\\nest_file\\";try {InputStream inputStream = new BufferedInputStream(new FileInputStream(inputFilrPath));Path outFileUrl = Paths.get(outFilePath);CarryingFileUtils.extract(inputStream, outFileUrl);} catch (Exception e) {e.printStackTrace();}}
}

測試文件

測試文件_百度網(wǎng)盤提取鏈接

測試結(jié)果

部分文件提取失敗

提取失敗文件整理如下，如有大牛有解決辦法還望不吝賜教：

文件類型	嵌套文件類型
.dot	.doc
.doc	.docm
.doc	.wps
.wps	.wps
.xls	.xls
.et	.et
.xls	.et
.xltm	.ett
.pps	.ppt
.html	.wps
.mht	.wps
.mhtml	.wps
.pot	.pot
.cebx	.*
.dot	.doc
.dps	.dps
.pptx	.dps
.dpt	.dps
.docx	.eid
.doc	.eis
.png	.odp
.png	.ods
.png	.odt

參考連接

1. https://www.jianshu.com/p/407735f03094?v=1672195773961