void parse(

InputStream stream,

ContentHandler handler,

Metadata metadata,

ParseContext context)

throws IOException, SAXException, TikaException

        <!--tika解析文本内容-->

        <dependency>

            <groupId>org.apache.tika</groupId>

            <artifactId>tika-parsers</artifactId>

            <version>1.17</version>

        </dependency>

    /**

     * 检测文件类型的用法

     */

    public static void test1(){

        File file = new File("G:/tikatest/test.mp4");

        Tika tika = new Tika();

        String filetype = null;

        try {

            filetype = tika.detect(file);

        } catch (IOException e) {

            e.printStackTrace();

        }

        System.out.println(filetype);

    }

    /**

     * 读取txt内容

     */

    public static void test2(){

        File file = new File("G:/tikatest/test.txt");

        Tika tika = new Tika();

        String filecontent = null;

        try {

            filecontent = tika.parseToString(file);

        } catch (IOException e) {

            e.printStackTrace();

        } catch (TikaException e) {

            e.printStackTrace();

        }

        System.out.println("Extracted Content: " + filecontent);

    }

    public static void test3(){

        File file = new File("G:/tikatest/test.txt");

        String s = null;

        try {

            s = FileUtils.readFileToString(file);

        } catch (IOException e) {

            e.printStackTrace();

        }

        System.out.println(s);

    }

    public static void test4(){

        File file=new File("G:/tikatest/test.mp4");

        Parser parser = new AutoDetectParser();

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = null;

        try {

            inputstream = new FileInputStream(file);

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        }

        ParseContext context = new ParseContext();

        try {

            parser.parse(inputstream, handler, metadata, context);

        } catch (IOException e) {

            e.printStackTrace();

        } catch (SAXException e) {

            e.printStackTrace();

        } catch (TikaException e) {

            e.printStackTrace();

        }

        System.out.println(handler.toString());

        //getting the list of all meta data elements

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name + ": " + metadata.get(name));

        }

    }

    public static void test6(){

        //Instantiating a file object

        File file = new File("G:/tikatest/test.txt");

        //Parser method parameters

        Parser parser = new AutoDetectParser();

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream content = null;

        try {

            content = new FileInputStream(file);

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        }

        //Parsing the given document

        try {

            parser.parse(content, handler, metadata, new ParseContext());

        } catch (IOException e) {

            e.printStackTrace();

        } catch (SAXException e) {

            e.printStackTrace();

        } catch (TikaException e) {

            e.printStackTrace();

        }

        LanguageIdentifier object = new LanguageIdentifier(handler.toString());

        System.out.println("Language name :" + object.getLanguage());

    }

    public static void test7() throws IOException, TikaException, SAXException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/4.pdf"));

        ParseContext pcontext = new ParseContext();

        //parsing the document using PDF parser

        PDFParser pdfparser = new PDFParser();

        pdfparser.parse(inputstream, handler, metadata,pcontext);

        //getting the content of the document

        System.out.println("Contents of the PDF :" + handler.toString());

        //getting metadata of the document

        System.out.println("Metadata of the PDF:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name+ " : " + metadata.get(name));

        }

    }

Contents of the PDF :

个人简历

...............................

Metadata of the PDF:

access_permission:extract_for_accessibility : true

pdf:docinfo:title : 个人简历

meta:save-date : 2018-06-12T07:41:54Z

pdf:docinfo:modified : 2018-06-12T07:41:54Z

dcterms:created : 2018-06-12T07:41:54Z

Author : liqiang qiao

date : 2018-06-12T07:41:54Z

access_permission:can_modify : true

access_permission:modify_annotations : true

creator : liqiang qiao

Creation-Date : 2018-06-12T07:41:54Z

title : 个人简历

meta:author : liqiang qiao

access_permission:fill_in_form : true

created : Tue Jun 12 15:41:54 CST 2018

pdf:docinfo:producer : Microsoft® Word 2013

dc:format : application/pdf; version=1.5

access_permission:can_print : true

pdf:docinfo:created : 2018-06-12T07:41:54Z

xmp:CreatorTool : Microsoft® Word 2013

Last-Save-Date : 2018-06-12T07:41:54Z

dc:title : 个人简历

access_permission:assemble_document : true

dcterms:modified : 2018-06-12T07:41:54Z

meta:creation-date : 2018-06-12T07:41:54Z

pdf:docinfo:creator : liqiang qiao

dc:creator : liqiang qiao

pdf:PDFVersion : 1.5

Last-Modified : 2018-06-12T07:41:54Z

modified : 2018-06-12T07:41:54Z

xmpTPg:NPages : 2

access_permission:can_print_degraded : true

pdf:encrypted : false

access_permission:extract_content : true

producer : Microsoft® Word 2013

pdf:docinfo:creator_tool : Microsoft® Word 2013

Content-Type : application/pdf

    public static void test8() throws TikaException, SAXException, IOException {

        //detecting the file type

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/test.docx"));

        ParseContext pcontext = new ParseContext();

        //OOXml parser

        OOXMLParser msofficeparser = new OOXMLParser ();

        msofficeparser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name + ": " + metadata.get(name));

        }

    }

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/user.xlsx"));

        ParseContext pcontext = new ParseContext();

        OOXMLParser msofficeparser = new OOXMLParser ();

        msofficeparser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

    } 

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/test.txt"));

        ParseContext pcontext = new ParseContext();

        TXTParser msofficeparser = new TXTParser();

        msofficeparser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name + ": " + metadata.get(name));

        }

    }

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/index.html"));

        ParseContext pcontext = new ParseContext();

        HtmlParser msofficeparser = new HtmlParser();

        msofficeparser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name + ": " + metadata.get(name));

        }

    }

    public static void test8() throws TikaException, SAXException, IOException {

        String s = FileUtils.readFileToString(new File("G:/tikatest/index.html"));

        System.out.println(s);

    }

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

<style>

    body {

        width: 35em;

        margin: 0 auto;

        font-family: Tahoma, Verdana, Arial, sans-serif;

    }

</style>

</head>

<body>

<h1>Welcome to nginx!</h1>

<p>If you see this page, the nginx web server is successfully installed and

working. Further configuration is required.</p>

<p>For online documentation and support please refer to

<a href="http://nginx.org/">nginx.org</a>.<br/>

Commercial support is available at

<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>

</body>

</html>

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/UUIDUtil.class"));

        ParseContext pcontext = new ParseContext();

        ClassParser parser = new ClassParser();

        parser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name + ": " + metadata.get(name));

        }

    }

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler(10*1024*1024);

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("G:/tikatest/t.jar"));

        ParseContext pcontext = new ParseContext();

        PackageParser parser = new PackageParser ();

        parser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

            System.out.println(name + ": " + metadata.get(name));

        }

    }

Exception in thread "main" org.apache.tika.sax.WriteOutContentHandler$WriteLimitReachedException: Your document contained more than 100000 characters, and so your requested limit has been reached. To receive the full text of the document, increase your limit. (Text up to the limit is however available).

    at org.apache.tika.sax.WriteOutContentHandler.characters(WriteOutContentHandler.java:141)

    at org.apache.tika.sax.ContentHandlerDecorator.characters(ContentHandlerDecorator.java:146)

    at org.apache.tika.sax.xpath.MatchingContentHandler.characters(MatchingContentHandler.java:85)

BodyContentHandler handler = new BodyContentHandler(10*1024*1024);

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("g:/tikatest/5.jpeg"));

        ParseContext pcontext = new ParseContext();

        JpegParser  JpegParser = new JpegParser();

        JpegParser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

           System.out.println(name + ": " + metadata.get(name));

        }

    }

    public static void test8() throws TikaException, SAXException, IOException {

        BodyContentHandler handler = new BodyContentHandler();

        Metadata metadata = new Metadata();

        FileInputStream inputstream = new FileInputStream(new File("g:/tikatest/test.mp4"));

        ParseContext pcontext = new ParseContext();

        MP4Parser MP4Parser = new MP4Parser();

        MP4Parser.parse(inputstream, handler, metadata,pcontext);

        System.out.println("Contents of the document:" + handler.toString());

        System.out.println("Metadata of the document:");

        String[] metadataNames = metadata.names();

        for(String name : metadataNames) {

           System.out.println(name + ": " + metadata.get(name));

        }

    }

BodyContentHandler handler = new BodyContentHandler(10*1024*1024);