TIKA提取PDF

下面給出的程序是用來提取PDF文件內容和元數據。

import java.io.File; import java.io.FileInputStream; import java.io.IOException; import org.apache.tika.exception.TikaException; import org.apache.tika.metadata.Metadata; import org.apache.tika.parser.ParseContext; import org.apache.tika.parser.pdf.PDFParser; import org.apache.tika.sax.BodyContentHandler; import org.xml.sax.SAXException; public class PdfParse { public static void main(final String[] args) throws IOException,TikaException { BodyContentHandler handler = new BodyContentHandler(); Metadata metadata = new Metadata(); FileInputStream inputstream = new FileInputStream(new File("Example.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)); } } }

保存上述代碼保存爲PdfParse.java，並通過使用下面的命令從命令提示編譯：

javac PdfParse.java
java PdfParse

下面給出的是Example.pdf文件的快照：

PDF

PDF文檔具有以下屬性：

PDF

執行上述程序後，會得到如下的輸出

輸出:

Contents of the PDF:

Apache Tika is a framework for content type detection and content extraction
which was designed by Apache software foundation. It detects and extracts metadata
and structured text content from different types of documents such as spreadsheets,
text documents, images or PDFs including audio or video input formats to certain extent.

Metadata of the PDF:

dcterms:modified : 2014-09-28T12:31:16Z
meta:creation-date : 2014-09-28T12:31:16Z
meta:save-date : 2014-09-28T12:31:16Z
dc:creator : Krishna Kasyap
pdf:PDFVersion : 1.5
Last-Modified : 2014-09-28T12:31:16Z
Author : Krishna Kasyap
dcterms:created : 2014-09-28T12:31:16Z
date : 2014-09-28T12:31:16Z
modified : 2014-09-28T12:31:16Z
creator : Krishna Kasyap
xmpTPg:NPages : 1
Creation-Date : 2014-09-28T12:31:16Z
pdf:encrypted : false
meta:author : Krishna Kasyap
created : Sun Sep 28 05:31:16 PDT 2014
dc:format : application/pdf; version=1.5
producer : Microsoft® Word 2013
Content-Type : application/pdf
xmp:CreatorTool : Microsoft® Word 2013
Last-Save-Date : 2014-09-28T12:31:16Z

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