TIKA提取文本文檔

下面給出的程序是用來提取文本文檔的內容和元數據：

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.sax.BodyContentHandler; import org.apache.tika.parser.txt.TXTParser; import org.xml.sax.SAXException; public class TextParser { public static void main(final String[] args) throws IOException,SAXException, TikaException { //detecting the file type BodyContentHandler handler = new BodyContentHandler(); Metadata metadata = new Metadata(); FileInputStream inputstream = new FileInputStream(new File("example.txt")); ParseContext pcontext=new ParseContext(); //Text document parser TXTParser TexTParser = new TXTParser(); TexTParser.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)); } } }

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

javac TextParser.java
java TextParser

下面給出的是example.txt文件的快照：

文本文件具有以下屬性：

執行上述程序後，將得到下面的輸出。

輸出:

Contents of the document:

At Yiibai.com, we strive hard to provide quality tutorials for self-learning purpose in the domains of Academics, Information Technology, Management and Computer Programming Languages.

The endeavour started by Hema su, who is the founder and the managing director of  Yiibai Pvt. Ltd. He came up with the website yiibai.com in year 2014 with the help of handpicked freelancers, with an array of tutorials for computer programming languages.

Metadata of the document: Content-Encoding: windows-1252 Content-Type: text/plain; charset=windows-1252