提取 XML 文档（Extracting XML Document）

以下是从XML文档中提取内容和元数据的程序 -

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.xml.XMLParser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.SAXException;
public class XmlParse {
   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("pom.xml"));
      ParseContext pcontext = new ParseContext();
      //Xml parser
      XMLParser xmlparser = new XMLParser(); 
      xmlparser.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));
      }
   }
}

将上面的代码保存为XmlParse.java ，并使用以下命令从命令提示符编译它 -

javac XmlParse.java
java XmlParse 

下面给出了example.xml文件的快照

本文档具有以下属性 -

如果你执行上面的程序，它会给你以下输出 -

Output -

<b>Contents of the document:</b>
4.0.0
org.apache.tika
tika
1.6
org.apache.tika
tika-core
1.6
org.apache.tika
tika-parsers
1.6
src
maven-compiler-plugin
3.1
1.7
1.7
<b>Metadata of the document:</b>
Content-Type:   application/xml