extractordriver.java

随书的代码

import org.xml.sax.*;
import org.xml.sax.helpers.XMLReaderFactory;
import java.io.*;


public class ExtractorDriver {

  public static void main(String[] args) {
      
    if (args.length <= 0) {
      System.out.println(
       "Usage: java ExtractorDriver url"
      );
      return;
    }
          
    try {
      XMLReader parser = XMLReaderFactory.createXMLReader();
      
      // Since this just writes onto the console, it's best
      // to use the system default encoding, which is what
      // we get by not specifying an explicit encoding here.
      Writer out = new OutputStreamWriter(System.out);
      ContentHandler handler = new TextExtractor(out);
      parser.setContentHandler(handler);
    
      parser.parse(args[0]);
      
      out.flush();
    }
    catch (Exception e) {
      System.err.println(e); 
    }
  
  } 

}