这个压缩包里的都是超级经典的java例子

				
				
				
				Ignoring Comments While Parsing an XML File (Java Developers Almanac Example)
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				The Java Developers Almanac 1.4
				
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				        DOM Parsing Options
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				  e515. Ignoring Comments While Parsing an XML File
				
				By default, Comment nodes are created for each comment in an XML file.
				If it is not necessary to preserve the comments, there is no need to
				create the nodes.  This example demonstrates how to create a parser
				that ignores comments.
				
				
				    try {
				        // Create a builder factory
				        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
				    
				        // Configure it to ignore comments
				        factory.setIgnoringComments(true);
				    
				        // Create the builder and parse the file
				        Document doc = factory.newDocumentBuilder().parse(new File("infilename.xml"));
				    
				        // doc will not contain any Comment nodes
				    } catch (SAXException e) {
				        // A parsing error occurred; the xml input is not valid
				    } catch (ParserConfigurationException e) {
				    } catch (IOException e) {
				    }
				
				Here's some sample input:
				
				    <?xml version="1.0" encoding="UTF-8"?>
				    <!-- comment -->
				    <root>
				        Some text
				        <!-- comment -->
				        Some text
				    </root>
				    <!-- comment -->
				
				and output:
				
				    <?xml version="1.0" encoding="UTF-8"?>
				    <root>
				        Some text
				    
				        Some text
				    </root>
				
				
				
				
				             Related Examples
				
				
				
				
				e514. 
				    Converting CDATA Nodes into Text Nodes While Parsing an XML File
				
				
				
				e516. 
				    Preventing Expansion of Entity References While Parsing an XML File
				
				
				
				
				
				
				
				
				        See also: 
				
				    DOM
				  
				
				
				    SAX
				  
				
				
				
				
				
				
				
				
				
				© 2002 Addison-Wesley.