基于nat的网吧典型应用

//获取网页里面的keywords和description
public static void main(String[] argv) throws Exception {

BufferedReader in = new BufferedReader(new FileReader("d:/163.html"));
DOMParser parser = new DOMParser();
parser.setProperty(
"http://cyberneko.org/html/properties/default-encoding",
"gb2312");
parser.parse(new InputSource(in));

Document doc = parser.getDocument();
NodeList list = doc.getElementsByTagName("META");
for(int i = 0, n = list.getLength(); i < n ; i++){
Element e = (Element) list.item(i);
if(e.getAttribute("name").equalsIgnoreCase("keywords")){
String keywords = e.getAttribute("content");
System.out.println("keywords: " + keywords);
}
if(e.getAttribute("name").equalsIgnoreCase("description")){
String description = e.getAttribute("content");
System.out.println(description);
}
}
}

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//2、test使用DOMFragmentParser，提取所有正文，由于没有过滤一些没用的标签，所以会有没用的信息打印，这个可以再事先过滤一下。

public static void main(String[] argv) throws Exception {
DOMFragmentParser parser = new DOMFragmentParser();
HTMLDocument document = new HTMLDocumentImpl();
DocumentFragment fragment = document.createDocumentFragment();
parser.parse("http://sports.sina.com.cn/f1/2009-09-21/20104599271.shtml", fragment);
print(fragment, "");
}

/** Prints a node's class name. */
public static void print(Node node, String indent) {

//		System.out.println(indent + node.getClass().getName());
//		System.out.println(node.getNodeType());

if (node.getNodeType() == Node.TEXT_NODE) {
System.out.println(indent + node.getNodeValue());
}
Node child = node.getFirstChild();
while (child != null) {
print(child, indent + " ");
child = child.getNextSibling();
}
}

}