Posted on 2008-02-21 18:29
leekiang 閱讀(2898)
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??? import
?org.cyberneko.html.parsers.DOMFragmentParser;
???? import org.apache.html.dom.HTMLDocumentImpl;
????
import
?org.w3c.dom.DocumentFragment;
????
import
?org.w3c.dom.Node;
????
import
?org.w3c.dom.NodeList;
????
import
?org.xml.sax.InputSource;
????
import
?org.xml.sax.SAXException;
????
/**
?????*?從html中抽取純文本
?????*?
?????*?
@param
?content
?????*?
@return
?????*?
@throws
?UnsupportedEncodingException
?????
*/
????
public
?String?extractTextFromHTML(String?content)
????????????
throws
?UnsupportedEncodingException?{
????????DOMFragmentParser?parser?
=
?
new
?DOMFragmentParser();
????????DocumentFragment?node?
=
?
new
?HTMLDocumentImpl().createDocumentFragment();
????????InputStream?is?
=
?
new
?ByteArrayInputStream(content.getBytes());
????????
try
?{
????????????parser.parse(
new
?InputSource(is),?node);
????????}?
catch
?(IOException?e)?{
????????????e.printStackTrace();
????????}?
catch
?(SAXException?se)?{
????????????se.printStackTrace();
????????}
????????StringBuffer?newContent?
=
?
new
?StringBuffer();
????????
this
.getText(newContent,?node);
????????String?str?
=
?(
new
?String(
????????????????newContent.toString().getBytes(
"
Windows-1252
"
),?
"
GBK
"
));
????????
return
?str;
????}
????
private
?
void
?getText(StringBuffer?sb,?Node?node)?{
????????
if
?(node.getNodeType()?
==
?Node.TEXT_NODE)?{
????????????sb.append(node.getNodeValue());
????????}
????????NodeList?children?
=
?node.getChildNodes();
????????
if
?(children?
!=
?
null
)?{
????????????
int
?len?
=
?children.getLength();
????????????
for
?(
int
?i?
=
?
0
;?i?
<
?len;?i
++
)?{
????????????????getText(sb,?children.item(i));
????????????}
????????}
????}
1，nekohtml1.9.6.1版本用到了jdk5的Arrays.hashCode等方法，為兼容jdk1.4,
? 故采用nekohtml1.9.6版本
2，需要xerces.jar支持
3，
?? http://hi.baidu.com/walkandsing/blog/item/f5743634c6ba2e3a5bb5f5e5.html
?? http://blog.csdn.net/zhou2002/archive/2008/01/19/2053911.aspx
?? http://playfish.javaeye.com/blog/150184
4,
python解析html
http://lenciel.cn/docs/python-parser-of-xml/
http://hi.baidu.com/javalang/blog/item/84bac4bf731fb80f18d81fe1.html
ruby用hpricot