package com.lanyuan.util;
import java.io.File;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
public class PaseXml {
public static boolean doc2XmlFile(Document document, String filename) {
boolean flag = true;
try {
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(new File(filename));
transformer.transform(source, result);
} catch (Exception ex) {
flag = false;
ex.printStackTrace();
}
return flag;
}
public static Document load(String filename) {
Document document = null;
try {
// 1.得到DOM解析器的工厂实例
DocumentBuilderFactory factory = DocumentBuilderFactory
.newInstance();
// 2.从DOM工厂里获取DOM解析器
DocumentBuilder builder = factory.newDocumentBuilder();
// 3.解析XML文档，得到document，即DOM树
document = builder.parse(new File(filename));
//Document对象调用normalize()，可以去掉XML文档中作为格式化内容的空白而映射在DOM树中的不必要的Text Node对象。
//否则你得到的DOM树可能并不如你所想象的那样。特别是在输出的时候，这个normalize()更为有用。
document.normalize();
} catch (Exception ex) {
ex.printStackTrace();
}
return document;
}
public static void xmlUpdateDemo() {
String s = PaseXml.class.getResource("/").toString();
s = s.substring(0,s.indexOf("WEB-INF/"));
s = s.substring(s.indexOf("D:/"));
s = s+"xml/images.xml";
Document document = load(s);
try {
NodeList list=document.getElementsByTagName("menu");
for(int i=0;i<list.getLength();i++){
Element brandElement=(Element) list.item(i);
brandElement.setAttribute("a", "00");
}
}catch (Exception e) {
}
doc2XmlFile(document, s);
}
public static void main(String args[]) throws Exception {
//PaseXml.xmlUpdateDemo();
HttpClientUtils httpClientUtils = new HttpClientUtils();
List<String> ls= httpClientUtils.getLinkTagsContent("http://v.youku.com/v_show/id_XNTM4NjY5MDgw.html?f=19121485");
for (String object : ls) {
System.out.println(object);
}
}
}