/* 读取XML
import javax.xml.parsers.*;
import org.w3c.dom.*;public class xmldisplay {
public static void main(String args[]){
try{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder=factory.newDocumentBuilder();
Document doc=builder.parse("links.xml");
doc.normalize();
NodeList links =doc.getElementsByTagName("link");
// for (int i=0;i<links.getLength();i++){
Element link=(Element) links.item(0);
System.out.print("Content: ");
System.out.println(link.getElementsByTagName("text").item(0).getFirstChild().getNodeValue());
System.out.print("URL: ");
System.out.println(link.getElementsByTagName("url").item(0).getFirstChild().getNodeValue());
System.out.print("Author: ");
System.out.println(link.getElementsByTagName("author").item(0).getFirstChild().getNodeValue());
System.out.print("Date: ");
Element linkdate=(Element) link.getElementsByTagName("date").item(0);
String day=linkdate.getElementsByTagName("day").item(0).getFirstChild().getNodeValue();
String month=linkdate.getElementsByTagName("month").item(0).getFirstChild().getNodeValue();
String year=linkdate.getElementsByTagName("year").item(0).getFirstChild().getNodeValue();
System.out.println(day+"-"+month+"-"+year);
System.out.print("Description: ");
System.out.println(link.getElementsByTagName("description").item(0).getFirstChild().getNodeValue());
System.out.println();
// }
}catch(Exception e){
e.printStackTrace();
}}
}
import javax.xml.parsers.*;
import org.w3c.dom.*;public class xmldisplay {
public static void main(String args[]){
try{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder=factory.newDocumentBuilder();
Document doc=builder.parse("links.xml");
doc.normalize();
NodeList links =doc.getElementsByTagName("link");
// for (int i=0;i<links.getLength();i++){
Element link=(Element) links.item(0);
System.out.print("Content: ");
System.out.println(link.getElementsByTagName("text").item(0).getFirstChild().getNodeValue());
System.out.print("URL: ");
System.out.println(link.getElementsByTagName("url").item(0).getFirstChild().getNodeValue());
System.out.print("Author: ");
System.out.println(link.getElementsByTagName("author").item(0).getFirstChild().getNodeValue());
System.out.print("Date: ");
Element linkdate=(Element) link.getElementsByTagName("date").item(0);
String day=linkdate.getElementsByTagName("day").item(0).getFirstChild().getNodeValue();
String month=linkdate.getElementsByTagName("month").item(0).getFirstChild().getNodeValue();
String year=linkdate.getElementsByTagName("year").item(0).getFirstChild().getNodeValue();
System.out.println(day+"-"+month+"-"+year);
System.out.print("Description: ");
System.out.println(link.getElementsByTagName("description").item(0).getFirstChild().getNodeValue());
System.out.println();
// }
}catch(Exception e){
e.printStackTrace();
}}
}
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.*;
public class xmlwriter {public static void main(String args[]){
try{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder=factory.newDocumentBuilder();
Document doc=builder.parse("links.xml");
doc.normalize();
//---取得变量----
String text="Wudong's Homepage";
String url="www.wudong.com";
String author="Wudong Liu";
String discription="A site from Wudong Liu, give u lots of suprise!!!";
//-------------
Text textseg;
Element link=doc.createElement("link"); Element linktext=doc.createElement("text");
textseg=doc.createTextNode(text);
linktext.appendChild(textseg);
link.appendChild(linktext); Element linkurl=doc.createElement("url");
textseg=doc.createTextNode(url);
linkurl.appendChild(textseg);
link.appendChild(linkurl); Element linkauthor=doc.createElement("author");
textseg=doc.createTextNode(author);
linkauthor.appendChild(textseg);
link.appendChild(linkauthor); java.util.Calendar rightNow = java.util.Calendar.getInstance();
String day=Integer.toString(rightNow.get(java.util.Calendar.DAY_OF_MONTH));
String month=Integer.toString(rightNow.get(java.util.Calendar.MONTH));
String year=Integer.toString(rightNow.get(java.util.Calendar.YEAR));
Element linkdate=doc.createElement("date"); Element linkdateday=doc.createElement("day");
textseg=doc.createTextNode(day);
linkdateday.appendChild(textseg); Element linkdatemonth=doc.createElement("month");
textseg=doc.createTextNode(month);
linkdatemonth.appendChild(textseg);
Element linkdateyear=doc.createElement("year");
textseg=doc.createTextNode(year);
linkdateyear.appendChild(textseg); linkdate.appendChild(linkdateday);
linkdate.appendChild(linkdatemonth);
linkdate.appendChild(linkdateyear);
link.appendChild(linkdate); Element linkdiscription=doc.createElement("description");
textseg=doc.createTextNode(discription);
linkdiscription.appendChild(textseg);
link.appendChild(linkdiscription); doc.getDocumentElement().appendChild(link); TransformerFactory tFactory =TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new java.io.File("links.xml"));
transformer.transform(source, result);
}catch(Exception e){
e.printStackTrace();
}
}
}
*/import javax.xml.parsers.*;
import org.w3c.dom.*;public class test_xmldisplay {
public static void main(String args[]){
try{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder=factory.newDocumentBuilder();
Document doc=builder.parse("links.xml");
doc.normalize();
NodeList links =doc.getElementsByTagName("link");
// for (int i=0;i<links.getLength();i++){
Element link=(Element) links.item(0);
// 读取 text的项
//System.out.print("Content: ");
// System.out.println(link.getElementsByTagName("text").item(0).getFirstChild().getNodeValue());
//修改text的值
Node ele = doc.getDocumentElement().getFirstChild().getFirstChild().getLastChild();
ele.setNodeVale("haha");
//读取 其他的项
System.out.print("URL: ");
System.out.println(link.getElementsByTagName("url").item(0).getFirstChild().getNodeValue());
System.out.print("Author: ");
System.out.println(link.getElementsByTagName("author").item(0).getFirstChild().getNodeValue());
System.out.print("Date: ");
Element linkdate=(Element) link.getElementsByTagName("date").item(0);
String day=linkdate.getElementsByTagName("day").item(0).getFirstChild().getNodeValue();
String month=linkdate.getElementsByTagName("month").item(0).getFirstChild().getNodeValue();
String year=linkdate.getElementsByTagName("year").item(0).getFirstChild().getNodeValue();
System.out.println(day+"-"+month+"-"+year);
System.out.print("Description: ");
System.out.println(link.getElementsByTagName("description").item(0).getFirstChild().getNodeValue());
System.out.println();
// }
}catch(Exception e){
e.printStackTrace();
}}
}
请欢迎大家与我一起讨论XML