java删除xml文件节点，主要方式是先解析整个xml文件，然后根据节点的编号，进行删除，代码如下:
package test;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
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;
import org.w3c.dom.Text;
import org.xml.sax.SAXException;
public class XmlOprate {
Document doc;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder;
NodeList imags;
String path;
public NodeList getImags() {
return imags;
}
public void setImags(NodeList imags) {
this.imags = imags;
}
/**
* 构造方法
* @param path:xml文件的路径
* @param nodes：要解析的xml节点名称
*/
public XmlOprate(String path) {
super();
this.path = path;
System.out.println(System.getProperty("user.dir"));
}
/**
* 解析XML
* @param path
*/
public void readXml(){
try {
builder = factory.newDocumentBuilder();
Document doc=builder.parse(path);
doc.normalize();
NodeList imags =doc.getElementsByTagName("imags");
this.setImags(imags);
for (int i=0;iElement link=(Element) imags.item(i);
System.out.print("title: ");
System.out.println(link.getElementsByTagName("title").item(0).getFirstChild().getNodeValue());
System.out.print("URL: ");
System.out.println(link.getElementsByTagName("url").item(0).getFirstChild().getNodeValue());
System.out.print("imgsrc: ");
System.out.println(link.getElementsByTagName("imgsrc").item(0).getFirstChild().getNodeValue());
System.out.println();
}
}catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* delete xml code //删除某个节点
* @param path
*/
public void delXmlCode(){
try {
builder = factory.newDocumentBuilder(); //拿到树节点
doc=builder.parse(path);
doc.normalize();
NodeList imags =doc.getElementsByTagName("imags"); //拿到某个节点的ID，接着进行删除
Element elink=(Element) imags.item(0);
elink.removeChild(elink.getElementsByTagName("imgsrc").item(0));
elink.removeChild(elink.getElementsByTagName("title").item(0));
elink.removeChild(elink.getElementsByTagName("url").item(0));
doc.getFirstChild().removeChild(elink);
TransformerFactory tFactory =TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(new java.io.File(path));
transformer.transform(source, result);
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (TransformerConfigurationException e) {
e.printStackTrace();
} catch (TransformerException e) {
e.printStackTrace();
}
}
}
