使用工厂模式或dom4j 获取document（保存和读取xml文件）

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
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.xml.sax.SAXException;
//工厂模式获取document
public class GetFactory {

public static Document getDocument(String path) throws Exception{ 

DocumentBuilderFactory documentBuilder=DocumentBuilderFactory.newInstance();
DocumentBuilder builder=documentBuilder.newDocumentBuilder();
Document document=builder.parse(path);
return document;
}
public static void saveXML(Document document,String path){
try {
TransformerFactory factory=TransformerFactory.newInstance();
Transformer former=factory.newTransformer();
former.setOutputProperty(“encoding”, “GBK”);
DOMSource source=new DOMSource(document);
StreamResult result=new StreamResult(new FileOutputStream(path));
former.transform(source, result);
} catch (TransformerConfigurationException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (TransformerException e) {
e.printStackTrace();
}
}

}

使用dom4j 获取document

import java.io.FileOutputStream;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
/**

• 工具类
• @author Administrator

*/
public class Dom4jXML {
public static Document getDocument(String path) throws Exception {
SAXReader read = new SAXReader();
Document document = read.read(path);
return document;
}

public static void saveXML(Document document, String path) throws Exception {
	FileOutputStream fos = new FileOutputStream(path);
	OutputFormat format = OutputFormat.createPrettyPrint();
	format.setEncoding("utf-8");
	XMLWriter writer = new XMLWriter(fos, format);
	writer.write(document);
	writer.close();
	fos.close();
} 

}

本文地址：https://blog.csdn.net/m0_47460678/article/details/107880921