java 生成xml文件

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import java.io.File;
import java.io.FileOutputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Source;
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;
public class CreateXMLDocument{
public static void main(String args[]) throws ParserConfigurationException, Exception{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.newDocument();
Element root = doc.createElement("data");
doc.appendChild(root);
root.setAttribute("type", "abc");
//创建文件
File file = new File("d:/testCreatXml.xml");
if( !file.exists()||!file.isFile()){
new FileOutputStream("d:/testCreatXml.xml");
file = new File("d:/testCreatXml.xml");
}
StreamResult streamResult = new StreamResult(file);
Source inputSource = new DOMSource(doc);
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.transform(inputSource, streamResult);
}
}


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