org.w3c.dom.Document怎么转换成string类型

org.w3c.dom.Document怎么转换成string类型

import java.io.StringWriter;
import javax.xml.transform.Result;
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;
public class ReadDoc {
static void readDoc(Document doc){
try{
DOMSource source = new DOMSource(doc);
StringWriter writer = new StringWriter();
Result result = new StreamResult(writer);
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.transform(source, result);
System.out.println(writer.getBuffer().toString());
}catch(Exception e){}
}
}