Java HTML/XML - 如何將節(jié)點(diǎn)從xml文檔附加到現(xiàn)有xml文檔

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import java.io.StringBufferInputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
public class Main {
  private static final String studentData =
    "  <students>" +
    "    <student>" +
    "        <name>a</name>" +
    "    </student>" +
    "    <student>" +
    "        <name>b</name>" +
    "    </student>" +
    "    <student>" +
    "        <name>c</name>" +
    "    </student>" +
    "</students>";
  private static final String studentB =
    "    <student>" +
    "        <name>d</name>" +
    "    </student>";
  private static DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
  public static void main(String[] args) throws Exception{
 
 
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