java 自己做的对XML文件的读写操作

XML文件实例：
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<Context>
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<Resource auth="Container" maxActive="20" name="sss" password="123"
type="javax.sql.DataSource" />
<Resource auth="Container" maxActive="20" password="9003"
type="javax.sql.DataSource" />
<Resource as="nnnnnnnnnnnn" name="jdbc/sqlserver-database" />
</Context>

Java类：
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.metadata.IIOMetadataNode;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
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.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import com.sun.org.apache.xerces.internal.dom.AttrNSImpl;
import com.sun.org.apache.xerces.internal.impl.xs.opti.DefaultNode;
public class T2 {
/**
* 将修改的内容添加到xml文件中
*
* @param document
* @param filename
* @return
*/
public static boolean doc2XmlFile(Document document, String filename) {
boolean flag = true;
try {
/** 将document中的内容写入文件中 */
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
/** 编码 */
//transformer.setOutputProperty(OutputKeys.ENCODING, "GBK");
DOMSource source = new DOMSource(document);
//判断路径开头有没有“\”如果有则去掉
filename = "C".equals(filename.charAt(0)) ? filename : filename.substring(1);
StreamResult result = new StreamResult(new FileOutputStream(filename));
transformer.transform(source, result);
} catch (Exception ex) {
flag = false;
ex.printStackTrace();
}
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