xml 处理空节点代码,Java代码库,德仔网

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【Java】 xml 处理空节点
作者:胡勇 / 发布于2012/5/14/ 654
xml 处理空节点
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;</div>
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;</div>
<div></div>
<div>public class test {
 private static Log log = LogFactory.getLog(test.class);</div>
<div> public String process(String result) {
 if (log.isDebugEnabled()) {
 log.debug("test ");
 }
 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 DocumentBuilder builder;
 try {
 builder = factory.newDocumentBuilder();
 Document doc = builder.parse(new InputSource(new StringReader(result)));</div>
<div> handleNode(doc);
 result = xmlToString(doc);
 } catch (Exception e) {
 // TODO Auto-generated catch block
 log.error(e.getLocalizedMessage());
 }
 return result;
 }
<div> private static void handleNode(Node node) {
 if (node.getChildNodes().getLength() == 0
 && StringUtils.isBlank(node.getNodeValue())) {
 Node parentNode = node.getParentNode();
 parentNode.removeChild(node);
 handleNode(parentNode);
 return;
 }
 for (int i = 0; i < node.getChildNodes().getLength(); i++) {
 handleNode(node.getChildNodes().item(i));
 }
<div> }
<div> private String xmlToString(Document doc) throws IOException {
 TransformerFactory transfac = TransformerFactory.newInstance();
 StringWriter sw = new StringWriter();
 String xmlString = "";
 try {
 Transformer trans = transfac.newTransformer();
 trans.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
 trans.setOutputProperty(OutputKeys.METHOD, "xml");
 trans.setOutputProperty(OutputKeys.INDENT, "yes");
 trans.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
 trans.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
 StreamResult result = new StreamResult(sw);
 DOMSource source = new DOMSource(doc);
 trans.transform(source, result);
 xmlString = sw.toString();
 } catch (Exception e) {
 log.error(e.getLocalizedMessage());
 } finally {
 sw.close();
 }
 return xmlString;
 }
<div> public static void main(String[] args){
 String str = "<a><b>5555</b><c><e>666</e><f></f><m><n>7777</n></m></c></a>";
ACORDResultProcesser aCORDResultProcesser = new ACORDResultProcesser();
 String xml = aCORDResultProcesser.process(str);
 
 }
<div>}
</div>
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　xml　　处理　
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