/**
* Copyright 2007-2010 非也
* All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License v3 as published by the Free Software
* Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, see http://www.gnu.org/licenses/lgpl.html.
*
*/
package org.fireflow.pdl.fpdl.io;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
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;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.bootstrap.DOMImplementationRegistry;
import org.w3c.dom.ls.DOMImplementationLS;
import org.w3c.dom.ls.LSSerializer;
/**
*
* @author 非也 nychen2000@163.com Fire Workflow 官方网站：www.firesoa.com 或者
* www.fireflow.org
*
*/
public class CDataTest {
/**
* @param args
*/
public static void main(String[] args) throws Exception{
// TODO Auto-generated method stub
DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();
Document doc0 = docBuilder.newDocument();
//本行特别重要，指示解析器是否转换特殊字符.
final Node pi =
doc0.createProcessingInstruction(StreamResult.PI_DISABLE_OUTPUT_ESCAPING,"");
doc0.appendChild(pi);
// 准备数据
String data0 = "Line1\r\n\r\nLine2& <>";
// 产生doc
Element root0 = doc0.createElement("root");
doc0.appendChild(root0);
CDATASection cdata = doc0.createCDATASection(data0);
root0.appendChild(cdata);
//方案1 输出doc
TransformerFactory transformerFactory = TransformerFactory
.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
transformer.setOutputProperty(
"{http://xml.apache.org/xslt}indent-amount", "2");
ByteArrayOutputStream out = new ByteArrayOutputStream();
transformer.transform(new DOMSource(doc0), new StreamResult(out));
out.flush();
String xmlStr1 = out.toString("UTF-8");
System.out.println("=====方案1输出的xml是========"+xmlStr1.length());
System.out.println(xmlStr1);
// 读取方案1的Doc输出
ByteArrayInputStream in1 = new ByteArrayInputStream(xmlStr1.getBytes("UTF-8"));
Document doc1 = docBuilder.parse(in1);
Element root1 = doc1.getDocumentElement();
String data1 = loadCDATA(root1);
System.out.println("==========重新读取方案1的输出==================");
System.out.println("===========data0 长度是："+data0.length()+"内容是：");
System.out.println(data0);
System.out.println("===========data1 长度是："+data1.length()+"内容是：");
System.out.println(data1);
//方案2输出
DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
DOMImplementationLS impl =
(DOMImplementationLS)registry.getDOMImplementation("LS");
LSSerializer writer = impl.createLSSerializer();
String xmlStr2 = writer.writeToString(doc0);
System.out.println("=====方案2输出的xml是========"+xmlStr2.length());
System.out.println(xmlStr2);
//读取方案2的输出
ByteArrayInputStream in2 = new ByteArrayInputStream(xmlStr2.getBytes("UTF-16"));
Document doc2 = docBuilder.parse(in2);
Element root2 = doc2.getDocumentElement();
String data2 = loadCDATA(root2);
System.out.println("==========重新读取方案1的输出==================");
System.out.println("===========data0 长度是："+data0.length()+"内容是：");
System.out.println(data0);
System.out.println("===========data2 长度是："+data2.length()+"内容是：");
System.out.println(data2);
}
protected static String loadCDATA(Element cdataElement){
if (cdataElement==null){
return "";
}else{
NodeList nodeList = cdataElement.getChildNodes();
if(nodeList!=null && nodeList.getLength()>0){
int length = nodeList.getLength();
for (int i=0;i<length;i++){
org.w3c.dom.Node node = nodeList.item(i);
if(node.getNodeType()==org.w3c.dom.Node.CDATA_SECTION_NODE){
CDATASection cdataSection = (CDATASection)node;
System.out.println("=================textcontent is ========="+cdataSection.getTextContent().length());
System.out.println(cdataSection.getTextContent());
System.out.println("=================node value is==================="+cdataSection.getNodeValue().length());
System.out.println(cdataSection.getNodeValue());
System.out.println("====================whole text content is "+cdataSection.getWholeText().length());
System.out.println(cdataSection.getWholeText());
System.out.println("==================data is ========="+cdataSection.getWholeText().length());
System.out.println(cdataSection.getData());
System.out.println("=====================================");
// return cdataSection.getData();
}
}
}
System.out.println("--------cdataElement getTextContent -----");
System.out.println(cdataElement.getTextContent());
System.out.println("--------cdataElement getNodeValue -----");
System.out.println(cdataElement.getNodeValue());
return cdataElement.getTextContent();
}
}
}