java如何将String转为Element

sinall 2008-11-13 04:36:01

如何将一个String（比如<A>abc</A>）转换为一个DOM Element。
用Java标准方法，JDOM等对我没有意义。
谢谢。

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badlove3 2008-11-14

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帮顶~~~~~~~~~~~。。。。。。。。

lxxzhy 2008-11-14

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我是来看7楼的头像的.

tang3dashu 2008-11-13

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package xml2;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.XMLWriter;

/**
* 创建xml文件可以根据你的javabean创建你的xml文件
*
* @author tangyong
*
*/
public class createxml {

public String createxml(String message, String season) {

// 创建dom4j文档对象
Document document = DocumentHelper.createDocument();
// 使用文档对象创建根节点的xml
Element user_table = document.addElement("user_table");
// 根节点的描述
user_table.addComment("用户信息表");

// 添加属性
Element userid = user_table.addElement("userid");
userid.addAttribute ("type", "String");
userid.addAttribute("length", "32");
userid.addAttribute("isNull", "ture");
userid.setText("xb0001");

// 添加属性
Element name = user_table.addElement("name");
name.addAttribute ("type", "String");
name.addAttribute("length", "32");
name.addAttribute("isNull", "ture");
name.setText("唐勇");

Element password = user_table.addElement("password");
password.addAttribute ("type", "String");
password.addAttribute("length", "32");
password.addAttribute("isNull", "ture");
password.setText("123321");

// 此文档的xml的编码格式
document.setXMLEncoding("GBK");
// document.addDocType("WSData",null,"vbao.dtd");

document.addDocType("catalog",
null,"file://c:/Dtds/catalog.dtd");

// 生产xml
try {
XMLWriter xw = new XMLWriter(new FileWriter(new File(
"C:/TangXML/testXML_1.xml")));
xw.write(document);
xw.close();

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return document.asXML();
}

public static void main(String[] args) {

createxml cxml = new createxml();
String xxx = cxml.createxml("11", "22");

/*File file =new File("c:/tangyong.txt");
try {
FileWriter fw=new FileWriter(file);
fw.write("我爱你们");
fw.close();

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}*/

System.out.println(xxx.toString());

}

}

shenjie1989 2008-11-13

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import java.io.File;
import java.io.FileOutputStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Source;
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;
import org.w3c.dom.Element;

public class CreateXMLDocument{

public static void main(String args[]) throws ParserConfigurationException, Exception{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.newDocument();
Element root = doc.createElement("data");
doc.appendChild(root);
root.setAttribute("type", "abc");

//创建文件
File file = new File("d:/testCreatXml.xml");
if( !file.exists()||!file.isFile()){
new FileOutputStream("d:/testCreatXml.xml");
file = new File("d:/testCreatXml.xml");
}
StreamResult streamResult = new StreamResult(file);
Source inputSource = new DOMSource(doc);
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.transform(inputSource, streamResult);

}
}

秦π 2008-11-13

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weiyongzhi2005 2008-11-13

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同意3楼的做法，建议楼主试试
我这试过，给你看看，参孝一下吧

package com.niit.xml;

  

import java.io.File;

import java.io.FileOutputStream;

import java.io.FileWriter;

import java.io.PrintWriter;



import com.niit.xml.XmlWriter; 

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import javax.xml.parsers.*;





import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import org.xml.sax.SAXException;

public class ParseStudents {

	

	DocumentBuilderFactory factory;

	DocumentBuilder builder;

	Document document;

	

	

	

	public void addStudent(File file, Student student){

		 factory = DocumentBuilderFactory.newInstance();

		 factory.setValidating(true);        //有效性检查

		 

		 try{

			 

			 builder = factory.newDocumentBuilder();

			document = builder.parse(file);      //解析文件

			Element root = document.getDocumentElement();

			Element  studentElement = document.createElement("学生");

			Element  nameElement = document.createElement("姓名");

			Element  ageElement = document.createElement("年龄");

			Element  scoreElement = document.createElement("成绩");

			Element  javaElement = document.createElement("Java");

			Element  oracleElement = document.createElement("Oracle");

			Element  xmlElement = document.createElement("Xml");			

			Element  schoolElement = document.createElement("学校");

			

			

			nameElement.appendChild(document.createTextNode(student.getName()));

			ageElement.appendChild(document.createTextNode(String.valueOf(student.getAge())));

			javaElement.appendChild(document.createTextNode(String.valueOf(student.getJava())));

			oracleElement.appendChild(document.createTextNode(String.valueOf(student.getOracle())));

			xmlElement.appendChild(document.createTextNode(String.valueOf(student.getXml())));

			schoolElement.appendChild(document.createTextNode(student.getSchool()));

			

			scoreElement.appendChild(javaElement);

			scoreElement.appendChild(oracleElement);

			scoreElement.appendChild(xmlElement); 

			

			studentElement.setAttribute("SID", student.getSid());

			studentElement.appendChild(nameElement);

			studentElement.appendChild(ageElement);

			studentElement.appendChild(scoreElement);

			studentElement.appendChild(schoolElement);

			

			root.appendChild(studentElement);

		 

		 }catch(Exception e){

			 e.printStackTrace();

		 }

	}

}