js处理XML

�~�来如此 — Sat, 08 Mar 2008 10:56:00 GMT

var table = null;
var tbname = null;
var fields = null;
var xmlobject = null;
var fid = null;
var fname = null;
var xmlstring = "

abcfdfddfddffdfddfddf

xmlstring += "

fghdfdfdf

xmlstring    +="";
try{
      if (window.ActiveXObject)
      {
          xmlobject =new ActiveXObject("Microsoft.XMLDOM");
          xmlobject.async="false";
          xmlobject.loadXML(xmlstring);
      }

      // 用于 Mozilla, Firefox, Opera, �{�浏览器的代码：
      else
      {
         var parser=new DOMParser();
         xmlobject =parser.parseFromString(xmlstring,"text/xml");
      }
}catch(e){alert("error");}

var tables = xmlobject.getElementsByTagName("table");
for(var i=0;i {
    table = tables.item(i);
    tbname = table.getElementsByTagName("tbname")[0].firstChild.nodeValue;

    fields = table.getElementsByTagName("field");
    for(var    j=0;j     {
     sfield = fields.item(j);
     fid= sfield.getElementsByTagName("fid")[0].firstChild.nodeValue;
     fname = sfield.getElementsByTagName("fname")[0].firstChild.nodeValue;
      }
}

�~�来如此 2008-03-08 18:56 发表评论

dom4j解析XML

�~�来如此 — Fri, 02 Nov 2007 10:00:00 GMT

dom4j 是一�U�解�?XML 文档的开放源代码 XML 框架,�?W3C DOM API 相比,使用 dom4j 所包含的解析器的好处是 dom4j 拥有本地�?XPath 支持.DOM 解析器不支持使用 XPath 选择节点.

该解析器可以�?http://dom4j.org/ 获取.
java 代码

java 代码

package com.nikee.dom4j;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
import java.io.*;
public class XmlDom4J{
public void generateDocument(){
//使用 DocumentHelper �c�d��Z��个文档实例。 DocumentHelper 是生成 XML 文档节点的 dom4j API 工厂�c� �?
Document document = DocumentHelper.createDocument();
//使用 addElement()�Ҏ��创徏根元素catalog , addElement()用于向 XML 文档中增加元素 �?
Element catalogElement = document.addElement( "catalog" );
//在 catalog 元素中��用 addComment() �Ҏ��d��注释"An XML catalog"
catalogElement.addComment( "An XML Catalog" );
//在 catalog 元素中��用 addProcessingInstruction() �Ҏ��增加一个处理指令 �?
catalogElement.addProcessingInstruction( "target" , "text" );
//在 catalog 元素中��用 addElement() �Ҏ��增加 journal 元素
Element journalElement = catalogElement.addElement( "journal" );
//使用 addAttribute() �Ҏ��向 journal 元素��d�� title 和 publisher 属性 �?
journalElement.addAttribute( "title" , "XML Zone" );
journalElement.addAttribute( "publisher" , "IBM developerWorks" );
Element articleElement=journalElement.addElement( "article" );
articleElement.addAttribute( "level" , "Intermediate" );
articleElement.addAttribute( "date" , "December-2001" );
Element titleElement=articleElement.addElement( "title" );
titleElement.setText( "Java configuration with XML Schema" );
Element authorElement=articleElement.addElement( "author" );
Element firstNameElement=authorElement.addElement( "firstname" );
firstNameElement.setText( "Marcello" );
Element lastNameElement=authorElement.addElement( "lastname" );
lastNameElement.setText( "Vitaletti" );
//可以使用 addDocType() �Ҏ��d��文档�c�d��说明
//�q�样��向 XML 文档中增加文档类型说明：
document.addDocType( "catalog" , "nikee" , "file://c:/Dtds/catalog.dtd" );
try {
//XMLWriter output = new XMLWriter(new FileWriter( new File("D:/eclipse3.2/workspace/WebServices/src/com/nikee/dom4j/catalog.xml")));
FileOutputStream fos= new FileOutputStream( "D:/eclipse3.2/workspace/WebServices/src/com/nikee/dom4j/catalog.xml" );
OutputFormat of= new OutputFormat( " " , true );
XMLWriter xw= new XMLWriter(fos, of);
xw.write( document );
xw.close();
}
catch (IOException e)
{
System.out.println(e.getMessage());
}
}
public static void main(String[] argv){
XmlDom4J dom4j= new XmlDom4J();
dom4j.generateDocument();
}
}

xml 代码

xml version = "1.0" encoding = "UTF-8" ?>
>
< catalog >
target text ?>
< journal title = "XML Zone" publisher = "IBM developerWorks" >
< article level = "Intermediate" date = "December-2001" >
< title > Java configuration with XML Schematitle >
< author >
< firstname > Marcellofirstname >
< lastname > Vitalettilastname >
author >
article >
journal >
catalog >

XmlDom4J.java 用于创徏 XML 文档 catalog.xml

java 代码

package com.nikee.dom4j;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.Attribute;
import java.util.List;
import java.util.Iterator;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
import java.io.*;
import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;
public class Dom4Jparser{
public Dom4Jparser(){
//construction
}
public void modifyDocument(File inputXml){
try{
//使用 SAXReader 解析 XML 文档 catalog.xml
SAXReader saxReader = new SAXReader();
Document document = saxReader.read(inputXml);
//使用 XPath 表达式从 article 元素中获得 level 节点列表。如果 level 属性值是"Intermediate"则改�?Introductory"
List list = document.selectNodes("http://article/@level");
Iterator iter=list.iterator();
while(iter.hasNext()){
Attribute attribute=(Attribute)iter.next();
if(attribute.getValue().equals("Intermediate"))
attribute.setValue("Introductory");
}
list = document.selectNodes("http://article/@date" );
iter=list.iterator();
while(iter.hasNext()){
Attribute attribute=(Attribute)iter.next();
if(attribute.getValue().equals("December-2001"))
attribute.setValue("October-2002");
}
//获取 article 元素列表�Q�从 article 元素中的 title 元素得到一个�P代器�Q��ƈ修改 title 元素的文本 �?
list = document.selectNodes("http://article" );
iter=list.iterator();
while(iter.hasNext()){
Element element=(Element)iter.next();
Iterator iterator=element.elementIterator("title");
while(iterator.hasNext()){
Element titleElement=(Element)iterator.next();
if(titleElement.getText().equals("Java configuration with XML Schema"))
titleElement.setText("Create flexible and extensible XML schema");
}
}
list = document.selectNodes("http://article/author" );
iter=list.iterator();
while(iter.hasNext()){
Element element=(Element)iter.next();
Iterator iterator=element.elementIterator("firstname");
while(iterator.hasNext()){
Element firstNameElement=(Element)iterator.next();
if(firstNameElement.getText().equals("Marcello"))
firstNameElement.setText("Ayesha");
}
}
list = document.selectNodes("http://article/author" );
iter=list.iterator();
while(iter.hasNext()){
Element element=(Element)iter.next();
Iterator iterator=element.elementIterator("lastname");
while(iterator.hasNext()){
Element lastNameElement=(Element)iterator.next();
if(lastNameElement.getText().equals("Vitaletti"))
lastNameElement.setText("Malik");
}
}
FileOutputStream fos=new FileOutputStream("D:/eclipse3.2/workspace/WebServices/src/com/nikee/dom4j/catalog-modified.xml");
OutputFormat of=new OutputFormat(" ",true);
XMLWriter xw=new XMLWriter(fos, of);
xw.write( document );
xw.close();
}
catch(DocumentException e)
{
e.printStackTrace();
}
catch(IOException e){
e.printStackTrace();
}
}
public static void main(String argv[]){
Dom4Jparser dom4jParser=new Dom4Jparser();
dom4jParser.modifyDocument(new File("D:/eclipse3.2/workspace/WebServices/src/com/nikee/dom4j/catalog.xml"));
}
}

xml 代码

xml version = "1.0" encoding = "UTF-8" ?>





< catalog >

target text ?>

< journal title = "XML Zone" publisher = "IBM developerWorks" >

    < article level = "Introductory" date = "October-2002" >

       < title > Create flexible and extensible XML schematitle >

       < author >

          < firstname > Ayeshafirstname >

          < lastname > Maliklastname >

      author >

   article >

journal >

catalog >

Dom4Jparser.java用于修改 XML 文档 catalog.xml为catalog-modified.xml

问题�ȝ��:

1.当catalog.xml�?lt;!--CTYPE catalog PUBLIC "nikee" "file://c:/Dtds/catalog.dt-->�q�一�?Dom4Jparser.java修改 XML 文档 catalog.xml为catalog-modified.xml�?发生异常org.dom4j.DocumentException: c Nested exception: c.

原因:我自己没有此 file://c:/Dtds/catalog.dtd .

解决办法:删掉此行.

2.除了加入dom4j.jar包外,必须加入jaxen.jar�?否则会发生异�?jaxen包可�?/strong> http://jaxen.org/ 下蝲.

�~�来如此 2007-11-02 18:00 发表评论

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js处理XML

dom4j解析XML