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xquery 学习 (��单demo)

G_G — Thu, 29 May 2008 06:49:00 GMT

xml 数据库��用，和XQuery使用.
环境:
    1.xml数据库��?img title="eXist" src="http://demo.exist-db.org/logo.jpg" height="35" width="90" />�Q�参考：eXistQuick Start�Q?br />    2.xQuery XQuery 首页

1.��试开始：
    �q�入�Q�eXist-> http://demo.exist-db.org/xmldb/db/

for $x in doc("/examples2.xml")/exist:result/country return if ($x/population_growth<-1) then {data($x/name)} else {data($x/name)}
parent collection: /db
<child > Bosnia and Herzegovina
<adult > Czech Republic
<child > Estonia
<child > Faroe Islands
<adult > Hungary
<adult > Ireland
<child > Latvia
<adult > Lithuania
<child > Romania
<adult > Russia

使用数据�Q?br />    http://demo.exist-db.org/xmldb/db/examples2.xml

2�Q�自定义�Ҏ��Q?br />    使用�Q�http://demo.exist-db.org/sandbox/sandbox.xql

declare function local:minPrice(){
for $x in (1 to 5)
return <test>{$x}test>
};

<minPrice>{local:minPrice()}minPrice>

�l�果�Q?br /><minPrice>

minPrice>

G_G 2008-05-29 14:49 发表评论

G_G — Wed, 28 Nov 2007 10:13:00 GMT

test.xls 中内�?->

xml version="1.0"?>
<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:x="urn:schemas-microsoft-com:office:excel"
xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
xmlns:html="http://www.w3.org/TR/REC-html40">

<Worksheet ss:Name="xls1">

<Table>
  <Row>
   <Cell><Data ss:Type="String">cell a1Data>Cell>
   <Cell><Data ss:Type="String">cell b2Data>Cell>
  Row>
  <Row>
   <Cell><Data ss:Type="String">cell a2Data>Cell>
   <Cell><Data ss:Type="String">cell b3Data>Cell>
  Row>
Table>
Worksheet>

Workbook>

展现的样�?>

cell a1	cell b2
cell a2	cell b3

G_G 2007-11-28 18:13 发表评论

dom4j 学习

G_G — Tue, 06 Nov 2007 07:24:00 GMT

直接看代�?.
dom4j 的一般��用都在里面了
/lib/dom4j-1.6.1.jar
/lib/jaxen-1.1-beta-6.jar

package useDom4j.test.supper;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import junit.framework.TestCase;

import org.dom4j.Document;
import org.dom4j.DocumentFactory;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.QName;
import org.dom4j.Visitor;
import org.dom4j.VisitorSupport;
import org.dom4j.XPath;
import org.dom4j.io.DOMReader;
import org.dom4j.io.HTMLWriter;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

public class useDom4jTest extends TestCase {

    //use all
    private String path ;
    private ClassLoader clo;
    // file path -> bin
    private String classPath ;
    //use save
    static private Document doc;
    private String filese;

    protected void setUp() throws Exception {
        super.setUp();
        path = "useDom4j/test/config/test.xml";
        clo = this.getClass().getClassLoader();
        classPath = System.getProperty("java.class.path").split(";")[0]   ;
        filese = System.getProperty("file.separator");
    }

    protected void tearDown() throws Exception {
        super.tearDown();
    }


    public void testRead()throws Exception{
        SAXReader sax = new SAXReader();
        //File read
        Document docF =  sax.read(
                new File(clo.getResource(path).getFile())
                    );
        assertNotNull("is File saxReader err",docF);

        //InPutStream read
        Document docI = sax.read( clo.getResourceAsStream(path) );
        assertNotNull("is InPutStream saxReader err",docI);

        //URL read
        Document docU = sax.read( clo.getResource(path) );
        assertNotNull("is Url saxReader err",docU);

    }

    /** converts a W3C DOM document into a dom4j document */
    public void testConversion() throws Exception{
          DocumentBuilderFactory domfac=DocumentBuilderFactory.newInstance();
          DocumentBuilder dombuilder=domfac.newDocumentBuilder();
          InputStream input =  clo.getResourceAsStream(path) ;
          org.w3c.dom.Document doc3c = dombuilder.parse( input );
          DOMReader xmlReader = new DOMReader();
          assertEquals( " Conversion : W3C DOM-> dom4j DOM err",
                  xmlReader.read(doc3c) instanceof Document,true );
      }

    public void testCreate()throws Exception{
          DocumentFactory factory = DocumentFactory.getInstance();
          doc = factory.createDocument();
        //root Create
          Element root = doc.addElement("testElement");
          assertNotNull("is root Create err",root);

           Element author2 = root.addElement( "author" )
              .addAttribute( "name", "Toby" )
              .addAttribute( "location", "Germany" )
              .addText( "Tobias Rademacher" );

            Element author1 = root.addElement( "author" )
              .addAttribute( "name", "James" )
              .addAttribute( "location", "UK" )
              .addText( "James Strachan" );

            //Test Create
            //use XPath ->jaxen-xxx.jar
            assertEquals("create Element author2 err",
                    doc.selectSingleNode("/testElement/author[@name='Toby']").getText()
                    ,"Tobias Rademacher");
            assertEquals("create Element author1 err",
                    doc.selectSingleNode("/testElement/author[@location='UK']/@name").getText()
                    ,"James");
    }

     public void testPrintingHTML()throws Exception{
           String testSaveXml = "useDom4j/test/config/testHtml.html";

           testSaveXml = classPath+filese+testSaveXml;

           File file = getFile(testSaveXml);
           //Save file.html
           HTMLWriter writer = new HTMLWriter(new FileOutputStream( file ));
           writer.write(new SAXReader().read( clo.getResource(path) ));
           writer.flush();
     }

    public void testIterator(){
        Element root = this.doc.getRootElement();

        //Iterator
        Iterator elementIterator = root.elementIterator();
        while(elementIterator.hasNext()){
          Element element = (Element)elementIterator.next();
          assertNotNull("not attr name", element.selectSingleNode("./@name") );
          assertNotNull("not attr location", element.selectSingleNode("./@location") );
          assertNotNull("not Text ", element.selectSingleNode(".").getText() );
        }

        //for -> ./XX
        for ( int i = 0, size = root.nodeCount(); i < size; i++ ) {
            Node node = root.node(i);
            if ( node instanceof Element ) {
              Element element = (Element)node;
              assertNotNull("not attr name", element.selectSingleNode("./@name") );
                assertNotNull("not attr location", element.selectSingleNode("./@location") );
                assertNotNull("not Text ", element.selectSingleNode(".").getText() );
            }
        }

        //List
        List elements = root.elements();
        int size = elements.size() ;
        if ( size > 4 ) {
          elements.subList( 3, 4 ).clear();
          assertEquals("List is not clear",size-elements.size()==1,true);
        }

    }

    /** use test.xml test
         xpath -> /project/organization/

             MetaStuff Ltd.
             http://sourceforge.net/projects/dom4j
             http://sourceforge.net/sflogo.php?group_id=16035


          xpath -> /project/dependencies/dependency[groupId='msv']

              msv
              xsdlib
              20030807
              https://msv.dev.java.net/

    */
    public void testXpath()throws Exception{
        XPath xpathSelector = DocumentHelper.createXPath("/project/organization/*");
        Document docT = new SAXReader().read( clo.getResourceAsStream(path) );
        List results = xpathSelector.selectNodes(docT);
        for ( Iterator iter = results.iterator(); iter.hasNext(); ) {
          Element element = (Element) iter.next();
          if(element.getName().equals("name")){
              assertEquals("name err", element.getText().equals("MetaStuff Ltd."),true);
          }
          if(element.getName().equals("url")){
              assertEquals("url err", element.getText().equals("http://sourceforge.net/projects/dom4j"),true);
          }
          if(element.getName().equals("logo")){
              assertEquals("logo err", element.getText().equals("http://sourceforge.net/sflogo.php?group_id=16035"),true);
          }
        }

        // select
        String url = docT.valueOf( "/project/dependencies/dependency[groupId='msv']/url" );
        assertEquals("Url err", url.equals("https://msv.dev.java.net/"),true);
        Number count = docT.numberValueOf( "/project/dependencies/dependency[groupId='msv']/version" );
        assertEquals("Url err", count.intValue()==20030807,true);

    }


    public void testVisitor(){
        Visitor visitor = new VisitorSupport() {
            public void visit(Element element) {
              System.out.println(
                "Entity name: " + element.getName()  + " text :" + element.getText()
              );
            }
          };

          doc.accept( visitor );
    }

    //  element.clone ;  element.createCopy ;
    public void testInsertElementAt() throws Exception{
        Element root = this.doc.getRootElement();
        Element oldElement = (Element)doc.selectSingleNode("/testElement/author[@name='Toby']");
        Element newElement = (Element) oldElement.clone();
        List list = root.content();
        list.add( root.indexOf(oldElement)+1,newElement );

     }




     public void testSave()throws Exception{
           String testSaveXml = "useDom4j/test/config/testSave.xml";

           testSaveXml = classPath+filese+testSaveXml;

           File file = getFile(testSaveXml);
           //Save file.xml
           XMLWriter writer = new XMLWriter(new FileOutputStream( file ));
           writer.write(doc);
           writer.flush();
     }



    private File getFile(String testSaveXml) throws IOException {
        File file = null ;
           URL url = clo.getResource(testSaveXml);
           if(url==null){
               file = new File(testSaveXml);
               file.createNewFile();
           }else{
               file = new File(  url.getFile() );
           }
        return file;
    }


}

引用�Q�http://freezingxu.blog.com.cn/archives/2006/1892647.shtml

/**
  * �Ҏ��定的节点增加属性和文本
  * @param elmt
  * @param name
  * @param value
  * @param text
  * @return
  */
public Element addAttribute(Element elmt,String name,String value){
  elmt.addAttribute(name,value);
  return elmt;
}

/**
  * 修改指定节点的属性和文本
  * @param elmt
  * @param name
  * @param value
  * @param text
  * @return
  */
public Element setAttribute(Element elmt,String name,String value){
  Attribute attribute = elmt.attribute(name);
  //attribute.setName(name);
  attribute.setValue(value);
  List list = new ArrayList();
  list.add(attribute);
  elmt.setAttributes(list);
  return elmt;
}

/**
  * 删除指定节点的指定属�?br />  * @param elmt
  * @param name
  * @return
  */
public Element removeAttribute(Element elmt,String name){
  elmt.remove(elmt.attribute(name));
  return elmt;
}

/**
  * 输出为文�?br />  * @param doc
  * @throws IOException
  */
public void writeFile(Document doc) throws IOException{
  FileWriter out = new FileWriter( "d:/newQuery.xml" );
  doc.write(out);
  out.flush();
  out.close();
}

G_G 2007-11-06 15:24 发表评论

javascript xpath 自定义方�?�U�连下拉�?

G_G — Tue, 14 Aug 2007 06:29:00 GMT

问题: IE,FF�?xpath 在javascript动态解�?
解决: 自定义jsXpath �c?br />
js.js
//关键�?jsXpath �c?br />//使用�?new �q?�l�属�?domx �?DOMXml
//var nodes = obj.getPathNodes( xpath ); ��是 xpath语句�?//beans/bean
//�?var node = obj.next( nodes )
//node 可以使用�?/b>

xml.xml
xml version="1.0" encoding="GB2312" standalone="no"?>
<beans>
    <bean xid='01' >北京局bean>
    <bean xid='0101'>ftd
    ='0102'>tsd

    ='02'>沈阳局
    ='0202'>sy1
    ='0203'>sy2
    ='0204'>sy3
>

xpath.html //�U�连�?下拉框出来了
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
        <script language='JavaScript' src="js/js.js">script>
        <script language="JavaScript" src="lib/prototype/prototype.js">script>
        <script language='JavaScript' src='js/xpath.js'>script>
    head>

    <body onload='load( "./xml/xml.xml" )'>
        <select id="ii" onchange='duSel();'>
             <option value="" >--�D�选择--option>
        select>
        <select id="jj">
             <option value="" >--车间选择--option>
        select>
    body>
html>

心得: xpath 是好东西好东西啊

G_G 2007-08-14 14:29 发表评论

javascript Xpath ��例

G_G — Mon, 13 Aug 2007 05:58:00 GMT
问题�Q?/b> java 可以�?xpath ; javascriopt 也可以！
解决�Q?/b> document.evaluate �Ҏ��
参考：��览器中的XPath支持
xpath.html
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
        <script language='JavaScript' src="js/js.js">script>
        <script language="JavaScript" src="lib/prototype/prototype.js">script>
    head>
    <body onload='load( "./xml/xml.xml" )'>
    body>
html>
// xpath.js 是一个扩展包在这里是可以�l�一 �Ҏ��IE �Q�FF都可以��?evaluate�Ҏ��
// http://www.tkk7.com/Files/Good-Game/xpath.rar 下蝲
// 说明 http://dev.infoaccelerator.net/spryDocs/overview-summary.html

G_G 2007-08-13 13:58 发表评论

java Xpath ��例

G_G — Fri, 03 Aug 2007 07:46:00 GMT
参考：http://www.cnblogs.com/zixin/category/60411.html

import java.util.*; import org.jdom.*;
import org.jdom.xpath.*;
import org.jdom.input.*;
import org.jdom.output.*;
import java.io.*;
import org.jdom.xpath.*;
import org.saxpath.*;
public class TestXML {
  public static void main(String[] args) {
    try {
        SAXBuilder sb = new SAXBuilder();
        Document doc = sb.build(new FileInputStream("/book.xml"));
        String strPath = "//book/author";
        XPath path = XPath.newInstance(strPath);
        List lst = path.selectNodes(doc);
        for (Iterator it = lst.iterator(); it.hasNext();) {
            Element at = (Element) it.next();
            System.out.println(at.getText());
        }

       } catch (Exception e) {
       e.printStackTrace();
   }
  }
}

G_G 2007-08-03 15:46 发表评论

国产成+人+综合+亚洲专,亚洲变态另类一区二区三区,亚洲男人天堂2020

xquery 学习 (���单demo)

dom4j 学习

javascript xpath 自定义方�?�U�连下拉�?

javascript Xpath ���例

java Xpath ���例

xquery 学习 (��单demo)

javascript Xpath ��例

java Xpath ��例