shan rast

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since Jan 25, 2009

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Recent posts by shan rast

java parsing using regular expression

shan rast wrote:

Campbell Ritchie wrote:

shan rast wrote:Thanks i got it but i have new problem i have posted a new post please give a solutionn for that

Please tell us how you solved the problem, so others can learn from your experience.

Pattern p1 = Pattern.compile("<h2[^>]*>"+".*?<a >]*>"+"([^<]+)"+"</a[^>]*>");
this is the pattern and now you just need to call the second group which will give the names of the author

i have parsed the data and now i need to store it in .xml or say it as to write in xml
so thats my second problem i coded for that but its not working please can you give me some link where i can get some tutorial i need it urgent

13 years ago

Java in General

java parsing using regular expression

Campbell Ritchie wrote:

shan rast wrote:Thanks i got it but i have new problem i have posted a new post please give a solutionn for that

Please tell us how you solved the problem, so others can learn from your experience.

Pattern p1 = Pattern.compile("<h2[^>]*>"+".*?]*>"+"([^<]+)"+"</a[^>]*>");
this is the pattern and now you just need to call the second group which will give the names of the author

13 years ago

Java in General

java parsing using regular expression

Rob Prime wrote:Also, please Use Code Tags.

Thanks i got it but i have new problem i have posted a new post please give a solutionn for that

13 years ago

Java in General

DbVisualizer

Hi There
well tell us what is the software DbVisualizer

13 years ago

JDBC and Relational Databases

parsing data and storing in the xml

////
<

import java.io.*;
import java.net.*;
import java.util.regex.*;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Attr;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class Spider{
Document document;
public static void main(String args[]){
try {
URL url = new URL(&amp;quot;http://www.csc.liv.ac.uk/teaching/modules/bscmodulesyr3.html&amp;quot;);
URLConnection urlConnection = url.openConnection();
DataInputStream dis = new DataInputStream(urlConnection.getInputStream());
String html= &amp;quot;&amp;quot;, tmp = &amp;quot;&amp;quot;;
// read all HTML source from given URL
while ((tmp = dis.readLine()) != null) {
html += &amp;quot; &amp;quot;+tmp;
}
dis.close();
// replace all white spaces region with single space
html = html.replaceAll(&amp;quot;\\s+&amp;quot;, &amp;quot; &amp;quot;);
// build the pattern using regular expression
Pattern p = Pattern.compile(&amp;quot;&amp;lt;td width=[^&amp;gt;]*&amp;gt;&amp;quot;+&amp;quot;.*?&amp;lt;A HREF=\&amp;quot;&amp;quot;+&amp;quot;([^\&amp;quot;]+)&amp;quot;+&amp;quot;\&amp;quot;[^&amp;gt;]*&amp;gt;&amp;quot;+&amp;quot;([^&amp;lt;]+)&amp;quot; + &amp;quot;&amp;amp;nbsp;.*?&amp;amp;nbsp;&amp;quot;+&amp;quot;([^&amp;lt;]+)&amp;quot;+&amp;quot;&amp;lt;/A[^&amp;gt;]*&amp;gt;&amp;quot;);
// Match the pattern with given html source
Matcher m = p.matcher(html);
// Get all matches that matched my pattern
while (m.find() == true){
// Print the first matched pattern
System.out.println(m.group(1));
System.out.println(m.group(2));
System.out.println(m.group(3));
// String s=m.group(1);
String s=&amp;quot;http://www.csc.liv.ac.uk&amp;quot;+m.group(1);
//System.out.println(s);
URL url1 = new URL(s);
URLConnection urlConnection1 = url1.openConnection();
DataInputStream dis1 = new DataInputStream(urlConnection1.getInputStream());
String html1= &amp;quot;&amp;quot;, tmp1 = &amp;quot;&amp;quot;;
// read all HTML source from given URL
while ((tmp1 = dis1.readLine()) != null) {
html1 += &amp;quot; &amp;quot;+tmp1;
}
dis1.close();
html1 = html1.replaceAll(&amp;quot;\\s+&amp;quot;, &amp;quot; &amp;quot;);
Pattern p1 = Pattern.compile(&amp;quot;&amp;lt;h2[^&amp;gt;]*&amp;gt;&amp;quot;+&amp;quot;.*?&amp;lt;a href=\&amp;quot;&amp;quot;+&amp;quot;([^\&amp;quot;]+)&amp;quot;+&amp;quot;\&amp;quot;[^&amp;gt;]*&amp;gt;&amp;quot;+&amp;quot;([^&amp;lt;]+)&amp;quot;+&amp;quot;&amp;lt;/a[^&amp;gt;]*&amp;gt;&amp;quot;);
Matcher m1 = p1.matcher(html1);
// Get all matches that matched my pattern
while (m1.find() == true){
// Print the first matched pattern
System.out.println(m1.group(2));
}
//Modules mod=new Modules(m1.group(2),m.group(1),m.group(3),m.group(2));
BuildXmlUsingDom b=new BuildXmlUsingDom(m.group(1), m.group(2), m.group(3), m1.group(2));///ERROR HERE I need to parse data from html page and /////store it in xml my data is parsed and only what i need is the each time the loop works the value should go in .xml but its giving error IllegalState Exception
////No match found
/////at java.util.regex.Matcher.group(Unknown Source)
///at Spider.main(Spider.java:91)
//b.createModules(document, m.group(1), m.group(2), m.group(3), m1.group(2));
}
}catch (Exception e) {
e.printStackTrace();
}
}
}
class Modules {
private String courseurl;
private String title;
private String code;
private String lecturer;
public String getCourseurl() {
return courseurl;
}
public void setCourseurl(String courseurl) {
this.courseurl = courseurl;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getLecturer() {
return lecturer;
}
public void setLecturer(String lecturer) {
this.lecturer = lecturer;
}
public Modules(String lecturer1, String courseurl1, String title1,String code1) {
lecturer = lecturer1;
courseurl = courseurl1;
title = title1;
code=code1;
}
public String toString() {
return lecturer + &amp;quot;\t&amp;quot; + courseurl + &amp;quot;\t&amp;quot; + title + &amp;quot;\t&amp;quot; + code;
}
}
class BuildXmlUsingDom {
private Document document;
String a,b,c,d;
public BuildXmlUsingDom(String l,String m,String n,String o) {
DocumentBuilderFactory dBF = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder builder = dBF.newDocumentBuilder(); // java xml documentbuilder
document = builder.newDocument();
} catch (ParserConfigurationException parserException) {
parserException.printStackTrace();
}
Element root = document.createElement(&amp;quot;Modules&amp;quot;);
document.appendChild(root);
// add comment to XML document
Comment simpleComment = document.createComment(&amp;quot;Modules details&amp;quot;);
root.appendChild(simpleComment);
// add Employee child elements
Node modulesNode = createModules(document,l,m,n,o);
root.appendChild(modulesNode);
// We can also add processing instructions and java xml cdata Sections as shown
// write the XML document to disk
try {
// create DOMSource for source XML document
Source xmlSource = new DOMSource(document);
// create StreamResult for transformation result
Result result = new StreamResult(new FileOutputStream(
&amp;quot;modules.xml&amp;quot;));
// create TransformerFactory
TransformerFactory transformerFactory = TransformerFactory
.newInstance();
// create Transformer for transformation
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(&amp;quot;indent&amp;quot;, &amp;quot;yes&amp;quot;); //Java XML Indent
// transform and deliver content to client
transformer.transform(xmlSource, result);
}
// handle exception creating TransformerFactory
catch (TransformerFactoryConfigurationError factoryError) {
System.err.println(&amp;quot;Error creating &amp;quot; + &amp;quot;TransformerFactory&amp;quot;);
factoryError.printStackTrace();
} catch (TransformerException transformerError) {
System.err.println(&amp;quot;Error transforming document&amp;quot;);
transformerError.printStackTrace();
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
public Node createModules(Document document,String u,String c,String t,String l) {
// create FirstName and LastName elements
Element module=document.createElement(&amp;quot;module&amp;quot;);
Element url = document.createElement(&amp;quot;url&amp;quot;);
//Element code = document.createElement(&amp;quot;code&amp;quot;);
Element title = document.createElement(&amp;quot;title&amp;quot;);
Element lecturer = document.createElement(&amp;quot;lecturer&amp;quot;);
// java xml text
title.appendChild(document.createTextNode(t));
url.appendChild(document.createTextNode(u));
lecturer.appendChild(document.createTextNode(l));
// create employee element
Element modules = document.createElement(&amp;quot;Modules&amp;quot;);
// java xml attributes
Attr moduleAttribute = document.createAttribute(&amp;quot;name&amp;quot;);
moduleAttribute.setValue(c);
// append attribute to contact element
modules.setAttributeNode(moduleAttribute);
modules.appendChild(module);
module.appendChild(title);
module.appendChild(lecturer);
module.appendChild(url);
return modules;
}
// Function to read DOM Tree from File
/*public Document readingXMLFromFile() {
DocumentBuilderFactory dBF = DocumentBuilderFactory.newInstance();
dBF.setIgnoringComments(true); // Ignore the comments present in the
// XML File when reading the xml
DocumentBuilder builder = null;
try {
builder = dBF.newDocumentBuilder();
} catch (ParserConfigurationException e) {
e.printStackTrace();
}
InputSource input = new InputSource(&amp;quot;Employee.xml&amp;quot;);
Document doc = null;
try {
doc = builder.parse(input);
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return doc;
}
/*
* Employee.xml
*
* &amp;lt;?xml version=&amp;quot;1.0&amp;quot; encoding=&amp;quot;UTF-8&amp;quot;?&amp;gt; &amp;lt;Employees&amp;gt; &amp;lt;!--Employee
* Details--&amp;gt; &amp;lt;Employee gender=&amp;quot;M&amp;quot;&amp;gt; &amp;lt;FirstName&amp;gt;Shawn&amp;lt;/FirstName&amp;gt;
* &amp;lt;LastName&amp;gt;Michaels&amp;lt;/LastName&amp;gt; &amp;lt;/Employee&amp;gt; &amp;lt;/Employees&amp;gt;
*
*/
/*public ArrayList CreateListOfObjects(Document doc) {
ArrayList&amp;lt;Employees&amp;gt; employeesList = new ArrayList&amp;lt;Employees&amp;gt;();
Element root = doc.getDocumentElement();
// Retrieve the list of Empolyee Nodes
NodeList employeeList = root.getElementsByTagName(&amp;quot;Employee&amp;quot;);
for (int i = 0; i &amp;lt; employeeList.getLength(); i++) {
Element employeeElement = (Element) employeeList.item(i);
String gender = employeeElement.getAttribute(&amp;quot;gender&amp;quot;);
// java xml nodelist
NodeList firstNameList = employeeElement
.getElementsByTagName(&amp;quot;FirstName&amp;quot;);
Element firstNameElement = (Element) firstNameList.item(0);
Text firstNameText = (Text) firstNameElement.getFirstChild();
String fName = firstNameText.getNodeValue();
NodeList lastNameList = employeeElement
.getElementsByTagName(&amp;quot;LastName&amp;quot;);
Element lastNameElement = (Element) lastNameList.item(0);
Text lastNameText = (Text) lastNameElement.getFirstChild();
String lName = lastNameText.getNodeValue();
Modules mod1 = new Modules(lecturer1,course1,title);
employeesList.add(emp);
}
return employeesList;
}*/
}

>///////

13 years ago

Sockets and Internet Protocols

java parsing using regular expression

http://www.csc.liv.ac.uk/teaching/modules/year3s1/comp304.html

i need to parse this page and extract the member of staff on this page using regular expression.
Using java.utility.regex

i only need the regular expression rest code i have done

//////
import java.io.*;
import java.net.*;
import java.util.regex.*;

class Spider{
public static void main(String []argv){
try {

URL url = new URL("http://www.csc.liv.ac.uk/teaching/modules/year3s1/comp304.html");
URLConnection urlConnection = url.openConnection();
DataInputStream dis = new DataInputStream(urlConnection.getInputStream());
String html= "", tmp = "";
// read all HTML source from given URL
while ((tmp = dis.readLine()) != null) {
html += " "+tmp;
}
dis.close();

// replace all white spaces region with single space
html = html.replaceAll("\\s+", " ");
// build the pattern using regular expression

//here is the pattern where i have to define a regular expression to find the name of the author from the page
*
*
//please REPLY ME THE REGULAR EXPRESSION NEEDED PLEASE IN THE Pattern.compile
//for the link http://www.csc.liv.ac.uk/teaching/modules/year3s1/comp304.html

Pattern p = Pattern.compile("");
// Match the pattern with given html source
Matcher m = p.matcher(html);
// Get all matches that matched my pattern
while (m.find() == true){
// Print the first matched pattern
System.out.println(m.group(1));
}
}catch (Exception e) {
System.out.println(e);
}
}
}

/////

13 years ago

Java in General

please help struts hibernate ---tiles framework is not working please help

new bie here
hi i am making a project on online bookstore using struts and hibernate using myeclipse i used tiles definition but its not imported in my jsp
in struts config
please help me this is not working

=============================================================
<struts-config>
<data-sources />
<form-beans>
<form-bean name="bookForm"
type="org.apache.struts.action.DynaActionForm">
<form-property name="search" type="java.lang.String" />
<form-property name="searchtype" type="java.lang.String" />
<form-property name="searchresult" type="java.util.List"></form-property>
</form-bean>
<form-bean name="adminForm"
type="org.apache.struts.action.DynaActionForm">
<form-property name="uname" type="java.lang.String" />
<form-property name="pass" type="java.lang.String" />

</form-bean>
<form-bean name="adminDeleteForm"
type="org.apache.struts.action.DynaActionForm">
<form-property name="isbnno" type="java.lang.String" />

</form-bean>
</form-beans>
<global-exceptions />
<global-forwards>

</global-forwards>
<action-mappings>
<action path="/adminlogin" forward="/adminlogin.jsp"></action>
<action path="/adminoperation" name="adminForm"
type="com.yourcompany.struts.action.adminaction.AdminAction"
input="/adminlogin.jsp" scope="request">
<forward name="adminCRUD" path="/adminCRUD.jsp" />
<forward name="adminlogin" path="/adminlogin.jsp" />
</action>

<action path="/adminInsertUpdate" forward="/adminInsertUpdate.jsp"></action>
<action path="/adminDelete" forward="/adminDelete.jsp"></action>

<action attribute="bookForm" name="bookForm" path="/book"
input="/start.jsp" scope="session"
type="com.yourcompany.struts.action.BookAction">
<forward name="booksearch" path="/booksearch.jsp" />
<forward name="start" path="/start.jsp" />
</action>
<action
attribute="adminDeleteForm"
input="/adminDelete.jsp"
name="adminDeleteForm"
path="/delete"
type="com.yourcompany.struts.action.DeleteAction">
<forward name="adminCRUD" path="/adminCRUD.jsp" />
</action>



</action-mappings>

<message-resources
parameter="com.yourcompany.struts.ApplicationResources" />

<plug-in className="org.apache.struts.tiles.TilesPlugin">
<set-property property="definitions-config" value="/WEB-INF/tiles-defs.xml" />
<set-property property="moduleAware" value="true" />
<set-property property="definitions-parser-validate" value="true" />
</plug-in>
=====================================================
tiles-defs.xml
well i just put the necessary code
<definition name="main.layout" path="/mainlayout.jsp">

<put name="header" value="/header.jsp" />

<put name="footer" value="/footer.jsp" />

</definition>
<definition name="start.page" extends="main.layout">
<put name="title" value="default page" />
<put name="body" value="/start.jsp" />
</definition>
<definition name="booksearch.page" extends="main.layout">
<put name="title" value="book result page" />
<put name="body" value="/booksearch.jsp" />
</definition>
================================================
start.jsp

<%@ page language="java" pageEncoding="ISO-8859-1"%>
<%@ page import="java.util.*"%>

<%@ page import="com.yourcompany.ghj.*"%>
<%@ page import="java.util.List"%>
<jsp:directive.page import="com.yourcompany.bookModel.BookSearch" />

<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean"
prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html"
prefix="html"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic"
prefix="logic"%>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-tiles"
prefix="tiles"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-template"
prefix="template"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-nested"
prefix="nested"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html locale="true">
<head>
<html:base />

<title>start.jsp</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">


</head>

<body>
<table>
<tr>

<html:form action="book.do" >
<html:select property="searchtype">
<html:option value="select">select</html:option>
<html:option value="titlebook">title</html:option>
<html:option value="authorbook">author</html:option>
<html:option value="publisherbook">publisher</html:option>
</html:select>
<html:text property="search"></html:text>
<html:submit>search</html:submit>
</html:form>
<td>
<html:link action="/adminlogin">admin</html:link>
</td>
</tr>
</table>

</body>

</html:html>
======================================================
in xml i put this as the index file
<welcome-file-list>
<welcome-file>start.jsp</welcome-file>
</welcome-file-list>

there are header and footer which i used but i think there is problem of path or name please help me

13 years ago

Struts