Parse XML and Output to JSP page
I have a number of XML documents which are all formatted in the same way, just with different information in the fields.
I wish to parse the XML documents using DOM and output them to an XML page.
How would i go about doing this?
If you could write a small example or any websites that you think might help.
Thanks.
I have the parsing working but i cant seem to figure out how to get information out of the parsed document and into variables.
This is a sample of my XML file
<?xml version="1.0"?>
<product code="QB-1226-AB">
<productName>Professional Floodlights</productName>
<description>PIR floodlights that are designed for professional installation. A faulty light requiring a return visit will cost far more than a quality light does in the first place. 3 year guarantee.</description>
<price>120</price>
<manufacturer>Black and Decker</manufacturer>
</product>I can get the productCode value out without any problems using
String name = attrs.getValue("code");
But if i try the same for any of the others i get null. I can accomplish this using DOM easily but i cant find anything at all about getting values out of it using SAX.
Any help would be greatly appreciated.
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shixuanHI Tan ,
I pressume that you wanted to make use of PDK, the code can go like this .
<b><u>1) JAVA file</u></b>
import com.sapportals.htmlb.DropdownListBox;
import com.sapportals.htmlb.InputField;
import com.sapportals.htmlb.event.Event;
import com.sapportals.htmlb.page.DynPage;
import com.sapportals.htmlb.page.PageException;
import com.sapportals.portal.htmlb.page.JSPDynPage;
import com.sapportals.portal.htmlb.page.PageProcessorComponent;
import com.sapportals.portal.prt.component.IPortalComponentRequest;
import com.sapportals.portal.prt.component.IPortalComponentSession;
import com.sapportals.portal.prt.component.IPortalComponentContext;
import java.sql.*;
public class P_SAP_B_User extends PageProcessorComponent
* Method : getPage()
* Description :
* Input Parameters : None
* Returns : Object of Class DynPage
public DynPage getPage()
return new P_SAP_B_UserDynPage();
} // end of dynPage()
public static class P_SAP_B_UserDynPage extends JSPDynPage
/* Variable Declaration */
/* Object of bean class P_SAP_B_CreateUser initialised to null */
private P_SAP_B_CreateUser createUserBean = null;
/* Flags for checking the occurance of Event & Error. */
private int iFlag=0;
private int iErrFlag=0;
/* Variables for storing the information
entered by user in each text field */
private String sFname;
private String sSname;
private String sAge;
private String sExp;
private String sSkill;
private String sUnit;
* Method : doInitialization()
* Description :
* Input Parameters : None
* Returns : None
public void doInitialization()
IPortalComponentSession componentSession = ((IPortalComponentRequest)getRequest()).getComponentSession();
Object o = componentSession.getValue("createUserBean");
if(o==null || !(o instanceof P_SAP_B_CreateUser))
createUserBean = new P_SAP_B_CreateUser();
componentSession.putValue("createUserBean",createUserBean);
} // end of if
else
createUserBean = (P_SAP_B_CreateUser) o;
} // end of else
}//end of doInitialisation()
* Method : onUpdate()
* Description :
* Input Parameters : object of Event class
* Returns : None
public void onUpdate(Event e)throws PageException
/* sets flag to 1 when update button is clicked. */
iFlag=1;
* Method : doProcessAfterInput()
* Description :
* Input Parameters : None
* Returns : None
public void doProcessAfterInput() throws PageException
InputField ifFirstName = (InputField) getComponentByName("FirstName");
InputField ifSecondName = (InputField) getComponentByName("SecondName");
InputField ifAge = (InputField) getComponentByName("Age");
InputField ifExp = (InputField) getComponentByName("Exp");
InputField ifSkill = (InputField) getComponentByName("Skill");
DropdownListBox dlbUnit = (DropdownListBox) getComponentByName("Unit");
int iAge,iExp;
IPortalComponentRequest request = (IPortalComponentRequest) this.getRequest();
IPortalComponentContext myContext = request.getComponentContext();
P_SAP_B_CreateUser myNameContainer = (P_SAP_B_CreateUser) myContext.getValue("createUserBean");
if(ifFirstName != null)
this.sFname = ifFirstName.getValueAsDataType().toString() ;
} // end of if
if(ifSecondName!= null)
this.sSname = ifSecondName.getValueAsDataType().toString() ;
} // end of if
if(ifAge!= null)
this.sAge = ifAge.getValueAsDataType().toString() ;
} // end of if
if(ifExp!= null)
this.sExp = ifExp.getValueAsDataType().toString() ;
} // end of if
if(ifSkill != null)
this.sSkill = ifSkill.getValueAsDataType().toString() ;
} // end of if
if(dlbUnit != null)
this.sUnit = dlbUnit.getSelection().toString() ; ;
} // end of if
/* Data Validation */
/* try block for numeric Exception */
try
/* checking for any field left blank by the user */
if(sFname.equals("") || sSname.equals("") || sAge.equals("")|| sExp.equals("") || sSkill.equals(""))
/* set error flag to 1 in case of any field left blank */
iErrFlag=1;
} // end of if
else
/* converting Age and Experience fields (String) to integer */
iAge= Integer.parseInt(sAge);
iExp= Integer.parseInt(sExp);
/* setting the boundaries on the value in Age Field */
if(iAge<0)
/* set error flag to 2 in case of age below 0 */
iErrFlag=2;
}// end of if
/* setting the boundaries on the value in Experience field */
else if(iExp<0 ||(iExp/12)>=iAge)
/* set error flag to 3 in case of experience below 0 or exceeding the age in years */
iErrFlag=3;
}// end of else if
/* In case of no error */
else
/* setting the bean variables */
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:Test");
String query="insert into UserData values(?,?,?,?,?,?)";
PreparedStatement prestat=con.prepareStatement(query);
/* setting the values to be inserted into the user table */
prestat.setString(1,sFname);
prestat.setString(2,sSname);
prestat.setString(3,sAge);
prestat.setString(4,sExp);
prestat.setString(5,sSkill );
prestat.setString(6,sUnit);
prestat.executeUpdate() ;
prestat.close();
con.close();
myNameContainer.setSFname(sFname);
myNameContainer.setSLname(sSname);
myNameContainer.setSAge(sAge);
myNameContainer.setSExp(sExp);
myNameContainer.setSSkill(sSkill);
myNameContainer.setSUnit(sUnit);
} // end of inner try block
catch(Exception sqle)
myNameContainer.setErrMessage("Update failed ! Please try again." );
} // end of catch corresponding to inner try
} // end of inner else
} //end of outer else
} //end of outer try block
catch(Exception e)
/* setting flag to 4 in case of non-numeric age/experience values */
iErrFlag = 4;
/* Displaying error message corresponding to the value of error flag */
switch(iErrFlag)
/* Empty Field */
case 1:myNameContainer.setErrMessage( "Please Fill all the fields");
break;
/* Invalid Value in the age field */
case 2:myNameContainer.setErrMessage( "Enter a valid value in Age field.(Hint : Have you entered Age<0 ?");
break;
/* Invalid Value in the experience field */
case 3:myNameContainer.setErrMessage( "Enter a valid value in Experience field.(Hint : Experince should not be negative or greater than your age in months)");
break;
/* Non-numeric value in the Age/ experience fields */
case 4:myNameContainer.setErrMessage( "Please Enter Numeric Value for Age and Experience");
break;
} // end of switch-case block
} //end of doProcessAfterInput()
* Method : doProcessBeforeOutput()
* Description :
* Input Parameters : None
* Returns : None
public void doProcessBeforeOutput() throws PageException
/* Displays Form for new user creation by default */
this.setJspName("P_SAP_B_UserCreationForm.jsp");
/* In case of an error display an error message page */
if(iErrFlag!=0)
setJspName("ErrorPage.jsp");
} //end of if
/* Displays the user's information as entered in the SQL
database after its been uploaded by the user */
else if(iFlag==1)
setJspName("hello.jsp");
} // end of else if
} // end of doProcessBeforeOutput()
} // end of P_SAP_B_UserDynPage Class
} // end of P_SAP_B_User class
* End of File P_SAP_B_User.java
2) Bean
package com.sap.usercreation;
import java.io.Serializable;
public class P_SAP_B_CreateUser implements Serializable
private String sFname;
private String sLname;
private String sUnit;
private String sSkill;
private String sExp;
private String sAge;
private String errMessage;
* @return
public String getSFname() {
return sFname;
* @return
public String getSLname() {
return sLname;
* @param i
* @param string
public void setSFname(String string) {
sFname = string;
* @param string
public void setSLname(String string) {
sLname = string;
* @return
public String getSUnit() {
return sUnit;
* @param string
public void setSUnit(String string) {
sUnit = string;
* @return
public String getSSkill() {
return sSkill;
public void setSSkill(String string) {
sSkill = string;
* @return
public String getSAge() {
return sAge;
* @return
public String getSExp() {
return sExp;
* @param string
public void setSAge(String string) {
sAge = string;
* @param string
public void setSExp(String string) {
sExp = string;
* @return
public String getErrMessage() {
return errMessage;
* @param string
public void setErrMessage(String string) {
errMessage = string;
3) The Jsp file i have already posted.
See if you copy this code and paste it wont work as i have not given you full code ,But yes this gives you an overview of how things can be done .
Thanx
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String file="FoodTest.java";
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import java.net.*;
import java.util.*;
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System.out.println("the contents name "+ms.vname1);
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<coyprofile_result>
<company>
<name>abcTech</name>
<rcbreg>123456789</rcbreg>
<address>Singapore</address>
<country>sg</country>
<telephone>123456</telephone>
<fax>123155</fax>
</company>
</coyprofile_result>I believe that the problem has to do with the value you assign to ctelement. You are assigning the value of localName to ctElement, however for the element: <name>...</name> the localname is empty string i.e. "", but qName equals "name". Because you are assigning empty string to ctElement, when you do the comparison in characters of ctElement to "name" it will always be false. So in startElement change it to ctElement = qName; Try it and see if it works. I have produced similar programs and it works for me.
Hope this helps. -
Session Login and Logout in jsp page
hi
i am developing jsp page
i completed except logout.jsp page
my login page is in Jsp format and then business Logic in servlet and then get method & set method in bean.java
i have login and then it sucess page there i have singout button
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Regards
AkshathaThis is part of your filter class now you need login.jsp page
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="Stylesheet" type="text/css" href="/PAS/css/site.css"/>
<title>Automation System | Login Page</title>
</head>
<body>
<div align="center">
<h1>Photint Automation System</h1>
</div>
<br/><br/><br/>
<center>
<table border="1" cellpadding="0" cellspacing="0" width="40%" bgcolor="FFFFFFFF">
<thead>
<tr>
<th align="left" height="30"> <h3> Login</h3></th>
</tr>
</thead>
<tbody>
<tr>
<td>
<div align="center">
<form name="LOGIN" action="/PAS/LoginServlet" method="POST">
<table border="0">
<tbody>
<tr>
<td height="15"></td>
<td height="15"></td>
<td height="15"></td>
<td height="15"></td>
</tr>
<tr>
<td height="30"></td>
<td align="right" height="30">User Name : </td>
<td align="left" height="30"><input type="text" name="USERNAME" value="" size="35" /></td>
<td height="30"></td>
</tr>
<tr>
<td height="30"></td>
<td align="right" height="30">Password : </td>
<td align="left" height="30"><input type="password" name="PASSWORD" value="" size="35" /></td>
<td height="30"></td>
</tr>
<tr>
<td height="50"></td>
<td height="50"></td>
<td align="center" height="50"><input type="submit" value="Login" name="Login" /> <input type="reset" value="Reset" name="Reset" /></td>
<td height="50"></td>
</tr>
</tbody>
</table>
</form>
</div>
</td>
</tr>
</tbody>
</table>
</center>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/>
<center>Copyright © 2009 Photint FZ LLC</center>
<center>Powered by Ali Jamali</center>
<center>Version : 1.0</center>
</body>
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package com.ali.util.filter;
import com.ali.entity.user.UserEntity;
import com.ali.util.HibernateUtil;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String username = request.getParameter("USERNAME");
String password = request.getParameter("PASSWORD");
if (username == null || username.length() == 0) {
System.err.println(" Username textfeild is empty ..... !");
RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
dispatcher.forward(request, response);
return;
if (UserRegistry.isUserLoggedIn(username)) {
System.out.printf("User [%s] is already logged in. \n", username);
RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
dispatcher.forward(request, response);
return;
UserEntity user = null;
try {
user = (UserEntity) HibernateUtil.load(UserEntity.class, username);
if (user == null || !user.getPassword().equals(password)) {
RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
dispatcher.forward(request, response);
System.err.println(" Password or username is not valid ..... !");
return;
} catch (Exception e) {
e.printStackTrace();
RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
dispatcher.forward(request, response);
return;
HttpSession session = request.getSession();
System.err.println(request.getRemoteAddr());
session.setAttribute("username", user.getFirstName());
session.setAttribute("userType", user.isAdmin());
UserRegistry.logInUser(username);
response.sendRedirect("/PAS/index.jsp");
}finally is you need to just one user can be online at time or need to know how many user & who is online you should at this class also
package com.ali.util.filter;
import java.util.ArrayList;
import java.util.List;
public class UserRegistry {
private static final List loggedInUsers = new ArrayList();
public static void logInUser(String username) {
loggedInUsers.add(username);
public static void logoutUser(String username) {
if (isUserLoggedIn(username)) {
loggedInUsers.remove(username);
public static boolean isUserLoggedIn(String username) {
return loggedInUsers.contains(username);
}If you have any more Q. or any comment , Most welcome
Thanks
Ali Jamali -
Read a property file value and display in jsp page
I need a solution for the below mentioned scenario,
I want to read a value from the property file in JSP page.
For Example, Let us have a property file called A.properties, in the file, we have a value, username = Sam.
I want to bring this value in the jsp page.
Please assist in this issue.
thanks in advance.If you are using struts, then you have to first load the taglib like
<%@ taglib uri="/WEB-INF/strutsresources/struts-bean.tld" prefix="bean" %>and then access the particular property like
<bean:message key="welcome"/>Also, you have to define <message-resources> in struts-config. Though I am not into struts for year now, So, please confirm the code.
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